WO2023054373A1 - 熱硬化性組成物及びその硬化物、光融解性組成物、並びに構造体の製造方法 - Google Patents
熱硬化性組成物及びその硬化物、光融解性組成物、並びに構造体の製造方法 Download PDFInfo
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- WO2023054373A1 WO2023054373A1 PCT/JP2022/035972 JP2022035972W WO2023054373A1 WO 2023054373 A1 WO2023054373 A1 WO 2023054373A1 JP 2022035972 W JP2022035972 W JP 2022035972W WO 2023054373 A1 WO2023054373 A1 WO 2023054373A1
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- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 description 1
- 125000001412 tetrahydropyranyl group Chemical group 0.000 description 1
- DDFYFBUWEBINLX-UHFFFAOYSA-M tetramethylammonium bromide Chemical compound [Br-].C[N+](C)(C)C DDFYFBUWEBINLX-UHFFFAOYSA-M 0.000 description 1
- RXMRGBVLCSYIBO-UHFFFAOYSA-M tetramethylazanium;iodide Chemical compound [I-].C[N+](C)(C)C RXMRGBVLCSYIBO-UHFFFAOYSA-M 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 1
- QLAGHGSFXJZWKY-UHFFFAOYSA-N triphenylborane;triphenylphosphane Chemical compound C1=CC=CC=C1B(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 QLAGHGSFXJZWKY-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- CMLWFCUAXGSMBB-UHFFFAOYSA-N tris(2,6-dimethoxyphenyl)phosphane Chemical compound COC1=CC=CC(OC)=C1P(C=1C(=CC=CC=1OC)OC)C1=C(OC)C=CC=C1OC CMLWFCUAXGSMBB-UHFFFAOYSA-N 0.000 description 1
- IQKSLJOIKWOGIZ-UHFFFAOYSA-N tris(4-chlorophenyl)phosphane Chemical compound C1=CC(Cl)=CC=C1P(C=1C=CC(Cl)=CC=1)C1=CC=C(Cl)C=C1 IQKSLJOIKWOGIZ-UHFFFAOYSA-N 0.000 description 1
- UYUUAUOYLFIRJG-UHFFFAOYSA-N tris(4-methoxyphenyl)phosphane Chemical compound C1=CC(OC)=CC=C1P(C=1C=CC(OC)=CC=1)C1=CC=C(OC)C=C1 UYUUAUOYLFIRJG-UHFFFAOYSA-N 0.000 description 1
- WXAZIUYTQHYBFW-UHFFFAOYSA-N tris(4-methylphenyl)phosphane Chemical compound C1=CC(C)=CC=C1P(C=1C=CC(C)=CC=1)C1=CC=C(C)C=C1 WXAZIUYTQHYBFW-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- CYDXJXDAFPJUQE-SYWGCQIGSA-L zinc;(e)-4-oxopent-2-en-2-olate Chemical compound [Zn+2].C\C([O-])=C/C(C)=O.C\C([O-])=C/C(C)=O CYDXJXDAFPJUQE-SYWGCQIGSA-L 0.000 description 1
- CHJMFFKHPHCQIJ-UHFFFAOYSA-L zinc;octanoate Chemical compound [Zn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O CHJMFFKHPHCQIJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/12—Polythioether-ethers
-
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/66—Mercaptans
-
- 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
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/62—Alcohols or phenols
- C08G59/621—Phenols
Definitions
- the present disclosure relates to a thermosetting composition and its cured product, a photofusible composition, and a method for producing a structure.
- Patent Document 1 discloses an image forming apparatus provided with a recording member having a photo-fusible resin layer made of a photo-fusible composition.
- the photofusible composition In conventional photofusible compositions, an organic solvent was required to remove the resin component that was melted by light irradiation. However, from the viewpoints of environment, safety, substrate damage, etc., the photofusible composition is required to be able to remove the resin component that is generated by being melted by light irradiation with a water-based solvent. Since the photofusible composition has such properties, it can be expected to be used in a wider range of applications.
- thermosetting composition that can be melted by light irradiation and can form a cured product (photofusible composition) that can remove the resin component generated by melting by light irradiation with a water-based solvent.
- the main purpose is to provide goods.
- thermosetting compositions contains a polythiol compound having a disulfide bond, a cyclic ether compound having a polyether chain and two or more cyclic ether groups, a curing accelerator, and a photoradical generator. do.
- a thermosetting composition it is possible to form a cured product (photo-fusible composition) that can be melted by light irradiation and that the resin component generated by melting by light irradiation can be removed with a water-based solvent. can be done.
- thermosetting composition when the thermosetting composition is heated, the polythiol compound and the cyclic ether compound react to obtain a cured product of the thermosetting composition having disulfide bonds. Then, by irradiating the obtained cured product with light, the photo-radical generator cleaves the disulfide bond (-S-S-) in the light-irradiated portion, and the molecular weight can be reduced. With the progress of such a low molecular weight, the elastic modulus of the relevant portion may be lowered, and the cured product may melt and become liquid (liquid state).
- the resin component generated by melting by light irradiation has many polyether chains or hydroxyl groups (derived from cyclic ether groups), it is presumed that it tends to show hydrophilicity, so it is removed with a water-based solvent. becomes possible.
- the cyclic ether compound is a compound having two cyclic ether groups and three or more cyclic ethers. It may contain a compound having a group.
