WO2015036910A1 - Oxime ester photoinitiators - Google Patents
Oxime ester photoinitiators Download PDFInfo
- Publication number
- WO2015036910A1 WO2015036910A1 PCT/IB2014/064309 IB2014064309W WO2015036910A1 WO 2015036910 A1 WO2015036910 A1 WO 2015036910A1 IB 2014064309 W IB2014064309 W IB 2014064309W WO 2015036910 A1 WO2015036910 A1 WO 2015036910A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alkyl
- crc
- substituted
- unsubstituted
- interrupted
- Prior art date
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- -1 Oxime ester Chemical class 0.000 title claims abstract description 337
- 239000000203 mixture Substances 0.000 claims abstract description 171
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 17
- 229910052736 halogen Inorganic materials 0.000 claims description 225
- 150000002367 halogens Chemical group 0.000 claims description 222
- 229910052760 oxygen Inorganic materials 0.000 claims description 193
- 229910052717 sulfur Inorganic materials 0.000 claims description 187
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 176
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 159
- 125000006552 (C3-C8) cycloalkyl group Chemical group 0.000 claims description 135
- 239000001257 hydrogen Substances 0.000 claims description 88
- 229910052739 hydrogen Inorganic materials 0.000 claims description 88
- 150000001875 compounds Chemical class 0.000 claims description 86
- 239000000049 pigment Substances 0.000 claims description 86
- 125000001424 substituent group Chemical group 0.000 claims description 85
- 239000000758 substrate Substances 0.000 claims description 75
- 238000000034 method Methods 0.000 claims description 73
- 150000002431 hydrogen Chemical class 0.000 claims description 59
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 claims description 54
- 229920005989 resin Polymers 0.000 claims description 53
- 239000011347 resin Substances 0.000 claims description 53
- 229920006395 saturated elastomer Polymers 0.000 claims description 48
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 45
- 125000001624 naphthyl group Chemical group 0.000 claims description 45
- 229920001577 copolymer Polymers 0.000 claims description 43
- 239000000463 material Substances 0.000 claims description 43
- 239000000178 monomer Substances 0.000 claims description 40
- 238000004519 manufacturing process Methods 0.000 claims description 39
- 238000000576 coating method Methods 0.000 claims description 34
- 239000011159 matrix material Substances 0.000 claims description 33
- 125000001038 naphthoyl group Chemical group C1(=CC=CC2=CC=CC=C12)C(=O)* 0.000 claims description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims description 31
- 239000000975 dye Substances 0.000 claims description 29
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- 238000002360 preparation method Methods 0.000 claims description 25
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 23
- 230000003287 optical effect Effects 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 23
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- 239000000654 additive Substances 0.000 claims description 18
- 125000004432 carbon atom Chemical group C* 0.000 claims description 17
- 239000002270 dispersing agent Substances 0.000 claims description 17
- 239000003999 initiator Substances 0.000 claims description 14
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 14
- 238000007639 printing Methods 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 125000003356 phenylsulfanyl group Chemical group [*]SC1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 13
- 125000004946 alkenylalkyl group Chemical group 0.000 claims description 12
- 125000003118 aryl group Chemical group 0.000 claims description 12
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 12
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- 150000008064 anhydrides Chemical class 0.000 claims description 8
- 125000004399 C1-C4 alkenyl group Chemical group 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 238000010894 electron beam technology Methods 0.000 claims description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 7
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- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 6
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- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 claims description 6
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- 125000006710 (C2-C12) alkenyl group Chemical group 0.000 claims description 3
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- 150000001266 acyl halides Chemical class 0.000 claims description 3
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- BGCPLWWYPZAURQ-UHFFFAOYSA-N 5-[[5-chloro-2-(2,2,6,6-tetramethylmorpholin-4-yl)pyrimidin-4-yl]amino]-3-(3-hydroxy-3-methylbutyl)-1-methylbenzimidazol-2-one Chemical compound ClC=1C(=NC(=NC=1)N1CC(OC(C1)(C)C)(C)C)NC1=CC2=C(N(C(N2CCC(C)(C)O)=O)C)C=C1 BGCPLWWYPZAURQ-UHFFFAOYSA-N 0.000 claims 4
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- 239000011248 coating agent Substances 0.000 description 23
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 23
- 239000000126 substance Substances 0.000 description 22
- 210000004027 cell Anatomy 0.000 description 21
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- OACSUWPJZKGHHK-UHFFFAOYSA-N tribenzyl phosphate Chemical compound C=1C=CC=CC=1COP(OCC=1C=CC=CC=1)(=O)OCC1=CC=CC=C1 OACSUWPJZKGHHK-UHFFFAOYSA-N 0.000 description 1
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- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- WGKLOLBTFWFKOD-UHFFFAOYSA-N tris(2-nonylphenyl) phosphite Chemical compound CCCCCCCCCC1=CC=CC=C1OP(OC=1C(=CC=CC=1)CCCCCCCCC)OC1=CC=CC=C1CCCCCCCCC WGKLOLBTFWFKOD-UHFFFAOYSA-N 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- 125000003774 valeryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- KOZCZZVUFDCZGG-UHFFFAOYSA-N vinyl benzoate Chemical compound C=COC(=O)C1=CC=CC=C1 KOZCZZVUFDCZGG-UHFFFAOYSA-N 0.000 description 1
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- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
- C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
- C07D409/06—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/04—Indoles; Hydrogenated indoles
- C07D209/10—Indoles; Hydrogenated indoles with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring
- C07D209/12—Radicals substituted by oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
- C07D307/80—Radicals substituted by oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/82—Benzo [b] furans; Hydrogenated benzo [b] furans with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring
- C07D307/83—Oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/86—Benzo [b] furans; Hydrogenated benzo [b] furans with an oxygen atom directly attached in position 7
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/91—Dibenzofurans; Hydrogenated dibenzofurans
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/92—Naphthofurans; Hydrogenated naphthofurans
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/50—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
- C07D333/52—Benzo[b]thiophenes; Hydrogenated benzo[b]thiophenes
- C07D333/54—Benzo[b]thiophenes; Hydrogenated benzo[b]thiophenes with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
- C07D333/56—Radicals substituted by oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D407/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00
- C07D407/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings
- C07D407/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/201—Filters in the form of arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
- G03F7/0007—Filters, e.g. additive colour filters; Components for display devices
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
- G03F7/031—Organic compounds not covered by group G03F7/029
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
- G03F7/033—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
- G03F7/0388—Macromolecular compounds which are rendered insoluble or differentially wettable with ethylenic or acetylenic bands in the side chains of the photopolymer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/30—Imagewise removal using liquid means
- G03F7/32—Liquid compositions therefor, e.g. developers
Definitions
- Oxime ester photoinitiators The invention pertains to new oxime ester compounds which have specific benzo- (unsaturated 5-membered ring)-carbonyl group and their use as photoinitiators in pho- topolymerizable compositions, in particular in photoresist formulations for display applications, e.g. liquid crystal display (LCD), organic light emitting diode (OLED) and touch panel.
- LCD liquid crystal display
- OLED organic light emitting diode
- Oxime ester compounds having hetroaryl moieties are known in the art.
- CN 103044581 A macromolecular photoinitiators their preparation method and application thereof in photocurable compositions are provided.
- KR1225695B1 discloses a- ketoxime ester compounds as photopolymerization initiators.
- KR2013003305A oximino dithiocarbonate compounds containing furan-2-yl, 3-methylthiophen-2-yl, or 2- methylphenyl group are described as photoinitiators.
- CN102492060B discloses a di- phenyl sulfide oxime ester type photoinitiator which comprises a O or S-containing heterocyclic radical substituted aryl or aryl with at least one substituent containing O or S.
- the synthesis of certain iminonaphtho[2,3-b]furan derivatives from their respective car- bonyl precursors in the regiospecific and the stereospecific manners are described in Bioorganic & Medicinal Chemistry, Volume: 18, Issue: 14, Pages: 5172-5182.
- KR2013010621A discloses the preparation of an oxime ester compound by reacting a 9H-carbazole-based compound with dicyclohexylcarbodiimide by a dehydration condensation reaction.
- oxime ester compounds are for example provided in WO2010/060702 and WO08138724.
- WO 2004050653 A2 discloses oxime ester photoinitiators with het- eroaromatic groups.
- Color filters (CF) for LCD and white OLED which comprise a black matrix and red, green and blue color pixels on a glass substrate, are manufactured by photolithography using radically photopolymerizable resists.
- Overcoat layers for LCD are used to planarize a surface of the color filters and enhance orientation of liquid crystal and to prevent ion elution from CF to the liquid crystal.
- the overcoat is manufactured using a thermosetting resin based on an acrylate resin and/or epoxy resin on the color filter by heating, for example, at 220°C for 30 min. or in combination with photolithography prior to the post-baking process. Thermal stability, light resistance, adhesiveness, hardness and transparency are required.
- Spacer for LCD which controls a cell gap of the liquid crystal layer in LCD panels, is formed with high positional precision by photolithography using a photosensitive composition.
- the photospacer is manufactured by photolithography using radically polymerizable resists on overcoat or color filter. After photolithography, the photospac- er is baked, for example, at 220°C for 60 min. to attain thermal stability, mechanical strength, adhesiveness, cell gap controllability and high deformation restorability.
- a transparent column spacer has been widely used in the LCD technology, but the transparent spacer disturbs polarized light reducing the contrast ratio.
- One of a possi- ble solution is to mix with a black colorant not to scatter but to absorb the polarized light, i.e. a black column spacer.
- Black column spacer is also used in the LCD technology.
- the passivation layer in the backplane for LCD and OLED can be manufactured by photo lithography, as well as the bank layer/pixel definition layer for OLED.
- the transparent conductive layer for touch panel can be manufactured by photo lithography.
- photoinitiators to be employed in the photosensitive resins Therefore have to be highly reactive, easy to prepare and easy to handle.
- highly pigmented resists are required for the high color quality property.
- the curing of color resists becomes more difficult.
- photoinitiators having a high sensitivity are required.
- such new photoinitiators must meet the high requirements of the industry regarding properties like, for example, easy handling, high solubility, thermal stability and storage stability.
- the initiators in display applications should contribute to surface smoothness of a pattern, adhesiveness to the substrate etc.. Further, easy access to corresponding intermediates for the preparation of the compounds should be given. Thus, there still is a need for photoinitiator compounds providing a perfect balance of the requirements as given above. E.g. an acceptable balance between accessability in view of preparation methods and processes as well as properties of the compound as for example sensitivity, solubility etc.
- Ri is hydrogen, CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of
- C 6 -C 2 oaryl, C 3 -C 2 oheteroaryl, C 6 -C 2 oaroyl and C 3 -C 20 heteroarylcarbonyl which C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 20 alkylphenyl, CrC 8 alkoxyphenyl, C C 4 haloalkyl, CN, N0 2 , OR 3 , SR 4 or NR 5 R 6 ;
- R is C 2 -C 20 alkyl interrupted by one or more O, S, NR 5 , CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl, OH, SH, 0(CO)R 1a , (CO)OR 3 , (CO)NR 5 R 6 , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 - C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 - C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, C C 8 alkyl, OR 3 , SR 4 or NR 5 R 6 ;
- R is C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl, each of which is uninterrupted or interrupted by one or more O, S, CO, NR 5 or COOR 3 ;
- R is C 6 -C 20 aryl or C 3 -C 20 heteroaryl, each of which is unsubstituted or substituted by one or more halogen, CrC 20 alkyl, C C 4 haloalkyl, phenyl, CrC 20 alkylphenyl, C C 8 alkoxyphenyl, CN, N0 2 , OR 3 , SR 4 , NR 5 R 6 , COOR 3 , (CO)R 1a or S0 2 -R 1a ;
- R is CrC 20 alkoxy, which is unsubstituted or substituted by one or more CrCi 0 alkyl,
- R is C 2 -C 20 alkoxy, which is interrupted by one or more O, S, NR 5 , CO, SO or S0 2 ; or R is C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy, which C 6 -C 20 aryloxy or C 3 - C 20 heteroaryloxy is unsubstituted or substituted by one or more halogen, CrC 20 alkyl,
- R a is hydrogen, CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3a , SR 4a , NR 5a R 6a , CN, (CO)OR 3a , (CO)NR 5a R 6a , C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O, S, CO or NR 5a , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl and C 3 - C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 - C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, phenyl, C C 20 alkylphenyl, C C 8 alkoxyphenyl, C C 4 halo
- R 1a is C 2 -C 20 alkyl interrupted by one or more O, S, NR 5a , CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl, OH, SH, 0(CO)-(CrC 8 alkyl), (CO)OR 3a , (CO)NR 5a R 6a , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 - C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, C C 8 alkyl, OR 3a , SR 4a or NR 5a R 6a ;
- R 1a is C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl, each of which is uninterrupted or interrupted by one or more O, S, CO, NR 5a or COOR 3a ; or R 1a is C 6 -C 2 oaryl or C 3 -C 2 o eteroaryl, which C 6 -C 2 oaryl or C 3 -C 2 oheteroaryl is unsubstituted or substituted by one or more halogen, CrC 20 alkyl, C C 4 haloalkyl, phenyl, C C 20 alkylphenyl, C C 8 alkoxyphenyl, CN, N0 2 , OR 3a , SR 4a , NR 5a R 6 a, COOR 3a , (CO)-(C C 8 alkyl), benzoyl or S0 2 -(C C 4 haloalkyl);
- R 1a is CrC 20 alkoxy, which is unsubstituted or substituted by one or more CrCi 0 alkyl, Ci-C 4 haloalkyl, halogen, phenyl, CrC 20 alkylphenyl or CrC 8 alkoxyphenyl;
- R 1a is C 2 -C 20 alkoxy, which is interrupted by one or more O, S, NR 5a , CO, SO or S0 2 ; or R 1a is C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy, which C 6 -C 20 aryloxy or C 3 - C 20 heteroaryloxy is unsubstituted or substituted by one or more halogen, CrC 20 alkyl, C C 4 haloalkyl, phenyl, C C 20 alkylphenyl, C C 8 alkoxyphenyl, CN, N0 2, OR 3a , SR 4a ,
- R 2 is hydrogen, CN, (CO)Ri a , (CO)OR 3 , CONR 5 R 6 , N0 2 , PO(ORi a ) 2 or S(0) m Ri a ; or R 2 is CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3 , SR 4 , NR 5 R 6 , CN, (CO)OR 3 ,
- C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl and C 3 -C 20 heteroarylcarbonyl which C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 20 alkylphenyl, CrC 8 alkoxyphenyl, C C 4 haloalkyl, CN, N0 2 , OR 3 , SR 4 , NR 5 R 6 , PO(ORi a ) 2 or S(0) m Ri a ;
- R 2 is C 2 -C 20 alkyl interrupted by one or more O, S, NR 5 , CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl, OH, SH, 0(CO)R 1a , (CO)OR 3 , (CO)NR 5 R 6 , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 - C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 - C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, C C 8 alkyl, OR 3 , SR 4 or NR 5 R 6 ;
- R 2 is C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl, which C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl is uninterrupted or interrupted by one or more O, S, CO, NR 5 or COOR 3 ;
- R 2 is C 6 -C 20 aryl or C 3 -C 20 heteroaryl, which C 6 -C 20 aryl or C 3 -C 20 heteroaryl is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, 5 R 6 , COOR 3 , (CO)-R 1a (CO)NR 5 R 6 , PO(OR 1a ) 2 ,
- CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, COOR 3a , CONR 5 R 6 , phenyl, C 3 -C 8 cycloalkyl, C 3 -C 20 heteroaryl, OR 3 , SR 4 or NR 5 R 6 , C 2 -C 2 oalkyl which is interrupted by one or more O, S or NR 5 ,
- phenyl, naphthyl, benzoyl and naphthoyl which phenyl, naphthyl, benzoyl or naphthoyl is unsubstituted or substituted by one or more OR 3 , SR 4 or NR 5 R 6 ;
- R 2a is hydrogen, CN, (CO)R 1a , (CO)OR 3a , CONR 5a R 6 a, N0 2 , PO(OR 1a ) 2 or S(0) m R 1a ; or R 2a is CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of
- R 2a is C 2 -C 20 alkyl interrupted by one or more O, S, NR 5a , CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl, OH, SH, 0(CO)Ri a , (CO)OR 3a , (CO)NR 5a R 6a , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 - C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, C C 8 alkyl, OR 3a , SR 4a or NR 5a R 6a ;
- R 2a is C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl, which C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl is uninterrupted or interrupted by one or more O, S, CO, NR 5a or COOR 3a ;
- R 2a is C 6 -C 20 aryl or C 3 -C 20 heteroaryl, which C 6 -C 20 aryl or C 3 -C 20 heteroaryl is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, CN, N0 2 , OR 3a , SR 4a , NR 5a R 6a , COOR 3a , (CO)R 1a (CO)NR 5a R 6a , PO(OR 1a ) 2 , S(0) m R 1a ,
- CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, COOR 3a , CONR 5a R 6a , phenyl, C 3 -C 8 cycloalkyl, C 3 -C 20 heteroaryl, OR 3a , SR 4a or NR 5a R 6a ;
- phenyl, naphthyl, benzoyl and naphthoyl each of which phenyl, naphthyl, benzoyl or naphthoyl is unsubstituted or substituted by one or more OR 3a , SR 4a or NR 5a R 6a ;
- R 3 is hydrogen, (CO)Ri a , (CO)OR 3a , CONR 5 R 6 , C C 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3a , SR 4a , NR 5a R 6a , CN, (CO)OR 3a , (CO)NR 5a R 6a , PO(OR 1a ) 2 , S(0) m R 1a ,
- C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O, S, CO or NR 5a , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl and C 3 -C 20 heteroarylcarbonyl, which C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 20 alkylphenyl, CrC 8 alkoxyphenyl, C C 4 haloalkyl, CN, N0 2 , OR 3a , SR 4a , NR 5a R 6a , PO(OR 1a ) 2 or S(0) m R 1a ;
- R 3 is C 2 -C 20 alkyl interrupted by one or more O, S, NR 5a , CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl, OH, SH, 0(CO)Ri a , (CO)OR 3a , (CO)NR 5a R 6a , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 - C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, C C 8 alkyl, OR 3a , SR 4a or NR 5a R 6a ; or R 3 is C 2 -Ci 2 al
- R 3 is C 6 -C 20 aryl or C 3 -C 20 heteroaryl, which C 6 -C 20 aryl or C 3 -C 20 heteroaryl is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen NR 5a R 6a , COOR 3a , (CO)R 1a (CO)NR 5a R 6a , PO(OR 1a ) 2 ,
- CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, COOR 3a , CONR 5a R 6a , phenyl, C 3 -C 8 cycloalkyl, C 3 -C 20 heteroaryl, OR 3a , SR 4a or NR 5a R 6a ,
