WO2024101164A1 - レジスト組成物およびその硬化物 - Google Patents
レジスト組成物およびその硬化物 Download PDFInfo
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- WO2024101164A1 WO2024101164A1 PCT/JP2023/038622 JP2023038622W WO2024101164A1 WO 2024101164 A1 WO2024101164 A1 WO 2024101164A1 JP 2023038622 W JP2023038622 W JP 2023038622W WO 2024101164 A1 WO2024101164 A1 WO 2024101164A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L43/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium or a metal; Compositions of derivatives of such polymers
- C08L43/04—Homopolymers or copolymers of monomers containing silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F275/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers containing phosphorus, selenium, tellurium or a metal as defined in group C08F30/00
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
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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
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- 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
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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
- G03F7/0048—Photosensitive materials characterised by the solvents or agents facilitating spreading, e.g. tensio-active agents
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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
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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
- G03F7/075—Silicon-containing compounds
- G03F7/0757—Macromolecular compounds containing Si-O, Si-C or Si-N bonds
- G03F7/0758—Macromolecular compounds containing Si-O, Si-C or Si-N bonds with silicon- containing groups in the side chains
Definitions
- the present invention relates to a resist composition and its cured product.
- Leveling agents are added to smooth the coating film obtained by applying a coating composition such as a paint composition or a resist composition. Specifically, by adding a leveling agent to a coating composition, the leveling agent orients itself on the coating film surface, reducing the surface tension of the coating film and smoothing the resulting coating film. A coating film with a smooth surface can reduce the occurrence of repelling and unevenness.
- Leveling agents have a wide variety of uses, and are used, for example, in color resist compositions used in the production of color filters for liquid crystal displays.
- the production of color filters generally involves the steps of applying a color resist composition onto a glass substrate by a coating method such as spin coating or slit coating, exposing the dried coating film using a mask, and then developing it to form a colored pattern. If the coating film is not smooth and has uneven thickness, or if there is coating unevenness or repelling, there is a risk of color unevenness in the pixels.
- the smoothness of the resulting coating film is improved, and the surfaces of the red (R), green (G), and blue (B) pixels and the black matrix (BM) formed between these pixels can exhibit high smoothness, resulting in a color filter with less color unevenness.
- fluorine-based leveling agents have been used as leveling agents, but because fluorine-based compounds are suspected of accumulating in the environment, there is an urgent need to replace them with non-fluorine-based leveling agents.
- Silicone-based compounds for example, have been proposed as such non-fluorine-based leveling agents (for example, Patent Document 1).
- the silicone compound of Patent Document 1 is a polymer in which a silicone monomer is polymerized to form a silicone macromer, and the silicone macromer is further used as a polymerization component.
- Resist compositions photoresist compositions, color resist compositions for color filters, etc.
- the silicone compound is used as a leveling agent for a resist composition, although the resulting coating film has leveling properties, there is a problem in that defects are likely to occur on the coating film surface.
- the problem that the present invention aims to solve is to provide a resist composition that imparts excellent leveling properties to the resulting coating film and can suppress the occurrence of defects on the coating film surface.
- the inventors conducted extensive research to solve the above problems and discovered that by using a random copolymer of silicone monomers with a silicone chain length in a specific range as a leveling agent, it is possible to not only improve leveling properties but also suppress the occurrence of coating film defects, thus completing the present invention.
- a resist composition containing an alkali-soluble resin and a silicone-containing polymer is a random copolymer having as polymerization components at least a polymerizable monomer (a1) having a group represented by the following general formula (a) and a polymerizable monomer (a2) having one or more groups selected from the group consisting of an alkyl group having 1 to 18 carbon atoms, an aromatic group having 6 to 18 carbon atoms, a group containing a polyoxyalkylene chain, and a group containing a polyester chain:
- R 11 is independently an alkyl group having 1 to 6 carbon atoms or a group represented by -OSi(R 14 ) 3 (each R 14 is independently an alkyl group having 1 to 3 carbon atoms)
- R 12 is independently an alkyl group having 1 to 6 carbon atoms
- R 13 is an alkyl group having 1 to 6 carbon atoms
- x is independently an alkyl group having 1 to 6 carbon atoms
- R21 is a hydrogen atom or a methyl group
- R 22 is an alkyl group having 1 to 18 carbon atoms
- R 23 is a hydrogen atom or a methyl group
- R 24 is a hydrogen atom or an alkyl group having 1 to 18 carbon atoms
- R 25 is a hydrogen atom or a methyl group
- R 26 is an alkyl group having 1 to 18 carbon atoms or an alkyl group having 1 to 18 carbon atoms and an ether bond
- R 27 is a hydrogen atom or a methyl group
- R 28 is an alkyl group having 1
- the present invention provides a resist composition that imparts excellent leveling properties to the resulting coating film and can suppress the occurrence of defects on the coating film surface.
- (meth)acrylate refers to either or both of an acrylate and a methacrylate.
- the resist composition of the present invention contains an alkali-soluble resin and a specific silicone-containing polymer.
- silicone-containing polymer refers to a polymer having a group containing a silicone chain represented by general formula (a) described below.
- the silicone-containing polymer contained in the resist composition of the present invention (hereinafter, may be simply referred to as the "silicone-containing polymer of the present invention") is a random copolymer having as at least polymerization components a polymerizable monomer (a1) having a group represented by the following general formula (a) and a polymerizable monomer (a2) having one or more selected from the group consisting of an alkyl group having 1 to 18 carbon atoms, an aromatic group having 6 to 18 carbon atoms, a group containing a polyoxyalkylene chain, and a group containing a polyester chain:
- R 11 is independently an alkyl group having 1 to 6 carbon atoms or a group represented by -OSi(R 14 ) 3 (each R 14 is independently an alkyl group having 1 to 3 carbon atoms); R 12 is independently an alkyl group having 1 to 6 carbon atoms; R 13 is an alkyl group having 1 to 6 carbon atoms; x indicates the number of repetitions, and the number average value of x is in the range of 1 to 50.