- the cyclic ether group may be an oxirane group from the viewpoint of reactivity and availability.
- thermosetting composition may be a photofusible composition. According to the cured product of such a thermosetting composition, it can be melted by light irradiation, and the resin component generated by melting by light irradiation can be removed with a water-based solvent.
- the photofusible composition contains a reaction product of a polythiol compound having a disulfide bond, a cyclic ether compound having a polyether chain and two or more cyclic ether groups, and a photoradical generator. do. According to such a photo-fusible composition, it can be melted by light irradiation, and the resin component generated by melting by light irradiation can be removed with a water-based solvent.
- the method for producing the structure comprises a step of irradiating at least a part of a first structure made of the cured product of the thermosetting composition or the photofusible composition; and obtaining a second structure by developing the structure with an aqueous solvent.
- the present disclosure includes the thermosetting composition according to [1] to [3], the cured product of the thermosetting composition according to [4], the photofusible composition according to [5], and [6 ] to provide a method for manufacturing the structure.
- Thermosetting containing a polythiol compound having a disulfide bond, a cyclic ether compound having a polyether chain and having two or more cyclic ether groups, a curing accelerator, and a photoradical generator Composition.
- the thermosetting composition according to [1] which contains, as the cyclic ether compound, a compound having two cyclic ether groups and a compound having three or more cyclic ether groups.
- thermosetting composition capable of forming a cured product (photofusible composition) that can be melted by light irradiation and that can be removed with a water-based solvent from the resin component generated by the light irradiation. goods are provided.
- a cured product of a thermosetting composition that can be melted by light irradiation and a resin component generated by melting by light irradiation can be removed with an aqueous solvent and a photo-melting composition are provided. be done.
- methods of making structures using photofusible compositions are provided.
- step includes not only independent steps, but also if the intended action of the step is achieved even if it cannot be clearly distinguished from other steps.
- a numerical range indicated using “-” indicates a range including the numerical values described before and after "-" as the minimum and maximum values, respectively.
- each component in the composition refers to the content of the plurality of substances present in the composition when there are multiple substances corresponding to each component in the composition, unless otherwise specified. means total volume.
- the exemplified materials may be used singly or in combination of two or more.
- the upper limit or lower limit of the numerical range at one stage may be replaced with the upper limit or lower limit of the numerical range at another stage.
- the upper and lower limits of the numerical ranges may be replaced with the values shown in the examples.
- “A or B” may include either A or B, or may include both.
- the thermosetting composition of one embodiment has a polythiol compound having a disulfide bond (hereinafter sometimes referred to as "component (A)”), and a polyether chain, and two or more cyclic ether groups.
- component (A) a polythiol compound having a disulfide bond
- component (B) component a polythiol compound having a disulfide bond
- component (C) component a curing accelerator
- ( D) a photoradical generator
- Component (A) Polythiol Compound Having Disulfide Bonds
- Component (A) is a compound having disulfide bonds (-SS-) and two or more thiol groups (-SH).
- Component (A) may be, for example, a dithiol compound, which is a compound having two thiol groups (--SH).
- Component (A) may be a polymeric or oligomeric high molecular weight component.
- a compound having two thiol groups (-SH) is regarded as a compound consisting of two thiol groups and a group (first linking group) that includes a disulfide bond and links the two thiol groups. can be done.
- the molecular weight or number average molecular weight of component (A) may be, for example, 100 to 10,000,000, 200 to 3,000,000, 300 to 1,000,000, 400 to 10,000, or 500 to 5,000.
- the number-average molecular weight is a polystyrene-equivalent value obtained by gel permeation chromatography (GPC) using a standard polystyrene calibration curve.
- the component (A) has one or more (two or more) disulfide bonds in the molecule.
- the number of disulfide bonds in component (A) may be, for example, 1-1000, or 4-50.
- the component (A) may be a compound (eg, polymer or oligomer) having a linear or branched molecular chain and terminal groups and having a disulfide bond in the molecular chain.
- the terminal group in component (A) may be a thiol group.
- the molecular chains in component (A) may contain disulfide bonds and polyether chains, or may consist of disulfide bonds and polyether chains.
- Component (A) may be, for example, a compound (compound (1)) represented by formula (1): HS—(X—S—S) n1 —X—SH.
- X represents a polyether chain. Multiple X's may be the same or different.
- n1 represents an integer of 1 or more. n1 may be, for example, 1 or more or 4 or more, and may be 1000 or less.
- the component (A) is a compound represented by formula (1)
- the group represented by -(X-S-S) n1 -X- is the first linking group.
- a compound obtained by chain-extending compound (1) may be, for example, a Michael adduct of compound (1) or a thiourethane compound of compound (1).
- a polyether chain as X may be, for example, a polyoxyalkylene chain.
- a polyether chain as X may be, for example, a group represented by -X 1 -OX 2 -OX 3 -.
- X 1 to X 3 may each independently be an alkylene group or an alkylene group having 1 to 2 carbon atoms (eg, methylene group, ethylene group).
- Examples of polyether chains as X include -CH 2 CH 2 -O-CH 2 -O-CH 2 CH 2 -.
- component (A) Commercially available products of component (A) include, for example, the Thiocol LP series (dithiol having a disulfide bond, manufactured by Toray Fine Chemicals Co., Ltd.).