- phenyl, naphthyl, benzoyl and naphthoyl which phenyl, naphthyl, benzoyl or naphthoyl is unsubstituted or substituted by one or more OR 3a , SR 4a or NR 5a R 6a ;
- R 3 together with one of the carbon atoms of R 2 or M forms a 5- or 6-membered saturated or unsaturated ring which is uninterrupted or interrupted by O, S or NR 5a , and which 5- or 6-membered saturated or unsaturated ring is unsubstituted or substituted by one or more C C 20 alkyl, OR 3a , SR 4a , NR 5a R 6a , (CO)Ri a , - haloalkyl, CN, phenyl, C C 20 alkylphenyl, C C 8 alkoxyphenyl,
- R 3a is hydrogen, (CO)0(C C 8 alkyl) or CON(C C 8 alkyl) 2 ;
- R 3a is CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OH, SH, CN, C 3 -C 8 alkenoxy, OCH 2 CH 2 CN, OCH 2 CH 2 (CO)0(C C 8 alkyl), 0(CO)(C C 8 alkyl), 0(CO)(C 2 -C 4 )alkenyl, 0(CO)phenyl, (CO)OH, (CO)0(C C 8 alkyl), C 3 -C 8 cycloalkyl, S0 2 (C C 4 haloalkyl), 0(C C 4 haloalkyl), phenyl, CrC 8 alkylphenyl, CrC 8 alkoxyphenyl and C 3 -C 8 cycloalkyl which is interrupted by one or more O;
- R 3a is C 2 -C 20 alkyl interrupted by one or more O, S, N(CrC 8 alkyl), CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 - Cscycloalkyl, OH, SH, 0(CO)(C C 8 alkyl), (CO)0(C C 8 alkyl), (CO)N(C C 8 alkyl) 2 , C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, CrC 8 alkyl, CrC 8 alkoxy, CrC 8 alkylsulfany
- R 3a is C 2 -Ci 2 alkenyl or C 3 -C 8 cycloalkyl, which C 2 -Ci 2 alkenyl or C 3 -C 8 cycloalkyl is uninterrupted or interrupted by one or more O, S, CO, N(CrC 8 alkyl) or COO(C C 8 alkyl);
- R 3a is C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, which C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, CN, N0 2 , OH, CrC 8 alkyl, C C 4 haloalkyl, C C 8 alkoxy, phenyl-CrC 3 alkyloxy, phenoxy, CrC 8 alkylsulfanyl, phenylsulfanyl, N(C C 8 alkyl) 2 , diphenylamino, (CO)0(C C 8 alkyl), (CO)C C 8 alkyl or (CO)N(C C 8 )2, phenyl or benzoyl;
- R 3a is CrC 2 oalkanoyl or C 3 -Ci 2 alkenoyl, which CrC 20 alkanoyl or C 3 -Ci 2 alkenoyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 8 alkylphenyl, C C 8 alkoxyphenyl, OH, CrC 8 alkoxy, phenoxy, CrC 8 alkylsulfanyl, phenylsulfanyl, N(C C 8 alkyl) 2 or diphenylamino;
- R 4 is hydrogen, CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3a , SR 4a , NR 5a R6a, CN, (CO)OR 3a , (CO)NR 5a R 6a , PO(OR 1a ) 2 , S(0) m R 1a ,
- C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O, S, CO or NR 5a , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl and C 3 -C 20 heteroarylcarbonyl, which C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 20 alkylphenyl, CrC 8 alkoxyphenyl, C C 4 haloalkyl, CN, N0 2 , OR 3a , SR 4a , NR 5a R 6a , PO(OR 1a ) 2 or S(0) m R 1a ;
- R 4 is C 2 -C 20 alkyl interrupted by one or more O, S, NR 5a , CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl, OH, SH, 0(CO)Ri a , (CO)OR 3a , (CO)NR 5a R 6a , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 - C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, C C 8 alkyl, OR 3a , SR 4a or NR 5a R 6a ;
- R 4 is C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl, which C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl is uninterrupted or interrupted by one or more O, S, CO, NR 5a or COOR 3a ;
- R 4 is C 6 -C 20 aryl or C 3 -C 20 heteroaryl, which C 6 -C 20 aryl or C 3 -C 20 heteroaryl is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen a R 6a , COOR 3a , (CO)R 1a (CO)NR 5a R 6a , PO(OR 1a ) 2 ,
- CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, COOR 3a , CONR 5a R 6a , phenyl, C 3 -C 8 cycloalkyl, C 3 -C 20 heteroaryl, OR 3a , SR 4a or NR 5a R 6a ,
- phenyl, naphthyl, benzoyl and naphthoyl which phenyl, naphthyl, benzoyl or naphthoyl is unsubstituted or substituted by OR 3a , SR 4a or NR 5a R 6a ;
- R 4 together with one of the carbon atoms of R 2 or M forms a 5- or 6-membered saturated or unsaturated ring which is uninterrupted or interrupted by O, S or NR 5a , and which 5- or 6-membered saturated or unsaturated ring is unsubstituted or substituted by one or more C C 20 alkyl, OR 3a , SR 4a , NR 5a R 6a , (CO)R 1a , C C 4 - haloalkyl, CN, phenyl, C C 20 alkylphenyl, C C 8 alkoxyphenyl,
- R 4a is hydrogen, CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OH, SH, CN, C 3 - C 8 alkenoxy, OCH 2 CH 2 CN, OCH 2 CH2(CO)0(CrC 8 alkyl), 0(CO)(C C 8 alkyl), 0(CO)(C 2 - C 4 )alkenyl, 0(CO)phenyl, (CO)OH, (CO)0(C C 8 alkyl), C 3 -C 8 cycloalkyl, S0 2 (C C 4 haloalkyl), 0(CrC 4 haloalkyl), phenyl, CrC 8 alkylphenyl, CrC 8 alkoxyphenyl and C 3 - Cscycloalkyl which is interrupted by one or more O;
- R 4a is C 2 -C 20 alkyl interrupted by one or more O, S, N(CrC 8 alkyl), CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 - Cscycloalkyl, OH, SH, 0(CO)(C C 8 alkyl), (CO)0(C C 8 alkyl), (CO)N(C C 8 alkyl) 2 , C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substitut- ed by one or more halogen, CrC 8 alkyl, CrC 8 alkoxy, CrC 8 alkyl
- R 4a is C 2 -Ci 2 alkenyl or C 3 -C 8 cycloalkyl, which C 2 -Ci 2 alkenyl or C 3 -C 8 cycloalkyl is uninterrupted or interrupted by one or more O, S, CO, N(CrC 8 alkyl) or COO(C C 8 alkyl);
- R 4a is C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, which C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, CN, N0 2 , OH, CrC 8 alkyl, C C 4 haloalkyl, C C 8 alkoxy, phenyl-CrC 3 alkyloxy, phenoxy, CrC 8 alkylsulfanyl, phenylsulfanyl, N(C C 8 alkyl) 2 , diphenylamino, (CO)0(C C 8 alkyl), (CO)C C 8 alkyl, (CO)N(C C 8 ) 2 , phenyl or benzoyl;
- R 4a is CrC 20 alkanoyl or C 3 -Ci 2 alkenoyl, which CrC 20 alkanoyl or C 3 -Ci 2 alkenoyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 8 alkylphenyl, C C 8 alkoxyphenyl, OH, CrC 8 alkoxy, phenoxy, CrC 8 alkylsulfanyl, phenylsulfanyl, N(C C 8 alkyl) 2 or diphenylamino;
- R 5 and R 6 independently of each other are hydrogen, S(0) m Ri a , 0(CO)Ri a , (CO)Ri a or CONR 5a R 6a ;
- R 5 and R 6 independently of each other are CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3a , SR 4a , NR 5a R 6a , CN, (CO)OR 3a , (CO)NR 5a R 6a , PO(OR 1a ) 2 , S(0) m R 1a ,
- C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O, S, CO or NR 5a , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl and C 3 -C 20 heteroarylcarbonyl, which C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 20 alkylphenyl, CrC 8 alkoxyphenyl, C C 4 haloalkyl, CN, N0 2 , OR 3a , SR 4a , NR 5a R 6a , PO(OR 1a ) 2 or S(0) m R 1a ;
- R 5 and R 6 independently of each other are C 2 -C 20 alkyl interrupted by one or more O, S, NR 5a , CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl, OH, SH, 0(CO)R 1a , (CO)OR 3a , (CO)NR 5a R 6a , C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substitut- ed by one or more halogen, CrC 8 alkyl, OR 3a , SR 4a or NR 5a R 6a ;
- R 5 and R 6 independently of each other are C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl, which C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl is uninterrupted or interrupted by one or more O, S, CO, NR 5a or COOR 3a ; or R 5 and R 6 independently of each other are C 6 -C 2 oaryl or C 3 -C 2 oheteroaryl, which C 6 - C 2 oaryl or C 3 -C 2 oheteroaryl is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, NR 5a R6a, COOR 3a ,
- CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, COOR 3a , CONR 5a R 6a , phenyl, C 3 -C 8 cycloalkyl, C 3 -C 20 heteroaryl, OR 3a , SR 4a or NR 5a R 6a ,
- phenyl, naphthyl, benzoyl and naphthoyl which phenyl, naphthyl, benzoyl or naphthoyl is unsubstituted or substituted by OR 3a , SR 4a or NR 5a R 6a ;
- R 5 and R 6 independently of each other are CrC 20 alkoxy, which is unsubstituted or substituted by one or more halogen, phenyl, CrC 8 alkylphenyl or CrC 8 alkoxyphenyl; or R 5 and R 6 independently of each other are C 2 -C 20 alkoxy, which is interrupted by one or more O, S, NR 5a , CO, SO or S0 2 ;
- R 5 and R 6 independently of each other are C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy, which C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy is unsubstituted or substituted by one or more halogen, d-C 8 alkyl, C C 4 haloalkyl, phenyl, CrC 8 alkylphenyl, CrC 8 alkoxyphenyl, CN, N0 2 , OR 3a , SR 4a , N R5aR6a, COOR 3a , (CO)Ria or S0 2 R 1a ;
- R 5 together with one of the carbon atoms of R 2 or M forms a 5- or 6-membered saturated or unsaturated ring which is uninterrupted or interrupted by O, S or NR 5a , and which 5- or 6-membered saturated or unsaturated ring is unsubstituted or substituted by one or more C C 20 alkyl, OR 3a , SR 4a , NR 5a R 6a , (CO)Ri a , N0 2 , halogen, C C 4 - haloalkyl, CN, phenyl, C C 20 alkylphenyl, C C 8 alkoxyphenyl,
- R 5 and R 6 together with the N-atom to which they are attached form a 5- or 6- membered saturated or unsaturated ring which is uninterrupted or interrupted by O, S or NR 5a , and which 5- or 6-membered saturated or unsaturated ring is unsubstituted or substituted by one or more CrC 20 alkyl, OR 3a , SR 4a , NR 5a R 6a , (CO)Ri a , N0 2 , halogen,
- Ci-C 4 -haloalkyl, CN, phenyl, — C N— o— c— R 1 A or C 3 -C 20 cyclalkyl which is uninter- rupted or interrupted by one or more O, S, CO or NR 5a ;
- R 5a and R 6a independently of each other are hydrogen, CrC 20 alkyl, S(0) m (CrC 8 alkyl), 0(CO)(C C 8 alkyl), (CO)(C C 8 alkyl), (CO)0(C C 8 alkyl) or CON(C C 8 alkyl) 2 ;
- R 5a and R 6a independently of each other are CrC 20 alkyl substituted by one or more halogen, OH, SH, CN, C 3 -C 8 alkenoxy, OCH 2 CH 2 CN, OCH 2 CH 2 (CO)0(C C 8 alkyl), 0(CO)(C C 8 alkyl), 0(CO)(C 2 -C 4 )alkenyl, 0(CO)phenyl, (CO)OH, (CO)0(C C 8 alkyl), C 3 -C 8 cycloalkyl, S0 2 (C C 4 haloalkyl), 0(C C 4 haloalkyl), phenyl, C C 8 alkylphenyl, C C 8 alkoxyphenyl, C 3 -C 8 cycloalkyl or C 3 -C 8 cycloalkyl which is interrupted by one or more O; or R 5a and R 6a independently of each other are C 2 -C 2 oalkyl interrupted by
- R 5a and R 6a independently of each other are C 2 -Ci 2 alkenyl or C 3 -C 8 cycloalkyl, which C 2 -Ci 2 alkenyl or C 3 -C 8 cycloalkyl is uninterrupted or interrupted by one or more O, S, CO, N(C C 8 alkyl) or COO(C C 8 alkyl);
- R 5a and R 6a independently of each other are C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 - C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, which C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, CN , N0 2 , OH , CrC 8 alkyl, CrC 4 haloalkyl, CrC 8 alkoxy, phenyl-CrC 3 alkyloxy, phenoxy, C C 8 alkylsulfanyl, phenylsulfanyl, N(CrC 8 alkyl) 2 , diphenylamino, (CO)0(CrC 8 alkyl), (CO)C C 8 alkyl, (CO)N(C C 8 alkyl) 2 ,
- R 5a and R 6a independently of each other are CrC 20 alkanoyl or C 3 -Ci 2 alkenoyl, which CrC 20 alkanoyl or C 3 -Ci 2 alkenoyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 8 alkylphenyl, CrC 8 alkoxyphenyl, OH , CrC 8 alkoxy, phenoxy, C C 8 alkylsulfanyl, phenylsulfanyl, N(CrC 8 alkyl) 2 or diphenylamino;
- R 5a and R 6a independently of each other are CrC 20 alkoxy, which is unsubstituted or substituted by one or more halogen, phenyl, CrC 8 alkylphenyl or CrC 8 alkoxyphenyl; or R 5a and R 6a independently of each other are C 2 -C 20 alkoxy, which is interrupted by one or more O, S, N(C C 8 alkyl), CO, SO or S0 2 ;
- R 5a and R 6a independently of each other are C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy, which C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy is unsubstituted or substituted by one or more halogen, CrC 8 alkyl, C C 4 haloalkyl, phenyl, CrC 8 alkylphenyl, CrC 8 alkoxyphenyl, CN , N0 2 , C C 8 alkoxy, C C 8 alkylsulfanyl, N(C C 8 alkyl) 2 , CO(OC C 8 alkyl), (CO)(C C 8 alkyl) or S0 2 -(C C 8 alkyl);
- R 5a and R 6a together with the N-atom to which they are attached form a 5- or 6- membered saturated or unsaturated ring which is uninterrupted or interrupted by O, S or N(CrC 8 alkyl), and which 5- or 6-membered saturated or unsaturated ring is unsubstituted or substituted by one or more CrC 8 alkyl, CrC 8 alkoxy, CrC 8 alkylsulfanyl, N (C C 8 alkyl) 2 , N0 2 , halogen, C C 4 haloalkyl, CN , phenyl or C 3 -C 20 cyclalkyl which is uninter- rupted or interrupted by one or more O, S, CO or N(CrC 8 alkyl);
- R 7 , R 8 , R9, R10 and Rn independently of each other are hydrogen, CrC 20 alkyl, halog SR 4 , N R 5 R 6 , COOR 3 , (CO)R 1 a , (CO)N R 5 R 6 , PO(OR 1 a ) 2 , S(0) m R 1 a , , wherein the substituents OR 3 , SR 4 or N R 5 R 6 optionally form
- R 3 , R 4 , R 5 or R 6 with further substituents on the group X; or R 7 , R 8 , Rg, Rio and Rn independently of each other are CrC 20 alkyl substituted by one or more substituents selected from the group consisting of halogen, OR 3 , SR 4 , NR 5 R 6 , CN, (CO)OR 3 , (CO)N R 5 R 6 , PO(OR 1 a ) 2 , S(0) m R 1 a ,
- C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O, S, CO or NR 5 , C 6 -C 2 oaryl, C 3 -C 2 oheteroaryl, C 6 -C 20 aroyl and C 3 -C 20 heteroarylcarbonyl, which C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 20 alkylphenyl, CrC 8 alkoxyphenyl, C C 4 haloalkyl, CN, N0 2 , OR 3 , SR 4 , NR 5 R 6 , PO(ORi a ) 2 or S(0) m Ri a ;
- R 7 , R 8 , Rg, Rio and Rn independently of each other are C 2 -C 20 alkyl interrupted by one or more O, S, NR 5 , CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by C 3 -C 8 cycloalkyl, OH , SH, 0(CO)R 1 a , (CO)OR 3 , (CO)NR 5 R 6 , C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, CrC 8 alkyl, OR 3 , SR 4 or NR 5 R 6 ;
- R 7 , R 8 , R 9 , R 10 and Rn independently of each other are C 2 -Ci 2 alkenyl or C 3 - C 20 cycloalkyl, which C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl is uninterrupted or interrupted by one or more O, S, CO, N R 5 or COOR 3 ;
- R 7 , R 8 , R 9 , R 10 and Rn independently of each other are C 6 -C 20 aryl or C 3 -C 20 hetero- aryl, which C 6 -C 20 aryl or C 3 -C 20 heteroaryl is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, CN, N0 2 , OR 3 , SR 4 ,
- CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, COOR 3a , CONR 5 R 6 , phenyl, C 3 -C 8 cycloalkyl, C 3 -C 20 heteroaryl, OR 3 , SR 4 or NR 5 R 6 ,
- phenyl, naphthyl, benzoyl and naphthoyl which phenyl, naphthyl, benzoyl or naphthoyl is unsubstituted or substituted by OR 3 , SR 4 or NR 5 R 6 ;
- R 8 and R 9 , R 9 and R 10 , or R 10 and Rn are I I I I ;
- Ri2, Ri 3 , Ri4 and R 5 independently of each other are hydrogen, CrC 20 alkyl, halogen, CN, N0 2 , OR 3 , SR 4 , NR 5 R 6 , COOR 3 , (CO)R 1 a , (CO)NR 5 R 6 , PO(OR 1 a ) 2 , S(0) m R 1 a , Q L N o II p , wherein the substituents OR 3 , SR 4 or NR 5 R 6 optionally form a
- R 12 , R 13 , R 14 and R 15 independently of each other are CrC 20 alkyl substituted by one or more substituents selected from the group consisting of halogen, OR 3 , SR 4 , NR 5 R 6 , CN, (CO)OR 3 , (CO)NR 5 R 6 , PO(OR 1 a ) 2 , S(0) m R 1 a ,
- C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O, S, CO or NR 5 , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl and C 3 -C 20 heteroarylcarbonyl, which C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 2 oalkylphenyl, CrC 8 alkoxyphenyl, C C 4 haloalkyl, CN, N0 2 , OR 3 , SR 4 , NR 5 R 6 , PO(ORi a ) 2 or S(0) m Ri a ;
- R 12 , Ri 3 , Ri 4 and R 15 independently of each other are C 2 -C 20 alkyl interrupted by one or more O, S, NR 5 , CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by C 3 -C 8 cycloalkyl, OH, SH, 0(CO)R 1a , (CO)OR 3 , (CO)NR 5 R 6 , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 - C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, d-C 8 alkyl, OR 3 , SR 4 or NR 5 R 6 ;
- R 12 , R 13 , R 14 and R 15 independently of each other are C 2 -Ci 2 alkenyl or C 3 -C 20 cyclo- alkyl, which C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl is uninterrupted or interrupted by one or more O, S, CO, NR 5 or COOR 3 ;
- R 12 , R 13 , R 14 and R 15 independently of each other are C 6 -C 20 aryl or C 3 -C 20 heteroaryl, which C 6 -C 20 aryl or C 3 -C 20 heteroaryl is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, CN, N0 2 , OR 3 , SR 4 , NR 5 R 6 ,
- CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, COOR 3a , CONR 5 R 6 , phenyl, C 3 -C 8 cycloalkyl, C 3 -C 20 heteroaryl, OR 3 , SR 4 or NR 5 R 6 ,
- phenyl, naphthyl, benzoyl and naphthoyl which phenyl, naphthyl, benzoyl or naphthoyl is unsubstituted or substituted by OR 3 , SR 4 or NR 5 R 6 ;
- Ri 6 and R 7 independently of each other are hydrogen, CrC 20 alkyl, which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3 , SR 4 , NR 5 R 6 , CN, (CO)OR 3 , (CO)NR 5 R 6 , C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O, S, CO or NR 5 ,
- C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl and C 3 -C 20 heteroarylcarbonyl which C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 20 alkylphenyl, CrC 8 alkoxyphenyl, C C 4 haloalkyl, CN, N0 2 , OR 3 , SR 4 or NR 5 R 6 ;
- R 16 and R 17 independently of each other are C 2 -C 20 alkyl interrupted by one or more O, S, NR 5 , CO, SO or S0 2 , which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by C 3 -C 8 cycloalkyl, OH, SH, 0(CO)R 1a , (CO)OR 3 , (CO)NR 5 R 6 , C 6 -C 20 aryl, C 3 -C 20 het- eroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl, wherein C 6 -C 20 aryl, C 3 -C 20 heteroaryl,
- C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, C C 8 alkyl, OR 3 , SR 4 or NR 5 R 6 ;
- R 16 and R 17 independently of each other are C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl, which
- C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl is uninterrupted or interrupted by one or more O, S,
- R 16 and R 17 independently of each other are C 6 -C 20 aryl or C 3 -C 20 heteroaryl, which C 6 -C 20 aryl or C 3 -C 20 heteroaryl is unsubstituted or substituted by one or more halogen, CrC 20 alkyl, C C 4 haloalkyl, phenyl, CrC 20 alkylphenyl, CrC 8 alkoxyphenyl, CN, N0 2 , OR 3 , SR 4 , NR 5 R 6 , COOR 3 , (CO)Ri a or S0 2 Ri a ; or R 16 and R 17 together with the carbon atom to which they are attached form a 5- or 6- membered saturated or unsaturated ring which is uninterrupted or interrupted by O, S or NR 5a , and which 5- or 6-membered saturated or unsaturated ring is unsubstituted or substituted by one or more CrC 20 alkyl, OR 3a , SR 4a , NR 5
- ents selected from the group consisting of halogen, CN, N0 2 , COOR 3 , (CO)Ri a ,
- OR 3 , SR 4 , NR 5 R 6 wherein the substituents OR 3 , SR 4 or NR 5 R 6 optionally form 5- or 6- membered rings via the radicals R 3 , R 4 , R 5 or R 6 with further substituents on the phenyl ring,
- CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, COOR 3 , CONR 5 R 6 , phenyl, C 3 -C 8 cycloalkyl, C 3 -C 20 heteroaryl, OR 3 , SR 4 or NR 5 R 6 ,
- C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl which C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl is uninterrupted or interrupted by one or more O, S, CO, NR 5 or COOR 3 ,
- phenyl, naphthyl, benzoyl and naphthoyl which phenyl, naphthyl, benzoyl or naphthoyl is unsubstituted or substituted by O
- Ar 2 is phenylene, naphthylene, phenylenecarbonyl, naphthylenecarbonyl,
- CrC 2 oalkyl which is unsubstituted or substituted by one or more halogen, COOR 3 , CONR 5 R 6 , phenyl, C 3 -C 8 cycloalkyl, C 3 -C 20 heteroaryl, OR 3 , SR 4 or NR 5 R 6 ,
- C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl which C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl is uninterrupted or interrupted by one or more O, S, CO, NR 5 or COOR 3 ,
- phenyl, naphthyl, benzoyl and naphthoyi which phenyl, naphthyl, benzoyl or naphthoyi is unsubstituted or substituted by OR 3 , SR 4 or NR 5 R 6 ;
- M is CrC 20 alkylene which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3 , SR 4 , NR 5 R 6 , CN, (CO)OR 3 , (CO)NR 5 R 6 ,
- C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O, S, CO or NR 5 , C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl and C 3 -C 20 heteroarylcarbonyl, which C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, phenyl, CrC 20 alkylphenyl, CrC 8 alkoxyphenyl, C C 4 haloalkyl, CN, N0 2 , OR 3 , SR 4 or NR 5 R 6 ;
- M is C 2 -Ci 2 alkenylene or C 3 -C 20 cycloalkylene, which C 2 -Ci 2 alkenylene or C 3 - C 20 cycloalkylene is uninterrupted or interrupted by one or more O, S, CO, NR 5 or COOR 3 ;
- M is C 6 -C 20 arylene or C 3 -C 20 heteroarylene, which C 6 -C 20 arylene or C 3 -C 20 hetero- arylene is unsubstituted or substituted by one or more halogen, CrC 20 alkyl, C C 4 halo- alkyl, phenyl, C C 20 alkylphenyl, C C 8 alkoxyphenyl, CN, N0 2 , OR 3 , SR 4 , NR 5 R 6 ,
- Y is a direct bond, O, S, NR 5 or CO;
- ⁇ ! is O, S, CO or CR 16 (Ri 7 );
- Z 2 is a direct bond, O, S or NR 5 ;
- n 1 or 2;
- ds are a-ketoxime ester photopolymerisation ilnitiators containing 9 rou P s - wherein A, R 7 , Re, R9, R10 and Rn are as defined above.