- the silicone-containing polymer of the present invention can function as a leveling agent, and by forming it into a random copolymer in which the polymerizable monomer (a1) having a silicone chain of a specific length is used as a polymerization component, the silicone portion does not cause repelling in the coating film, and the occurrence of coating film defects can be prevented.
- the term "polymerizable monomer” means a compound having a polymerizable unsaturated group
- (meth)acryloyl group and (meth)acryloyloxy group are preferred because of the availability of raw materials and good polymerization reactivity.
- the number of polymerizable unsaturated groups contained in the polymerizable monomer may be one or two or more.
- polymerization components refers to components that constitute a polymer, and does not include solvents, polymerization initiators, etc. that do not constitute a polymer.
- R 11 is preferably a methyl group or a trimethylsiloxy group
- R 12 and R 13 are preferably methyl groups.
- x represents the number of repetitions, and may be, for example, an integer of 1 or more.
- the number average of x is in the range of 1-50, preferably in the range of 1-45, more preferably in the range of 2-45, and even more preferably in the range of 3-45.
- the number average value of x can be confirmed by measuring the number average molecular weight of the polymerizable monomer (a1) by the method described in the Examples.
- multiple R 11 may be the same or different from each other.
- multiple R 12 may be the same or different from each other.
- the polymerizable monomer (a1) is preferably a compound represented by the following general formula (a1-1).
- R 11 , R 12 , R 13 and x are the same as R 11 , R 12 , R 13 and x in formula (a), respectively;
- R 15 is a hydrogen atom or a methyl group;
- L1 is a divalent organic group.
- the divalent organic group of L1 is preferably a single bond, an alkylene group having 1 to 50 carbon atoms, or an alkyleneoxy group having 1 to 50 carbon atoms.
- Examples of the alkylene group having 1 to 50 carbon atoms for L1 include a methylene group, an ethylene group, an n-propylene group, an n-butylene group, an n-pentylene group, an n-hexylene group, an n-heptylene group, an n-octylene group, an n-nonylene group, an n-decylene group, an n-dodecylene group, an isopropylene group, a 2-methylpropylene group, a 2-methylhexylene group, and a tetramethylethylene group.
- the alkylene group having 1 to 50 carbon atoms for L1 is preferably an alkylene group having 1 to 15 carbon atoms, more preferably an alkylene group having 1 to 5 carbon atoms, and even more preferably a methylene group, an ethylene group, an n-propylene group, or an isopropylene group.
- the alkyleneoxy group having 1 to 50 carbon atoms for L 1 is, for example, a group in which one —CH 2 — within the alkylene group is replaced with —O—.
- the alkyleneoxy group having 1 to 50 carbon atoms for L1 is preferably an alkyleneoxy group having 1 to 15 carbon atoms, more preferably an alkyleneoxy group having 1 to 8 carbon atoms, and even more preferably a methyleneoxy group, an ethyleneoxy group, a propyleneoxy group, an oxytrimethylene group, a butyleneoxy group, an oxytetramethylene group, a pentyleneoxy group, a heptyleneoxy group, or an octyleneoxy group.
- the divalent organic group of L1 is an alkylene group having 1 to 50 carbon atoms or an alkyleneoxy group having 1 to 50 carbon atoms
- the polymerizable monomer (a1) can be produced by a known method, and a commercially available product may be used. Specific examples of the polymerizable monomer (a1) include ⁇ -(3-methacryloyloxy)propylpolydimethylsiloxane, 3-(methacryloyloxy)propyltris(trimethylsiloxy)silane, and the like.
- the polymerizable monomer (a1) constituting the silicone-containing polymer of the present invention may be one type alone or two or more types.
- the weight average molecular weight of the polymerizable monomer (a1) that constitutes the silicone-containing polymer of the present invention is preferably in the range of 100 to 4,000.
- the "weight average molecular weight” herein is a value measured by the method described in the Examples.
- the lower limit of the content of the polymerizable monomer (a1) in the polymerization components is, for example, 5 mass% or more, and is preferably 10 mass% or more, 15 mass% or more, 20 mass% or more, 30 mass% or more, 50 mass% or more, 60 mass% or more, and 65 mass% or more, in that order.
- the upper limit of the content of the polymerizable monomer (a1) is not particularly limited, but is, for example, 95% by mass or less, preferably 90% by mass or less, more preferably 85% by mass or less, and even more preferably 75% by mass or less.
- the content of the polymerizable monomer (a1) can be adjusted by the raw material charge ratio of the polymerizable monomer (a1) when producing the silicone-containing polymer.
- the polymerizable monomer (a2) is a polymerizable monomer having one or more selected from the group consisting of an alkyl group having 1 to 18 carbon atoms, an aromatic group having 6 to 18 carbon atoms, a group containing a polyoxyalkylene chain, and a group containing a polyester chain.
- the alkyl group having 1 to 18 carbon atoms contained in the polymerizable monomer (a2) may be any one of a linear alkyl group, a branched alkyl group, and a cyclic alkyl group, and specific examples thereof include a methyl group, an ethyl group, a normal propyl group, an isopropyl group, an n-butyl group, a t-butyl group, an n-hexyl group, a cyclohexyl group, an n-octyl group, and a hexadecyl group.
- the alkyl group having 1 to 18 carbon atoms contained in the polymerizable monomer (a2) is preferably an alkyl group having 1 to 6 carbon atoms.
- aromatic groups having 6 to 18 carbon atoms contained in the polymerizable monomer (a2) include a phenyl group, a naphthyl group, an anthracen-1-yl group, and a phenanthren-1-yl group.