- Component (A) can also be obtained by converting the reactive functional group of a compound having a terminal reactive functional group (eg, carboxy group, hydroxy group) and a disulfide bond into a thiol group.
- a compound having a terminal reactive functional group eg, carboxy group, hydroxy group
- Compounds having a reactive functional group and a disulfide bond at the terminal include 3,3'-dithiodipropionic acid (manufactured by Tokyo Chemical Industry Co., Ltd.), dithiodiethanol, cystamine, and the like.
- the content of component (A) may be 15% by mass or more, 25% by mass or more, or 35% by mass or more, based on the total amount of the thermosetting composition, and 80% by mass or less, 70% by mass or less, Or it may be 60% by mass or less.
- Component (B) A cyclic ether compound having a polyether chain and two or more cyclic ether groups
- Component (B) is a compound having a polyether chain and two or more cyclic ether groups. be.
- the resin component generated by melting with light irradiation tends to have many polyether chains or hydroxyl groups (derived from cyclic ether groups) and exhibit hydrophilicity. Therefore, it becomes possible to remove the resin component with an aqueous solvent.
- Component (B) may be a polymeric or oligomeric high molecular weight component.
- the cyclic ether group of component (B) may be a group obtained by removing one hydrogen atom from a cyclic ether compound.
- Specific examples of the cyclic ether group of component (B) include an oxirane group (oxiranyl group, epoxy group), an oxetane group (oxetanyl group), a tetrahydrofuryl group, a tetrahydropyranyl group, and the like.
- the cyclic ether group may be an oxirane group from the viewpoint of reactivity and availability. That is, the component (B) may be an oxirane compound (epoxy compound) having a polyether chain and two or more oxirane groups (oxiranyl group, epoxy group).
- the cyclic ether group includes a group having a cyclic ether structure (a structure containing a cyclic ether group).
- the oxirane group includes groups having an oxirane structure (structure containing an oxirane group (oxiranyl group, epoxy group)) such as a glycidyl group, a glycidyl ether group, and an epoxycyclohexyl group.
- the molecular weight or number average molecular weight of component (B) may be, for example, 100 to 1,000,000, 100 to 500,000, 100 to 10,000, 150 to 5,000, or 200 to 2,000.
- the number-average molecular weight is a polystyrene-equivalent value obtained by gel permeation chromatography (GPC) using a standard polystyrene calibration curve.
- component (B) is an oxirane group (oxiranyl group, epoxy group)
- the epoxy equivalent of component (B) is 50 to 2000 g/eq, 80 to 1500 g/eq, or 100 to 1000 g/eq. It's okay.
- component (B) Even if the component (B) is a compound having two cyclic ether groups (hereinafter sometimes referred to as component (B1)), it may be a compound having three or more cyclic ether groups (hereinafter referred to as component (B2) may be called.) may be.
- component (B1) can be regarded as a compound consisting of two cyclic ether groups and a group (second linking group) that includes a polyether chain and links the two cyclic ether groups.
- the component (B2) may be a compound in the component (B1) having one or more cyclic ether groups as side chains or substituents of the second linking group.
- the component (B) can further shorten the curing time and further improve the photo-fusibility and water solubility, and thus may contain the component (B1) and the component (B2).
- the (B1) component may be a compound (eg, polymer or oligomer) having a linear molecular chain and terminal groups, and having a polyether chain in the molecular chain.
- the terminal group in component (B1) may be a cyclic ether group.
- a polyether chain as a molecular chain may have a substituent such as a hydroxyl group or an alkyl group optionally having a hydroxyl group.
- the molecular chains in the component (B1) may contain polyether chains or consist of polyether chains.
- the component (B1) may be, for example, a compound (compound (2)) represented by the formula (2): Z-(Y) n2 -Z.
- Y represents a polyether chain and Z represents a cyclic ether group.
- a plurality of Z's may be the same or different.
- n2 represents an integer of 1 or more.
- n2 may be, for example, 1 or more or 2 or more, and may be 1000 or less.
- the component (B1) is a compound represented by formula (2)
- the group represented by -(Y) n2 - is the second linking group.
- a polyether chain as Y may be, for example, a polyoxyalkylene chain.
- a polyether chain as Y may be, for example, a group represented by —Y 1 —O—Y 2 —O—Y 3 —.
- Y 1 to Y 3 may each independently be an alkylene group having 1 to 3 carbon atoms (eg, methylene group, ethylene group, propylene group).
- Examples of polyether chains as Y include -CH 2 CH 2 -O-CH 2 -CH 2 -O-CH 2 CH 2 -.
- component (B1) Commercially available products of component (B1) include, for example, Denacol EX series (EX-850, EX-851, EX-821, EX-830, EX-832, EX-841, EX-861, EX-920, Nagasechem manufactured by TEX Co., Ltd.) and the like.
- Denacol EX series EX-850, EX-851, EX-821, EX-830, EX-832, EX-841, EX-861, EX-920, Nagasechem manufactured by TEX Co., Ltd.
- the (B2) component can be a compound in the (B1) component that has one or more cyclic ether groups as side chains of the second linking group (polyether chain as Y).
- component (B2) examples include Denacol EX series (EX-614B, EX-313, EX-512, EX-521, manufactured by Nagase ChemteX Corporation).