- CrC 20 alkyl is linear or branched and is, for example, C Ci 8 -, C Ci 4 -, C1-C12-, C C 8 -, Ci-C 6 - or Ci-C 4 alkyl.
- Examples are methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, pentyl, hexyl, heptyl, 2,4,4-trimethylpentyl, 2-ethylhexyl, octyl, nonyl, decyl, dodecyl, tetradecyl, pentadecyl, hexadecyl, octadecyl and icosyl.
- CrC 4 haloalkyl is C C 4 alkyl which is mono- or poly-substituted by halogen up to the exchange of all H-atoms by halogen. Examples are chloromethyl, trichloromethyl, tri- fluoromethyl or 2-bromopropyl, especially trifluoromethyl or trichloromethyl.
- C 2 -C 20 alkyl interrupted by one or more O, S, NR 5 , CO, SO or S0 2 is for example interrupted 1-9, 1-7 or once or twice by the defined radicals.
- said O-atoms are separated from one another by at least one methylene group, i.e. the O-atoms are non-consecutive.
- the alkyl groups in the interrupted alkyl are linear or branched.
- C 3 -C 2 ocycloalkyl or C 3 -C 8 cycloalkyl is a mono- or polycyclic aliphatic ring, for example a mono-, bi- or tricyclic aliphatic ring, e.g. C 3 -Ci 8 -, C3-C12-, C 3 -Ci 0 cycloalkyl.
- monocyclic rings are cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, or cycloheptyl, especially cyclopentyl and cyclohexyl.
- polycyclic rings are perhydroan- thracyl, perhydrophenyathryl, perhydronaphthyl, perhydrofluorenyl, perhydrochrysenyl, perhydropicenyl, adamantyl, bicyclo[1.1.1]pentyl, bicyclo[4.2.2]decyl, bicy- clo[2.2.2]octyl, bicyclo[3.3.2]decyl, bicyclo[4.3.2]undecyl, bicyclo[4.3.3]dodecyl, bicy- clo[3.3.3]undecyl, bicyclo[4.3.1]decyl, bicyclo[4.2.1]nonyl, bicyclo[3.3.1]nonyl, bicy- clo[3.2.1]octyl, > ⁇ and the like.
- spiro-cycloalkyl compounds are covered by the definition C 3 -C 2 ocycloalkyl in the present context, e.g. spiro[5.2]octyl, spiro[5.4]decyl, spiro[5.5]undecyl.
- More examples of polycyclic cycloalkyl groups, which are subject of the respective definition in the compounds of the present invention are listed in EP 878738, page 1 1 and 12, wherein to the formulae (1)-(46) a bond to achieve the "yl" has to be added. The person skilled in the art is aware of this fact.
- C 3 -C 8 cycloalkyl which is interrupted by one or more O, S, CO or NR 5 refers to C 3 - Cscycloalkyl as defined above, wherein at least one C-atom is replaced by O, S, CO or NR 5 .
- C 2 -C 12 alkenyl is mono or polyunsaturated, linear or branched and is for example C 2 -C 8 - , C 2 -C 6 - or C 2 -C 4 alkenyl.
- Examples are allyl, methallyl, vinyl, 1 , 1-dimethylallyl, 1-buten- yl, 3-butenyl, 2-butenyl, 1 ,3-pentadienyl, 5-hexenyl or 7-octenyl, especially allyl or vinyl.
- CrC 2 oalkoxy is linear or branched and is for example C Ci 8 -, C Ci 6 -, C Ci 2 -, C C 8 -, Ci-C 6 - or CrC 4 -alkoxy.
- Examples are methoxy, ethoxy, propoxy, isopropoxy, n- butyloxy, sec-butyloxy, iso-butyloxy, tert-butyloxy, pentyloxy, hexyloxy, heptyloxy, 2,4,4-trimethylpetyloxy, 2-ethylhexyloxy, octyloxy, nonyloxy, decyloxy, dodecyloxy, hexadecyloxy, octadecyloxy or icosyloxy, in particular methoxy, ethoxy, propoxy, isopropoxy, n-butyloxy, sec-butyloxy, iso-butyloxy, tert-buty
- C 2 -C 20 alkoxy which is interrupted by one or more O, S, NR 5 , CO, SO or S0 2 is for example interrupted 1-9, 1-7, 1-4 or once or twice by the defined radicals.
- said O-atoms are separated from one an- other by at least one methylene group, i.e. the O-atoms are non-consecutive. Examples are the following structural units -0-CH 2 -0-CH 3 , -O-CH2CH2-O-CH2CH 3 ,
- CrC 8 alkylsulfanyl is linear or branched, for example, me- thylsulfanyl, ethylsulfanyl, propylsulfanyl, isopropylsulfanyl, n-butylsulfanyl, sec- butylsulfanyl, isobutylsulfanyl, tert-butylsulfanyl, etc.
- Examples are formyl, acetyl, propionyl, butanoyl, isobutanoyl, pentanoyl, hexanoyl, heptanoyl, octanoyl, nonanoyl, decanoyl, dodecanoyl, tetradecanoyl, pentadecanoyl, hexadeca- noyl, octadecanoyl, icosanoyl, preferably acetyl.
- C3-C 12 alkenoyl is mono or polyunsaturated.
- Examples are propenoyl, 2-methyl- propenoyl, butenoyl, pentenoyl, 1 ,3-pentadienoyl, 5-hexenoyl, etc.
- Halogen is fluorine, chlorine, bromine and iodine, especially fluorine, chlorine and bromine, preferably fluorine and chlorine.
- CrC 2 oalkyl henyl corresponds to phenyl that is substituted once or more times by alkyl at the phenyl ring and is for example C Ci 2 alkyl-, CrC 8 alkyl- or C C 4 alkylphenyl, wherein the number of the alkyl corresponds to the total number of all C-atoms in all alkyl-subtstituents at the phenyl ring. Examples are tolyl, xylyl, mesityl, ethylphenyl, diethylphenyl, in particular tolyl and mesityl.
- CrC 8 alkoxyphenyl corresponds to phenyl that is substituted once or more times by alkoxyl at the phenyl ring and is for example C C 4 alkoxyphenyl, wherein the number of the alkoxy corresponds to the total number of all C-atoms in all alkoxy-subtstituents at the phenyl ring. Examples are methoxyphenyl, dimethoxyphenyl, trimethoxyphenyl, ethoxyphenyl, diethoxyphenyl, ect..
- C 6 -C 20 aryl is for example phenyl, naphthyl, anthryl or phenanthryl, in particular phenyl or naphthyl, preferably phenyl.
- Naphthyl corresponds to 1-naphthyl and 2-naphthyl.
- C 6 -C 20 aroyl corresponds to C 6 -C 20 aryl-CO-, wherein C 6 -C 20 aryl is defined as above. Examples are benzoyl, naphthoyl etc..
- C 3 -C 2 oheteroaryl is meant to comprise either a one ring or a multiple ring system, e.g. a fused ring-system.
- Examples are thienyl, benzo[b]thienyl, naphtho[2,3-b]thienyl, thi- anthrenyl, furyl, dibenzofuryl, benzofuryl, chromenyl, xanthenyl, thioxanthyl, phenox- athiinyl, pyrrolyl, imidazolyl, pyrazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, indolizinyl, isoindolyl, indolyl, indazolyl, purinyl, quinolizinyl, isoquinolyl, quinolyl, phthalazinyl, naphthyridinyl, quinoxalinyl, quina
- C 3 -C 2 oheteroaryl in particular is thienyl, benzo[b]thienyl, furyl, benzofuryl, thianthrenyl, thioxanthyl, 1-methyl-2-indolyl or 1-methyl-3-indolyl.
- C3-C 2 oheteroarylcarbonyl corresponds to C 3 -C 2 oheteroaryl-CO-, wherein C 3 -C 20 hetero- aryl is defined as above.
- C 3 -C 2 oheteroaryloxy corresponds to C 3 -C 2 oheteroaryl-0-, wherein C 3 -C 2 oheteroaryl is defined as above.
- C r C 20 alkylene is linear or branched and is for example , C Ci 8 -, C Ci 4 -, C Ci 2 -, C C 8 -, Ci-C 6 - or Ci-C 4 alkylene.
- Examples are methylene, ethylene, propylene, 1-methyl- ethylene 1 , 1-dimethylethylene, butylene, 1-methylpropylene, 2-methyl-propylene, pen- tylene, hexylene, heptylene, octylene, nonylene, decylene, dodecylene, tetradecylene, hexadecylene or octadecylene.
- C 2 -C 20 alkylene interrupted by one or more O, S, NR 5 , CO, SO or S0 2 is, for example, interrupted 1-9 times, for example 1-7 times or once or twice by the defined substitu- ents and the C 2 -C 2 oalkylene is linear or branched.
- C 2 -C 12 alkenylene is mono- or polyunsaturated, linear or branched and is, for example, Ci-C 8 -, Ci-C 6 - or CrC 4 alkenylene.
- Examples are ethenylene, 1-propenylene, 1- butenylene, 3-butenylene, 2-butenylene, 1 ,3-pentadienylene, 5-hexenylene, 7-octen- ylene, etc..
- C3-C2ocycloalkylene consists of a two valent mono- or polycyclic aliphatic ring, for example a mono-, bi- or tricyclic aliphatic ring, e.g. C 3 -Ci 8 -, C 3 -Ci 2 -, C 3 -Ci 0 cycloalkylene.
- Examples are c clopropylene, cyclopentylene, cyclohexylene, cyclooctylene, cyclodo- decylene,
- C 6 -C 20 arylene is for example phenylene, biphenylene, o-, m- and p-terphenylene, tri- phenylphenylene, naphthylene, binaphthylene, anthracenylene, phenanthrylene or pyrenylene, in particular phenylene or naphthylene, especially phenylene.
- C 3 -C 20 heteroarylene refers to C 3 -C 20 heteroaryl as defined above however instead of being one-valent C 3 -C 20 heteroarylene groups are two valent.
- R 5 and R 6 together with the N-atom to which they are attached form a 5- or 6- membered saturated or unsaturated ring which is uninterrupted or interrupted by O, S or NR 5a , saturated or unsaturated rings are formed, for example aziridine, pyrrole, thia- zole, pyrrolidine, oxazole, pyridine, 1 ,3-diazine, 1 ,2-diazine, piperidine or morpholine.
- R 5 and R 6 together with the N-atom to which they are attached form a 5- or 6-membered saturated or unsaturated ring which optionally is interrupted by O, S or NR 5a , 5- or 6-membered saturated rings which are not interrupted or which are interrupted by O or NR 5a , in particular by O, are formed.
- R 5a and R 6a together with the N-atom to which they are attached form a 5- or 6- membered saturated or unsaturated ring which is uninterrupted or interrupted by O, S or N(CrC 8 alkyl), saturated or unsaturated rings are formed as described above for R 5 and R 6 forming a ring with the N-atom.
- R 16 and R 17 together with the carbon atom to which they are attached form a 5- or 6- membered saturated or unsaturated ring which is uninterrupted or interrupted by O, S or NR 5a , saturated or unsaturated rings are formed, for example, pyrrole, thiazole, pyrrolidine, oxazole, pyridine, piperidine or morpholine.
- saturated or unsaturated rings are formed, for example, pyrrole, thiazole, pyrrolidine, oxazole, pyridine, piperidine or morpholine.
- R 16 and R 17 together with the carbon to which they are attached form a 5- or 6-membered saturated or unsaturated ring which optionally is interrupted by O, S or NR 5a , 5- or 6-membered satu- rated rings which are not interrupted or which are interrupted by O or NR 5a , in particular by O, are formed.
- I C 2 oaryl, C 3 -C 2 oheteroaryl, C
- OR 3 , SR 4 , N R 5 R 6 and wherein the substituents OR 3 , SR 4 or NR 5 R 6 form 5- or 6-membered rings via the radicals R 3 , R 4 , R 5 or R 6 with further substituents on the phen l ring, for example structures like
- X, M, Y and Zi are as defined above).
- aryl radicals phenyl, naphthyl, C 6 -C 20 aryl, C 5 -C 20 heteroaryl, C 6 -C 20 arylene or C 3 -C 20 heteroarylene etc. are substituted 1 to 7, 1 to 6 or 1 to 4 times respectively, in particular one, two or three times. It is evident that a defined aryl or heteroaryl radical cannot have more substituents than free "CH” or "NH" positions are at the defined ring.
- Substituents on the phenyl ring are preferably in positions 4 or in 3,4-, 3,4,5-, 2,6-, 2,4- or 2,4,6-configuration on the phenyl ring.
- Interrupted radicals which are interrupted once or more times are for example interrupted 1-19, 1-15, 1-12, 1-9, 1-7, 1-5, 1-4, 1-3 or once or twice (it is evident, that the number of interrupting atoms depends on the number of C-atoms to be interrupted).
- Substituted radicals, which are substituted once or more times have for example 1-7, 1-5, 1-4, 1-3 or one or two identical or different substituents.
- a radical substituted by one or more defined substituents is meant to have either one substituent or more substituents of identical or different definitions as given
- the term "at least' is meant to define one or more than one, for example one or two or three, preferably one or two.
- Oxime esters of formula I and II are prepared by methods described in the literature, for example by reaction of the corresponding oximes with an acyl halide, in particular a chloride, or an anhydride in an inert solvent such as for example t-butyl methyl ether, tetra-hydrofurane (THF), dimethoxyethane, dimethylacetamide (DMA) or dimethylfor- mamide in the presence of a base or a mixture of bases, for example triethylamine or pyridine, or in a basic solvent such as pyridine.
- an acyl halide in particular a chloride
- an anhydride such as for example t-butyl methyl ether, tetra-hydrofurane (THF), dimethoxyethane, dimethylacetamide (DMA) or dimethylfor- mamide
- THF tetra-hydrofurane
- DMA dimethylacetamide
- Hal means a halogen atom, particular CI.
- Ri preferably is methyl.
- Every oxime ester group can exist in two configurations, (Z) or (E). And the invention covers both, the E and the Z configuration. It is possible to separate the isomers by conventional methods, but it is also possible to use the isomeric mixture as such as photoinitiating species. Therefore, the invention also relates to mixtures of configura- tional isomers of compounds of the formulae I and II.
- oximes required as starting materials can be obtained by a variety of methods described in standard chemistry textbooks (for instance in J. March, Advanced Organic Chemistry, 4th Edition, Wiley Interscience, 1992), or in specialized monographs, for example, S.R. Sandler & W. Karo, Organic functional group preparations, Vol. 3, Academic Press.
- reaction of aldehydes or ketones with hydroxylamine or its salt in polar solvents like DMA, aqueous DMA, ethanol or aqueous ethanol is, for example, the reaction of aldehydes or ketones with hydroxylamine or its salt in polar solvents like DMA, aqueous DMA, ethanol or aqueous ethanol.
- a base such as sodium acetate or pyridine is added to control the pH of the reaction mixture. It is well known that the rate of the reaction is pH-dependent, and the base can be added at the beginning or continuously during the reaction.
- Basic solvents such as pyridine can also be used as base and/or solvent or cosolvent.
- the reaction temperature is generally from room temperature to the reflux- ing temperature of the mixture, usually about 20-120°C.
- ketone intermediates are for example prepared by the methods described in the literature, for example in standard chemistry textbooks (for instance in J. March, Advanced Organic Chemistry, 4th Edition, Wiley Interscience, 1992). In addition, successive Friedel-Crafts reaction is effective for synthesis of the intermediates. Such reactions are well known to those skilled in the art.
- oximes Another convenient synthesis of oximes is the nitrosation of "active" methylene groups with nitrous acid or an alkyl nitrite.
- alkaline conditions as described for example in Organic Syntheses coll. Vol. VI (J. Wiley & Sons, New York, 1988), pp 199 and 840, and acidic conditions, as described, for example, in Organic Synthesis coll. vol V, pp 32 and 373, coll. vol. Ill, pp 191 and 513, coll. vol. II, pp. 202, 204 and 363, are suitable for the preparation of the oximes used as starting materials in the invention.
- Nitrous acid is usually generated from sodium nitrite.
- the alkyl nitrite can be for example methyl nitrite, ethyl nitrite, isopropyl nitrite, butyl nitrite, or isoamyl nitrite.
- Subject of the invention also is a process for the preparation of a compound of the formula I or II as defined above by reacting the corresponding oxime compound of the formula (1A) or (IIA)
- Hal is a halogen, in particular CI, and R 4 is as defined above, in the presence of a base or a mixture of bases;
- X, M, An and R 2 are as defined above.
- Ri is CrC 2 oalkyl which is unsubstituted or substituted by one or more halogen, OR 3 , SR 4 , NR 5 R 6 , (CO)OR 3 , C 3 -C 8 cycloalkyl or C 3 -C 8 cycloalkyl which is interrupted by one or more O;
- R is C 2 -C 2 oalkyl interrupted by one or more O, which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more OH, 0(CO)Ri a or (CO)OR 3 ;
- R is C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl; or R is C 6 -C 2 oaryl or C 3 -C 2 oheteroaryl, each of which is unsubstituted or substituted by one or more halogen or CrC 20 alkyl;
- R is CrC 2 oalkoxy, C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy;
- R-ia is hydrogen, CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 2 -Ci 2 alkenyl, C 3 -C 20 cycloalkyl, C 6 -C 20 aryl or C 3 -C 20 heteroaryl, which C 6 -C 20 aryl or C 3 -C 20 heteroaryl is unsubstituted or substituted by one or more halogen, CrC 20 alkyl, OR 3a , SR 4a , NR 5a R6a, COOR 3a , (CO)-(Ci-C 8 alkyl) or benzoyl;
- R 1a is C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy, which C 6 -C 20 aryloxy or C 3 -
- R 2 is hydrogen, CrC 20 alkyl which is unsubstituted or substituted by one or more substituents halogen, OR 3 , SR 4 , NR 5 R 6 , (CO)OR 3 , 0 r C 3 -
- R 2 is C 2 -C 20 alkyl interrupted by one or more O, which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl, OH, 0(CO)Ri a or (CO)OR 3 ; or R 2 is C 2 -Ci 2 alkenyl, C 3 -C 20 cycloalkyl or C 6 -C 20 aryl, which C 6 -C 20 aryl or C 3 - C 20 heteroaryl is unsubstituted or substituted by one or more halogen, N0 2 , OR 3 , SR 4 , COOR 3 , (CO)-R 1a or ;
- R 2a is hydrogen, (CO)Ri a , (CO)OR 3a , CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, OR 3a , SR 4a or C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O;
- R 3 is hydrogen, (CO)Ri a , CrC 20 alkyl which is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O;
- R 3 is C 2 -C 20 alkyl interrupted by one or more O, which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl, OH or (CO)OR 3a ;
- R 3 is C 2 -Ci 2 alkenyl, C 3 -C 20 cycloalkyl or C 6 -C 20 aryl, which C 6 -C 20 aryl is unsubstituted or substituted by one or more halogen or CrC 20 alkyl;
- R 3a is C C 20 alkyl
- R 4 is hydrogen, CrC 20 alkyl which is unsubstituted or substituted by one or more OR 3a , (CO)OR 3a , C 3 -C 8 cycloalkyl or C 6 -C 20 aryl;
- R 4 is C 2 -C 20 alkyl interrupted by one or more O, which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more OH or (CO)OR 3a ;
- R 4 is C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl; or R 4 is C 6 -C 2 oaryl which is unsubstituted or substituted by one or more halogen or C 2 - C 2 oalkyl which is uninterrupted or interrupted by one or more O;
- R 4a is C C 20 alkyl
- R 5 and R 6 independently of each other are hydrogen, CrC 20 alkyl which is unsubstitut- ed or substituted by one or more halogen, OR 3a , SR 4a , (CO)OR 3a , C 3 -C 8 cycloalkyl or C 6 -C 20 aryl;
- R 5 and R 6 independently of each other are C 2 -C 20 alkyl interrupted by one or more O, which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by OH or SH;
- R 5 and R 6 independently of each other are C 2 -Ci 2 alkenyl, C 3 -C 20 cycloalkyl or C 6 - C 20 aryl;
- R 5 and R 6 together with the N-atom to which they are attached form a 5- or 6- membered saturated or unsaturated ring which is uninterrupted or interrupted by O, S or NR 5a ;
- R 5a and R 6a independently of each other are hydrogen or CrC 20 alkyl
- R 7 , R 8 , R9, R1 0 and Rn independently of each other are hydrogen, CrC 20 alkyl, OR 3 , SR 4 , NR 5 R 6 , COOR 3 , (CO)R 1a ;
- R 7 , R 8 , Rg, R 10 and Rn independently of each other are CrC 20 alkyl substituted by one or more halogen, OR 3 , SR 4 , NR 5 R 6 , (CO)OR 3 , C 6 -C 20 aryl or C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O;
- R 7 , R 8 , R 9 , R 10 and Rn independently of each other are C 2 -C 20 alkyl interrupted by one or more O;
- R 8 and Rg, Rg and R 10 , or R 10 and Rn are I I I I ;
- R12, Ri 3 , Ri 4 and R 5 independently of each other are hydrogen or CrC 20 alkyl
- M is CrC 20 alkylene, C 2 -C 20 alkylene interrupted by one or more O or S, C 2 - Ci 2 alkenylene, C 3 -C 20 cycloalkylene or C 6 -C 20 arylene;
- Y is a direct bond, O, S, NR 5 or CO;
- ⁇ ! is O, S, CO or CR 16 (Ri 7 );
- Z 2 is a direct bond, O, S or N R 5 ;
- Q is CO or a direct bond.