- the group containing a (poly)oxyalkylene chain contained in the polymerizable monomer (a2) is a monovalent group containing a repeating oxyalkylene portion or a divalent linking group containing a repeating oxyalkylene portion.
- the group containing a polyester chain in the polymerizable monomer (a2) is a monovalent group containing a repeating ester bond portion or a divalent linking group containing a repeating ester bond portion.
- Examples of the polymerizable monomer (a2) having an alkyl group having 1 to 18 carbon atoms and in which the polymerizable unsaturated group is a (meth)acryloyl group include methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, s-butyl (meth)acrylate, isobutyl (meth)acrylate, t-butyl (meth)acrylate, n-pentyl (meth)acrylate, n-hexyl (meth)acrylate, n-heptyl (meth)acrylate, n-octyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, decyl (meth)acrylate, and the like.
- alkyl esters examples include alkyl esters of (meth)acrylic acid having 1 to 18 carbon atoms, such as dicyclopentanyloxylethyl (meth)acrylate, isobornyloxylethyl (meth)acrylate, isobornyl (meth)acrylate, adamantyl (meth)acrylate, dimethyladamantyl (meth)acrylate, dicyclopentanyl (meth)acrylate, and dicyclopentenyl (meth)acrylate.
- alkyl esters of (meth)acrylic acid having 1 to 18 carbon atoms such as dicyclopentanyloxylethyl (meth)acrylate, isobornyloxylethyl (meth)acrylate, isobornyl (meth)acrylate, adamantyl (meth)acrylate, dimethyladamantyl (meth)acrylate, dicyclopentanyl (meth)acrylate, and dicyclopentenyl (meth
- Examples of the polymerizable monomer (a2) having a phenylalkyl group having 7 to 18 carbon atoms or a phenoxyalkyl group having 7 to 18 carbon atoms and in which the polymerizable unsaturated group is a (meth)acryloyl group include benzyl (meth)acrylate, phenoxymethyl (meth)acrylate, and 2-phenoxyethyl (meth)acrylate.
- Examples of the polymerizable monomer (a2) having an alkyl group having 1 to 18 carbon atoms and in which the polymerizable unsaturated group is a vinyl ether group include alkyl vinyl ethers such as methyl vinyl ether, ethyl vinyl ether, n-propyl vinyl ether, isopropyl vinyl ether, n-butyl vinyl ether, isobutyl vinyl ether, tert-butyl vinyl ether, n-pentyl vinyl ether, n-hexyl vinyl ether, n-octyl vinyl ether, n-dodecyl vinyl ether, 2-ethylhexyl vinyl ether, and cyclohexyl vinyl ether; cycloalkyl vinyl ethers, etc.
- polymerizable monomers (a2) having an aromatic group with 6 to 18 carbon atoms examples include styrene, ⁇ -methylstyrene, p-methylstyrene, and p-methoxystyrene.
- Examples of the polymerizable monomer (a2) having an alkyl group with 1 to 18 carbon atoms and in which the polymerizable unsaturated group is a (meth)acryloylamino group include N,N-dimethylacrylamide, N,N-diethylacrylamide, N-isopropylacrylamide, diacetoneacrylamide, and acroylmorpholine.
- Examples of the polymerizable monomer (a2) having an alkyl group with 1 to 18 carbon atoms and in which the polymerizable unsaturated group is a maleimide group include methylmaleimide, ethylmaleimide, propylmaleimide, butylmaleimide, hexylmaleimide, octylmaleimide, dodecylmaleimide, stearylmaleimide, and cyclohexylmaleimide.
- Examples of the polymerizable monomer (a2) having a group containing a polyoxyalkylene chain and in which the polymerizable unsaturated group is a (meth)acryloyl group include polypropylene glycol mono(meth)acrylate, polyethylene glycol mono(meth)acrylate, polytrimethylene glycol mono(meth)acrylate, polytetramethylene glycol mono(meth)acrylate, poly(ethylene glycol.propylene glycol) mono(meth)acrylate, polyethylene glycol.polypropylene glycol mono(meth)acrylate, poly(ethylene glycol.tetramethylene glycol) mono(meth)acrylate, polyethylene glycol.polytetramethylene glycol Methylene glycol mono(meth)acrylate, poly(propylene glycol.tetramethylene glycol) mono(meth)acrylate, polypropylene glycol.polytetramethylene glycol mono(meth)acrylate, poly(propylene glycol.polyt
- poly(ethylene glycol-propylene glycol) means a random copolymer of ethylene glycol and propylene glycol
- polyethylene glycol-polypropylene glycol means a block copolymer of ethylene glycol and propylene glycol
- the polymerizable monomer (a2) is preferably at least one selected from the group consisting of a compound represented by the following general formula (a2-1), a compound represented by the following general formula (a2-2), a compound represented by the following general formula (a2-3), a compound represented by the following general formula (a2-4), and a compound represented by the following general formula (a2-5), and is more preferably at least one selected from the group consisting of a compound represented by the following general formula (a2-1), a compound represented by the following general formula (a2-2), a compound represented by the following general formula (a2-3), and a compound represented by the following general formula (a2-4).
- These compounds are able to exhibit high compatibility when the silicone-containing polymer of the present invention is used as a leveling agent.
- R21 is a hydrogen atom or a methyl group
- R 22 is an alkyl group having 1 to 18 carbon atoms
- R 23 is a hydrogen atom or a methyl group
- R 24 is a hydrogen atom or an alkyl group having 1 to 18 carbon atoms
- R 25 is a hydrogen atom or a methyl group
- R 26 is an alkyl group having 1 to 18 carbon atoms or an alkyl group having 1 to 18 carbon atoms and an ether bond
- R 27 is a hydrogen atom or a methyl group
- R 28 is an alkyl group having 1 to 18 carbon atoms or an alkyl group having an ether bond having 1 to 18 carbon atoms
- L2 is a divalent organic group or a single bond
- R 29 is a hydrogen atom or a methyl group
- R 30 is independently an alkyl group having 1 to 6 carbon atoms or an alkoxy group having
- the m n's in the parentheses may be the same or different.
