WO2013190913A1 - 活性エネルギー線硬化性組成物、その硬化物及び用途 - Google Patents
活性エネルギー線硬化性組成物、その硬化物及び用途 Download PDFInfo
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- WO2013190913A1 WO2013190913A1 PCT/JP2013/062486 JP2013062486W WO2013190913A1 WO 2013190913 A1 WO2013190913 A1 WO 2013190913A1 JP 2013062486 W JP2013062486 W JP 2013062486W WO 2013190913 A1 WO2013190913 A1 WO 2013190913A1
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- active energy
- energy ray
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- PPNFZINGHDKAMR-UHFFFAOYSA-N CCC(CC)([NH+](C)[O-])OC Chemical compound CCC(CC)([NH+](C)[O-])OC PPNFZINGHDKAMR-UHFFFAOYSA-N 0.000 description 1
- XZCHXODTLDCEMK-UHFFFAOYSA-N CCC1(COC1)NOC Chemical compound CCC1(COC1)NOC XZCHXODTLDCEMK-UHFFFAOYSA-N 0.000 description 1
- ZGHOMXIHFUEUPF-UHFFFAOYSA-N CCC1(COC1)[N]#C Chemical compound CCC1(COC1)[N]#C ZGHOMXIHFUEUPF-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
- C08G65/16—Cyclic ethers having four or more ring atoms
- C08G65/18—Oxetanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/22—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/322—Pigment inks
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
- C09D171/02—Polyalkylene oxides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
Definitions
- the present invention relates to an active energy ray-curable composition that can be used as, for example, a printing ink such as an ink-jet ink, an ultraviolet curable coating, and the like, and can obtain a cured product having excellent adhesion, and the cured product and use thereof.
- a printing ink such as an ink-jet ink, an ultraviolet curable coating, and the like
- a curable composition of a type that is cured by irradiation with an active energy ray such as ultraviolet rays is excellent in environmental performance in terms of not using an organic solvent, and is excellent in productivity because of its high curing speed.
- an active energy ray-curable composition is often a radical polymerization system using (meth) acrylate or the like, but this radical polymerization system is susceptible to polymerization inhibition by oxygen, and has a drawback that volume shrinkage after polymerization is large. there were.
- the cationic polymerization system using an oxetane compound, a vinyl ether compound, an epoxy compound, etc. there are few defects as seen in the radical polymerization system.
- a photocationic curable composition is disclosed in Patent Document 1 as a curable composition of this type.
- This photocationic curable composition contains an epoxy group-containing silane coupling agent and a photocationic polymerization initiator.
- This photocationic curable composition is further mixed with a cation reactive compound other than the epoxy group-containing silane coupling agent.
- a cation-reactive compound an epoxy compound or an oxetane compound is used.
- the oxetane compound which is a cation-reactive compound specifically, xylylenebisoxetane and di [1-ethyl (3-oxetanyl)] methyl ether Is used.
- xylylenebisoxetane and di [1-ethyl (3-oxetanyl)] methyl ether Is used.
- the adhesion to glass is insufficient and the adhesion after immersion in hot water is also low. Is also low.
- the adhesiveness of the cured product to the glass is considered to be insufficient because the oxetane compound does not have a functional group that sufficiently enhances the adhesiveness.
- the polymer obtained by cationic polymerization has a large free volume (void between polymer chains). For this reason, when the cationic polymer is immersed in water, water easily enters the polymer. As a result, it is considered that the adhesion of the cationic polymer to the object decreases.
- the present invention has been made paying attention to the problems of the prior art as described above, and the object is to improve the adhesion of the cured product and to prevent the cured product from falling off and peeling off. It is providing the active energy ray-curable composition which can do, its hardened
- p represents an integer of 1 to 10.
- the active energy ray-curable composition according to claim 2 is characterized in that, in the invention according to claim 1, the silane coupling agent is a compound represented by the following general formula (3).
- R is methyl group or ethyl group
- n is 0, 1 or 2
- X is hydrogen atom, methyl group, ethyl group, vinyl group, allyl group, (meth) acryloyl group, glycidyl group, 3,4-epoxycyclohexyl Or an organic group having a (3-ethyloxetanyl) methyl group.
- the active energy ray-curable composition according to claim 3 is the invention according to claim 2, wherein X in the general formula (3) is the following general formula (4), (5), (6) or (7 It is characterized by being an organic group represented by.
- Y is an alkylene group having 1 to 3 carbon atoms
- Z is an oxygen atom or a divalent organic group having an organopolysiloxane represented by the following general formula (8)
- V is a hydrogen atom, a methyl group, an ethyl group, It represents a vinyl group, an allyl group, a (meth) acryloyl group, a glycidyl group, a 3,4-epoxycyclohexyl group or a (3-ethyloxetanyl) methyl group.
- Q is independently an alkoxy group having 1 to 4 carbon atoms or an alkyl group having 1 to 4 carbon atoms, and m is an integer of 1 to 10.