- A is O or S
- Ri is C C 20 alkyl
- R 1a is C 6 -C 20 aryl
- R 2 is CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, OR 3 , SR 4 , (CO)OR 3 or C 3 -C 8 cycloalkyl which is uninterrupted or is interrupted by one or more O;
- R 7 , R 8 , R9, R1 0 and Rn independently of each other are hydrogen, OR 3 , CrC 20 alkyl,
- Z 2 is O or S.
- A is O, S or NR 5 ;
- Ri is C C 20 alkyl, C 6 -C 2 oaryl or C C 2 oalkoxy;
- R 1a is C C 2 oalkyl or C 6 -C 2 oaryl
- R 2 is CrC 20 alkyl which is unsubstituted or substituted by halogen, SR 4 , NR 5 R 6 , (CO)OR 3 or C 3 -C 8 cycloalkyl;
- R 2 is C 6 -C 20 aryl which is unsubstituted or substituted by CrC 20 alkyl;
- R 3 is CrC 20 alkyl or R 3 together with one of the carbon atoms of R 2 forms a 5- or 6- membered, preferably 6-membered, saturated ring;
- R 4 is C 6 -C 20 aryl
- R 5 and R 6 independently of each other are 0(CO)Ri a , (CO)Ri a or CrC 20 alkyl;
- R 7 , R 8 , R9, R1 0 and Rn independently of each other are hydrogen, CrC 20 alkyl, halogen, N0 2 , OR 3 , (CO)Ri a or C 6 -C 20 aryl;
- R 8 and R 9 are I I I I ;
- R12, Ri 3 , Ri 4 and R 5 are hydrogen or C C 4 alkyl, preferably hydrogen;
- R 6 and R 7 are hydrogen
- M is C 2 -C 20 alkylene interrupted by S
- Y is a direct bond
- Z-i is O, S or CR 16 (Ri 7 ); and Z 2 is O or S.
- A is for example O, S or NR 5 ; or is for example O, S or CRi 6 i7; or is for example O or S; or is for example O or NR 5 ; or is for example O, S or CRi 6 Ri7; or is for example O or CRi 6 Ri7-
- A is O.
- C 6 -C 2 oaryl for example C 6 -C 2 oaryl
- C 3 -C 2 ohete A is for example C 6 -C 20 aryl, C 6 -C 20 aroyl
- Substituted An are for example substituted by one or more substituents selected from the group consisting of halogen, COOR 3 , (CO)R 1a , _ 0 R 3 , SR 4 , NR 5 R 6 , CrC 20 alkyl, C 2 -C 20 alkyl which is interrupted by one or more O, C 2 -Ci 2 alkenyl, C 3 -C 2 ocycloalkyl, phenyl, naphthyl, benzoyl and naphthoyl;
- C 20 alkyl C 2 -C 20 alkyl which is interrupted by one or more O, C 3 -C 20 cycloalkyl, phenyl and naphthyl.
- Ar 2 for example is phenylene, naphthylene,
- Ar 2 for example is phen lene, naphthylene, phenylenecarbonyl, naphthylenecarbon-
- M is for example CrC 2 oalkylene which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3 , SR 4 , NR 5 R 6 , (CO)OR 3 , (CO)NR 5 R 6 , C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O and C 6 -C 2 oaryl; or M is C 2 -C 2 oalkylene interrupted by one or more O or S, C 2 - Ci 2 alkenylene, C 3 -C 20 cycloalkylene or C 6 -C 20 arylene.
- M is for example CrC 20 alkylene, C 2 -C 20 alkylene interrupted by one or more O or S, C 2 -Ci 2 alkenylene, C 3 -C 20 cycloalkylene or C 6 -C 20 arylene.
- M is CrC 20 alkylene or C 2 -C 20 alkylene interrupted by one or more O or S, in particular by S
- M in particular is C 2 -C 20 alkylene interrupted by one or more O or S, in particular by S.
- Y is for example a direct bond, O, S or NR 5 ; or is for example direct bond, O, S, or CO; or is for example direct bond, O, NR 5 or CO; or is for example direct bond, O or CO; or is for example O, S, NR 5 or CO; or is for example O, S or CO; or is for example O or CO.
- Zi is for example O, CO or CRi 6 (Ri7); or is for example O, S or CRi 6 (Ri7); or is for example O, S or CO; or is for example S, CO or CRi 6 (Ri7); or is for example O or S.
- Z 2 is for example a direct bond, O or S; or is for example O, S or NR 5 ; or is for example O or S; or is for example a direct bond or S; or is for example S or NR 5 .
- Z 2 is S.
- Q is for example CO or a direct bond, preferably a direct bond.
- Ri is for example hydrogen, CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3 , SR 4 , NR 5 R 6 , CN, C 3 -C 8 cycloalkyl and C 6 -C 20 aryl; or R ⁇ is C 2 -C 20 alkyl interrupted by one or more O, or is C 2 -Ci 2 alkenyl, C 3 -C 20 cycloalkyl, C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C C 20 alkoxy, C 2 - C 20 alkoxy, which is interrupted by one or more O; or R ⁇ is C 6 -C 20 aryloxy or C 3 - C 20 heteroaryloxy.
- Ri is for example CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, CN, C 3 -C 8 cycloalkyl or C 6 -C 20 aryl; or R ⁇ is C 2 -C 20 alkyl interrupted by one or more O, or is C 2 -Ci 2 alkenyl, C 3 -C 20 cycloalkyl, C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C C 20 alkoxy, C 2 -C 20 alkoxy, which is interrupted by one or more O; or R ⁇ is C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy.
- Ri is for example CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, CN or C 6 -C 20 aryl; or R ⁇ is C 2 -C 20 alkyl interrupted by one or more O, or is C 3 - C 20 cycloalkyl, C 6 -C 20 aryl, C 3 -C 20 heteroaryl, CrC 20 alkoxy, C 2 -C 20 alkoxy, which is interrupted by one or more O; or R ⁇ is C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy.
- Ri is for example CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, CN or C 6 -C 2 oaryl; or is C 2 -C 2 oalkyl interrupted by one or more O, or is C 3 - C 20 cycloalkyl, CrC 20 alkoxy, C 2 -C 20 alkoxy, which is interrupted by one or more O.
- Ri is for example CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, CN or phenyl; or is C 2 -C 20 alkyl interrupted by one or more O, or is C 3 - C 20 cycloalkyl, CrC 20 alkoxy, C 2 -C 20 alkoxy, which is interrupted by one or more O; or is C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy.
- Ri is for example CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, CN or C 6 -C 20 aryl; or is C 2 -C 20 alkyl interrupted by one or more O, or is C 3 - C 20 cycloalkyl, C 6 -C 20 aryl, C 3 -C 20 heteroaryl.
- Ri is for example CrC 6 alkyl which is unsubstituted or substituted by one or more halogen or phenyl, which is unsubstituted or substituted by one or more CrC 6 alkyl, halogen, OR 3 , SR 4 and/or N R 5 R 6 ; or is CrC 6 alkoxy or benzyloxy.
- R is for example C Ci 2 alkyl, phenyl or CrC 8 alkoxy.
- R is C Ci 2 alkyl.
- R-ia for example is hydrogen, CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 2 - Ci 2 alkenyl, C 3 -C 20 cycloalkyl, C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C C 20 alkoxy, C 2 -C 20 alkoxy interrupted by one or more O, C 6 -C 20 aryloxy or C 3 -C 20 heteroaryloxy, which C 6 - C 20 aryloxy or C 3 -C 20 heteroaryloxy is unsubstituted or substituted by one or more halo- gen, CrC 20 alkyl, C C 4 haloalkyl, phenyl, CrC 20 alkylphenyl, CrC 8 alkoxyphenyl, CN,
- R-ia for example is hydrogen, CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 2 -Ci 2 alkenyl, C 3 -C 20 cycloalkyl, C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C C 20 alkoxy, C 2 -
- R-ia for example is hydrogen, CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O,
- R-ia for example is CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 2 - Ci 2 alkenyl or C 3 -C 20 cycloalkyl.
- R a for example is CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, or C 6 -
- R-ia preferably is C 6 -C 20 aryl.
- R 2 for example is hydrogen, (CO)Ri a , (CO)OR 3 or CONR 5 R 6 ;
- R 2 is CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3 , SR 4 , NR 5 R 6 , (CO)OR 3 , R 2A O
- C 6 -C 2 oaryl, C 3 -C 2 oheteroaryl, C 6 -C 2 oaroyl and C 3 -C 2 oheteroarylcarbonyl which C 6 - C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl or C 3 -C 20 heteroarylcarbonyl is unsubstituted or substituted by one or more halogen, C C 4 haloalkyl, OR 3 , SR 4 or NR 5 R 6 ;
- R 2 is C 2 -C 20 alkyl interrupted by one or more O, which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl, OH, SH or C 6 -C 20 aryl;
- R 2 for example is hydrogen, (CO)Ri a , (CO)OR 3 or CONR 5 R 6 ;
- R 2 is CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3 , SR 4 , NR 5 R 6 , (CO)OR 3 ,
- R 2 is C 2 -C 20 alkyl interrupted by one or more O, which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl;
- R 2 is C 2 -Ci 2 alkenyl, C 3 -C 20 cycloalkyl, C 6 -C 20 aryl or C 3 -C 20 heteroaryl, which C 6 - C 20 aryl or C 3 -C 20 heteroaryl is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, CN, N0 2 , OR 3 , SR 4 , NR 5 R 6 , COOR 3 , (CO)R 1a , and C C 20 alkyl.
- R 2 for example is CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3 , SR 4 , NR 5 R 6 , (CO)OR 3 , (CO)NR 5 R 6 , , C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O, C 6 -C 20 aryl, C 3 -C 20 heteroaryl, C 6 -C 20 aroyl and C 3 - C 20 heteroarylcarbonyl ;
- R 2 is C 2 -C 20 alkyl interrupted by one or more O, C 2 -Ci 2 alkenyl, C 3 -C 20 cycloalkyl or C 6 - C 20 aryl.
- R 2 for example is CrC 20 alkyl which is unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, OR 3 , SR 4 , NR 5 R 6 , (CO)OR 3 , (CO)NR 5 R 6 , , C 3 -C 8 cycloalkyl, or R 2 is C 2 -C 2 oalkyl interrupted by one or more O, C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl.
- R 2 for example is CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 2 - Ci 2 alkenyl or C 3 -C 20 cycloalkyl.
- R 2 for example is CrC 20 alkyl or C 2 -C 20 alkyl interrupted by one or more O.
- R 2 is CrC 20 alkyl.
- R 2a is for example hydrogen, (CO)Ri a , (CO)OR 3a , CONR 5a R6a, CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, OR 3a , SR 4a , NR 5a R 6a , (CO)OR 3a , (CO)NR 5a R 6a or C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O; or R 2a is C 2 -C 20 alkyl interrupted by one or more O; or R 2a is C 2 -Ci 2 alkenyl, C 3 - C 20 cycloalkyl, C 6 -C 20 aryl or C 3 -C 20 heteroaryl, which C 6 -C 20 aryl or C 3 -C 20 heteroaryl is unsubstituted or substituted by one or more halogen, OR 3a , SR 4a , NR 5a R 6a , COOR 3a ,
- R 2a is for example CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, OR 3a , SR 4a , N R5aR6a, (CO)OR 3a , (CO)NRs a R6 a or C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O; or R 2a is C 2 -C 20 alkyl interrupted by one or more O; or R 2a is C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl.
- R 2a is for example CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, OR 3a , SR 4a , NR 5a R 6a , (CO)OR 3a or C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O; or R 2a is C 2 -C 20 alkyl interrupted by one or more O; or R 2a is C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl.
- R 2a is for example CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 2 - Ci 2 alkenyl or C 3 -C 20 cycloalkyl.
- R 2a is CrC 20 alkyl.
- R 3 is for example hydrogen, (CO)Ri a , (CO)OR 3a , CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O; or R 3 is C 2 -C 20 alkyl interrupted by one or more O, which inter- rupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more C 3 -C 8 cycloalkyl, OH or (CO)OR 3a ; or R 3 is C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl; or R 3 is C 6 -C 20 aryl which is unsubstituted or substituted by one or more halogen or CrC 20 alkyl.
- R 3 is for example hydrogen, (CO)Ri a , (CO)OR 3a , CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl;
- R 3 is C 6 -C 20 aryl which is unsubstituted or substituted by one or more halogen or C C 20 alkyl.
- R 3 is for example hydrogen, CrC 20 alkyl, C 3 -C 20 cycloalkyl or C 6 -C 20 aryl.
- R 3a for example is hydrogen, CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 2 - Ci 2 alkenyl, C 3 -C 8 cycloalkyl, C 6 -C 20 aryl, C 3 -C 20 heteroaryl, CrC 20 alkanoyl or C 3 - Ci 2 alkenoyl.
- R 3a for example is hydrogen, CrC 20 alkyl, C 3 -C 8 cycloalkyl, C 6 -C 2 oaryl, CrC 2 oalkanoyl or C 3 -Ci 2 alkenoyl.
- R 3a for example is hydrogen, CrC 20 alkyl, C 3 -C 8 cycloalkyl or CrC 20 alkanoyl .
- R 3a for example is CrC 20 alkyl.
- R 4 for example is hydrogen, CrC 20 alkyl which is unsubstituted or substituted by one or more substituents OR 3a , (CO)OR 3a , C 3 -C 8 cycloalkyl or C 6 -C 20 aryl; or R 4 is C 2 -C 20 alkyl interrupted by one or more O, which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more OH or (CO)OR 3a ; or R 4 is C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl.
- R 4 for example is hydrogen, CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 2 -Ci 2 alkenyl or C 3 -C 20 cycloalkyl.
- R for example is CrC 20 alkyl.
- R a for example is hydrogen, CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 2 - Ci 2 alkenyl, C 6 -C 20 aryl, C 3 -C 20 heteroaryl, CrC 20 alkanoyl or C 3 -Ci 2 alkenoyl.
- R a for example is hydrogen, CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 2 -Ci 2 alkenyl, CrC 20 alkanoyl or C 3 -Ci 2 alkenoyl.
- R 4a for example is hydrogen, Ci-C2oalkyl, C2-C2oalkyl interrupted by one or more O, or Ci-C2oalkanoyl.
- R a for example is hydrogen, CrC 20 alkyl or C 2 -C 20 alkyl interrupted by one or more O.
- R a for example is CrC 20 alkyl.
- R 5 and R 6 independently of each other are hydrogen, CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, OR 3a , SR 4a , (CO)OR 3a , C 3 -C 8 cycloalkyl or C 6 -C 20 aryl; or R 5 and R 6 independently of each other are C 2 -C 20 alkyl interrupted by one or more O, which interrupted C 2 -C 20 alkyl is unsubstituted or substituted by one or more OH or SH; or R 5 and R 6 independently of each other are C 2 -Ci 2 alkenyl, C 3 - C 20 cycloalkyl or C 6 -C 20 aryl; or R 5 and R 6 together with the N-atom to which they are attached form a 5- or 6-membered saturated or unsaturated ring which is uninterrupted or interrupted by O or NR 5a .
- R 5 and R 6 independently of each other are hydrogen, CrC 20 alkyl which is unsubstituted or substituted by one or more halogen, OR 3a , SR 4a , (CO)OR 3a , C 3 -C 8 cycloalkyl or C 6 -C 20 aryl; or R 5 and R 6 independently of each other are C 2 -C 20 alkyl interrupted by one or more O, C 2 -Ci 2 alkenyl, C 3 -C 20 cycloalkyl or C 6 -C 20 aryl; or R 5 and R 6 together with the N-atom to which they are attached form a 5- or 6-membered saturated or unsaturated ring which is uninterrupted or interrupted by O or NR 5a .
- R 5 and R 6 independently of each other are hydrogen, CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, C 3 -C 20 cycloalkyl or C 6 -C 20 aryl;
- R 5 and R 6 together with the N-atom to which they are attached form a 5- or 6- membered saturated or unsaturated ring which is uninterrupted or interrupted by O or NR 5a .
- R 5 and R 6 independently of each other are hydrogen, CrC 20 alkyl, C 2 -C 20 alkyl interrupted by one or more O, in particular CrC 20 alkyl.
- R 5a and R 6a for example independently of each other are hydrogen, CrC 20 alkyl, C 2 - Ci 2 alkenyl, C 3 -C 8 cycloalkyl, C 6 -C 2 oaryl, C C 20 alkoxy;
- R 5a and R 6a together with the N-atom to which they are attached form a 5- or 6- membered saturated or unsaturated ring which is uninterrupted or interrupted by O.
- R 5a and R 6a for example independently of each other are hydrogen, CrC 20 alkyl or C 3 -C 8 cycloalkyl, in particular CrC 20 alkyl.
- R 7 , R 8 , R9, R10 and Rn for example independently of each other are hydrogen, C C 20 alkyl, OR 3 , SR 4 , NR 5 R 6 , COOR 3 , (CO)R 1a ;
- R 7 , R 8 , Rg, R10 and Rn independently of each other are CrC 20 alkyl substituted by one or more halogen, OR 3 , SR 4 , NR 5 R 6 , (CO)OR 3 , C 3 -C 8 cycloalkyl which is uninterrupted or interrupted by one or more O or C 6 -C 20 aroyl;
- R 7 , R 8 , R 9 , R 10 and Rn independently of each other are C 2 -C 20 alkyl interrupted by one or more O;
- R 8 and R 9 , R 9 and R 10 , or R 10 and Rn are I I I I .
- R 7 , R 8 , R 9 , R 0 and Rn for example independently of each other are hydrogen, C C 20 alkyl, OR 3 , SR 4 , NR 5 R 6 , COOR 3 , (CO)Ri a ;
- R 7 , R 8 , R 9 , R 10 and Rn independently of each other are C 6 -C 20 aryl or C 3 -C 20 hetero- aryl, which C 6 -C 20 aryl or C 3 -C 20 heteroaryl is unsubstituted or substituted by one or more halogen, OR 3 , SR 4 , NR 5 R 6 , COOR 3 , (CO)Ri a or — Q _
- ⁇ - ⁇ H R 1a ;
- R 8 and R 9 , R 9 and R 10 , or R 10 and Rn are
- R 7 , R 8 , R 9 , R 0 and Rn for example independently of each other are hydrogen, C C 20 alkyl, OR 3 , COOR 3 , (CO)R 1a , C 6 -C 20 aryl or C 3 -C 20 heteroaryl; or R 8 and R 9 , R 9 and
- R 7 , R 8 , R 9 , R10 and Rn for example independently of each other are hydrogen, Ci
- R12, Ri3, Ri4 and R 5 for example independently of each other are hydrogen or C C 20 alkyl, in particular hydrogen.
- Ri 6 and R 7 for example independently of each other are hydrogen or d-C 2 oalkyl, in particular hydrogen.
- the compounds of the formula I and II are suitable as radical photoinitiators.
- subject of the invention is the use of a compound of the formula I or II as defined above for the photopolymerization of a composition comprising at least one ethylenically unsaturated photopolymerizable compound.
- Another subject of the present invention therefore is a photopolymerizable composition comprising
- composition may comprise additionally to the photoinitiator (b) at least one further photoinitiator (c), and/or other additives (d).
- composition may comprise additionally to the photoinitiator (b) at least one further photoinitiator (c) or other additives (d), or both, at least one further photoinitiator (c) and other additives (d).
- additives (d) for example are one or more components selected from thermal radical initiators, pigments, fillers, dispersants and sensitizers.
- a photopolymerizable composition as described above, comprising 0.05 to 25 % by weight of the photoinitiator (b), or the photoinitiators (b) and (c), based on the composition.
- the unsaturated compounds (a) may include one or more olefinic double bonds. They may be of low (monomeric) or high (oligomeric) molecular mass.
- Component (a) for example comprises a resin obtained by the reaction of a saturated or unsaturated polybasic acid anhydride with a product of the reaction of an epoxy resin and an unsaturated monocarboxylic acid.
- subject of the invention accordingly also is a photopolymerizable composition as de- scribed above, wherein the component (a) is a resin obtained by the reaction of a saturated or unsaturated polybasic acid anhydride with a product of the reaction of an epoxy resin and an unsaturated monocarboxylic acid.
- the component (a) is a resin obtained by the reaction of a saturated or unsaturated polybasic acid anhydride with a product of the reaction of an epoxy resin and an unsaturated monocarboxylic acid.
- Component (a) for example comprises an alkaline developable resin.
- the polymerizable composition according to the invention preferably comprises the component (a) in an amount of from 2 to 98% by weight, more preferably from 5 to 90% by weight, in particular from 10 to 80% by weight, based on the whole solid contents of the polymerizable composition (i.e. the amount of all components without the solvent(s)).
- the alkaline developable resin has free carboxylic groups.
- the acid number is preferably from 50 to 600 mg KOH/g, more preferably 100 to 300 mg KOH/g.
- the acid numbers stated here are the acid number according to DIN EN 12634.
- alkali developable resins are acrylic polymers having carboxylic acid function as a pendant group, such as copolymers obtained by copolymerizing an ethylenic unsaturated carboxylic acid such as (meth)acrylic acid, 2-carboxyethyl (meth)acrylic acid, 2-carboxypropyl (meth)acrylic acid, itaconic acid, citraconic acid, mesaconic acid, fumaric acid, crotonic acid, maleic acid, maleic anhydride, fumaric anhydride, half-ester of maleic acid, cinnamic acid, mono[2-(meth)acryloyloxyethyl] succinate, mono[2- (meth)acryloyloxyethyl] adipate, mono[2-(meth)acryloyloxyethyl] phthalate, mono[2- (meth)acryloyloxyethyl] hexahydrophthalate, mono[2-(meth)acryloyl
- vinyl ethoxyethyl ether vinyl chloroethyl ether, vinyl hydroxyethyl ether, vinyl ethybutyl ether, vinyl hydroxyethoxyethyl ether, vinyl dimethylaminoethyl ether, vinyl diethylami- noethyl ether, vinyl butylaminoethyl ether, [(ethenyloxy)methyl]triethylsilane, vinyl benzyl ether, vinyl tetrahydrofurfuryl ether, vinyl phenyl ether, vinyl tolyl ether, vinyl chloro- phenyl ether, vinyl chloroethyl ether, vinyl dichlorophenyl ether, vinyl naphthyl ether, vinyl anthryl ether, allyl glycidyl ether; crotonates, such as butyl crotonate, hexyl croto- nate, glycerine monocrotonate; it
- copolymers are copolymers of acrylates and methacrylates with acrylic acid or methacrylic acid and with styrene or substituted styrene, phenolic resins, for example novolak, (poly)hydroxystyrene, and copolymers of hydroxystyrene with alkyl acrylates, acrylic acid and/or methacrylic acid.