- the q p's in the parentheses may be the same or different.
- the q p's in the parentheses may be the same or different.
- Examples of the divalent organic group for L2 in the general formulae (a2-3) and (a2-4) include the same divalent organic groups as those for L1 .
- the polymerizable monomer (a2) preferably includes at least one selected from the group consisting of the compounds represented by the general formula (a2-2), the compounds represented by the general formula (a2-3), and the compounds represented by the general formula (a2-4).
- the polymerizable monomer (a2) contains one or more selected from the group consisting of the compound represented by the general formula (a2-2), the compound represented by the general formula (a2-3), and the compound represented by the general formula (a2-4)
- the total amount of the compound represented by the general formula (a2-2), the compound represented by the general formula (a2-3), and the compound represented by the general formula (a2-4) is preferably 50 mass% or more based on the total amount of the polymerizable monomer (a2).
- the polymerizable monomer (a2) can be produced by a known method.
- Commercially available products may be used as the polymerizable monomer (a2).
- commercially available products of the polymerizable monomer (a2) having a group containing a polyoxyalkylene chain and in which the polymerizable unsaturated group is a (meth)acryloyl group include "NK ESTER M-20G”, “NK ESTER M-40G”, “NK ESTER M-90G”, “NK ESTER M-230G”, “NK ESTER AM-90G”, “NK ESTER AMP-10G”, “NK ESTER AMP-20G”, and “NK ESTER AMP-60G” manufactured by Shin-Nakamura Chemical Co., Ltd., and "BLEMMER PE-90", “BLEMMER PE-200", “BLEMMER PE-350”, and “BLEMMER PME-100” manufactured by NOF Corporation.
- the polymerizable monomer (a2) constituting the silicone-containing polymer of the present invention may be one type alone or two or more types.
- the silicone-containing polymer of the present invention is a random copolymer having at least the polymerizable monomer (a1) and the polymerizable monomer (a2) as polymerization components. That is, the silicone-containing polymer of the present invention is a copolymer in which a structure derived from the polymerizable monomer (a1) and a structure derived from the polymerizable monomer (a2) are randomly arranged.
- the silicone-containing polymer of the present invention can be produced by the method described below.
- the silicone-containing polymer of the present invention preferably does not contain a block copolymer in which a block having a structure derived from polymerizable monomer (a1) and a block having a structure derived from polymerizable monomer (a2) are linked together, and more preferably does not contain a block having a structure derived from polymerizable monomer (a1) and/or a block having a structure derived from polymerizable monomer (a2).
- the production of block polymers generally requires a metal catalyst, and the resulting block polymer contains unavoidable metal impurities. In nanometer-order lithography, even trace amounts of metal impurities can affect resist performance.
- the silicone-containing polymer of the present invention does not require a metal catalyst for production and does not contain metal impurities, so adverse effects on resist performance can be avoided.
- the production of block copolymers generally requires complicated management. Specifically, if the monomer that will become the second block is added when the polymerization rate of the first block is low, blocking may be insufficient, while if the monomer that will become the second block is added when the polymerization rate of the first block is high, active ends may be deactivated and the polymerization reaction may not proceed sufficiently. In addition, measures are required to prevent the inclusion of substances that cause polymerization deactivation, such as oxygen, which inhibits blocking.
- the silicone-containing polymer of the present invention is also excellent in that production management is not complicated.
- the silicone-containing polymer of the present invention may contain at least the polymerizable monomer (a1) and the polymerizable monomer (a2) as polymerization components, and may also contain other polymerizable monomers as polymerization components other than the polymerizable monomer (a1) and the polymerizable monomer (a2), as long as the effects of the present invention are not impaired.
- the silicone-containing polymer of the present invention is preferably a copolymer essentially consisting of polymerizable monomer (a1) and polymerizable monomer (a2), and more preferably a copolymer consisting only of polymerizable monomer (a1) and polymerizable monomer (a2).
- essentially consisting of refers to a case where the total content of polymerizable monomer (a1) and polymerizable monomer (a2) in the polymerization components is 75% by mass or more, 80% by mass or more, 90% by mass or more, 95% by mass or more, or 99% by mass or more.
- the silicone-containing polymer of the present invention preferably does not contain fluorine atoms.
- the copolymer of the present invention can be a copolymer containing no fluorine atoms.
- the number average molecular weight (Mn) of the silicone-containing polymer of the present invention is preferably in the range of 1,000 to 500,000, more preferably in the range of 2,000 to 100,000, and even more preferably in the range of 2,000 to 40,000.
- the weight average molecular weight (Mw) of the silicone-containing polymer of the present invention is preferably in the range of 1,000 to 500,000, more preferably in the range of 2,000 to 100,000, and even more preferably in the range of 2,000 to 40,000.
- the upper limit of the weight average molecular weight (Mw) of the silicone-containing polymer of the present invention is preferably less than 10,000.
- the weight average molecular weight (Mw) and number average molecular weight (Mn) are values calculated in terms of polystyrene based on gel permeation chromatography (GPC) measurements.
- the number average molecular weight (Mn) and weight average molecular weight (Mw) of the silicone-containing polymer of the present invention are measured by the method described in the Examples.
- the content of the silicone-containing polymer in the resist composition of the present invention may be set as appropriate, and is, for example, in the range of 0.001 to 10 parts by mass, preferably 0.01 to 5 parts by mass, more preferably 0.02 to 2 parts by mass, and even more preferably 0.02 to 1 part by mass, relative to 100 parts by mass of the alkali-soluble resin. Even a small amount of the silicone-containing polymer of the present invention can provide a leveling effect, and can suppress problems such as foaming during coating.