- component (B) total of components (B1) and (B2) is 15% by mass or more, 25% by mass or more, or 35% by mass or more, based on the total amount of the thermosetting composition. may be 80% by mass or less, 70% by mass or less, or 60% by mass or less.
- the total content (mass) of component ) and component (B2)) may be from 0.01 to 0.40.
- the mass ratio may be 0.02 or more or 0.03 or more, 0.35 or less, 0.30 or less, 0.25 or less, 0.20 or less, 0.15 or less, 0.10 or less, Alternatively, it may be 0.05 or less.
- the equivalent ratio of the cyclic ether group of component (B) to the thiol group of component (A) is, for example, 0.5 to 2.5. you can When the equivalent ratio is 0.5 or more, the water solubility of the thermosetting composition tends to be further improved, and when the equivalent ratio is 2.5 or less, the photofusibility tends to be further improved. .
- the corresponding amount ratio may be 0.8 or more, 1.0 or more, 1.2 or more, or 1.5 or more, and may be 2.2 or less or 2.0 or less.
- Component (C) Curing accelerator Component (C) is a component for promoting the (curing) reaction of components (A) and (B), and functions as a catalyst for the curing reaction (catalytic curing agent ) is included.
- Component (C) includes amine compounds, imidazole derivatives, quaternary ammonium salts, organic metal salts, phosphorus compounds and the like.
- Amine compounds include dicyandiamide, trimethylamine, triethylamine, tripropylamine, tributylamine, tri-n-octylamine, dimethylethylamine, dimethylpropylamine, dimethylbutylmian, dimethyl-n-octylamine, 1,4-diazabicyclo[2 .2.2]octane, 1,8-diazabicyclo[5.4.0]undec-7-ene, benzyldimethylamine, 4-methyl-N,N-dimethylbenzylamine, 2,4,6-tris(dimethyl aminomethyl)phenol, 4-dimethylaminopyridine and the like.
- imidazole derivatives include 1-(1-cyanomethyl)-2-ethyl-4-methyl-1H-imidazole, 2-ethyl-4-methylimidazole, 2-methylimidazole, 2-phenylimidazole, 1-cyanoethyl-2- phenylimidazole, 2-phenyl-4,5-dihydroxymethylimidazole, 2-phenyl-4-methyl-5-hydroxymethylimidazole, 2,4,5-triphenylimidazole, 1-benzyl-2-imidazole, 1,2 -dimethylimidazole, 1-benzyl-2-phenylimidazole and the like.
- the quaternary ammonium salts include tetramethylammonium chloride, tetraethylammonium chloride, tetrabutylammonium chloride, benzyltrimethylammonium chloride, benzyltriethylammonium chloride, benzyltributylammonium chloride, tetramethylammonium bromide, tetraethylammonium bromide, tetrabutylammonium bromide, benzyltrimethylammonium bromide, benzyltriethylammonium bromide, tetramethylammonium iodide, tetraethylammonium iodide, tetrabutylammonium iodide, benzyltributylammonium iodide and the like.
- organic metal salts include organic salts such as bis(2,4-pentanedionato) zinc (II), zinc octylate, zinc naphthenate, cobalt naphthenate, copper naphthenate, iron acetylacetonate, nickel octylate, and manganese octylate. metal salts and the like.
- Phosphorus compounds include tetraphenylphosphonium tetra-p-tolylborate, tetraphenylphosphonium tetraphenylborate, triphenylphosphine, tri-p-tolylphosphine, tris(4-chlorophenyl)phosphine, tris(4-methoxyphenyl)phosphine, tris(2,6-dimethoxyphenyl)phosphine, triphenylphosphine triphenylborane, tetraphenylphosphonium dicyanamide, tetraphenylphosphonium tetra(4-methylphenyl)borate and the like.
- the content of component (C) may be 0.01% by mass or more, 0.1% by mass or more, or 0.5% by mass or more, and 10% by mass or less, based on the total amount of the thermosetting composition. , 5% by mass or less, or 2% by mass or less.
- Component (D) Photoradical Generating Agent
- the component (D) is a component that generates radicals by light irradiation in the cured product of the thermosetting composition.
- Component (D) includes a hydrogen abstraction photoradical polymerization initiator that generates radicals by abstracting hydrogen from other molecules upon irradiation with light, and an intramolecular initiator that generates two radicals by photocleavage of itself upon irradiation with light. Cleavage type photoradical polymerization initiators and the like are included.
- Component (D) may be an intramolecularly cleavable photoradical polymerization initiator because the (photomelting) reaction proceeds easily.
- hydrogen abstraction type photoradical generators examples include hexaarylbisimidazole (HABI) compounds, benzophenone compounds, thioxanthone compounds, fluorenone compounds, ⁇ -diketone compounds, and the like.
- HABI hexaarylbisimidazole
- benzophenone compounds examples include benzophenone compounds, thioxanthone compounds, fluorenone compounds, ⁇ -diketone compounds, and the like.
- HABI compounds include 2,2′-bis(o-chlorophenyl)-4,4′,5,5′-tetraphenylbiimidazole (for example, 2,2′-bis(2-chlorophenyl)-4,4′ ,5,5′-tetraphenyl-1,2′-biimidazole), 2,2′-bis(o-bromophenyl)-4,4′,5,5′-tetraphenylbiimidazole, 2,2′ -bis(o,p-dichlorophenyl)-4,4′,5,5′-tetraphenylbiimidazole, 2,2′-bis(o-chlorophenyl)-4,4′,5,5′-tetra(m -methoxyphenyl)biimidazole, 2,2'-bis(o,o'-dichlorophenyl)-4,4',5,5'-tetraphenylbiimidazole, 2,2'
- Benzophenone compounds include 4,4'-bis(dimethylamino)benzophenone, 4,4'-bis(diethylamino)benzophenone, and the like.