- copolymers are copolymers of methyl (meth)acrylate/(meth)acrylic acid, copolymers of benzyl (meth)acrylate/(meth)acrylic acid, copolymers of methyl (meth)acrylate/ethyl (meth)acrylate/(meth)acrylic acid, copolymers of benzyl (meth)- acrylate/(meth)acrylic acid/styrene, copolymers of benzyl (meth)acrylate/(meth)acrylic acid/hydroxyethyl (meth)acrylate, copolymers of benzyl (meth)acrylate/(meth)acrylic acid/glycidyl (meth)acrylate, copolymers of benzyl (meth)acrylate/(meth)acrylic acid/3- (methacryloyloxymethyl)oxetane, copolymers of methyl (meth)acrylate/butyl (meth)acrylate/
- Example of com-tapal product is Ripoxy SPC-2000 provided by Showa Denko K.K.
- (meth)acrylate in the context of the present application is meant to refer to the acry- late as well as to the corresponding methacrylate.
- the functional groups in the compound are preferably carboxylic groups.
- other groups which result in alkaline solu- bility, are possible. Examples for such groups are phenolic groups, sulfonic acid groups and anhydride groups.
- bis-phenol A type epoxy compounds When the number of ethylenically unsaturated bonds, which are present in the molecular unit of the resin curable by the activated energy ray, is small, it is possible to use bis-phenol A type epoxy compounds to lower the viscosity of the ink.
- the novolak type epoxy compounds are represented by phenol novolak type epoxy resins and cresol novolak type epoxy resins. Such compounds are typically produced by reacting epichlorohydrin with a novolak resin.
- Typical examples of the aforementioned acid anhydride are dibasic acid anhydrides such as for example maleic anhydride, succinic anhydride, itaconic anhydride, phthalic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, methylhexahy- drophthalic anhydride, endo-methylenetetrahydrophthalic anhydride, methyl-endo- methylenetetrahydrophthalic anhydride, chlorendic anhydride, and methyltetrahydroph- thalic anhydride; aromatic polycarboxylic anhydrides such as for example trimellitic anhydride, pyromellitic anhydride and benzophenone-tetracarboxylic dianhydride: and polycarboxylic anhydride derivatives such as 5-(2,5-dioxotetrahydrofuryl)-3-methyl-3- cyclohexene-1 , 2-dicarboxylic anhydride.
- alkaline developable resins (a) are polymers or oligomers having at least two ethylenically unsaturated groups and at least one carboxyl function within the molecule structure, such as a resin obtained by the reaction of a saturated or unsaturated polybasic acid anhydride with a product of the reaction of an epoxy compound and an unsaturated monocarboxylic acid (for example, EB9696 from UCB Chemicals; KAYARAD TCR1025 from Nippon Kayaku Co. Ltd.; NK OLIGO EA-6340, EA-7440 from Shin-Nakamura Chemical Co., Ltd.).
- a resin obtained by the reaction of a saturated or unsaturated polybasic acid anhydride with a product of the reaction of an epoxy compound and an unsaturated monocarboxylic acid for example, EB9696 from UCB Chemicals; KAYARAD TCR1025 from Nippon Kayaku Co. Ltd.; NK OLIGO EA-6340, EA-7440 from Shin-Nakamur
- binders are described in JP2002-206014A, JP2004-69754A, JP2004-302245A, JP2005-77451A, JP2005-316449A, JP2005-338328A and JP3754065B2.
- alkaline developable resins are the above-mentioned polymers or oligomers having at least one ethylenically unsaturated groups.
- reaction products obtained by adding an epoxy group containing unsaturated compound to a part of the carboxyl groups of a carboxylic acid group containing polymer for ex., ACA200, ACA200M, ACA210P, ACA230AA, ACA250, ACA300, ACA320 from Daicel Co. and Ripoxy SPC-1000 provided by Showa Denko K. K.).
- the abovementioned binder polymers which are resulting from the reaction of an unsaturated carboxylic acid compound with one or more polymerizable compounds, for example, copolymers of (meth)acrylic acid, benzyl (meth)acrylate, styrene and 2-hydroxyethyl (meth)acrylate, copolymers of (meth)acrylic acid, styrene and a-methylstyrene, copolymers of (meth)acrylic acid, N-phenyl- maleimide, styrene and benzyl (meth)acrylate, copolymers of (meth)acrylic acid and styrene, copolymers of (meth)acrylic acid and benzyl (meth)acrylate, copolymers of tetrahydrofurfuryl (meth)acrylate, styrene and (meth)acrylic acid and the like.
- R 50 is hydrogen or methyl group
- M 3 is substituted or unsubstituted alkylene having 1 to 10 carbon atoms.
- compounds having alicyclic epoxy groups are particularly preferred, because these compounds have a high reactivity with carboxyl group- containing resins, accordingly the reaction time can be shortened. These compounds further do not cause gelation in the process of reaction and make it possible to carry out the reaction stably.
- glycidyl acrylate and glycidyl methacrylate are advantageous from the viewpoint of sensitivity and heat resistance because they have a low molecular weight and can give a high conversion of esterification.
- Unsaturated compounds having a hydroxy group such as 2-hydroxyethyl (meth)- acrylate and glycerol mono(meth)acrylate can be used instead of the abovementioned epoxy group containing unsaturated compounds as the reactant for carboxylic acid group containing polymers.
- half esters of anhydride containing polymers for example reaction products of a copolymer of maleic anhydride and one or more other polymerizable compounds with (meth)acrylates having an alcoholic hydroxyl group such as 2- hydroxyethyl (meth)acrylate or having an epoxy group for example such as the compounds described in the formula (V-1) - (V-15).
- Reaction products of polymers having alcoholic hydroxyl groups such as copolymers of 2-hydroxyethyl (meth)acrylate, (meth)acrylic acid, benzyl (meth)acylate and styrene, with (meth)acrylic acid or (meth)acryl chloride can also be used.
- reaction products of polyester with terminal unsaturated groups which is obtained from the reaction of a dibasic acid anhydride and a compound having at least two epoxy groups followed by further reaction with an unsaturated compound, with a polybasic acid anhydride.
- polyimide resin having ethylenically unsaturated groups and at least one carboxyl function.
- the polyimide binder resin in the present invention can be a polyimide precursor, for example, a poly(amic acid).
- alkaline developable resins are:
- a content of the binder resin may be 2-98 %, preferably 5-90 % and es- pecially 10-80 % by weight based on a total weight of the solid contents in the radically polymerizable composition.
- Component (a) for example comprises an acrylate monomer.
- the acrylate monomer refers to an acrylate monomer or oligomer that contains one or more acryloyl or methacryloyl moieties or combinations thereof.
- Examples of compounds containing a double bond are (meth)acrylic acid, alkyl, hy- droxyalkyl or aminoalkyl (meth)acrylates, for example methyl, ethyl, n-butyl, / ' -butyl, t- butyl, n-propyl, / ' -propyl, n-hexyl, cyclohexyl, 2-ethylhexyl, isobornyl, benzyl, 2- hydroxyethyl, 2-hydroxypropyl, methoxyethyl, ethoxyethyl, glycerol, phenoxyethyl, methoxydiethylene glycol, ethoxydiethylene glycol, polyethylene glycol, polypropylene glycol, glycidyl, N, N-dimethylaminoethyl, and N, N-diethylaminoethyl (meth)acrylates.
- (meth)acrylonitrile (meth)acrylamide, N-substituted (meth)- acrylamides such as N, N-dimethyl (meth)acrylamide, N, N-diethyl (meth)acrylamide, N, N-dibutyl (meth)acrylamide, N-methyl (meth)acrylamide, N-ethyl (meth)acrylamide, N- butyl (meth)acrylamide, and N-(meth)acryloylmorpholine, vinyl esters such as vinyl acetate, vinyl ethers such as i-butyl vinyl ether, styrene, alkyl-, hydroxy- and halo- styrenes, N-vinylpyrrolidone, N-vinylcaprolactam, N-vinyl acetoamide, N-vinyl forma- mide, vinyl chloride and vinylidene chloride.
- polyunsaturated compounds of relatively high molecular mass oligo
- esters of an ethylenically unsaturated carboxylic acid with a polyol or polyepoxide are esters of an ethylenically unsaturated carboxylic acid with a polyol or polyepoxide.
- unsaturated carboxylic acids are acrylic acid, methacrylic acid, crotonic acid, itaconic acid, cinnamic acid, and unsaturated fatty acids such as linolenic acid or oleic acid.
- Acrylic and methacrylic acids are preferred.
- Suitable polyols are aromatic, in particular, aliphatic and cycloaliphatic polyols.
- aromatic polyols examples include hydroquinone, 4,4'-dihydroxybiphenyl, 2,2-bis(4-hy- droxyphenyl)ethane, 2,2-bis(4-hydroxyphenyl)propane, 2,2-bis(4-hydroxyphenyl)hexa- fluoropropane, 9,9-bis(4-hydroxyphenyl)fluorene, novolacs and resols.
- aliphatic and cycloaliphatic polyols are alkylenediols having preferably 2 to 12 carbon atoms, such as ethylene glycol, 1 ,2- or 1 ,3-propanediol, 1 ,2-, 1 ,3- or 1 ,4-butanediol, pentanediol, hexanediol, octanediol, dodecanediol, diethylene glycol, triethylene glcyol, polyethylene glycols having molecular weights of preferably from 200 to 1500, 1 ,3- cyclopentanediol, 1 ,2-, 1 ,3- or 1 ,4-cyclohexanediol, 1 ,4-dihydroxymethylcyclohexane, glycerol, triethanolamine, trimethylolethane, trimethylolpropane, pentaerythritol, pent
- polystyrene resin examples include polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrene resin, polystyrenethacrylates.
- esters and urethanes having hydroxyl end groups.
- the polyols may be partially or completely esterified with one unsaturated carboxylic acid or with different unsaturated carboxylic acids, and in partial esters the free hydroxyl groups may be modified, for example etherified or esterified with other carboxylic acids.
- esters based on polyols are trimethylolpropane tri(meth)acrylate, trime- thylolpropane tri(acryloyloxypropyl) ether, trimethylolethane tri(meth)acrylate, ethylene glycol di(meth)acrylate, diethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, tetraethylene glycol di(meth)acrylate, tetramethylene glycol di- (meth)acrylate, neopentyl glycol di(meth)acrylate, pentaerythritol di(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, pentaerythritol tri(meth)acrylate monooxalate, dipentaerythritol di(meth)acrylate, dipentaerythritol tri(
- Mi is -(CH 2 CH 2 0)- or -[CH 2 CH(CH 3 )0]-,
- p is 0 to 6 (total of p: 3 - 24), and q is 0 to 6 (total of q: 2 - 16).
- polyepoxides are those based on the abovementioned polyols and epichlorohydrin.
- Typical examples are bis(4-glycidyloxyphenyl)methane, 2,2-bis(4-gly- cidyloxyphenyl)propane, 2,2-bis(4-glycidyloxyphenyl)hexafluoropropane, 9,9-bis(4-gly- cidyloxyphenyl)fluorene, bis[4-(2-glycidyloxyethoxy)phenyl]methane, 2,2-bis[4-(2-glyci- dyloxyethoxy)phenyl]propane, 2,2-bis[4-(2-glycidyloxyethoxy)phenyl]hexafluoropropane, 9,9-bis[4-(2-glycidyloxyethoxy)phenyl]fluorene, bis[4-(2-glycidyloxypropoxy)
- Typical examples based on polyepoxides are 2,2-bis[4- ⁇ (2-hydroxy-3-acryloxy)- propoxy ⁇ phenyl]propane, 2,2-bis[4- ⁇ (2-hydroxy-3-acryloxy)propoxyethoxy ⁇ phenyl]prop- ane, 9,9-bis[4- ⁇ (2-hydroxy-3-acryloxy)propoxy ⁇ phenyl]fluorene, 9,9-bis[4- ⁇ (2-hydroxy-3- acryloxy)propoxyethoxy ⁇ phenyl]fluorene, glycerol 1 ,3-diglycerolate diacrylate and reac- tion products of epoxy resins based on novolacs with (meth)acrylic acid.
- Preferred multifunctional (meth)acrylate monomers or oligomers include pentaerythritol tetraacrylate, dipentaerythritol pentaacrylate, dipentaerythritol hexaacrylate, di- trimethylolpropane tetraacrylate, pentaerythritol triacrylate, tris(2-hydroxy ethyl) isocy- anurate triacrylate.
- Dipentaerythritol-hexaacrylate DPHA
- Dipentaerythritol-pentaacrylate DPPA
- Examples of commercially available acrylate monomer or oligomers having two acryloyl or methacryloyl moieties are Aronix®M-210, Aronix®M-240, Aronix®M-6200 (TOAGOSEI Co., LDT.) KAYARAD HDDA, KAYARAD HX-220, KAYARAD HX-620, KAYARAD R-526, KAYARAD UX-2201 , KAYARAD MU-2100 (NIPPON KAYAKU Co., LTD.), VISCOAT-260, VISCOAT-355HP (OSAKA ORGANIC CHEMICAL INDUSTRY LTD.).
- Examples of commercially available acrylate monomer or oligomers having three or more acryloyl or methacryloyl moieties are Aronix®M-309, Aronix®M-400, Aronix®M- 1310, Aronix®M-1960, Aronix®M-7100, Aronix®M-8530, Aronix®TO-1450 (TOAGOSEI Co., LDT), KAYARAD TMPTA, KAYARAD DPHA, KAYARAD DPCA-20, KAYARAD MAX-3510 (NIPPON KAYAKU Co., LTD.), VISCOAT-295, VISCOAT-300, VISCOAT- GPT, VISCOAT-3PA, VISCOAT-400 (OSAKA ORGANIC CHEMICAL INDUSTRY LTD.).
- urethane acrylate monomer or oligomers having two or more acryloyl or methacryloyl moieties are NEW FRONTIER R-1150 (DAI-ICHI KOGYO SEIYAKU CO., LTD.) KAYARAD DPHA-40H, KAYARAD UX-5000 (NIPPON KAYAKU Co., LTD.), UN-9000H (Negami Chemical Industrial Co., Ltd.)
- the amount of acrylate present in the radiation curable composition ranges from about 2% to 80% and preferably from about 5% to 70% based on the whole solid contents of the composition, i.e. the amount of all components without the solvent(s).
- the photoinitiator (c) is for example selected from benzophenones, bis-imidazole, aromatic a-hydroxyketones, benzylketals, aromatic a-aminoketones, phenylglyoxalic acid esters, mono-acylphosphinoxides, bis- acylphosphinoxides, tris-acylphosphinoxides, oximesters derived from aromatic ke- tones and/or oxime esters of the carbazol type.
- photoinitiators are camphor quinone; benzophenone, benzophenone derivatives, such as 2,4,6-trimethylbenzophenone, 2-methylbenzophenone, 3-methyl- benzophenone, 4-methylbenzophenone, 2-methoxycarbonylbenzophenone, 4,4'-bis- (chloromethyl)benzophenone, 4-chlorobenzophenone, 4-phenylbenzophenone, 3,3'- dimethyl-4-methoxy-benzophenone, [4-(4-methylphenylthio)phenyl]-phenylmethanone, methyl-2-benzoylbenzoate, 3-methyl-4'-phenylbenzophenone, 2,4,6-trimethyl-4'-phen- ylbenzophenone, 4,4'-bis(dimethylamino)benzophenone, 4,4'-bis(diethylamino)ben- zophenone, thioxanthones, thioxanthone derivatives, poly(s
- phenylglyoxalic esters and derivatives thereof e.g. methyl a-oxo ben- zeneacetate, oxo-phenyl-acetic acid 2-(2-hydroxy-ethoxy)-ethyl ester, dimeric phenylglyoxalic esters, e.g. oxo-phenyl-acetic acid 1-methyl-2-[2-(2-oxo-2-phenyl-acetoxy)- propoxy]-ethyl ester (Irgacure® 754); ketosulfones, e.g. ESACURE KIP 1001 M; oximeesters, e.g.
- benzophenone tetracarboxylic peresters as described for example in EP 126541 , monoacyl phosphine oxides, e.g. (2,4,6- trimethylbenzoyl)diphenylphosphine oxide (Irgacure® TPO), ethyl (2,4,6 trimethylben- zoyl phenyl) phosphinic acid ester; bisacylphosphine oxides, e.g.
- bis(2,6-dimethoxy- benzoyl)-(2,4,4-trimethyl-pentyl)phosphine oxide bis(2,4,6-trimethylbenzoyl)- phenylphosphine oxide (Irgacure® 819), bis(2,4,6-trimethylbenzoyl)-2,4-dipent- oxyphenylphosphine oxide, trisacylphosphine oxides, halomethyltriazines, e.g.
- ortho-chlorohexaphenyl-bisimidazole combined with 2-mer- captobenzothiazole, ferrocenium compounds, or titanocenes, e.g. bis(cyclo- pentadienyl)-bis(2,6-difluoro-3-pyrryl-phenyl)titanium (lrgacure®784).
- titanocenes e.g. bis(cyclo- pentadienyl)-bis(2,6-difluoro-3-pyrryl-phenyl)titanium (lrgacure®784).
- borate compounds can be used as coinitiators.
- oligomeric compounds such as for example oligomeric alpha hydroxyl ketones, e.g.
- the composition according to the invention may comprise as component (d) a colorant.
- a colorant pigments or dyes or mixtures of pigment(s) and dye(s) may be present in the composition.
- the pigments which can be comprised in the composition according to the present invention, including a pigmented color filter resist composition, are preferably processed pigments.
- the red pigment comprises, for example, an anthraquinone type pigment alone, a diketopyrolopyrole type pigment alone, a mixture of them or a mixture consisting of at least one of them and a disazo type yellow pigment or an isoindoline type yellow pigment, in particular C. I. Pigment Red 177 alone, C. I. Pigment Red 254 alone, a mixture of C. I. Pigment Red 177 and C. I. Pigment Red 254 or a mixture consisting of at least one member of C. I. Pigment Red 177, C. I. Pigment Red 242 and C. I. Pigment Red 254, and C. I. Pigment Yellow 83 or C. I. Pigment Yellow 139 ("C.I.” refers to the Color Index, known to the person skilled in the art and publicly available).
- pigments are C.I. Pigment Red 9, 97, 105, 122, 123, 144, 149, 168, 176, 179, 180, 185, 202, 207, 209, 214, 222, 244, 255, 264, 272 and C.I. Pigment Yellow 12, 13, 14, 17, 20, 24, 31 , 53, 55, 93, 95, 109, 110, 128, 129, 138, 139, 150, 153, 154, 155, 166, 168, 185, 199, 213 and C.I. Pigment Orange 43 and 71.
- Examples of the dyes for red color are C. I. Solvent Red 25, 27, 30, 35, 49, 83, 89, 100, 122, 138, 149, 150, 160, 179, 218, 230, C. I. Direct Red 20, 37, 39, 44, and C. I. Acid Red 6, 8, 9, 13, 14, 18, 26, 27, 51 , 52, 87, 88, 89, 92, 94, 97, 111 , 114, 115, 134, 145, 151 , 154, 180, 183, 184, 186, 198, C. I. Basic Red 12, 13, C. I. Disperse Red 5, 7, 13, 17 and 58. The Red dyes can be used in combination with yellow and/or orange dyes.
- the green pigment comprises for instance a halogenated phthalocyanine type pigment alone or its mixture with a bisazo type yellow pigment, an quinophthalone type yellow pigment or a metal complex, in particular C. I. Pigment Green 7 alone, C. I. Pigment Green 36 alone, C.I. Pigment 58 alone, or a mixture consisting of at least one member of C. I. Pigment Green 7, C. I. Pigment Green 36, C.I. Pigment Green 58 and C. I. Pigment Yellow 83, C. I. Pigment Yellow 138 or C. I. Pigment Yellow 150.
- Other suitable green pigments are C.I. Pigment Green 15, 25 and 37. Examples for suitable green dyes are C. I. Acid Green 3, 9, 16, C. I. Basic Green 1 and 4.
- blue pigments examples include phthalocyanine type pigments, used either alone or in combination with an dioxazine type violet pigment, for instance, C. I. Pigment Blue 15:6 alone, a combination of C. I. Pigment Blue 15:6 and C. I. Pigment Violet 23. Further examples for blue pigments are such of C. I. Pigment Blue 15:3, 15:4, 16, 22, 28 and 60. Other suitable pigments are C. I. Pigment Violet 14, 19, 23, 29, 32, 37, 177 and C. I. Orange 73.
- the blue dye comprises, for example, a methane type dye, an anthraquinone type dye, an azo type dye, a metal complex azo type dye, a triaryl methane type dye or a phthalocyanine type dye.
- blue dyes examples include C. I. Solvent Blue 11 , 25, 37, 45,49, 68, 78, 94, C. I. Direct Blue 25, 86, 90, 108, C. I. Acid Blue 1 , 3, 7, 9, 15, 83, 90, 103, 104, 158, 161 , 249, C. I. Basic Blue 1 , 3, 7, 9, 25, 105, and C. I. Disperse Blue 198 and C.I. Mordant Blue 1.