- the silicone-containing polymer of the present invention can be produced by solution polymerization, bulk polymerization, emulsion polymerization, etc., based on a polymerization mechanism such as radical polymerization, cationic polymerization, anionic polymerization, etc.
- a polymerization mechanism such as radical polymerization, cationic polymerization, anionic polymerization, etc.
- radical polymerization the silicone-containing polymer of the present invention can be produced by charging a polymerizable monomer mixture into an organic solvent and adding a general-purpose radical polymerization initiator.
- initiators various types of initiators can be used, and examples thereof include peroxides such as t-butylperoxy-2-ethylhexanoate, benzoyl peroxide, and diacyl peroxide, azo compounds such as azobisisobutyronitrile, dimethyl azobisisobutyrate, and phenylazotriphenylmethane, and metal chelate compounds such as Mn(acac) 3 .
- peroxides such as t-butylperoxy-2-ethylhexanoate, benzoyl peroxide, and diacyl peroxide
- azo compounds such as azobisisobutyronitrile, dimethyl azobisisobutyrate, and phenylazotriphenylmethane
- metal chelate compounds such as Mn(acac) 3 .
- additives such as chain transfer agents, such as lauryl mercaptan, 2-mercaptoethanol, ethyl thioglycolic acid, and octyl thioglycolic acid, and thiol compounds having a coupling group, such as ⁇ -mercaptopropyltrimethoxysilane, may be used.
- chain transfer agents such as lauryl mercaptan, 2-mercaptoethanol, ethyl thioglycolic acid, and octyl thioglycolic acid
- thiol compounds having a coupling group such as ⁇ -mercaptopropyltrimethoxysilane
- organic solvent examples include alcohol solvents such as ethanol, isopropyl alcohol, n-butanol, iso-butanol, and tert-butanol; ketone solvents such as acetone, methyl ethyl ketone, methyl isobutyl ketone, and methyl amyl ketone; ester solvents such as methyl acetate, ethyl acetate, butyl acetate, methyl lactate, ethyl lactate, and butyl lactate; monocarboxylic acid ester solvents such as methyl 2-oxypropionate, ethyl 2-oxypropionate, propyl 2-oxypropionate, butyl 2-oxypropionate, methyl 2-methoxypropionate, ethyl 2-methoxypropionate, propyl 2-methoxypropionate, and butyl 2-methoxypropionate; dimethylformamide, dimethyl sulfoxide, N ether solvents such as methyl
- the silicone-containing polymer of the present invention can also be produced by living polymerization, such as living radical polymerization or living anionic polymerization, using at least the polymerizable monomer (a1) and the polymerizable monomer (a2) as polymerization components.
- living polymerization such as living radical polymerization or living anionic polymerization
- a dormant species whose active polymerization terminal is protected by an atom or atomic group, reversibly generates radicals and reacts with a monomer, thereby progressing the propagation reaction. Even if the first monomer is consumed, the propagation terminal does not lose activity, and reacts with the second monomer that is added sequentially to obtain a block polymer.
- Examples of such living radical polymerization include atom transfer radical polymerization (ATRP), reversible addition-fragmentation radical polymerization (RAFT), nitroxide-mediated radical polymerization (NMP), and radical polymerization using organotellurium (TERP). Of these, there are no particular restrictions on which method is used, but ATRP is preferred because of ease of control. In ATRP, polymerization is carried out using an organic halide or a sulfonyl halide compound as a polymerization initiator and a metal complex consisting of a transition metal compound and a ligand as a catalyst.
- polymerization initiators that can be used in ATRP include 1-phenylethyl chloride, 1-phenylethyl bromide, chloroform, carbon tetrachloride, 2-chloropropionitrile, ⁇ , ⁇ '-dichloroxylene, ⁇ , ⁇ '-dibromoxylene, hexakis( ⁇ -bromomethyl)benzene, and alkyl esters having 1 to 6 carbon atoms of 2-halogenated carboxylic acids (e.g., 2-chloropropionic acid, 2-bromopropionic acid, 2-chloroisobutyric acid, 2-bromoisobutyric acid, etc.).
- 2-halogenated carboxylic acids e.g., 2-chloropropionic acid, 2-bromopropionic acid, 2-chloroisobutyric acid, 2-bromoisobutyric acid, etc.
- alkyl ester having 1 to 6 carbon atoms of a 2-halogenated carboxylic acid having 1 to 6 carbon atoms include, for example, methyl 2-chloropropionate, ethyl 2-chloropropionate, methyl 2-bromopropionate, and ethyl 2-bromoisobutyrate.
- Transition metal compounds that can be used in ATRP are represented by M n+ X n .
- the transition metal Mn + of the transition metal compound represented by Mn + Xn can be selected from the group consisting of Cu + , Cu2+, Fe2 + , Fe3 + , Ru2 + , Ru3 + , Cr2 + , Cr3 + , Mo0 , Mo + , Mo2 + , Mo3 + , W2 + , W3 + , Rh3 + , Rh4 +, Co+ , Co2 + , Re2+, Re3 + , Ni0 , Ni + , Mn3 + , Mn4 + , V2 +, V3 + , Zn + , Zn2 +, Au + , Au2+ , Ag + and Ag2 + .
- X in the transition metal compound represented by M n+ X n can be selected from the group consisting of a halogen atom, an alkoxyl group having 1 to 6 carbon atoms, (SO 4 ) 1/2 , (PO 4 ) 1/3 , (HPO 4 ) 1/2 , (H 2 PO 4 ), triflate, hexafluorophosphate, methanesulfonate, arylsulfonate (preferably benzenesulfonate or toluenesulfonate), SeR 11 , CN, and R 12 COO, where R 11 represents an aryl group, a linear or branched alkyl group having 1 to 20 carbon atoms (preferably 1 to 10 carbon atoms), and R 12 represents a hydrogen atom, a linear or branched alkyl group having 1 to 6 carbon atoms (preferably a methyl group) which may be substituted 1 to 5 times with a halogen (preferably 1 to 3 times with fluorine or chlorine).