- the active energy ray-curable composition according to claim 4 is the invention according to any one of claims 1 to 3, wherein the silane coupling agent is ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -Glycidoxypropyltriethoxysilane, epoxycyclohexylethyltrimethoxysilane, alkoxysilane represented by the following general formula (9) and 3-ethyl-3-[[3- (triethoxysilyl) propoxy] methyl] oxetane It is at least one kind selected from.
- the silane coupling agent is ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -Glycidoxypropyltriethoxysilane, epoxycyclohexylethyltrimethoxysilane, alkoxysilane represented by the following general formula (9) and 3-ethyl-3-[[3- (triethoxysilyl) propoxy] methyl] ox
- R 1 [O—Si (OR 1 ) 2 —] r —O—R 1 (9)
- R 1 represents a methyl group or an ethyl group, and r represents an integer of 1 to 10.
- the active energy ray-curable composition according to claim 5 is the invention according to any one of claims 1 to 4, wherein the silicon content in the silane coupling agent is active energy as silica (SiO 2 ). It is characterized by being contained in the linear curable composition in an amount of 1 to 21% by mass.
- the active energy ray-curable composition according to claim 6 further includes an organic pigment or an inorganic pigment in the invention according to any one of claims 1 to 5.
- the cured product according to claim 7 is obtained by irradiating the active energy ray-curable composition according to any one of claims 1 to 6 with an active energy ray and curing.
- the ink-jet ink according to claim 8 is composed of the active energy ray-curable composition according to claim 6.
- the printed matter according to claim 9 is characterized in that the ink-jet ink according to claim 8 is applied to the surface of the printing material and is cured by irradiation with active energy rays.
- an oxetane alcohol represented by the structural formula (1) or (2), a silane coupling agent, and a photoacid generator are contained as active ingredients.
- an active energy ray curable composition is irradiated with, for example, ultraviolet rays as an active energy ray, a cured product is generated by cationic polymerization.
- the oxetane alcohol has a hydroxyl group, and the hydroxyl group remains in the cured product after cationic polymerization, and contributes to an improvement in adhesion to the object. Furthermore, the obtained cationic polymer has a small free volume, and water penetration into the inside thereof is suppressed. For this reason, even if water acts on the cured product, it is difficult to be affected by the water, and adhesion can be maintained.
- the active energy ray-curable composition of the present invention it is possible to improve the adhesion of the cured product and to suppress the falling off and peeling of the cured product.
- the active energy ray-curable composition of the present embodiment contains an oxetane alcohol represented by the following structural formula (1) or (2), a silane coupling agent, and a photoacid generator as active ingredients.
- p represents an integer of 1 to 10.
- This active energy ray-curable composition is used as an inkjet ink or the like, and is cured rapidly by irradiation with active energy rays such as ultraviolet rays to produce a cured product.
- This oxetane alcohol is a compound represented by the structural formula (1) or (2).
- the oxetane alcohol represented by the structural formula (1) is 3-ethyl-3-hydroxymethyloxetane.
- the oxetane alcohol represented by the structural formula (2) is a compound having a repeating unit of the structural formula (2) between the methylene group and the hydroxyl group of the oxetane alcohol represented by the structural formula (1).
- p in the structural formula (2) is an integer greater than 10
- the viscosity of the oxetane alcohol increases, the cationic polymerizability decreases, the strength of the cured product decreases, or the adhesion of the cured product decreases.
- This p is preferably an integer of 1 to 5 from the viewpoint that the strength of the cured product can be sufficiently exhibited.
- the blending amount of oxetane alcohol in the active energy ray-curable composition is preferably 10 to 90% by mass.
- the blending amount of oxetane alcohol is less than 10% by mass, the adhesiveness of the cured product tends to decrease, which is not preferable.
- the blending amount of other components such as a silane coupling agent is reduced, and the crosslinkability is lowered.
- a silane coupling agent is a compound for forming a crosslinked structure in the cured product of the active energy ray-curable composition. This silane coupling agent is a compound having a hydrolyzable group having affinity and reactivity with an inorganic material and an organic functional group chemically bonded to the organic material, and is represented by the following general formula (3) Is preferred.
- R is methyl group or ethyl group
- n is 0, 1 or 2
- X is hydrogen atom, methyl group, ethyl group, vinyl group, allyl group, (meth) acryloyl group, glycidyl group, 3,4-epoxycyclohexyl Or an organic group having a (3-ethyloxetanyl) methyl group.
- X in the general formula (3) is an organic group represented by the following general formula (4), (5), (6) or (7).
- Y is an alkylene group having 1 to 3 carbon atoms
- Z is an oxygen atom or a divalent organic group having an organopolysiloxane represented by the following general formula (8)
- V is a hydrogen atom, a methyl group, an ethyl group, It represents a vinyl group, an allyl group, a (meth) acryloyl group, a glycidyl group, a 3,4-epoxycyclohexyl group or a (3-ethyloxetanyl) methyl group.