- the pigment of the photopolymeric composition for black matrix preferably comprises at least one member selected from the group consisting of carbon black, titanium black, iron oxide, lactone, lactam and perylene.
- Preferred example is carbon black.
- a mixture of other pigments which, in total, give the black appearance can also be used.
- C. I. Pigment Black 1 , 7, 31 , 32 and Irgaphor® black S0100(BASF SE) can be used alone or in combination.
- Other examples of the dyes used for color filter are C. I. Solvent Yellow 2, 5, 14, 15, 16, 19, 21 , 33, 56, 62, 77, 83, 93, 162, 104, 105, 114, 129, 130, 162, C. I.
- color filters complementary colors, yellow, magenta, cyan and optionally green, are used instead of red, green and blue.
- yellow for this type of color filters, the abovementioned yellow pigments and dyes can be employed.
- the colorants suitable for magenta color are C. I. Pigment Red 122, 144, 146, 169, 177, C. I. Pigment Violet 19 and 23.
- cyan color are aluminum phthalocyanine pigments, titanium phthalocyanine pigments, cobalt phthalo- cyanine pigments, and tin phthalocyanine pigments.
- the pigments in the color filter resist composition have preferably a mean particle diameter smaller than the wavelength of visible light (400 nm to 700 nm). Particularly preferred is a mean pigment diameter of ⁇ 100 nm.
- the concentration of the pigment in the total solid component is for example in the range of 5% to 80% by weight, in particular in the range of 20% to 65 % by weight.
- the concentration of the dye in the total solid component is for example in the range of 0.5% to 95% by weight, in particular in the range of 0.5% to 70% by weight.
- the pigments may be stabilized in the photosensitive composition by pre- treatment of the pigments with a dispersant to improve the dispersion stability of the pigment in the liquid formulation. Suitable additives are described below.
- Additives (d) are optionally present in the composition of the invention, such as dispersing agents, surfactant, adhesion promoters, photosensitizer and the like.
- the surface treatment reagents are, for example, surfactants, polymeric dispersants, general texture improving agents, pigment derivatives and mixtures thereof. It is especially preferred when the colorant composition according to the invention comprises at least one polymeric dispersant and/or at least pigment derivative.
- Suitable surfactants include anionic surfactants such as alkylbenzene- or alkylnaphtha- lene-sulfonates, alkylsulfosuccinates or naphthalene formaldehyde sulfonates; cationic surfactants including, for example, quaternary salts such as benzyl tributyl ammonium chloride; or nonionic or amphoteric surfactants such as polyoxyethylene surfactants and alkyl- or amidopropyl betaines, respectively.
- anionic surfactants such as alkylbenzene- or alkylnaphtha- lene-sulfonates, alkylsulfosuccinates or naphthalene formaldehyde sulfonates
- cationic surfactants including, for example, quaternary salts such as benzyl tributyl ammonium chloride
- nonionic or amphoteric surfactants
- Illustrative examples of the surfactant include polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether, polyoxyethylene stearyl ether and polyoxyethylene oleyl ether; polyoxyethylene alkylphenyl ethers such as polyoxyethylene octylphenyl ether and polyoxyethylene nonylphenyl ether; polyethylene glycol diesters such as polyeth- ylene glycol dilaurate and polyethylene glycol distearate; sorbitan fatty acid esters; fatty acid modified polyesters; tertiary amine modified polyurethanes; polyethyleneimines; those available under the trade names of KP (a product of Shin-Etsu Chemical Co., Ltd), Polyflow (a product of KYOEISHA CHEMICAL Co., Ltd), F-Top (a product of Tochem Products Co., Ltd), MEGAFAC (a product of Dainippon Ink & Chemicals, Inc.), Fluorad (a product of Sumitomo
- surfactants may be used alone or in admixture of two or more.
- the surfactant is generally used in an amount of 50 parts or less by weight, preferably 0 to 30 parts by weight, based on 100 parts by weight of the colorant composition.
- Polymeric dispersants include high molecular weight polymers with pigment affinic groups. Examples are: statistical co-polymers comprised from, for instance, styrene derivatives, (meth)acrylates and (meth)acrylamides, and such statistical co-polymers modified by post modification; block co-polymers and/or comb polymers comprised from, for instance, styrene derivatives, (meth)acrylates and (meth)acrylamides, and such block co-polymers and/or comb polymers modified by post modification; polyeth- yienimines, which for instance is crafted with polyesters; polyamines, which for instance is crafted with polyesters; and many kinds of (modified) polyurethanes.
- statistical co-polymers comprised from, for instance, styrene derivatives, (meth)acrylates and (meth)acrylamides, and such statistical co-polymers modified by post modification
- block co-polymers and/or comb polymers comprised from
- Polymeric dispersants may also be employed. Suitable polymeric dispersants are, for example, BYK's DISPERBYK® 101 , 115, 130, 140, 160, 161 , 162, 163, 164, 166, 168, 169, 170, 171 , 180, 182, 2000, 2001 , 2009, 2020, 2025, 2050, 2090, 2091 , 2095, 2096, 2150, BASF's EFKA® 4008, 4009, 4010, 4015, 4046, 4047, 4050, 4055, 4060, 4080, 4300, 4310, 4330, 4340, 4400, 4401 , 4402, 4403, 4406, 4500, 4510, 4520, 4530, 4540, 4550, 4560, Ajinomoto Fine Techno's PB®711 , 821 , 822, 823, 824, 827, Lubrizol's SOLSPERSE® 1320, 13940, 17000, 20000, 21000, 24000
- Suitable texture improving agents are, for example, fatty acids such as stearic acid or behenic acid, and fatty amines such as laurylamine and stearylamine.
- fatty alcohols or ethoxylated fatty alcohols, polyols such as aliphatic 1 ,2-diols or epoxidized soy bean oil, waxes, resin acids and resin acid salts may be used for this purpose.
- Suitable pigment derivatives are, for example, copper phthalocyanine derivatives such as BASF's EFKA® 6745, Lubrizol's SOLSPERSE® 5000, 12000, BYK's SYNERGIST 2100 and azo derivatives such as EFKA® 6750, SOLSPERSE® 22000 and SYNERGIST 2105.
- copper phthalocyanine derivatives such as BASF's EFKA® 6745, Lubrizol's SOLSPERSE® 5000, 12000, BYK's SYNERGIST 2100 and azo derivatives such as EFKA® 6750, SOLSPERSE® 22000 and SYNERGIST 2105.
- compositions of the present invention which are used as resist formulations, in particular in color filter formulations.
- Subject of the invention also is a photopolymerizable composition as described above as further additive comprising a dispersant or a mixture of dispersants as well as a pho- topolymerizable composition as described above as further additive comprising a pigment or a mixture of pigments or a dye or a mixture of dyes or a mixture of one or more pigments with one or more dyes.
- the content of the dispersing agent is preferably from 1 to 80% by mass, more preferably from 5 to 70% by mass, even more preferably from 10 to 60% by mass, based on the mass of the pigment.
- Further suitable additives (d) are for example adhesion improving agents.
- the curable composition of the invention may contain an adhesion improving agent for increasing adhesion to a hard surface, such as of a support.
- the adhesion improving agent may be a silane coupling agent, a titanium coupling agent or the like.
- Photopolymerization can also be accelerated by adding further photosensitizers or coinitiators (as component (d)) which shift or broaden the spectral sensitivity.
- aromatic compounds for example benzophenone and derivatives thereof, thioxanthone and derivatives thereof, anthraquinone and derivatives thereof, coumarin and phenothiazine and derivatives thereof, and also 3-(aroylmeth- ylene)thiazolines, rhodanine, camphorquinone, but also eosine, rhodamine, erythrosine, xanthene, thioxanthene, acridine, e.g. 9-phenylacridine, 1 ,7-bis(9-acridinyl)heptane, 1 ,5-bis(9-acridinyl)pentane, cyanine and merocyanine dyes.
- aromatic compounds for example benzophenone and derivatives thereof, thioxanthone and derivatives thereof, anthraquinone and derivatives thereof, coumarin and phenothiazine and derivatives thereof, and also 3-(aroylmeth
- benzophenone 4-phenyl benzophenone, 4-methoxy benzophenone, 4,4'-dimethoxy benzophenone, 4,4'-dimethyl benzophenone, 4,4'-dichlorobenzophenone 4,4'-bis(di- methylamino)benzophenone, 4,4'-bis(diethylamino)benzophenone, 4,4'-bis(methyl- ethylamino)benzophenone, 4,4'-bis(p-isopropylphenoxy)benzophenone, 4-methyl ben- zophenone, 2,4,6-trimethylbenzophenone, 4-(4-methylthiophenyl)-benzophenone, 3,3'- dimethyl-4-methoxy benzophenone, methyl-2-benzoylbenzoate, 4-(2-hydroxyethylthio)- benzophenone, 4-(4-tolylthio)benzophenone, 1-[4-(4-benzoyl-phenyls
- acetophenone 3-methoxyacetophenone, 4-phenylacetophenone, benzil, 4,4'- bis(dimethylamino)benzil, 2-acetylnaphthalene, 2-naphthaldehyde, dansyl acid derivatives, 9,10-anthraquinone, anthracene, pyrene, aminopyrene, perylene, phenanthrene, phenanthrenequinone, 9-fluorenone, dibenzosuberone, curcumin, xanthone, thiomich- ler's ketone, a-(4-dimethylaminobenzylidene) ketones, e.g.
- N-phenylglycine ethyl 4-dimethylaminobenzoate, butoxyethyl 4-dimethylaminobenzoate, 4-dimethylaminoacetophenone, triethanolamine, methyldiethanolamine, dimethylaminoethanol, 2-(dimethylamino)ethyl benzoate, poly(propylenegylcol)-4-(dimethylamino) benzoate.
- a photosensitizer is for example selected from the group consisting of benzophenone and its derivatives, thioxanthone and its derivatives, anthraquinone and its derivatives, or coumarin and its derivatives.
- amines for example triethanolamine, N-methyldiethanolamine, ethyl-p-dimethylaminobenzoate, 2-(dimethyl- amino)ethyl benzoate, 2-ethylhexyl-p-dimethylaminobenzoate, octyl-para-N,N-dimethy- laminobenzoate, N-(2-hydroxyethyl)-N-methyl-para-toluidine or Michler's ketone.
- the action of the amines can be intensified by the addition of aromatic ketones of the ben- zophenone type.
- amines which can be used as oxygen scavengers are substituted ⁇ , ⁇ -dialkylanilines, as are described in EP339841.
- Other accelerators, coinitiators and autoxidizers are thiols, thioethers, disulfides, phosphonium salts, phos- phine oxides or phosphines, as described, for example, in EP438123, in GB2180358 and in JP KokaiHei 6-68309.
- thermal curing promoter e.g., oxime sulfonates, as are described, for example, in WO2012/101245, hydroxyla- mine esters, as are described, for example, in WO2012/108835, in WO2001090113, in WO03029332 and in WO04081100, peroxides, such as organic peroxides or hydroper- oxides, as are described, for example, in JP2003015288 and in JP10010718, and azo compounds, are described, for example, in JP2003015288.
- thermal curing promoter e.g., oxime sulfonates
- hydroxyla- mine esters as are described, for example, in WO2012/108835
- WO2001090113 in WO03029332 and in WO04081100
- peroxides such as organic peroxides or hydroper- oxides, as are described, for example, in JP2003015288 and in JP10010718
- additive(s) The choice of additive(s) is made depending on the field of application and on properties required for this field.
- the additives described above are customary in the art and accordingly are added in amounts which are usual in the respective application.
- Thermal inhibitors are intended to prevent premature polymerization, examples being hydroquinone, hydroquinone derivatives, p-methoxyphenol, ⁇ - naphthol or sterically hindered phenols, such as 2,6-di-f-butyl-p-cresol.
- copper compounds such as copper naphthenate, stearate or octoate
- phosphorus compounds for example triphenylphosphine, tributylphosphine, triethylphosphine, triphenyl phosphate or tribenzyl phosphate
- quaternary ammonium compounds for example tetrame- thylammonium chloride or trimethylbenzylammonium chloride, or hydroxylamine deriva- tives, for example N-diethylhydroxylamine.
- paraffin or similar wax-like substances which, being of inadequate solubility in the polymer, migrate to the surface in the beginning of polymerization and form a transparent surface layer which prevents the ingress of air. It is also possible to apply an oxygen-impermeable layer.
- UV absorbers for example those of the hydroxyphenylbenzotriazole, hydroxyphenyl-benzophenone, oxalamide or hydroxyphenyl-s-triazine type. These compounds can be used individually or in mixtures, with or without sterically hindered amines (HALS).
- HALS sterically hindered amines
- UV absorbers and light stabilizers examples are UV absorbers and light stabilizers.
- 2-(2'-hydroxyphenyl)benzotriazoles for example 2-(2'-hydroxy-5'-methylphenyl)- benzo-'triazole, 2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)benzotriazole, 2-(5'-tert-butyl-2'- hydroxyphen-yl)benzotriazole, 2-(2'-hydroxy-5'-(1 , 1 ,3,3-tetramethylbutyl)phenyl)benzo- triazole, 2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)-5-chlorobenzotriazole, 2-(3'-tert-butyl-2'- hydroxy-5'-methylphen-yl)-5-chlorobenzotriazole, 2-(3'-sec-butyl-5'-tert-butyl-2'-hydro- xyphenyl)benzotriazole, 2-(2'-hydroxy-4'
- 2-Hydroxybenzophenones for example the 4-hydroxy-, 4-methoxy-, 4-octoxy-, 4- decyloxy, 4-dodecyloxy-, 4-benzyloxy-, 4,2',4'-trihydroxy- and 2'-hydroxy-4,4'-dimethoxy derivative.
- esters of substituted or unsubstituted benzoicacids for example 4-tert-butylphenyl salicylate, phenyl salicylate, octylphenyl salicylate, dibenzoylresorcinol, bis(4-tert- butylbenzoy re-'Sorcinol, benzoylresorcinol, 2,4-di-tert-butylphenyl 3,5-di-tert-butyl-4- hydroxybenzoate, hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate, octadecyl 3,5-di-tert- butyl-4-hydroxybenzoate, and 2-methyl-4,6-di-tert-butylphenyl 3,5-di-tert-butyl-4- hydroxybenzoate.
- Acrylates for example isooctyl or ethyl a-cyano-B,B-diphenyl acrylate, methyl a- carbo-methoxycinnamate, butyl or methyl a-cyano-B-methyl-p-methoxycinnamate, methyl a-carboxymethoxy-p-methoxycinnamate and N-(B-carbomethoxy-B-cyanovinyl)-2- methylindoline.
- Sterically hindered amines for example bis(2,2,6,6-tetramethylpiperidyl) sebacate, bis(2,2,6,6-tetramethylpiperidyl) succinate, bis(1 ,2,2,6,6-pentamethylpiperidyl) sebacate, bis-(1 ,2,2,6,6-pentamethylpiperidyl) n-butyl-3,5-di-tert-butyl-4-hydroxybenzylma- lonate, condensation product of 1-hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid, condensation product of N,N'-bis-(2,2,6,6-tetramethyl-4-piperi- dyl)hexa-methylenediamine and 4-tert-octylamino-2,6-dichloro-1 ,3,5-s-triazine, tris- (2,2,6,6-tetramethyl-4-piperidyl) nitri
- Oxalamides for example 4,4'-dioctyloxyoxanilide, 2,2'-diethoxyoxanilide, 2,2'-dioctyl- oxy-5,5'-di-tert-butyloxanilide, 2,2'-didodecyloxy-5,5'di-tert-butyloxanilide, 2-ethoxy-2'- ethylox-anilide, N,N'-bis-(3-dimethylaminopropyl)oxalamide, 2-ethoxy-5-tert-butyl-2'- ethyloxanilide and its mixture with 2-ethoxy-2'-ethyl-5,4'-di-tert-butyloxanilide, mixtures of o- and p-methoxy- and of o- and p-ethoxy-disubstituted oxanilides.
- Phosphites and phosphonites for example triphenyl phosphite, diphenyl alkyl phosphites, phenyl dialkyl phosphites, tris(nonylphenyl) phosphite, trilauryl phosphite, trioc- tadecyl phos-phite, distearyl pentaerythrityl diphosphite, tris(2,4-di-tert-butylphenyl) phosphite, diisodecyl pentaerythrityl diphosphite, bis(2,4-di-tert-butylphenyl) pentaerythrityl diphosphite, bis(2,6-di-tert-butyl-4-methylphenyl) pentaerythrityl diphosphite, bis-isodecyloxy pentaerythrityl diphosphite, bis(2,
- the composition of the present invention may comprise one or more solvents.
- suitable solvents are ketones, ethers and esters, such as methyl ethyl ketone, isobutyl methyl ketone, cyclopentanone, cyclohexanone, N-methylpyrrolidone, dioxane, tetrahydrofuran, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dipropyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, propylene glycol dimethyl ether, propylene glycol diethyl ether, propylene glycol dipropyl ether, diethylene glycol monomethyl
- compositions according to this invention can comprise additionally a crosslinking agent which is activated by an acid or a base, for example as described in JP 10 221843-A, and a compound which generates acid or base thermally or by actinic radiation and which activates a crosslinking reaction.
- cationic photo or thermal initiators such as sulfonium-, phospho- nium- or iodonium salts, for example lrgacure®250, lrgacure®270, San-Aid SI series, SI-60L, SI-80L, SI-100L, SI-110L, SI-145, SI-150, SI-160, SI-180L produced by Sanshin Chemical, cyclopentadienyl-arene-iron(ll) complex salts, for example (r
- sulfonium-, phospho- nium- or iodonium salts for example lrgacure®250, lrgacure®270, San-Aid SI series
- pyridinium and / ' - quinolinium salts as described e.g. in EP 497531 and EP 441232 may be used in combination with the new photoinitiators.
- bases are imidazole and its derivatives for example Curezole OR series and CN series provided by Shikoku Chemicals.
- compositions according to the invention may comprise crosslinking agents which can be activated by an acid.
- the crosslinking agents which can be activated by acid or base include compounds having epoxy or oxetane groups. There may be used a solid or liquid known epoxy or oxetane compound and said compound is used depending on required characteristics.
- a preferred epoxy resin is a bisphenol S type epoxy resin such as BPS-200 produced by Nippon Kayaku Co., Ltd., EPX-30 produced by ACR Co., Epiculon EXA-1514 produced by Dainippon Ink & Chemicals Inc., etc.; a bisphenol A type epoxy resin such as Epiculon N-3050, N-7050, N-9050 produced by Dainippon Ink & Chemicals Inc., XAC-5005, GT-7004, 6484T, 6099 ; a bisphenol F type epoxy resin such as YDF-2004, YDF2007 produced by NSCC Epoxy Manufacturing Co., Ltd., etc.
- a bisphenol fluorene type epoxy resin such as OGSOL PG, PG-100, EG, EG-210 produced by Osaka Gas Chemicals
- a diglycidyl phthalate resin such as Blemmer DGT produced by Nippon Oil and Fats Co., Ltd., etc.
- a heterocyclic epoxy resin such as TEPIC produced by Nissan Chemical Industries, Ltd., Araldite PT810 produced by Ciba Specialty Chemicals Inc., etc.
- a bixylenol type epoxy resin such as YX-4000 produced by Yuka Shell Co., etc.
- a biphenol type epoxy resin such as YL- 6056 produced by Yuka Shell Co., etc.
- a tetraglycidyl xylenoylethane resin such as ZX-1063 produced by NSCC Epoxy Manufacturing Co., Ltd., etc.
- a novolak type epoxy resin such as EPPN-201 , EOCN-103, EOCN-1020,
- oxetane compounds are 3-ethyl-3- hydroxymethyloxetane (oxetane alcohol), 2-ethylhexyloxetane, xylene bisoxetane, 3- ethyl-3[[(3-ethyloxetane-3-yl)methoxy]methyl]oxetane (Aron Oxetane series) provided by Toagosei Co., Ltd..
- the photopolymerizable compositions can be used for various purposes, for example as printing ink, e.g. screen printing inks, inks for offset- or flexo printing, as a clear finish, as a white or colored finish, for example for wood or metal, as powder coating, as a coating material, inter alia for paper, wood, metal or plastic, as a daylight-curable coating for the marking of buildings and roadmarking, for photographic reproduction techniques, for holographic recording materials, for image recording techniques or to produce printing plates which can be developed with organic solvents or with aqueous alkalis, for producing masks for screen printing, as dental filling compositions, as adhesives, as pressure-sensitive adhesives, as laminating resins, as etch resists, solder resists, electroplating resists, or permanent resists, both liquid and dry films, as photostructurable dielectric, for printed circuit boards and electronic circuits, as resists to manufacture color filters for a variety of display applications or to generate structures in the manufacturing process of plasma-display panels and electro
- compositions according to the invention are further suitable for the production of medical equipment, auxiliaries or implants. Further, the compositions according to the invention are suitable for the preparation of gels with thermotropic properties, as for example described in DE19700064 and EP678534.
- novel photoinitiators may additionally be employed as initiators for emulsion polymerizations, pearl polymerizations or suspension polymerizations, as polymerization initiators for fixing ordered states of liquid-crystalline monomers and oligomers, or as initiators for fixing dyes on organic materials.
- a prepolymer with polyun- saturated monomers, which may additionally include a monounsaturated monomer as well. It is the prepolymer here which primarily dictates the properties of the coating film, and by varying it the skilled worker is able to influence the properties of the cured film.
- the polyunsaturated monomer functions as a crosslinking agent which renders the film insoluble.
- the monounsaturated monomer functions as a reactive diluent, which is used to reduce the viscosity without the need to employ a solvent.
- Unsaturated polyester resins are usually used in two-component systems together with a monounsaturated monomer, preferably with styrene.