- Thioxanthone compounds include thioxanthone, 2-isopropylthioxanthone, 2-dodecylthioxanthone, 2-cyclohexylthioxanthone, 2,4-diethylthioxanthone, 2,4-dimethylthioxanthone, 1-phenoxythioxanthone, 1-methoxycarbonylthioxanthone, 2-ethoxy carbonylthioxanthone, 3-(2-methoxyethoxycarbonyl)-thioxanthone, 4-butoxycarbonylthioxanthone, 3-butoxycarbonyl-7-methylthioxanthone, 3,4-di-[2-(2-methoxyethoxy)-ethoxycarbonyl] -thioxanthone, 2-chlorothioxanthone, 1-ethoxycarbonyl-3-ethoxythioxanthone, 1-ethoxycarbonyl-3-chlorothioxanthone
- Fluorenone compounds include 9-fluorenone, 3,4-benzo-9-fluorenone, 2-dimethylamino-9-fluorenone, 2-methoxy-9-fluorenone, 2-chloro-9-fluorenone, 2,7-dichloro- 9-fluorenone, 2-bromo-9-fluorenone, 2,7-dibromo-9-fluorenone, 2-nitro-9-fluorenone, 2-acetoxy-9-fluorenone and the like.
- ⁇ -diketone compounds examples include benzyl (a compound also called diphenylethanedione or dibenzoyl).
- Intramolecularly cleaved photoradical generators include benzylketal photoradical generators, ⁇ -aminoalkylphenone photoradical generators, ⁇ -hydroxyalkylphenone photoradical generators, and ⁇ -hydroxyacetophenone photoradical generators. , acylphosphine oxide photoradical generators, and the like.
- Benzyl ketal photoradical generators include 2,2-dimethoxy-1,2-diphenylethan-1-one (Omnirad651).
- ⁇ -Aminoalkylphenone photoradical generators include 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1 (Omnirad 369), 2-methyl-1-[4-(methylthio ) Phenyl]-2-morpholinopropan-1-one (Omnirad 907), 2-dimethylamino-2-(4-methyl-benzyl)-1-(4-morpholin-4-yl-phenyl)-butane-1- On (Omnirad 379EG) and the like.
- Examples of the ⁇ -hydroxyalkylphenone photoradical generator include 1-hydroxy-cyclohexyl-phenyl-ketone (Omnirad 184).
- ⁇ -Hydroxyacetophenone photoradical generators include 2-hydroxy-1- ⁇ 4-[4-(2-hydroxy-2-methyl-propionyl)-benzyl]-phenyl ⁇ -2-methyl-propane-1- (Omnirad 127), 2-hydroxy-2-methyl-1-phenyl-propan-1-one (Omnirad 1173) and the like.
- Acylphosphine oxide photoradical generators include 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide (OmniradTPO H), bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide (Omnirad819), and the like. is mentioned.
- the content of component (D) may be 1% by mass or more, 5% by mass or more, or 10% by mass or more, based on the total amount of the thermosetting composition, and 30% by mass or less, 20% by mass or less, Or it may be 15% by mass or less.
- the thermosetting composition may further contain components other than components (A), (B), (C), and (D).
- Other components include, for example, plasticizers, tackifiers such as tackifiers, antioxidants, leuco dyes, sensitizers, adhesion improvers such as coupling agents, polymerization inhibitors, light stabilizers, and quenchers.
- Additives such as foaming agents, fillers, chain transfer agents, thixotropy imparting agents, flame retardants, release agents, surfactants, lubricants and antistatic agents are included.
- Known additives can be used as these additives.
- the content of other components may be 0 to 95% by mass, 0.01 to 50% by mass, or 0.1 to 10% by mass based on the total amount of the thermosetting composition.
- the thermosetting composition may be used as a varnish of a thermosetting composition diluted with a solvent.
- solvents include aromatic hydrocarbons such as toluene, xylene, mesitylene, cumene and p-cymene; aliphatic hydrocarbons such as hexane and heptane; cyclic alkanes such as methylcyclohexane; cyclic ethers; ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone and 4-hydroxy-4-methyl-2-pentanone; esters such as methyl acetate, ethyl acetate, butyl acetate, methyl lactate, ethyl lactate and ⁇ -butyrolactone; carbonic acid esters such as ethylene carbonate and propylene carbonate; and amides such as N,N-dimethylformamide, N,N-dimethylacetamide and N-
- thermosetting composition is prepared, for example, by mixing or kneading components (A), (B), (C), and (D), and optionally other components.
- the thermosetting composition can form a cured product of the thermosetting composition by heating.
- the (curing) reaction with components (A) and (B) (for example, a compound having a glycidyl ether group as a cyclic ether group) proceeds.
- the component (C) can promote the reaction.
- the reaction product of component (A) and component (B) may be, for example, a compound (polymer) containing a structure represented by the following formula.
- the component (D) is less involved in the (curing) reaction, and the cured product may contain the reaction product of the components (A) and (B) and the component (D).