- Q is independently an alkoxy group having 1 to 4 carbon atoms or an alkyl group having 1 to 4 carbon atoms, and m is an integer of 1 to 10.
- silane coupling agent examples include ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -glycidoxypropyltriethoxysilane, epoxycyclohexylethyltrimethoxysilane, and alkoxy represented by the following general formula (9). And at least one selected from silane and 3-ethyl-3-[[3- (triethoxysilyl) propoxy] methyl] oxetane.
- R 1 [O—Si (OR 1 ) 2 —] r —O—R 1 (9)
- R 1 represents a methyl group or an ethyl group, and r represents an integer of 1 to 10.
- the silicon content in the silane coupling agent is preferably 1 to 21% by mass in the active energy ray-curable composition as silica (SiO 2 ).
- the silicon content is less than 1% by mass as silica, the crosslinkability of the active energy ray-curable composition is lowered, and a sufficient crosslink density cannot be obtained in the cured product, which is not preferable.
- the amount is more than 21% by mass, it is not preferable because the resin film curls when the active energy ray-curable composition is applied to the resin film.
- a photoacid generator (photocation polymerization initiator) is a compound capable of generating a substance that initiates cationic polymerization upon irradiation with active energy rays.
- the photoacid generator is blended in the active energy ray-curable composition according to a conventional method, but is blended in the active energy ray-curable composition in the range of about 0.1 to 10% by mass.
- a salt of an aromatic onium compound, a sulfonated product, a halide, an iron allene complex, and the like are used, and a salt of an aromatic onium compound is preferable from the viewpoint of cationic polymerization initiation ability.
- the aromatic onium salt include B (C 6 F 5 ) 4 ⁇ , PF 6 ⁇ , AsF 6 ⁇ , SbF 6 ⁇ , CF 3 SO 3 of aromatic onium compounds such as diazonium, ammonium, iodonium, sulfonium, and phosphonium. - salt, and the like.
- the aromatic onium compound the following compounds are used.
- a cationically polymerizable compound is blended as necessary.
- the cationic polymerizable compound include an epoxy compound, a vinyl ether compound, and an oxetane compound.
- Examples of the epoxy compound include aromatic epoxides, alicyclic epoxides, and aliphatic epoxides.
- aromatic epoxide di- or polyglycidyl ether obtained by reaction with a polyhydric phenol having at least one aromatic ring, an alkylene oxide adduct thereof, or epichlorohydrin is used.
- examples thereof include di- or polyglycidyl ethers of bisphenol A or alkylene oxide adducts thereof, di- or polyglycidyl ethers of hydrogenated bisphenol A or alkylene oxide adducts thereof, and novolak type epoxy resins.
- examples of the alkylene oxide include ethylene oxide and propylene oxide.
- the alicyclic epoxide contains cyclohexene oxide or cyclopentene oxide obtained by epoxidizing a compound having at least one cycloalkane ring such as cyclohexene ring or cyclopentene ring with an oxidizing agent such as hydrogen peroxide or peracid.
- a compound is used.
- an aliphatic polyhydric alcohol or an alkylene oxide adduct di- or polyglycidyl ether thereof is used.
- Examples thereof include polyglycidyl ethers of polyhydric alcohols, diglycidyl ethers of polyethylene glycol or alkylene oxide adducts thereof, and diglycidyl ethers of polyalkylene glycols such as diglycidyl ethers of polypropylene glycol or alkylene oxide adducts thereof.
- examples of the alkylene oxide include ethylene oxide and propylene oxide.
- aromatic epoxides or alicyclic epoxides are preferable from the viewpoint of curability, and alicyclic epoxides are more preferable.
- the said epoxide can be used selecting 1 type (s) or 2 or more types suitably.
- vinyl ether compound examples include ethylene glycol divinyl ether, diethylene glycol divinyl ether, triethylene glycol divinyl ether, propylene glycol divinyl ether, dipropylene glycol divinyl ether, butanediol divinyl ether, hexanediol divinyl ether, cyclohexanedimethanol divinyl ether, Di- or trivinyl ether compounds such as methylolpropane trivinyl ether, ethyl vinyl ether, n-butyl vinyl ether, isobutyl vinyl ether, octadecyl vinyl ether, cyclohexyl vinyl ether, hydroxybutyl vinyl ether, 2-ethylhexyl vinyl ether, cyclohexane dimethanol monovinyl ether, n Propyl vinyl ether, isopropyl vinyl ether, isopropenyl ether -o- propylene carbon
- vinyl ether compounds di- or trivinyl ether compounds are preferable and divinyl ether compounds are more preferable from the viewpoints of curability and adhesion.
- the said vinyl ether compound can be used selecting 1 type (s) or 2 or more types suitably.