- a monounsaturated monomer preferably with styrene.
- specific one- component systems are often used, for example polymaleimides, polychalcones or polyimides, as described in DE 2308830.
- the novel photoinitiators can also be used for the polymerization of radiation-curable powder coatings.
- the powder coatings can be based on solid resins and monomers containing reactive double bonds, for example maleates, vinyl ethers, acrylates, acrylamides and mixtures thereof.
- novel photocurable compositions are suitable, for example, as coating materials for substrates of all kinds, for example wood, textiles, paper, ceramics, glass, plastics such as polyesters, polyethylene terephthalate, polyolefins or cellulose acetate, especially in the form of films, and also metals such as Al, Cu, Ni, Fe, Zn, Mg or Co and GaAs, Si or Si0 2 to which it is intended to apply a protective layer or, by means of im- agewise exposure, to generate an image.
- substrates of all kinds for example wood, textiles, paper, ceramics, glass, plastics such as polyesters, polyethylene terephthalate, polyolefins or cellulose acetate, especially in the form of films, and also metals such as Al, Cu, Ni, Fe, Zn, Mg or Co and GaAs, Si or Si0 2 to which it is intended to apply a protective layer or, by means of im- agewise exposure, to generate an image.
- the novel radiation-sensitive compositions further find application as negative resists, having a very high sensitivity to light and being able to be developed in an aqueous alkaline medium without swelling. They are suitable for the production of printing forms for relief printing, planographic printing, photogravure or of screen printing forms, for the production of relief copies, for example for the production of texts in braille, for the production of stamps, for use in chemical milling or as a microresist in the production of integrated circuits.
- the compositions further may be used as photopatternable dielectric layer or coating, encapsulating material and isolating coating in the production of computer chips, printed boards and other electric or electronic components.
- the pos- sible layer supports, and the processing conditions of the coating substrates, are just as varied.
- the novel composition also relates to a photosensitive thermosetting resin composition and a method of forming a solder resist pattern by the use thereof, and more particular- ly relates to a novel photosensitive thermosetting resin composition useful as materials for the production of printed circuit boards, the precision fabrication of metallic articles, the etching of glass and stone articles, the relief of plastic articles, and the preparation of printing plates and particularly useful as a solder resist for printed circuit boards and to a method of forming a solder resist pattern by the steps of exposing a layer of the resin composition selectively to an actinic ray through a photomask having a pattern and developing the unexposed part of the layer.
- the solder resist is a substance which is used during the soldering of a given part to a printed circuit board for the purpose of preventing molten solder from adhering to irrel- evant portions and protecting circuits. It is, therefore, required to possess such properties as high adhesion, insulation resistance, resistance to soldering temperature, resistance to solvents, resistance to alkalis, resistance to acids, and resistance to plating.
- the photocurable compositions according to the invention have a good thermal stability and are sufficiently resistant to inhibition by oxygen, they are particularly suitable for the production of color filters or color mosaic systems, such as described, for example, in EP320264.
- Color filters usually are employed in the manufacturing of flat panel displays such as LCD's, PDP(plasma panel display), EL (electrolumi- nessence) display, and projection systems, image sensors, CCD (charge coupled device), and CMOS (complementary metal oxide semiconductor) sensors for scanner, digital camera and video camera.
- the color filters usually are prepared by forming red, green and blue pixels and a black matrix on a glass substrate. In these processes photocurable compositions according to the invention can be employed.
- a particularly preferred method of use comprises adding of the coloring matters, dyes and pigments of red, green and blue colors to the light-sensitive resin composition of the present invention, coating of the substrate with the composition, drying of the coating with a short heat treatment, patternwise exposure of the coating to actinic radiation and subsequent development of the pattern in an aqueous alkaline developer solution and optionally a heat treatment.
- a red, green and blue pigmented coating in any desired order, on top of each other with this process a color filter layer with red, green and blue color pixels can be produced.
- the development is carried out by washing out the areas which were not polymerized with a suitable alkali developing solution. This process is repeated to form the image having plural colors.
- the above picture elements can be utilized as a light- shielding mask.
- a position adjustment of a mask gets unnecessary and a concern on a position slippage thereof is removed.
- the composition of the present invention is suitable for, for example, a forming material for a color filter.
- the color- ing matters, dyes and pigments of red, green and blue colors are added to the light-sensitive resin composition of the present invention, and the processes for forming an image are repeated to form the picture elements of red, green and blue colors.
- the light-sensitive resin composition to which, for example, the black coloring materials, dyes and pigments are added is provided on an overall face.
- An overall exposure (or a partial exposure via a light-shielding mask) can be provided thereon to form the picture elements of a black color all over the spaces (or all but a partial region of the light- shielding mask) between the picture elements of red, green and blue colors.
- the light-sensitive resin composition of the present invention can be used as well for a layer transfer material.
- the light-sensitive resin composition is layer-wise provided directly on a temporary support, preferably on a polyeth- ylene terephthalate film, or on a polyethylene terephthalate film on which an oxygen- shielding layer and a peeling layer or the peeling layer and the oxygen-shielding layer are provided.
- a removable cover sheet made of a synthetic resin is laminated thereon for a protection in handling.
- the above cover sheet is removed in use and the light-sensitive resin composition layer is laminated on a permanent support. Subsequently, peeling is carried out between those layer and a temporary support when an oxygen-shielding layer and a peeling layer are provided, between the peeling layer and the oxygen-shielding layer when the peeling layer and the oxygen-shielding layer are provided, and between the temporary support and the light-sensitive resin composition layer when either the peeling layer or the oxygen-shielding layer is not provided, and the temporary support is removed.
- a metal support, glass, ceramics, and a synthetic resin film can be used as a support for a color filter.
- Glass and a synthetic resin film which is transparent and have an excellent dimension stability is particularly preferred.
- the thickness of the light-sensitive resin composition layer is usually 0.1 to 50 micrometers, in particular 0.5 to 5 micrometers.
- the developer solution can be used in all forms known to the person skilled in the art, for example in form of a bath solution, puddle, or a spraying solution.
- the methods such as rubbing with a rotary brush and rubbing with a wet sponge.
- the temperature of the developing solution is preferably at and around room temperature to 40°C.
- the developing time is changeable according to the specific kind of the light-sensitive resin composition, the alkalinity and temperature of the developing solution, and the kind and concentration of the organic solvent in the case where it is added. Usually, it is 10 seconds to 2 minutes. It is possible to put a rinsing step after the development processing.
- a final heat treatment is preferably carried out after the development processing.
- a support having a layer which is photopolymerized by exposing (hereinafter referred to as a photocured layer) is heated in an electric furnace and a drier, or the photocured layer is irradiated with an infrared lamp or heated on a hot plate.
- the heating temperature and time depend on the composition used and the thickness of the formed layer. In general, heating is preferably applied at about 120°C to about 250°C, for about 5 to about 60 minutes.
- compositions according to this invention can also comprise latent pigments which are transformed into finely dispersed pigments during the heat treatment of the latent pigment containing photosensitive pattern or coating.
- the heat treatment can be performed after exposure or after development of the latent pigment-containing pho- toimageable layer.
- latent pigments are soluble pigment precursors which can be transformed into insoluble pigments by means of chemical, thermal, photolytic or radia- tion induced methods as described, for example, in US5879855. This transformation of such latent pigments can be enhanced by adding a compound which generates acid at actinic exposure or by adding an acidic compound to the composition. Therefore, a color filter resist can also be prepared, which comprises a latent pigment in a composition according to this invention.
- color filters especially with respect to the above described combinations of pigments and ionic impurity scavenger are given in EP320264. It is understood, that the photoinitiators according to the present invention, i.e. the compounds of the formula I or II in the color filter formulations described in EP 320264 can replace the triazine initiator compounds. Suitable components for a color filter compositions are described above in more detail.
- the photoinitiators of the present invention can be used in color filter resists, for exam- pie, such as those given as examples above, or can partially or fully replace the known photoinitiators in such resists. It is understood by a person skilled in the art that the use of the new photoinitiators of the present invention is not limited to the specific binder resins, crosslinkers and formulations of the color filter resist examples given hereinbefore but can be used in conjunction with any radically polymerizable component in combination with a dye or color pigment or latent pigment to form a photosensitive color filter ink or color filter resist.
- subject of the invention also is a color filter prepared by providing red, green and blue (RGB) colour elements and, optionally a black matrix, all comprising a photosensitive resin and a pigment on a transparent substrate and providing a transparent electrode either on the surface of the substrate or on the surface of the color filter layer, wherein said photosensitive resin comprises a polyfunctional acrylate monomer, an organic polymer binder and a photopolymerization initiator of formula I or II, as described above.
- the monomer and binder components, as well as suitable pigments are as described above.
- the transparent electrode layer can either be applied on the surface of the transparent substrate or can be provided on the surface of the red, green and blue picture elements and the black ma- trix.
- the transparent substrate is for example a glass substrate which can additionally have an electrode layer on its surface.
- the photosensitive compositions of the present invention are also suitable for the preparation of the black matrix of color filters.
- Said black matrix composition for example comprises
- an organic binder in particular an organic binder, which is an epoxy acrylate resin hav- ing a carboxyl group,
- a polymer dispersant in particular a polymer dispersant containing a basic functional group.
- an inorganic black matrix can be formed from deposited (i.e. sputtered) metal (i.e. chromium) film on the transparent substrate by a suitable imaging process, for example utilizing photolithographic patterning by means of an etch resist, etching the inorganic layer in the areas not protected by the etch resist and then removing the remaining etch resist.
- the black matrix can be applied. It can either be applied directly on the transparent substrate prior to formation of the red, green and blue (RGB) colour filter as already mentioned above, or it can be applied after the RGB colour filter is formed on the substrate.
- RGB red, green and blue
- the black matrix can also be applied on the substrate opposite to the RGB color filter element-carrying substrate, which is separated from the former by a liquid crystal layer. If the transparent electrode layer is deposited after applying the RGB color filter elements and -optionally - the black matrix, an additional overcoat film as aprotective layer can be applied on the color filter layer prior to deposition of the electrode layer, for example, as described in US 5650263.
- photosensitive resin or thermosetting resin compositions are employed.
- the photosensitive composition of the present invention can also be used to form such overcoat layers, because a cured film of the composition is excellent in flatness, hardness, chemical and thermal resistance, transparency espe- daily in a visible region, adhesion to a substrate, and suitability for forming a transparent conductive film, e.g., an ITO film, thereon.
- a protective layer there has been a demand that unnecessary parts of the protective layer, for example on scribing lines for cutting the substrate and on bonding pads of solid image sensors should be removed from the substrate as described in JP57-42009A, JP1-130103A and JP1-134306A.
- the photosensitive composition allows to easily remove the unnecessary parts of the protective layer by photolithography. It is obvious to those skilled in the art, that the photosensitive compositions of the present invention can be used for generating red, green and blue color pixels and a black matrix, for the manufacture of a color filter, regardless of the above described differences in processing, regardless, of additional layers which can be applied and regardless of differences in the design of the color filter.
- the use of a composition according to the present invention to form colored elements shall not be regarded as limited by different designs and manufacturing processes of such color filters.
- the photo-sensitive composition of the present invention can suitably be used for forming a color filter but will not be limited to this application. It is useful as well for a record- ing material, a resist material, a protective layer, a dielectric layer, in display applications and display elements, a paint, and a printing ink.
- the photosensitive compositions according to the invention are also suitable for manufacturing interlayer insulating layers or dielectric layers in a liquid crystal display, and more particularly in a reflection type liquid crystal display including an active matrix type display having a thin film transistor (TFT) as a switching device, and a passive matrix type without a switching device.
- TFT thin film transistor
- liquid crystal displays have, for example, been widely used for pocket- type TV sets and terminal devices for communication by virtue of its small thickness and light weight.
- a reflection type liquid crystal display without necessity of using a back light is in particular in demand because it is ultra-thin and light-weight, and it can significantly reduce power consumption.
- a back light is removed out of a presently available transmission type color liquid crystal display and a light reflec- tion plate is added to a lower surface of the display, it would cause a problem in that the efficiency of utilizing lights is low, and it is not possible to have practical brightness.
- various reflection type liquid crystal displays for enhancing an efficiency of utilizing lights.
- a certain reflection type liquid crystal display is designed to include a pixel electrode having reflection function.
- the reflection type liquid crystal display includes an insulating substrate and an opposing substrate spaced away from the insulating substrate. A space between the substrates is filled with liquid crystals.
- a gate electrode is formed on the insulating sub- strate, and both the gate electrode and the insulating substrate are covered with a gate insulating film.
- a semiconductor layer is then formed on the gate insulating film above the gate electrode.
- a source electrode and a drain electrode are also formed on the gate insulating film in contact with the semiconductor layer. The source electrode, the drain electrode, the semiconductor layer, and the gate electrode cooperate with one another to thereby constitute a bottom gate type TFT as a switching device.
- An interlayer insulating film is formed covering the source electrode, the drain electrode, the semiconductor layer, and the gate insulating film therewith.
- a contact hole is formed throughout the interlayer insulating film on the drain electrode.
- a pixel electrode made of aluminum is formed on both the interlayer insulating film and an inner sidewall of the contact hole.
- the drain electrode of the TFT is eventually in contact with the pixel electrode through the interlayer insulating film.
- the interlayer insulating layer is generally designed to have a roughened surface by which the pixel electrode acts as a reflection plate which diffuses lights to get a wider angle for viewing (angle of visibility).
- the reflection type liquid crystal display remarkably enhances an efficiency of using lights by virtue that the pixel electrode acts as a light reflection plate.
- the interlayer insulating film is designed to have projections and recesses by photolithography.
- photolithography methods using positive and negative photoresists are used.
- the compositions according to the invention are especially suitable.
- the photosensitive compositions according to the invention can further be used for manufacturing spacers, which control a cell gap of the liquid crystal part in liquid crystal display panels.
- a transparent column spacer has been widely used in the LCD technology, but the transparent spacer disturbs polarized light reducing the contrast ratio.
- One of a possible solution is to mix with a black colorant not to scatter but to absorb the polarized light, i.e. a black column spacer.
- Black column spacer is also used in the LCD technology. In case of black column spacer, one or more further black colorants or mixture of other color colorants described above colorant is used.
- the spacing between the substrates in the cell is maintained constant by sparsely distributing glass or polymer spheres about several micrometers in diameter as spacers between the substrates.
- the spacers are thus held between the substrates to maintain the distance between the substrates at a constant value. The distance is determined by the diameter of the spacers. The spacers assure the minimum spacing between the substrates; i.e., they prevent a decrease in distance between the substrates.
- the mechanical stress to liquid crystal panel tends to grow.
- the de- mand for spacer that controls the cell gap to raise mechanical strength becomes strong thus the multi-spacer method is used.
- the multi-spacer method when cell gap narrows by pressure from the outside, adding to main-spacer that controls the cell gap normally lower sub-spacer supports the cell gap against external stress.
- the multi- spacer can follow the contraction of liquid crystal at low temperature conditions by main-spacer and prevent to generate bubbles inside the liquid crystal.
- the multi-spacer which contains main-spacer and sub-spacer is formed in the same step using, for example, a halftone mask as described in JPA-201 1065133.
- the photosensitive compositions according to the invention are eligible for manufacturing process using halftone mask.
- photosensitive compositions for producing protective layer with spacers for color filters are disclosed in JP 2000-81701A and dry film type photoresists for spacer materials are also disclosed in JP 11-174459A and JP 11-174464A.
- the photosensitive compositions, liquid and dry film photoresists are comprising at least an alkaline or acid soluble binder polymer, a radically polymerizable monomer, and a radical initiator.
- thermally crosslinkable components such as epoxide and carboxylic acid may additionally be included.
- a photosensitive composition is applied to the substrate, for instance a color filter panel and after the substrate is prebaked, it is exposed to light through a mask. Then, the substrate is developed with a developer and patterned to form the desired spacers.
- the composition contains some thermosetting components, usually a postbaking is carried out to thermally cure the composition.
- the photocurable compositions according to the invention are suitable for producing spacers for liquid crystal displays (as described above) because of their high sensitivity.
- the photosensitive compositions according to the invention are also suitable for manufacturing microlens arrays used in liquid crystal display panels, image sensors and the like.
- Microlenses are microscopic passive optical components that fit on active optoelectronic devices such as detectors, displays, and light emitting devices (light-emitting diodes, transversal and vertical cavity lasers) to improve their optical input or output quality.
- active optoelectronic devices such as detectors, displays, and light emitting devices (light-emitting diodes, transversal and vertical cavity lasers) to improve their optical input or output quality.
- the areas of applications are wide and cover areas such as telecommunications, in- formation technology, audio-visual services, solar cells, detectors, solid-state light sources, and optical interconnects.
- the microlens arrays are used for condensing illuminating light on the picture element regions of a nonluminescent display device, such as a liquid crystal display devices, to increase the brightness of the display, for condensing incident light or as a means for forming an image on the photoelectric conversion regions of a line image sensor used for example in facsimiles and the like to improve the sensitivity of these devices, and for forming an image to be printed on a photosensitive means used in liquid crystal printers or light emitting diode (LED) printers.
- a nonluminescent display device such as a liquid crystal display devices
- CMOS complementary metal-oxide-semiconductor
- CCD charge coupled device
- a detector array the collection of as much light as possible in each detector element or pixel is wanted. If a microlens is put on top of each pixel, the lens collects incoming light and focuses it onto an active area that is smaller than the size of the lens.
- microlens arrays can be produced by a variety of methods; for each of them compositions according to the present invention may be employed.
- a method for obtaining convex lenses wherein a pattern of the lenses in a planar configuration is drawn on a thermoplastic resin by a conventional photolithographic technique or the like, and then the thermoplastic resin is heated to a temperature above the softening point of the resin to have flowability, thereby causing a sag in the pattern edge (so called "reflowing") (see, e.g., JP 60-38989A, JP 60-165623A, JP 61- 67003A, and JP 2000-39503A).
- reflowing see, e.g., JP 60-38989A, JP 60-165623A, JP 61- 67003A, and JP 2000-39503A.
- a pattern of the lenses can be obtained by exposure of this resin to light.
- a method for forming a plastic or glass material by the use of a mold or a stamper As lens material, a photocurable resin and a thermosetting resin can be used in this method (see, e.g., WO99/38035).
- a photosensitive resin layer is formed on the upper surface of a supporting substrate. Thereafter, with the use of a separate shading mask, the upper surface of the photo-sensitive resin layer is illuminated with light from a mercury lamp or the like, so that the photosensitive resin layer is exposed to the light. As a result, the exposed portions of the photosensitive resin layer swell into the shape of convex lenses to form the light condensing layer having a plurality of microlens.
- a method for generating a lens effect wherein a photosensitive resin is exposed to light with a particular intensity distribution to form a distribution pattern of refractive index depending upon the light intensity (see, e.g., JP 60-72927A and JP 60-166946A).
- the photosensitive compositions according to the invention can be used in any one of the above-mentioned methods to form microlens arrays using photocurable resin compositions.
- thermoplastic resins like photoresist A particular class of techniques concentrates on forming microlenses in thermoplastic resins like photoresist.
- the technique named reflow technique, comprises the steps of defining the lenses' footprint in a thermoplastic resin, e.g. by photolithography in a photosensitive resin like a photoresist, and subsequently heating this material above its reflow temperature.
- the surface tension draws the island of photoresist into a spherical cap with a volume equal to the original island before the reflow.
- This cap is a plano-convex microlens.
- Advantages of the technique are, amongst others, the sim- plicity, the reproducibility, and the possibility of integration directly on top of a light- emitting or light-detecting optoelectronic device.
- an overcoat layer is formed on the patterned lens units with a rectangular shape prior to reflowing to avoid a sagging of the island of the resin in the middle without reflow into a spherical cap in the reflow step.
- the overcoat acts as a permanent protective layer.
- the coating layer is also made of a photosensitive composition. Microlens arrays can also be fabricated by the use of a mold or a stamper as, for example, disclosed in EP0932256.
- a process of manufacturing the planar microlens array is as follows: a release agent is coated on a shaping surface of a stamper on which convex portions are densely arranged, and a photocurable synthetic resin material having a high refractive index is set on the shaping surface of the stamper. Next, the base glass plate is pushed onto the synthetic resin material, thereby spreading the synthetic resin material, and the synthetic resin material is cured by irradiating with ultraviolet radiation or by heating and is shaped to form the convex microlenses. Thereafter the stamper is peeled off.
- a photocurable synthetic resin material having a low refractive index is additionally coated onto the convex microlenses as an adhesive layer and a glass substrate which is made into a cover glass plate is pushed onto the synthetic resin material, thereby spreading the same.
- the synthetic resin material is then cured and finally the planar microlens array is formed.
- a similar method using a mold is applied for the production of a prism sheet, which is used as a part of backlight units for color liquid crystal display panels to enhance the brightness.
- a prism sheet forming a prism row on one side is mounted on the light-emitting surface of the backlight.
- an active energy ray-curable composition is cast and spread in a lens mold which is made of metal, glass or resin and forms the lens shape of the prism row, etc., after which a transparent substrate sheet is placed onto it and active energy rays from an active energy ray-emitting source are irradiated through the sheet for curing.
- the prepared lens sheet is then released from the lens mold to obtain the lens sheet.
- the active energy ray-curable composition used to form the lens section must have a variety of properties, including adhesion to the transparent substrate, and suitable optical characteristics.
- Lenses at least with some photoresists in the prior art are not desirable for some applications since the optical transmittance in the blue end of the optical spectrum is poor. Because the photocurable compositions according to the invention have low yellowing properties, both thermally and photochemically, they are suitable for the production of microlens arrays as described above.
- novel radiation-sensitive compositions are also suitable for photo-lithographic steps used in the production process of plasma display panels (PDP), particularly for the imaging forming process of barrier rib, phosphor layer and electrodes.