- X represents the first linking group and Y represents the second linking group.
- m represents an integer of 1 or more. m may be, for example, 50 or greater, 100 or greater, 500 or greater, or 1000 or greater. * indicates a bond.
- the heating temperature of the thermosetting composition may be, for example, 0 to 200°C, 30 to 150°C, or 60 to 100°C.
- the heating time of the thermosetting composition may be, for example, 0.1 to 168 hours, 72 hours or less, 24 hours or less, 12 hours or less, 6 hours or less, 4 hours or less, 3 hours or less, or 2 hours. It may be below.
- the cured product of the thermosetting composition can be formed into various shapes.
- a cured product in the form of a film can be used as a film.
- the block-shaped cured product can be used as a block.
- a method for forming a membranous (film-like) or block-like cured product is not particularly limited, and known methods can be applied.
- a cured product of the thermosetting composition has a property of being melted by light irradiation.
- the light used for light irradiation may be light including light with a wavelength of 365 nm, for example. By irradiating such light, the cured product can be melted.
- the exposure amount of light irradiation may be, for example, 1000 mJ/cm 2 or more.
- exposure dose means the product of illuminance (mW/cm 2 ) and irradiation time (seconds). Irradiation of light may be performed directly on an object to be irradiated, or may be performed through glass or the like.
- the light source used for light irradiation is not particularly limited, and examples thereof include LED lamps, mercury lamps (low pressure, high pressure, ultra-high pressure, etc.), metal halide lamps, excimer lamps, xenon lamps, and the like.
- the light source used for light irradiation may be an LED lamp, a mercury lamp, or a metal halide lamp.
- thermosetting composition By irradiating the cured product of the thermosetting composition with light, the (D) component in the cured product forms a disulfide bond (-SS- ). As a result, the reaction products of the components (A) and (B) are reduced in molecular weight and can become liquid (liquid).
- a cured product of a thermosetting composition can be called a photofusible composition because it melts when irradiated with light.
- the photofusible composition may contain the reaction product of components (A) and (B), and component (D).
- thermosetting composition photofusible composition
- the resin component has a large number of polyether chains or hydroxyl groups, and tends to exhibit hydrophilicity.
- the resin component can be removed with an aqueous solvent.
- Water-based solvents include water, mixed solvents of water and hydrophilic organic solvents, and the like. In the mixed solvent of water and hydrophilic organic solvent, the proportion of water can be, for example, 80% by mass or more.
- a pH adjuster may be added to the aqueous solvent.
- Examples of water include tap water, natural water, purified water, distilled water, ion-exchanged water, pure water, and ultrapure water (Milli-Q water, etc.).
- Milli-Q water means ultrapure water obtained by a Milli-Q water production apparatus of Merck Millipore (Merck).
- the water may be purified water, distilled water, ion-exchanged water, pure water, or ultrapure water due to its reduced impurities.
- hydrophilic organic solvents examples include alcohols such as methanol, ethanol, 2-propanol and 1,2-propanediol; ethylene glycol monomethyl ether, propylene glycol monomethyl ether, ethyl cellosolve, propylene glycol monopropyl ether, propylene glycol monoisopropyl ether, Glycol ethers such as butyl cellosolve, ethylene glycol monoisobutyl ether, propylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, and dipropylene glycol monomethyl ether are included.
- alcohols such as methanol, ethanol, 2-propanol and 1,2-propanediol
- ethylene glycol monomethyl ether propylene glycol monomethyl ether
- ethyl cellosolve propylene glycol monopropyl ether
- propylene glycol monoisopropyl ether propylene glycol
- pH adjusters include inorganic acids, inorganic bases, organic acids, and organic bases.
- Inorganic acids include nitric acid, sulfuric acid, hydrochloric acid, phosphoric acid, boric acid and the like.
- Inorganic bases include sodium hydroxide, potassium hydroxide, calcium hydroxide and the like.
- Organic acids include formic acid, acetic acid, propionic acid, butyric acid, acrylic acid, benzoic acid, picolinic acid and the like.
- Organic bases include primary amines, secondary amines, tertiary amines, tetramethylammonium hydroxide, tetraethylammonium hydroxide, imidazole compounds and the like.
- thermosetting composition of the present embodiment includes a temporary fixing adhesive, a medical adhesive, an easy-to-dismantle adhesive, a reflow sheet material, a photoresist material (alkali-less developable photoresist), and a 3D printer material. It can be used for other purposes.
- a method for producing a structure comprises the steps of: irradiating at least a part of a first structure made of the cured product of the thermosetting composition or the photofusible composition; and obtaining a second structure by developing the first structure with an aqueous solvent.
- the structure manufacturing method is a second structure manufacturing method.
- the second structure is a structure obtained by removing the cured product of the thermosetting composition or the photo-fusible composition in the portion (part) irradiated with light from the first structure, and has a desired shape. It may be a structure having a recess.
- the first structure is obtained by forming a cured product of the above thermosetting composition or the above photofusible composition into various shapes.
- the first structure may have a shape such as a membranous (film) or block shape, and may be a film, a block, or the like.
- a method for forming the first structure is not particularly limited, and a known method can be applied.
- the type of light when irradiating the first structure, the exposure amount of light irradiation, the light irradiation, the light source used for light irradiation, etc. may be the same as described above.