- the oxetane compound is a compound having an oxetane ring, and is a compound other than the oxetane alcohol represented by the structural formula (1) or (2).
- the oxetane compound is preferably an oxetane compound having 1 to 4 oxetane rings.
- oxetane compound examples include 3-ethyl-3-[[((3-ethyloxetane-3-yl) methoxy] methyl] oxetane, 3-ethyl-3-hydroxymethyloxetane, 4,4′-bis [( 3-ethyl-3-oxetanyl) methoxymethyl] biphenyl, 3- (meth) allyloxymethyl-3-ethyloxetane, (3-ethyl-3-oxetanylmethoxy) methylbenzene, (3-ethyl-3-oxetanylmethoxy) Benzene, 4-fluoro- [1- (3-ethyl-3-oxetanylmethoxy) methyl] benzene, 4-methoxy- [1- (3-ethyl-3-oxetanylmethoxy) methyl] benzene, [1- (3- Ethyl-3-oxetanylmethoxy
- a pigment for coloring a desired color can be blended according to a conventional method.
- a known organic pigment or inorganic pigment is used.
- Organic pigments include soluble azo pigments such as lake red C and permanent red 2B, insoluble azo pigments such as first yellow and naphthol red, condensed azo pigments such as chromophthal yellow and chromophthal red, and phthalocyanines such as phthalocyanine blue and phthalocyanine green Examples thereof include condensed polycyclic pigments such as pigments, thioindigo and perylene red.
- Inorganic pigments include oxide pigments such as cobalt blue, zinc white, and light red, hydroxide pigments such as viridan and alumina white, sulfide pigments such as cadmium yellow and cadmium red, ultramarine, talc, and white carbon. Examples thereof include silicate pigments, silver white, and carbonate pigments such as calcium carbonate.
- a dispersant such as a higher fatty acid salt, an alkyl sulfate, or an alkyl sulfonate can be used.
- the active energy ray-curable composition configured as described above can be used as an ink such as an inkjet ink.
- the viscosity is preferably 5 to 30 mPa ⁇ s, for example, so that the ejection from the ink jet head is good and the penetration into the recording paper is suppressed and good printing characteristics are obtained. Then, this ink is applied to the surface of the printing material, and the printed material is obtained by irradiating and curing the active energy ray.
- the active energy ray-curable composition can be used as an ultraviolet curable coating material having good adhesion.
- the aforementioned active energy ray-curable composition can be cured by irradiating active energy rays under predetermined conditions. For example, after applying an active energy ray-curable composition to the surface of an object such as glass, the active energy ray-curable composition is cured by irradiating the active energy ray to form a coating (cured product). .
- the active energy ray an ultraviolet ray, an electron beam or the like is used, and the active energy ray is irradiated with an irradiation amount (light quantity) within a predetermined range.
- ultraviolet rays When ultraviolet rays are used as the active energy rays, it is preferable to use a mercury lamp, a metal halide lamp or the like, and it is desirable to irradiate ultraviolet rays with an integrated light quantity of 100 to 10000 mJ / cm 2 .
- the irradiation amount is 1 to 20 Mrad at an acceleration voltage of 150 to 250 keV.
- the active energy ray-curable composition when the active energy ray-curable composition is irradiated with active energy rays, the energy of the active energy rays is absorbed by the photoacid generator, and positive ions (cations) are generated.
- the oxygen atom constituting the oxetane ring of oxetane alcohol has polarity and is negatively charged.
- the positive ion generated by the photoacid generator approaches the negatively charged oxygen atom of the oxetane ring, and the polymerization starts when the oxygen atom becomes an oxonium ion, and another negatively charged oxygen atom is By attacking, the oxetane ring is opened and cationic polymerization proceeds.
- the alkoxy group (OR) and the organic group (X) of the silane coupling agent undergo a crosslinking reaction, and a cured product having a three-dimensional crosslinked structure is formed.
- the film (cured product) obtained by applying the active energy ray-curable composition to the object and irradiating the active energy ray hydroxyl groups of oxetane alcohol remain, and the hydroxyl group causes the object.
- Adhesive strength of the coating with respect to is increased.
- the cationic polymer that forms the coating has a small free volume, the penetration of water into the inside is suppressed. As a result, even when the coating is exposed to water, the adhesion of the coating to the object is maintained.
- the active energy ray-curable composition of the present embodiment the oxetane alcohol, a silane coupling agent, and a photoacid generator are contained as active ingredients. For this reason, when an active energy ray is irradiated to an active energy ray curable composition, hardened
- the hydroxyl group of the oxetane alcohol remains in the cured product after cationic polymerization, and contributes to an improvement in adhesion to the object. Furthermore, the obtained cationic polymer has a small free volume, and water penetration into the inside thereof is suppressed. For this reason, even if water acts on the cured product, it is difficult to be affected by the water, and adhesion can be maintained.