- PDP plasma display panels
- the PDP is a planar display for displaying images and information by virtue of the emission of light by gas discharge.
- DC direct current
- AC alternating current
- the principle of the DC type color PDP will be briefly explained.
- the space intervening between two transparent substrates (generally glass plates) is divided into numerous minute cells by latticed barrier ribs interposed between the transparent substrates.
- a discharge gas such as He or Xe
- a phosphor layer which, on being excited by the ultraviolet light generated by the discharge of the discharge gas, emits visible light of three primary colors.
- electrodes are disposed as opposed to each other across the relevant cells.
- the cathodes are formed of a film of transparent electroconductive material such as NESA glass.
- the discharge gas which is sealed in the cells induces plasma discharge and, by virtue of the ultraviolet light radiated consequently, incites the fluorescent elements of red, blue, and green colors to emit lights and effect the display of an image.
- the fluorescent elements of red, blue, and green colors In the full-color display system, three fluorescent elements severally of the three primary colors of red, blue, and green mentioned above jointly form one picture element.
- the cells in the DC type PDP are divided by the component barrier ribs of a lattice, whereas those in the AC type PDP are divided by the barrier ribs which are arranged parallel to each other on the faces of the substrates. In either case, the cells are divided by barrier ribs. These barrier ribs are intended to confine the luminous discharge within a fixed area to preclude false discharge or cross talk between adjacent discharge cells and ensure ideal display.
- compositions according to the invention also find application for the production of one- or more-layered materials for the image recording or image reproduction (copies, reprography), which may be mono- or polychromatic. Furthermore the materials are suitable for color proofing systems.
- this technology formulations containing micro- capsules can be applied and for the image production the radiation curing can be followed by a thermal treatment.
- Such systems and technologies and their applications are for example disclosed in US5376459.
- the compounds of the formula I or II are also suitable as photoinitiators in the holo- graphic data storage application.
- Said photoinitiators generate radicals and initiate polymerization of monomer upon irradiation with blue laser radiation, suitable for holographic data storage.
- the wavelength range of the blue laser is 390-420 nm, preferably 400-410 nm and particularly 405 nm.
- Holographic storage systems (holographic recording media) are for example used to record and to retrieve a large amount of data with fast access time.
- the photoinitiators of the invention are for example in particular suitable for systems as described for example in WO03/021358.
- the holographic data storage system is preferably comprised of a matrix network of low-refractive index matrix precursors and high-refractive index photopolymerizable monomers.
- the matrix precursor and photoactive monomer can be selected such that (a) the reac- tion by which the matrix precursor is polymerized during the cure is independent from the reaction by which the photoactive monomer will be polymerized during writing of a pattern, e.g. data, and (b) the matrix polymer and the polymer resulting from polymerization of the photoactive monomer (the photopolymer) are compatible with each other.
- the matrix is considered to be formed when the photorecording material, i.e. the matrix material plus the photoactive monomer, photoinitiator and/or additives, exhibits an elastic modulus of at least about 10 5 Pa, generally about 10 5 Pa to about 10 9 Pa.
- the media matrix is formed by in-situ polymerization which yields as cross-linked network in the presence of the photopolymerizable monomers which remain "dissolved” and unreacted.
- the matrix containing un-reacted, photopolymerizable monomers can also be formed by other means, for example by using a solid-resin matrix material in which the photoreactive, liquid monomer is homogeneously distributed. Then, monochromatic exposure generates the holographic pattern, which according to the light intensity distribution, polymerizes the photoreactive monomers in the solid pre-formed matrix.
- the unreacted monomers diffuse through the matrix, producing a modulation of the refractive index that is determined by the difference between the refractive indices of the monomer and the matrix and by the relative volume fraction of the monomer.
- the thickness of the recording layer is in the range of several micrometers up to a thickness of one millimeter. Because of such thick holographic data storage layers it is required that the photoinitiator combines high pho- toreactivity with low absorbance, in order to render the layer transparent at the laser wavelength to assure that the extent of photopolymerization is as little as possible dependent on the exposure depth into the recording layer.
- the photoinitiators of the present invention combine high reactivity with low absorbance at 405 nm and are suitable for this application.
- Dyes and sensitiz- ers can also be added to the formulations. Suitable dyes and sensitizers for blue laser radiation are for example coumarines, xanthones, thioxanthones, see list above.
- the photoinitiators allow photopolymerization of monomers in thick layers, such as required for holographic data storage, with high sensitivity and yield recording layers which are sensitive to blue laser radiation.
- the photoinitiators when applied at a concentration of 2-8 wt% in the photosensitive layer of 20 micron thickness yield an absorbance of the layer which comprises the photoinitiator, of less than 0.4, preferably less than 0.2 at the laser wavelength.
- the photoinitiators are in particular suitable for the preparation of optical articles (for example optical waveguides) or holographic recording media e.g. comprising a polymer and an organic photoinitiator as described above, having a maximum absorption at a UV wavelength in the range of 340-450 nm, wherein the refractive index contrast ad- justed sensitivity is greater than 3x10 "6 An/(mJ/cm 2 ).
- the polymer is formed by polymerizing a material comprising component 1 and component 2, wherein component 1 comprises a NCO-terminated pre-polymer and component 2 comprises a polyol.
- Component 1 is, for example, diphenylmethane diisocyanate, toluene diisocya- nate, hexamethylene diisocyanate, a derivative of hexamethylene diisocyanate, a methylenebiscyclohexylisocyanate, a derivative of methylenebiscyclohexylisocyanate.
- Component 2 is for example a polyol of propylene oxide.
- the photoactive monomer is an acrylate monomer. In such media the shrinkage induced by writing is usually less than 0.25%.
- Photocuring further is of great importance for printings, since the drying time of the ink is a critical factor for the production rate of graphic products, and should be in the order of fractions of seconds. UV-curable inks are particularly important for screen printing and offset inks.
- the novel mixtures are highly suitable also for producing printing plates.
- This application uses, for example, mixtures of soluble linear polyam- ides or styrene/butadiene and/or styrene/isoprene rubber, polyacrylates or polymethyl methacrylates containing carboxyl groups, polyvinyl alcohols or urethane acrylates with photopolymerizable monomers, for example acrylamides and/or methacrylamides, or acrylates and/or methacrylates, and a photoinitiator. Films and plates of these systems (wet or dry) are exposed over the negative (or positive) of the printed original, and the uncured parts are subsequently washed out using an appropriate solvent or aqueous solutions.
- Another field where photocuring is employed is the coating of metals, in the case, for example, of the coating of metal plates and tubes, cans or bottle caps, and the photocuring of polymer coatings, for example of floor or wall coverings based on PVC.
- Examples of the photocuring of paper coatings are the colourless varnishing of labels, record sleeves and book covers.
- the composite compound consists of a self-supporting matrix material, for example a glass fibre fabric, or alternatively, for example, plant fibres [cf. K.-P. Mieck, T. Reussmann in Kunststoffe 85 (1995), 366-370], which is im- pregnated with the photocuring formulation.
- compositions and compounds according to the invention can be used for the production of holographies, waveguides, optical switches wherein advantage is taken of the development of a difference in the index of refraction between irradiated and unir- radiated areas.
- the layer (wet or dry) applied to the support is irradiated imagewise, e.g. through a photomask, with UV or visible light, and the unexposed areas of the layer are removed by treatment with a developer.
- Application of the photocurable layer to metal can also be carried out by electrodeposition.
- the exposed areas are polymeric through crosslinking and are therefore insoluble and remain on the support. Appropriate col- ouration produces visible images.
- the support is a metallized layer
- the metal can, following exposure and development, be etched away at the unexposed areas or reinforced by electroplating.
- the novel photoinitiators provide excellent performance in generating so called printout images, whereby a color change is induced due to irradiation.
- printout images different dyes and/or their leuco form are used and examples for such print out image systems can be fount e.g. in WO96/41240, EP706091 , EP511403, US3579339 and US4622286.
- the novel photoinitiator is also suitable for a photopatternable composition for forming a dielectric layer of a multilayer layer circuit board produced by a sequential build-up process.
- the invention provides compositions, as well as a process, for producing pigmented and nonpigmented paints and varnishes, powder coatings, print- ing inks, printing plates, adhesives, pressure sensitive adhesives, dental compositions, gel coats, photoresists for electronics, etch resists, both liquid and dry films, solder resists, resists to manufacture color filters for a variety of display applications (a color filter resist contains pigments, pigments and dyes (i.e. hybrid systems) or dyes alone), resists to generate structures in the manufacturing processes of plasma-display panels (e.g. barrier rib, phosphor layer, electrode), electroluminescence displays and LCD (e.g.
- plasma-display panels e.g. barrier rib, phosphor layer, electrode
- electroluminescence displays and LCD e.g.
- interlayer insulating layers spacers, multi-spacers, microlens arrays
- electrical and electronic components for producing magnetic recording materials, micromechanical parts, waveguides, optical switches, plating masks, colour proofing systems, glass fibre cable coatings, screen printing stencils, three-dimensional ob- jects by means of stereolithography, image recording materials for holographic recordings (e.g.
- HDS holographic data storage
- microelectronic circuits for holographic data storage (HDS)
- decolorizing materials for a UV and visible laser direct imaging system and for forming dielectric layers in a sequential build-up layer of a printed circuit board, bank/pixel definition layers for OLED, sealants for LCD and OLED, insulation/passivation layers for LCD and OLED, insulation for metal wiring/transparent conductive films for touch panel, coatings for touch panel, decorative inks for touch panel, protective films for touch panel or etching resists for touch panel; wherein the process comprises irradiating a composition as described abbove with electromagnetic radiation in the range from 150 to 600 nm, or with electron beam or with X-rays.
- Substrates used for photographic information recordings include, for example, films of polyester, cellulose acetate or polymer-coated papers; substrates for offset printing formes are specially treated aluminium, substrates for producing printed circuits are copper-clad laminates, and substrates for producing integrated circuits are, for example, silicon wafers.
- the layer thickness of the photosensitive layer for photographic materials and offset printing forms is generally from about 0.5 ⁇ to 10 ⁇ , while for printed circuits it is from 0.1 ⁇ to about 100 ⁇ .
- the solvent is removed, generally by drying, to leave a coat of the photoresist on the substrate.
- Coating of the substrates can be carried out by applying to the substrate a liquid com- position, a solution or a suspension.
- solvents and the concentration depend principally on the type of composition and on the coating technique.
- the solvent should be inert, i.e. it should not undergo a chemical reaction with the components and should be able to be removed again, after coating, in the course of drying.
- suitable solvents are ketones, ethers and esters, such as methyl ethyl ketone, isobu- tyl methyl ketone, cyclopentanone, cyclohexanone, N-methylpyrrolidone, dioxane, tet- rahydrofuran, 2-methoxyethanol, 2-ethoxyethanol, 1-methoxy-2-propanol, 1 ,2-dimeth- oxyethane, ethyl acetate, n-butyl acetate, ethyl 3-ethoxypropionate, 2-methoxyprop- ylacetate, methyl-3-methoxypropionate, 2-heptanone, 2-pentanone, and ethyl lactate.
- ketones such as methyl ethyl ketone, isobu- tyl methyl ketone, cyclopentanone, cyclohexanone, N-methylpyrrolidone, diox
- the solution is applied uniformly to a substrate by means of known coating techniques, for example by spin coating, dip coating, knife coating, curtain coating, brushing, spraying, especially by electrostatic spraying, and reverse-roll coating, and also by means of electrophoretic deposition. It is also possible to apply the photosensitive layer to a temporary, flexible support and then to coat the final substrate, for example a copper-clad circuit board, or a glass substrate by transferring the layer via lamination.
- the quantity applied (coat thickness) and the nature of the substrate (layer support) are dependent on the desired field of application.
- the range of coat thicknesses generally comprises values from about 0.1 ⁇ to more than 100 ⁇ , for example 0.1 ⁇ to 1 cm, preferably 0.5 ⁇ to 1000 ⁇ .
- the solvent is removed, generally by drying, to leave an essentially dry resist film of the photoresist on the substrate.
- the photosensitivity of the novel compositions can extend in general from about 150 nm to 600 nm, for example 190-600 nm, (UV-vis region).
- Suitable radiation is pre- sent, for example, in sunlight or light from artificial light sources. Consequently, a large number of very different types of light sources are employed. Both point sources and arrays ("lamp carpets”) are suitable.
- Examples are carbon arc lamps, xenon arc lamps, low-, medium-, high- and super high- pressure mercury lamps, possibly with metal hal- ide dopes (metal-halogen lamps), microwave-stimulated metal vapour lamps, excimer lamps, superactinic fluorescent tubes, fluorescent lamps, argon incandescent lamps, electronic flashlights, photographic flood lamps, light emitting diodes (LED, OLED), electron beams and X-rays.
- the distance between the lamp and the substrate to be exposed in accordance with the invention may vary depending on the intended applica- tion and the type and output of lamp, and may be, for example, from 2 cm to 150 cm.
- Laser light sources for example excimer lasers, such as F 2 excimer lasers at 157 nm exposure, KrF excimer lasers for exposure at 248 nm and ArF excimer lasers for exposure at 193 nm are also suitable. Lasers in the visible region can also be employed.
- imagewise exposure includes both, exposure through a photomask comprising a predetermined pattern, for example a slide, a chromium mask, a stencil mask or a reticle, as well as exposure by means of a laser or light beam, which for example is moved under computer control over the surface of the coated substrate and in this way produces an image.
- Suitable UV laser exposure systems for the purpose are, for example, provided by Etec and Orbotech (DP-100TM DIRECT IMAGING SYSTEM).
- Other examples of laser light sources are, for example excimer lasers, such as F 2 excimer lasers at 157 nm exposure, KrF excimer lasers for exposure at 248 nm and ArF excimer lasers for exposure at 193 nm.
- solid state UV lasers e.g. Gemini from ManiaBarco, DI-2050 from PENTAX
- violet laser diodes with 405 nm output DI-2080, DI-PDP from PENTAX
- Lasers in the visible region can also be employed.
- the computer-controlled irradiation can also be achieved by electron beams.
- masks made of liquid crystals that can be addressed pixel by pixel to generate digital images, as is, for example, described by A. Bertsch, J.Y. Jezequel, J.C. Andre in Journal of Photochemistry and Photobiology A: Chemistry 1997, 107, p. 275-281 and by K.-P. Nicolay in Offset Printing 1997, 6, p. 34-37.
- thermal treatment for a short time.
- a thermal post bake can be performed to harden the composition and to remove all trac- es of solvents.
- the temperatures employed are generally 50-250°C, preferably 80- 220°C; the duration of the thermal treatment is in general between 0.25 and 60 minutes.
- the invention therefore also provides a process for the photopolymerization of com- pounds containing ethylenically unsaturated double bonds, i.e. monomeric, oligomeric or polymeric compounds containing at least one ethylenically unsaturated double bond, which comprises adding to these compounds at least one photoinitiator of the formula I or II as described above and irradiating the resulting composition with electromagnetic radiation, in particular light of the wavelength 150 to 600 nm, in particular 190-600 nm, with electron beam, or with X-rays.
- electromagnetic radiation in particular light of the wavelength 150 to 600 nm, in particular 190-600 nm, with electron beam, or with X-rays.
- the invention further provides a coated substrate which is coated on at least one surface with a composition as described above.
- a coated substrate as described above is subjected to imagewise exposure and then the unexposed portions are removed with a developer.
- Imagewise exposure may be effected by irradiating through a mask or by means of a laser or electron beam as al- ready described above.
- laser beam exposure already mentioned above.
- the compounds of the invention have a good thermal stability, low volatility, good storage stability and high solubility, and are also suitable for photopolymerisations in the presence of air (oxygen). Further, they cause only low yellowing in the compositions after photopolymerization.
- OE-2 is prepared according to the method as described in example 1 except using the corresponding acid chloride.
- the structure and physical data are collected in the following table 1.
- OS-3 is prepared according to the method as described in example 1 except using the corresponding acid chloride and 2-hydroxy-1-naphthaldehyde instead of salicylalde- hyde.
- the structure and physical data are collected in the following table 1.
- OE-4 is prepared according to the method as described in example 1 except using di- phenylether instead of diphenylsulfide.
- the structure and physical data are collected in the following table 1.
- IM-6 is converted to OE-5 according to the method as described in example 1.4.
- the corresponding physical data are collected in the following table 1.
- the compounds OE6-OE11 are prepared according to the method as described in example 1. The structures and physical data are collected in table 1.
- oxime ester compounds OE12-OE31 and OE33-OE73 are prepared according to the method as described in example 1 using the corresponding ketone for oximation followed ba esterification.
- the compound OE32 is prepared according to the method as described in example 1 via diketone (IM-7) and oxime (IM-8). The crude product is purified by recrystallization
- oxime EZ isomers (IM-8) is purified by colomun chromatography, giving a single component of oxime isomer E(IM-9) and Z(IM-10).
- OE74 and OE75 are prectively:
- oxime ester compounds are formed in E/Z isomeric mixtures. Only in single cases a differentiation and separation of said forms is indicated.
- a photocurable composition for a sensitivity test is prepared by mixing the following components:
- DPHA dipentaerythritol hexaacrylate
- compositions are applied to an aluminum plate using an electric applicator with a wire wound bar.
- the solvent is removed by heating at 80 °C for 10 minutes in a convection oven.
- the thickness of the dry film is approximately 2 ⁇ .
- a standardized test negative film with 21 steps of different optical density (Stouffer step wedge) is placed with an air gap of around 300 ⁇ between the film and the resist.
- a glass plate is placed over the negative film to fix the masks with 21 steps.
- Exposure is carried out using a 250 W super high pressure mercury lamp (USHIO, USH-250BY) at a distance of 20 cm.
- a total exposure dose measured by an optical power meter (USHIO, UNIMETER UIT-150-A with UVD-S365 detector) on the glass plate is 250mJ/cm 2 .
- the exposed film is developed with an alkaline solution (5 % aqueous solution of DL-A4, Yokohama Yushi) for 120 sec. at 28 °C by using a spray type developer (AD-1200, Takizawa Sangyo).
- the sensitivity of the initiator used is characterized by indicating the highest number of the step remained (i.e. polymerized) after developing. The higher the number of steps, the more sensitive is the initiator tested. The results are listed in table 2.
- the compounds according to the invention show higher photosen- sitivity than the comparative compound.
- Sensitivity Test B A photocurable composition for a sensitivity test is prepared by mixing the following components:
- DPHA 25.3 parts by weight multifunctional acrylate
- compositions are applied to a silicon wafer using a spincoater.
- the solvent is removed by heating at 80°C for 10 minutes in a convection oven.
- the thickness of the dry film is approximately 2 ⁇ .
- a standardized test negative film with 30 steps of different optical density (FUJI FILM Imaging Systems, Gray step chart) is placed with an air gap of around 300 ⁇ between the film and the resist.
- a silicon wafer is placed over the negative film to fix the masks with 30 steps. Exposure is carried out using a 250 W super high pressure mercury lamp (USHIO, USH-250BY) at a distance of 20 cm.
- a total exposure dose measured by an optical power meter (USHIO, UNIMETER UIT-150-A with UVD-S365 detector) on the silicon wafer is 150mJ/cm 2 .
- the exposed film is developed with an alkaline solution (5 % aqueous solution of DL-A4, Yokohama Yushi) for 60 sec. at 28 °C by using a spray type developer (AD-1200, Takizawa Sangyo).
- the necessary UV dose is corresponded to UV dose of full curing (i.e. the pattern is not dissolved with the alkaline solution) after developing.
- the smaller the value of the dose the more sensitive is the tested initiator.
- the results are listed in table 3.
- OE-R1 is Example 6 as disclosed in WO04/050653.
- the compounds according to the invention show higher photosensitivity than the comparative compound.
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Abstract
Description
Claims
Priority Applications (6)
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KR1020167006022A KR102282647B1 (en) | 2013-09-10 | 2014-09-08 | Oxime ester photoinitiators |
JP2016542414A JP6530410B2 (en) | 2013-09-10 | 2014-09-08 | Oxime ester photoinitiator |
CN201480049636.3A CN105531260B (en) | 2013-09-10 | 2014-09-08 | Oxime ester photoinitiator |
US14/917,508 US9957258B2 (en) | 2013-09-10 | 2014-09-08 | Oxime ester photoinitiators |
EP14844439.1A EP3044208B1 (en) | 2013-09-10 | 2014-09-08 | Oxime ester photoinitiators |
US15/918,512 US10793555B2 (en) | 2013-09-10 | 2018-03-12 | Oxime ester photoinitiators |
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US14/917,508 A-371-Of-International US9957258B2 (en) | 2013-09-10 | 2014-09-08 | Oxime ester photoinitiators |
US15/918,512 Continuation US10793555B2 (en) | 2013-09-10 | 2018-03-12 | Oxime ester photoinitiators |
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US (2) | US9957258B2 (en) |
EP (1) | EP3044208B1 (en) |
JP (1) | JP6530410B2 (en) |
KR (1) | KR102282647B1 (en) |
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EP3044208A4 (en) | 2017-08-09 |
TW201518275A (en) | 2015-05-16 |
US20160214966A1 (en) | 2016-07-28 |
KR20160053927A (en) | 2016-05-13 |
US9957258B2 (en) | 2018-05-01 |
KR102282647B1 (en) | 2021-07-28 |
CN105531260B (en) | 2019-05-31 |
EP3044208B1 (en) | 2021-12-22 |
US10793555B2 (en) | 2020-10-06 |
EP3044208A1 (en) | 2016-07-20 |
JP6530410B2 (en) | 2019-06-12 |
US20180208583A1 (en) | 2018-07-26 |
TWI639584B (en) | 2018-11-01 |
CN105531260A (en) | 2016-04-27 |
JP2016531926A (en) | 2016-10-13 |
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