- Examples of ligand compounds capable of forming coordinate bonds with the transition metals of the above transition metal compounds include compounds having a ligand containing one or more nitrogen atoms, oxygen atoms, phosphorus atoms, or sulfur atoms that can be coordinated with the transition metal via a ⁇ bond, compounds having a ligand containing two or more carbon atoms that can be coordinated with the transition metal via a ⁇ bond, and compounds having a ligand that can be coordinated with the transition metal via a ⁇ bond or ⁇ bond.
- transition metal complexes are not particularly limited, but preferred ones are complexes of transition metals of Groups 7, 8, 9, 10 and 11, and more preferred ones are complexes of zero-valent copper, monovalent copper, divalent ruthenium, divalent iron or divalent nickel.
- ligands such as 2,2'-bipyridyl and its derivatives, 1,10-phenanthroline and its derivatives
- polyamines such as tetramethylethylenediamine, pentamethyldiethylenetriamine, and hexamethyltris(2-aminoethyl)amine when the central metal is copper.
- divalent ruthenium complexes examples include dichlorotris(triphenylphosphine)ruthenium, dichlorotris(tributylphosphine)ruthenium, dichloro(cyclooctadiene)ruthenium, dichlorobenzeneruthenium, dichlorop-cymeneruthenium, dichloro(norbornadiene)ruthenium, cis-dichlorobis(2,2'-bipyridine)ruthenium, dichlorotris(1,10-phenanthroline)ruthenium, and carbonylchlorohydridotris(triphenylphosphine)ruthenium.
- divalent iron complexes examples include bistriphenylphosphine complexes and triazacyclononane complexes.
- solvents used in living radical polymerization include ester-based solvents such as ethyl acetate, butyl acetate, and propylene glycol monomethyl ether acetate; ether-based solvents such as diisopropyl ether, dimethoxyethane, and diethylene glycol dimethyl ether; halogen-based solvents such as dichloromethane and dichloroethane; aromatic solvents such as toluene and xylene; ketone-based solvents such as methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone; alcohol-based solvents such as methanol, ethanol, and isopropanol; and aprotic polar solvents such as dimethylformamide and dimethyl sulfoxide.
- ester-based solvents such as ethyl acetate, butyl acetate, and propylene glycol monomethyl ether acetate
- ether-based solvents
- the polymerization temperature during the living radical polymerization is preferably in the range of room temperature to 120°C.
- the alkali-soluble resin contained in the resist composition of the present invention is a resin that is soluble in an alkaline solution, which is the developer used when patterning the resist.
- the alkali-soluble resin contained in the resist composition of the present invention is not particularly limited, and any known alkali-soluble resin can be used.
- alkali-soluble resins include novolak resins obtained by condensing an aromatic hydroxy compound derivative, such as phenol, cresol, xylenol, resorcinol, phloroglucinol, or hydroquinone, with an aldehyde compound, such as formaldehyde, acetaldehyde, or benzaldehyde; polymers or copolymers of vinylphenol compound derivatives, such as o-vinylphenol, m-vinylphenol, p-vinylphenol, or ⁇ -methylvinylphenol; (meth)acrylic acid-based polymers or copolymers, such as acrylic acid, methacrylic acid, or hydroxyethyl (meth)acrylate; polyvinyl alcohol; modified resins obtained by introducing a radioactive ray-sensitive group, such as a quinone diazide group, a naphthoquinone azide group, an aromatic azide group, or an aromatic cinnam
- the photoresist composition preferably contains a radiation-sensitive substance (photosensitive substance), a solvent, and the like in addition to the silicone-containing polymer of the present invention and an alkali-soluble resin.
- the radiation-sensitive substance contained in the photoresist composition is a substance that changes the solubility of an alkali-soluble resin in a developer when irradiated with energy rays such as ultraviolet rays, far ultraviolet rays, excimer laser light, X-rays, electron beams, ion beams, molecular beams, and gamma rays.
- energy rays such as ultraviolet rays, far ultraviolet rays, excimer laser light, X-rays, electron beams, ion beams, molecular beams, and gamma rays.
- radiation-sensitive substances include quinone diazide compounds, diazo compounds, azide compounds, onium salt compounds, halogenated organic compounds, mixtures of halogenated organic compounds and organometallic compounds, organic acid ester compounds, organic acid amide compounds, organic acid imide compounds, and poly(olefin sulfone) compounds.
- the quinone diazide compounds include, for example, 1,2-benzoquinone azide-4-sulfonic acid ester, 1,2-naphthoquinone diazide-4-sulfonic acid ester, 1,2-naphthoquinone diazide-5-sulfonic acid ester, 2,1-naphthoquinone diazide-4-sulfonic acid ester, 2,1-naphthoquinone diazide-5-sulfonic acid ester, and sulfonic acid chlorides of quinone diazide derivatives such as 1,2-benzoquinone azide-4-sulfonic acid chloride, 1,2-naphthoquinone diazide-4-sulfonic acid chloride, 1,2-naphthoquinone diazide-5-sulfonic acid chloride, 2,1-naphthoquinone diazide-4-sulfonic acid chloride, and 2,1
- diazo compounds examples include salts of condensation products of p-diazodiphenylamine with formaldehyde or acetaldehyde, inorganic diazo resin salts which are reaction products of the above condensation products with hexafluorophosphates, tetrafluoroborates, perchlorates or periodates, and organic diazo resin salts which are reaction products of the above condensation products with sulfonic acids as described in US Pat. No. 3,300,309.