- the silane coupling agent is a compound represented by the general formula (3). For this reason, the crosslinking reaction based on a silane coupling agent can be advanced smoothly. Furthermore, X in the general formula (3) is an organic group represented by the general formula (4), (5), (6) or (7).
- the silane coupling agent includes ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -glycidoxypropyltriethoxysilane, epoxycyclohexylethyltrimethoxysilane, and alkoxysilane represented by the general formula (9). And 3-ethyl-3-[[3- (triethoxysilyl) propoxy] methyl] oxetane. In this case, the crosslinking reaction by the silane coupling agent can be further promoted.
- the silicon content in the silane coupling agent is contained in the active energy ray-curable composition in an amount of 1 to 21% by mass as silica (SiO 2 ).
- the active energy ray-curable composition contains an organic pigment or an inorganic pigment. Accordingly, the cured product of the active energy ray-curable composition can be easily colored into a desired color.
- the cured product is formed by irradiating an active energy ray-curable composition with active energy rays and curing. Since a cured product is obtained by irradiating active energy rays, a cured product can be obtained easily and quickly.
- the inkjet ink is composed of an active energy ray-curable composition containing an organic pigment or an inorganic pigment.
- an inkjet ink can be colored and the printed matter printed with the inkjet ink can be colored to a desired color.
- the printed material is obtained by applying an inkjet ink to the surface of a material to be printed, and irradiating with an active energy ray to be cured. Therefore, a printed matter can be obtained easily and promptly by application of inkjet ink and irradiation with active energy rays.
- OXA 3-ethyl-3-hydroxymethyloxetane [compound of the above structural formula (1)]
- Silane coupling agent GLYMO: ⁇ -glycidoxypropyltrimethoxysilane
- KBM303 Epoxycyclohexylethyltrimethoxysilane
- n 1 in the general formula (3)
- X is an organic group represented by the general formula (5)
- Z is a silane in which Q is a methoxy group and m is 4 in the general formula (8)
- Coupling agent manufactured by Colcoat, methyl silicate 51
- PAG diphenyl (4-phenylthio) phenylsulfonium hexafluorophosphate [manufactured by San Apro Co., Ltd., CPI-100P]
- Inorganic pigment pigment red 101 (CAS: 1309-37-1)
- Organic pigment pigment red 122 (CAS: 980-26-7) (Examples 1 to 11 and Comparative Examples 1 to 6)
- Each of the above raw materials was blended in the blending amounts shown in Table 1 to prepare an active energy ray curable composition.
- the compounding amount in Table 1 represents parts by mass.
- the obtained active energy ray-curable composition was applied onto a glass plate, and the active energy ray-curable composition was cured by irradiating with ultraviolet rays having an illuminance of 150 mW using a high-pressure mercury lamp.
- the curable composition of Comparative Example 5 is a curable composition comprising an oxetane compound (DOX), a silane coupling agent, and a photoacid generator (the composition of the invention described in Japanese Patent Application Laid-Open No. 2011-153255).
- DOX oxetane compound
- silane coupling agent silane coupling agent
- a photoacid generator the composition of the invention described in Japanese Patent Application Laid-Open No. 2011-153255.
- the adhesion and the adhesion after immersion in hot water were poor.
- the oxetane compound (DOX) is not an oxetane alcohol having a hydroxyl group but an ether compound, so that there is no functional group for improving adhesion, the free volume of the cationic polymer is large, and water is contained in the polymer. This is presumed to be because it became easier to penetrate.
- Example 12 to 14 In Examples 12 to 14, the active energy ray-curable compositions of Examples 1, 3 and 6 were used as inkjet inks. And the discharge property, droplet shape, sclerosis
- Inkjet ink was not ejected from the inkjet head, or ejection was unstable. (Droplet shape) The shape of the inkjet ink droplets was visually evaluated according to the following criteria.
- X The droplet was indefinite and defective. (Curable) Curability was measured by irradiating with ultraviolet rays having an illuminance of 150 mW.
- X 1 dot or more peeled.
- oxetane alcohol having the structure shown below.
- the structure of the oxetane alcohol was confirmed with an infrared absorption spectrum analyzer [FT / IR-410 manufactured by JASCO Corporation].
- active energy ray-curable compositions were obtained with the blending amounts shown in Table 3.
- hardenability, adhesiveness, and the adhesiveness after immersion in warm water were measured similarly to the said Example 1, and those results were shown in Table 3.
- active energy ray-curable compositions were obtained with the blending amounts shown in Table 3.
- hardenability, adhesiveness, and the adhesiveness after immersion in warm water were measured similarly to the said Example 1, and those results were shown in the said Table 3.
- Example 16 As shown in Table 3, the active energy ray-curable composition of Example 16 had good results in all of curability, adhesion, and adhesion after hot water immersion.
- At least one of oxetane alcohol, silane coupling agent and photoacid generator forming the active energy ray-curable composition may be composed of a plurality of compounds. Moreover, you may mix
- An active energy ray-curable composition may be blended with an adhesion-imparting agent such as polysiloxane to further enhance the adhesion.