- the areas irradiated with light are removed by development with a water-based solvent, and the areas not irradiated with light remain. , a recess of desired shape can be formed.
- irradiating the first structure with light for example, by using a photomask or the like, it is possible to selectively irradiate a predetermined portion (recess forming portion) with light.
- the cured product of the thermosetting composition or the photo-melting composition in the light-irradiated portion (part) of the first structure is removed.
- a second structure can be obtained.
- the water-based solvent may be the same as described above.
- the second structure may be a film, block, or the like having recesses of desired shape.
- Specific examples of the second structure include a semiconductor resist pattern, a culture substrate, and the like.
- thermosetting composition (Examples 1 to 4 and Comparative Example 1) [Preparation of thermosetting composition]
- the components (A) and (D) of the components and amounts (unit: parts by mass) shown in Table 1 are added to a 35 mL ointment pot, and a rotation and revolution stirrer (manufactured by Thinky Co., Ltd., trade name: Awatori Rentaro ARE) is added. -310) at 2000 rpm for 90 seconds and then heated at 90° C. for 15 minutes. After cooling, the components (B) and (C) are added and stirred for 90 seconds at 2000 rpm using a revolutionary stirrer to obtain thermosetting compositions of Examples 1 to 4 and Comparative Example 1. rice field.
- a rotation and revolution stirrer manufactured by Thinky Co., Ltd., trade name: Awatori Rentaro ARE
- thermosetting composition was placed in a constant temperature bath (manufactured by Espec Co., Ltd., product name: STH-120) at 90° C., and the surface of the thermosetting composition was lightly poked with a spatula every hour. At that time, the curability of the thermosetting composition was evaluated by setting the curing time to 1 hour after the thermosetting composition stopped adhering to the spatula. Table 1 shows the results.
- thermosetting composition A silicone spacer with a thickness of 0.5 mm was coated with a release-treated polyethylene terephthalate film (release PET, manufactured by Nakamoto Pax Co., Ltd., trade name: NS-38+A-500, thickness 70 ⁇ m) and a glass plate.
- the sandwiched mold was poured with the prepared thermosetting composition.
- the mold in which the thermosetting composition is injected is placed in a constant temperature bath at 90 ° C. and heated for the curing time (curing time shown in Table 1) obtained in the above curability test to cure the thermosetting composition.
- a film consisting of material was obtained.
- thermosetting compositions of Examples 1 to 4 exhibited photofusibility and excellent water solubility of the resin component.
- the thermosetting composition of the present disclosure can be melted by light irradiation, and forms a cured product (photomelting composition) that can remove the resin component generated by melting by light irradiation with a water-based solvent. confirmed that it is possible.
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
Description
[1]ジスルフィド結合を有するポリチオール化合物と、ポリエーテル鎖を有し、かつ2個以上の環状エーテル基を有する環状エーテル化合物と、硬化促進剤と、光ラジカル発生剤とを含有する、熱硬化性組成物。
[2]前記環状エーテル化合物として、2個の環状エーテル基を有する化合物及び3個以上の環状エーテル基を有する化合物を含有する、[1]に記載の熱硬化性組成物。
[3]前記環状エーテル基がオキシラン基である、[1]又は[2]に記載の熱硬化性組成物。