- azide-based compounds examples include azidochalconic acid, diazidobenzalmethylcyclohexanones, azidocinnamylideneacetophenones, aromatic azide compounds, and aromatic diazide compounds.
- halogenated organic compound examples include halogen-containing oxadiazole-based compounds, halogen-containing triazine-based compounds, halogen-containing acetophenone-based compounds, halogen-containing benzophenone-based compounds, halogen-containing sulfoxide-based compounds, halogen-containing sulfone-based compounds, halogen-containing thiazole-based compounds, halogen-containing oxazole-based compounds, halogen-containing trizole-based compounds, halogen-containing 2-pyrone-based compounds, halogen-containing aliphatic hydrocarbon-based compounds, halogen-containing aromatic hydrocarbon-based compounds, halogen-containing heterocyclic compounds, and sulfenyl halide-based compounds.
- compounds used as halogen-based flame retardants such as tris(2,3-dibromopropyl)phosphate, tris(2,3-dibromo-3-chloropropyl)phosphate, chlorotetrabromomethane, hexachlorobenzene, hexabromobenzene, hexabromocyclododecane, hexabromobiphenyl, tribromophenyl allyl ether, tetrachlorobisphenol A, tetrabromobisphenol A, bis(bromoethyl ether)tetrabromobisphenol A, bis(chloroethyl ether)tetrachlorobisphenol A, tris(2,3-dibromopropyl)isocyanurate, 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane, and 2,2-bis(4-hydroxyethoxy-3,
- Examples of the organic acid ester include carboxylate ester and sulfonate ester.
- Examples of the organic acid amide include carboxylate amide and sulfonate amide.
- Examples of the organic acid imide include carboxylate imide and sulfonate imide.
- the radiation sensitive substance may be used alone or in combination of two or more kinds.
- the content of the radiation-sensitive substance is preferably in the range of 10 to 200 parts by mass, and more preferably in the range of 50 to 150 parts by mass, per 100 parts by mass of the alkali-soluble resin.
- solvents for photoresist compositions include ketones such as acetone, methyl ethyl ketone, cyclohexanone, cyclopentanone, cycloheptanone, 2-heptanone, methyl isobutyl ketone, and butyrolactone; alcohols such as methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, tert-butyl alcohol, pentanol, heptanol, octanol, nonanol, and decanol; ethers such as ethylene glycol dimethyl ether, ethylene glycol diethyl ether, and dioxane; alcohol ethers such as ethyl formate, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, and propy
- the color resist composition of the present invention may contain a polymerizable compound, a colorant, etc. in addition to the silicone-containing polymer and alkali-soluble resin of the present invention.
- the polymerizable compound contained in the color resist composition is, for example, a compound having a photopolymerizable functional group that can polymerize or crosslink when irradiated with active energy rays such as ultraviolet rays.
- the polymerizable compound include unsaturated carboxylic acids such as (meth)acrylic acid, esters of monohydroxy compounds and unsaturated carboxylic acids, esters of aliphatic polyhydroxy compounds and unsaturated carboxylic acids, esters of aromatic polyhydroxy compounds and unsaturated carboxylic acids, esters obtained by esterification reactions of unsaturated carboxylic acids with polyvalent carboxylic acids and polyvalent hydroxy compounds such as the above-mentioned aliphatic polyhydroxy compounds and aromatic polyhydroxy compounds, polymerizable compounds having a urethane skeleton obtained by reacting a polyisocyanate compound with a (meth)acryloyl group-containing hydroxy compound, and polymerizable compounds having an acid group.
- the polymerizable compounds may be used alone or
- esters of aliphatic polyhydroxy compounds and unsaturated carboxylic acids include (meth)acrylic acid esters such as ethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, trimethylolpropane tri(meth)acrylate, trimethylolethane tri(meth)acrylate, pentaerythritol di(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, dipentaerythritol hexa(meth)acrylate, and glycerol (meth)acrylate.
- (meth)acrylic acid esters such as ethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, trimethylolpropane tri
- examples of the (meth)acrylic acid portion of these acrylates include itaconic acid esters in which itaconic acid is substituted, crotonic acid esters in which crotonic acid is substituted, and maleic acid esters in which maleic acid is substituted.
- esters of aromatic polyhydroxy compounds and unsaturated carboxylic acids examples include hydroquinone di(meth)acrylate, resorcinol di(meth)acrylate, and pyrogallol tri(meth)acrylate.
- the ester obtained by the esterification reaction of the unsaturated carboxylic acid, the polycarboxylic acid, and the polyhydroxy compound may be a single substance or a mixture.
- esters examples include esters obtained from (meth)acrylic acid, phthalic acid, and ethylene glycol, esters obtained from (meth)acrylic acid, maleic acid, and diethylene glycol, esters obtained from (meth)acrylic acid, terephthalic acid, and pentaerythritol, and esters obtained from (meth)acrylic acid, adipic acid, butanediol, and glycerin.
- Examples of polymerizable compounds having a urethane skeleton obtained by reacting the polyisocyanate compound with a hydroxy compound containing a (meth)acryloyl group include reaction products of aliphatic diisocyanates such as hexamethylene diisocyanate and trimethylhexamethylene diisocyanate; alicyclic diisocyanates such as cyclohexane diisocyanate and isophorone diisocyanate; and aromatic diisocyanates such as tolylene diisocyanate and diphenylmethane diisocyanate with hydroxy compounds having a (meth)acryloyl group such as 2-hydroxyethyl (meth)acrylate and 3-hydroxy[1,1,1-tri(meth)acryloyloxymethyl]propane.