- An active energy ray-curable composition can be blended with a light stabilizer, an antioxidant, an antistatic agent, or the like, if necessary.
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Abstract
Description
但し、Rはメチル基又はエチル基、nは0、1又は2、Xは水素原子、メチル基、エチル基、ビニル基、アリル基、(メタ)アクリロイル基、グリシジル基、3,4-エポキシシクロヘキシル基又は(3-エチルオキセタニル)メチル基を有する有機基を表す。
-Z-V ・・・(5)
-Y-V ・・・(6)
-V ・・・(7)
但し、Yは炭素数1~3のアルキレン基、Zは酸素原子又は下記一般式(8)で表されるオルガノポリシロキサンを有する二価の有機基、Vは水素原子、メチル基、エチル基、ビニル基、アリル基、(メタ)アクリロイル基、グリシジル基、3,4-エポキシシクロヘキシル基又は(3-エチルオキセタニル)メチル基を表す。
但し、Qはそれぞれ独立に炭素数1~4のアルコキシ基又は炭素数1~4のアルキル基、mは1~10の整数を表す。
但し、R1はメチル基又はエチル基、rは1~10の整数を表す。
<オキセタンアルコール>
このオキセタンアルコールは、前記構造式(1)又は(2)で表される化合物である。構造式(1)で表されるオキセタンアルコールは、3-エチル-3-ヒドロキシメチルオキセタンである。
<シランカップリング剤>
シランカップリング剤は、活性エネルギー線硬化性組成物の硬化物に架橋構造を形成するための化合物である。このシランカップリング剤は、無機材料との親和性、反応性を有する加水分解基と、有機材料と化学結合する有機官能基とを有する化合物であり、下記一般式(3)で表される化合物が好ましい。
但し、Rはメチル基又はエチル基、nは0、1又は2、Xは水素原子、メチル基、エチル基、ビニル基、アリル基、(メタ)アクリロイル基、グリシジル基、3,4-エポキシシクロヘキシル基又は(3-エチルオキセタニル)メチル基を有する有機基を表す。
-Z-V ・・・(5)
-Y-V ・・・(6)
-V ・・・(7)
但し、Yは炭素数1~3のアルキレン基、Zは酸素原子又は下記一般式(8)で表されるオルガノポリシロキサンを有する二価の有機基、Vは水素原子、メチル基、エチル基、ビニル基、アリル基、(メタ)アクリロイル基、グリシジル基、3,4-エポキシシクロヘキシル基又は(3-エチルオキセタニル)メチル基を表す。
但し、Qはそれぞれ独立に炭素数1~4のアルコキシ基又は炭素数1~4のアルキル基、mは1~10の整数を表す。
但し、R1はメチル基又はエチル基、rは1~10の整数を表す。
<光酸発生剤>
光酸発生剤(光カチオン重合開始剤)は、活性エネルギー線の照射によりカチオン重合を開始させる物質を発生させることができる化合物である。光酸発生剤は常法に従って活性エネルギー線硬化性組成物に配合されが、活性エネルギー線硬化性組成物中に0.1~10質量%程度の範囲で配合される。
(カチオン重合性化合物)
その他の成分としては、カチオン重合性化合物が必要に応じて配合される。このカチオン重合性化合物としては、エポキシ化合物、ビニルエーテル化合物、オキセタン化合物等が挙げられる。
(顔料)
活性エネルギー線硬化性組成物には、所望の色に着色させるための顔料を常法に従って配合することができる。この顔料としては、周知の有機顔料又は無機顔料が用いられる。有機顔料としては、レーキレッドC、パーマネントレッド2B等の溶性アゾ顔料、ファーストイエロー、ナフトールレッド等の不溶性アゾ顔料、クロモフタルイエロー、クロモフタルレッド等の縮合アゾ顔料、フタロシアニンブルー、フタロシアニングリーン等のフタロシアニン顔料、チオインジゴ、ペリレンレッド等の縮合多環顔料等が挙げられる。
(1)本実施形態の活性エネルギー線硬化性組成物では、前記オキセタンアルコールと、シランカップリング剤と、光酸発生剤とが有効成分として含まれている。このため、活性エネルギー線硬化性組成物に活性エネルギー線が照射されると、カチオン重合によって硬化物が生成する。
(2)前記シランカップリング剤は、前記一般式(3)で表される化合物である。このため、シランカップリング剤に基づく架橋反応を円滑に進行させることができる。さらに、一般式(3)におけるXは、前記一般式(4)、(5)、(6)又は(7)で表される有機基である。具体的には、シランカップリング剤は、γ-グリシドキシプロピルトリメトキシシラン、γ-グリシドキシプロピルトリエトキシシラン、エポキシシクロヘキシルエチルトリメトキシシラン、前記一般式(9)で表されるアルコキシシラン及び3-エチル-3-[〔3-(トリエトキシシリル)プロポキシ〕メチル]オキセタンから選ばれる少なくとも一種である。この場合、シランカップリング剤による架橋反応を一層促進させることができる。