[4][1]~[3]のいずれかに記載の熱硬化性組成物の硬化物。
[5]ジスルフィド結合を有するポリチオール化合物、及び、ポリエーテル鎖を有し、かつ2個以上の環状エーテル基を有する環状エーテル化合物の反応生成物と、光ラジカル発生剤とを含有する、光融解性組成物。
[6][4]に記載の熱硬化性組成物の硬化物又は[5]に記載の光融解性組成物からなる第1の構造体の少なくとも一部に光照射する工程と、光照射された前記第1の構造体を水系溶剤で現像することによって、第2の構造体を得る工程とを備える、構造体の製造方法。
(A)成分は、ジスルフィド結合(-S-S-)を有し、かつ2個以上のチオール基(-SH)を有する化合物である。(A)成分は、例えば、2個のチオール基(-SH)を有する化合物である、ジチオール化合物であってよい。(A)成分は、ポリマー又はオリゴマーの高分子量成分であってよい。2個のチオール基(-SH)を有する化合物は、2個のチオール基と、ジスルフィド結合を含み、当該2個のチオール基を連結する基(第1の連結基)とからなる化合物と見なすことができる。
(B)成分は、ポリエーテル鎖を有し、かつ2個以上の環状エーテル基を有する化合物である。熱硬化性組成物が(B)成分を含有することにより、光照射で融解して生じる樹脂成分は、ポリエーテル鎖又は(環状エーテル基に由来する)水酸基を多く有し、親水性を示す傾向にあることから、当該樹脂成分を水系溶剤で除去することが可能となる。(B)成分は、ポリマー又はオリゴマーの高分子量成分であってよい。
(C)成分は、(A)成分及び(B)成分の(硬化)反応を促進するための成分であり、硬化反応の触媒として機能する成分(触媒型硬化剤)が含まれる。(C)成分としては、アミン化合物、イミダゾール誘導体、4級アンモニウム塩、有機金属塩、リン化合物等が挙げられる。
(D)成分は、熱硬化性組成物の硬化物において、光照射によって、ラジカルを発生する成分である。(D)成分としては、光照射によって他の分子から水素を引き抜いてラジカルを生成する水素引き抜き型光ラジカル重合開始剤、光照射によってその物自体が光開裂して2つのラジカルを生成する分子内開裂型光ラジカル重合開始剤等が挙げられる。(D)成分は、(光融解)反応が進行し易いことから、分子内開裂型光ラジカル重合開始剤であってよい。
(A)成分:
(A-1)チオコールLP-3(ジチオール化合物、東レ・ファインケミカル株式会社製)
(B)成分:
(B1)成分:
(B1-1)デナコールEX-841(オキシラン化合物、オキシラン基数:2、ナガセケムテックス株式会社製、エポキシ当量:372g/eq)
(B2)成分:
(B2-1)デナコールEX-512(オキシラン化合物、オキシラン基数:4、ナガセケムテックス株式会社製、エポキシ当量:168g/eq)
(C)成分:
(C-1)DMP-30(2,4,6-トリス(ジメチルアミノメチル)フェノール)
(D)成分:
(D-1)Omnirad651(2,2-ジメトキシ-1,2-ジフェニルエタン-1-オン(IGM Resins B.V.社製)
[熱硬化性組成物の調製]
35mLの軟膏壺に表1に記載の成分及び量(単位:質量部)の(A)成分及び(D)成分を加え、自公転撹拌機(株式会社シンキー製、商品名:泡とり錬太郎ARE-310)を用いて2000回転/分で90秒間混合した後、90℃で15分間加熱した。冷却後、(B)成分及び(C)成分を加え、自公転撹拌機を用いて2000回転/分で90秒間撹拌して、実施例1~4及び比較例1の熱硬化性組成物を得た。
調製した熱硬化性組成物を90℃の恒温槽(エスペック株式会社製、商品名:STH-120)に入れ、1時間おきにスパチュラを用いて熱硬化性組成物の表面を軽くつついた。その際、スパチュラに熱硬化性組成物が付着しなくなったときから1時間後を硬化時間として、熱硬化性組成物の硬化性を評価した。結果を表1に示す。
厚さ0.5mmのシリコーン製スペーサーを、離型処理が施されたポリエチレンテレフタレートフィルム(離型PET、中本パックス株式会社製、商品名:NS-38+A-500、厚さ70μm)及びガラス板で挟んだ型枠に、調製した熱硬化性組成物を注入した。熱硬化性組成物が注入された型枠を90℃の恒温槽に入れて上記硬化性試験で求められた硬化時間(表1に記載の硬化時間)で加熱し、熱硬化性組成物の硬化物からなるフィルムを得た。
上記で作製したフィルムに対して、LED(メイン波長:365nm、照度:1000mW/cm2)を用いて表1に記載の露光量となるように光を照射した。照射後、離型PETを剥がし、目視による観察及びスパチュラによる触診により、光照射部位の液状化の有無を確認した。光照射部位が全て液状で固形物が全く存在しなかった場合を「A」、光照射部位がほぼ液状であったが、一部固形物残存していた場合を「B」と評価した。なお、比較例1は、光照射部位が液状化せず、固形物のままであった。結果を表1に示す。
サンプル瓶に光融解性試験にて光照射した部位の液状部分(樹脂成分)を0.05g量りとり、純水5gをさらに加えて軽く振り混ぜた。樹脂成分が純水に溶解し濁りなく透明であった場合を「A」、わずかに濁りがあった場合を「B」と評価した。結果を表1に示す。
Claims (6)
- ジスルフィド結合を有するポリチオール化合物と、
ポリエーテル鎖を有し、かつ2個以上の環状エーテル基を有する環状エーテル化合物と、
硬化促進剤と、
光ラジカル発生剤と、
を含有する、熱硬化性組成物。 - 前記環状エーテル化合物として、2個の環状エーテル基を有する化合物及び3個以上の環状エーテル基を有する化合物を含有する、請求項1に記載の熱硬化性組成物。
- 前記環状エーテル基がオキシラン基である、請求項1又は2に記載の熱硬化性組成物。
- 請求項1~3のいずれか一項に記載の熱硬化性組成物の硬化物。
- ジスルフィド結合を有するポリチオール化合物、及び、ポリエーテル鎖を有し、かつ2個以上の環状エーテル基を有する環状エーテル化合物の反応生成物と、
光ラジカル発生剤と、
を含有する、光融解性組成物。 - 請求項4に記載の熱硬化性組成物の硬化物又は請求項5に記載の光融解性組成物からなる第1の構造体の少なくとも一部に光照射する工程と、
光照射された前記第1の構造体を水系溶剤で現像することによって、第2の構造体を得る工程と、
を備える、構造体の製造方法。
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JP2021505735A (ja) * | 2017-12-07 | 2021-02-18 | ヌーリオン ケミカルズ インターナショナル ベスローテン フェノーツハップNouryon Chemicals International B.V. | ポリチオエーテルスルフィドを調製する方法 |
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JPH11190883A (ja) | 1997-12-25 | 1999-07-13 | Brother Ind Ltd | 画像形成装置及び記録部材 |
WO2006037442A1 (de) * | 2004-10-01 | 2006-04-13 | Thioplast Chemicals Gmbh & Co. Kg | Neue polymere mercaptoendgruppen aufweisende polysulfide mit ethergruppierungen sowie zwischenprodukte zu deren herstellung |
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