(3)前記シランカップリング剤中のケイ素分がシリカ(SiO2)として活性エネルギー線硬化性組成物中に1~21質量%含まれている。このため、活性エネルギー線硬化性組成物を薄い樹脂フィルムに塗布したとき、樹脂フィルムがカールすることなく、十分な厚さの被膜を形成することができる。
(4)前記活性エネルギー線硬化性組成物には、有機顔料又は無機顔料が含まれている。従って、活性エネルギー線硬化性組成物の硬化物を所望とする色に容易に着色することができる。
(5)前記硬化物は、活性エネルギー線硬化性組成物に活性エネルギー線を照射し、硬化してなるものである。活性エネルギー線を照射して硬化物が得られるため、簡易かつ迅速に硬化物を得ることができる。
(6)前記インクジェットインクは、有機顔料又は無機顔料を含む活性エネルギー線硬化性組成物により構成されている。このため、インクジェットインクを着色し、そのインクジェットインクにより印刷された印刷物を所望の色に着色させることができる。
(7)前記印刷物は、インクジェットインクを被印刷物表面に塗布し、活性エネルギー線を照射して硬化させてなるものである。従って、インクジェットインクの塗布と活性エネルギー線の照射により、印刷物を容易に、しかも速やかに得ることができる。
(オキセタンアルコール)
OXA:3-エチル-3-ヒドロキシメチルオキセタン〔前記構造式(1)の化合物〕
(シランカップリング剤)
GLYMO:γ-グリシドキシプロピルトリメトキシシラン
PAG:ジフェニル(4-フェニルチオ)フェニルスルホニウム・ヘキサフルオロホスフェート〔サンアプロ(株)製、CPI-100P〕
DOX:3-エチル-3-[〔(3-エチルオキセタン-3-イル)メトキシ〕メチル]オキセタン〔東亞合成(株)製、アロンオキセタンOXT-221〕
有機顔料:pigment red 122(CAS:980-26-7)
(実施例1~11及び比較例1~6)
上記の各原料を表1に示す配合量で配合して活性エネルギー線硬化性組成物を調製した。表1における配合量は質量部を表す。
(硬化性)
◎:紫外線の積算光量250mJで硬化したときに硬化物の表面にタックなし。
(密着性)
JIS K5400に準拠して測定した。前記硬化物に2mm角の碁盤目を25マス形成して剥離試験を行い、密着性を判断した。
(温水浸漬後の密着性)
硬化物を70℃の温水に5分間浸漬した後、軽く拭き取り、前記と同様にして密着性を評価した。
(実施例12~14)
実施例12~14では、前記実施例1、3及び6の活性エネルギー線硬化性組成物をインクジェットインクとして使用した。そして、それらのインクジェットインクの吐出性、液滴形状、硬化性及び密着性を以下に示す方法で測定した。それらの結果を表2に示した。
(吐出性)
IJT社製(IJH-80)のインクジェットヘッドを用いて、インクジェットインクの吐出を行い、下記の基準で吐出性を評価した。
(液滴形状)
インクジェットインクの液滴の形状を目視により、下記の基準で評価した。
(硬化性)
照度150mWの紫外線を照射して硬化性を測定した。
(密着性)
インクジェットヘッドでインクジェットインクを吐出して25ドットを形成した後、紫外線を照射して硬化させ、密着性を測定した。すなわち、各ドットに粘着テープを貼って剥し、ドットが剥がれるか否かを測定した。
(実施例15)
下記に示す構造のオキセタンアルコール(OXA-1)〔前記構造式(2)においてp=1のオキセタンアルコール〕を次のようにして調製した。すなわち、コンデンサーを装備した200mlフラスコに、ε-カプロラクトン〔和光純薬(株)製、純度99質量%〕29.5g(0.258モル)、3-エチル-3-ヒドロキシメチルオキセタン〔東亞合成(株)製、アロンオキセタンOXT-101〕30.0g(0.258モル)、ブチル錫系化合物(モノブチル錫)〔日東化成(株)製、SCAT-24〕0.06gを投入し、撹拌しながら110℃で7時間反応させ、下記に示す構造のオキセタンアルコール(OXA-1)を得た。このオキセタンアルコールの構造確認は、赤外線吸収スペクトル分析装置〔日本分光(株)製のFT/IR-410〕にて行った。
(実施例16)
下記に示す構造のオキセタンアルコール(OXA-2)〔前記構造式(2)においてp=5のオキセタンアルコール〕を次のようにして調製した。すなわち、コンデンサーを装備した200mlフラスコに、ε-カプロラクトン〔和光純薬(株)製、純度99質量%〕49.1g(0.430モル)、3-エチル-3-ヒドロキシメチルオキセタン〔東亞合成(株)製、アロンオキセタンOXT-101〕10.0g(0.086モル)、ブチル錫系化合物(モノブチル錫)〔日東化成(株)製、SCAT-24〕0.06gを投入し、撹拌しながら110℃で7時間反応させ、下記に示す構造のオキセタンアルコール(OXA-2)を得た。このオキセタンアルコールの構造確認は、赤外線吸収スペクトル分析装置〔日本分光(株)製のFT/IR-410〕にて行った。
Claims (9)
- 前記シランカップリング剤は、下記一般式(3)で表される化合物であることを特徴とする請求項1に記載の活性エネルギー線硬化性組成物。
(RO)4-n-Si-Xn ・・・(3)
但し、Rはメチル基又はエチル基、nは0、1又は2、Xは水素原子、メチル基、エチル基、ビニル基、アリル基、(メタ)アクリロイル基、グリシジル基、3,4-エポキシシクロヘキシル基又は(3-エチルオキセタニル)メチル基を有する有機基を表す。 - 前記一般式(3)におけるXは、下記一般式(4)、(5)、(6)又は(7)で表される有機基であることを特徴とする請求項2に記載の活性エネルギー線硬化性組成物。
-Y-Z-V ・・・(4)
-Z-V ・・・(5)
-Y-V ・・・(6)
-V ・・・(7)
但し、Yは炭素数1~3のアルキレン基、Zは酸素原子又は下記一般式(8)で表されるオルガノポリシロキサンを有する二価の有機基、Vは水素原子、メチル基、エチル基、ビニル基、アリル基、(メタ)アクリロイル基、グリシジル基、3,4-エポキシシクロヘキシル基又は(3-エチルオキセタニル)メチル基を表す。
-O-〔Si(Q)2-O-〕m- ・・・(8)
但し、Qはそれぞれ独立に炭素数1~4のアルコキシ基又は炭素数1~4のアルキル基、mは1~10の整数を表す。 - 前記シランカップリング剤は、γ-グリシドキシプロピルトリメトキシシラン、γ-グリシドキシプロピルトリエトキシシラン、エポキシシクロヘキシルエチルトリメトキシシラン、下記の一般式(9)で表されるアルコキシシラン及び3-エチル-3-[〔3-(トリエトキシシリル)プロポキシ〕メチル]オキセタンから選ばれる少なくとも一種であることを特徴とする請求項1から請求項3のいずれか一項に記載の活性エネルギー線硬化性組成物。
R1-〔O-Si(OR1)2-〕r-O-R1 ・・・(9)
但し、R1はメチル基又はエチル基、rは1~10の整数を表す。 - 前記シランカップリング剤中のケイ素分がシリカ(SiO2)として活性エネルギー線硬化性組成物中に1~21質量%含まれていることを特徴とする請求項1から請求項4のいずれか一項に記載の活性エネルギー線硬化性組成物。
- さらに、有機顔料又は無機顔料を含有することを特徴とする請求項1から請求項5のいずれか一項に記載の活性エネルギー線硬化性組成物。
- 請求項1から請求項6のいずれか一項に記載の活性エネルギー線硬化性組成物に活性エネルギー線を照射し、硬化してなることを特徴とする硬化物。
- 請求項6に記載の活性エネルギー線硬化性組成物により構成されることを特徴とするインクジェットインク。
- 請求項8に記載のインクジェットインクを被印刷物表面に塗布し、活性エネルギー線を照射して硬化させてなることを特徴とする印刷物。
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- 2013-04-26 KR KR1020147023995A patent/KR20140111051A/ko active Application Filing
- 2013-04-26 CN CN201380016378.4A patent/CN104204034A/zh active Pending
- 2013-04-26 JP JP2013548520A patent/JP5475933B1/ja active Active
- 2013-04-26 US US14/380,777 patent/US9447294B2/en active Active
- 2013-04-26 KR KR1020157010467A patent/KR20150052347A/ko not_active Application Discontinuation
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JP2016199034A (ja) * | 2015-04-09 | 2016-12-01 | 日新製鋼株式会社 | 印刷材の製造方法 |
WO2017199896A1 (ja) * | 2016-05-16 | 2017-11-23 | 日新製鋼株式会社 | 印刷材の製造方法 |
WO2017199275A1 (ja) * | 2016-05-16 | 2017-11-23 | 日新製鋼株式会社 | 印刷材の製造方法 |
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Also Published As
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JPWO2013190913A1 (ja) | 2016-05-26 |
KR20140111051A (ko) | 2014-09-17 |
US20150030820A1 (en) | 2015-01-29 |
US9447294B2 (en) | 2016-09-20 |
CN104204034A (zh) | 2014-12-10 |
KR20150052347A (ko) | 2015-05-13 |
JP5475933B1 (ja) | 2014-04-16 |
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