- reaction products of aliphatic diisocyanates such as hexamethylene diisocyanate and trimethylhexamethylene diisocyanate
- alicyclic diisocyanates such as
- the polymerizable compound having an acid group is, for example, an ester of an aliphatic polyhydroxy compound and an unsaturated carboxylic acid, and a polyfunctional polymerizable compound having an acid group by reacting an unreacted hydroxyl group of an aliphatic polyhydroxy compound with a non-aromatic carboxylic acid anhydride is preferable.
- the aliphatic polyhydroxy compound used for preparing the polyfunctional polymerizable compound is preferably pentaerythritol or dipentaerythritol.
- the acid value of the polyfunctional polymerizable compound is preferably in the range of 0.1 to 40, and more preferably in the range of 5 to 30, in order to improve developability, curability, etc.
- the acid value of the mixture of polymerizable compounds is set within the above range.
- polymerizable compounds having an acid group include a mixture mainly composed of dipentaerythritol hexaacrylate, dipentaerythritol pentaacrylate, and succinic acid ester of dipentaerythritol pentaacrylate, which is commercially available as ARONIX TO-1382 (manufactured by Toagosei Co., Ltd.).
- polymerizable compounds include (meth)acrylamides such as ethylene bis(meth)acrylamide; allyl esters such as diallyl phthalate; and compounds having a vinyl group such as divinyl phthalate.
- the content of the polymerizable compound is preferably in the range of 5 to 80% by mass, more preferably in the range of 10 to 70% by mass, and even more preferably in the range of 20 to 50% by mass, of the total solid content of the color resist composition.
- the colorant for the color resist composition is not particularly limited as long as it is capable of imparting color, and may be, for example, a pigment or a dye.
- the pigment may be either an organic pigment or an inorganic pigment.
- the organic pigment pigments of various hues such as red pigments, green pigments, blue pigments, yellow pigments, purple pigments, orange pigments, and brown pigments may be used.
- examples of the chemical structure of the organic pigment include azo-based, phthalocyanine-based, quinacridone-based, benzimidazolone-based, isoindolinone-based, dioxazine-based, indanthrene-based, and perylene-based pigments.
- examples of the inorganic pigment include barium sulfate, lead sulfate, titanium oxide, yellow lead, red iron oxide, and chromium oxide.
- C.I stands for color index.
- the red pigment may be, for example, C.I. Pigment Red 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 15, 16, 17, 21, 22, 23, 31, 32, 37, 38, 41, 47, 48, 48:1, 48:2, 48:3, 48:4, 49, 49:1, 49:2, 50:1, 52:1, 52:2, 53, 53:1, 53:2, 53:3, 57, 57:1 , 57:2, 58:4, 60, 63, 63:1, 63:2, 64, 64:1, 68, 69, 81, 81:1, 81:2, 81:3, 81:4, 83, 88, 90:1, 101, 101:1, 104, 108, 108:1, 109, 112, 113, 114, 122, 123, 144, 146, 147, 149, 151, 16 6, 168, 169, 170, 172, 173, 174, 175, 176, 177, 178, 179, 181, 184, 185, 187, 188, 190, 193,
- C.I. Pigment Red 48:1, 122, 168, 177, 202, 206, 207, 209, 224, 242 or 254 is preferable, and C.I. Pigment Red 177, 209, 224 or 254 is more preferable.
- Examples of the green pigment include C.I. Pigment Green 1, 2, 4, 7, 8, 10, 13, 14, 15, 17, 18, 19, 26, 36, 45, 48, 50, 51, 54, 55, and 58. Among these, C.I. Pigment Green 7, 36, and 58 are preferred.
- Examples of the blue pigment include C.I. Pigment Blue 1, 1:2, 9, 14, 15, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 17, 19, 25, 27, 28, 29, 33, 35, 36, 56, 56:1, 60, 61, 61:1, 62, 63, 66, 67, 68, 71, 72, 73, 74, 75, 76, 78, and 79.
- C.I. Pigment Blue 15, 15:1, 15:2, 15:3, 15:4, or 15:6 is preferred, and C.I. Pigment Blue 15:6 is more preferred.
- the yellow pigment may be, for example, C.I. Pigment Yellow 1, 1:1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 14, 16, 17, 24, 31, 32, 34, 35, 35:1, 36, 36:1, 37, 37:1, 40, 41, 42, 43, 48, 53, 55, 61, 62, 62:1, 63, 65, 73, 74, 75, 81, 83, 87, 93, 94, 95, 97, 100, 101, 104, 105, 108, 109, 110, 111, 116, 117, 119, 120, 126, 127, 127:1, 128, 129, 133, 134, 136, 1 38, 139, 142, 147, 148, 150, 151, 153, 154, 155, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 172, 173, 174, 175, 176, 180, 181, 182, 183,
- C.I. C.I. Pigment Yellow 83, 117, 129, 138, 139, 150, 154, 155, 180 or 185 is preferred, and C.I. Pigment Yellow 83, 138, 139, 150 or 180 is more preferred.
- Examples of the purple pigment include C.I. Pigment Violet 1, 1:1, 2, 2:2, 3, 3:1, 3:3, 5, 5:1, 14, 15, 16, 19, 23, 25, 27, 29, 31, 32, 37, 39, 42, 44, 47, 49, and 50.
- C.I. Pigment Violet 19 or 23 is preferred, and C.I. Pigment Violet 23 is more preferred.
- orange pigment examples include C.I. Pigment Orange 1, 2, 5, 13, 16, 17, 19, 20, 21, 22, 23, 24, 34, 36, 38, 39, 43, 46, 48, 49, 61, 62, 64, 65, 67, 68, 69, 70, 71, 72, 73, 74, 75, 77, 78, and 79.
- C.I. Pigment Orange 38 or 71 is preferred.
- the three primary color pixels of color filters used in liquid crystal display devices and organic EL display devices are red (R), green (G), and blue (B), so the red, green, and blue pigments are the main components, and organic pigments of colors such as yellow, purple, and orange may be used to adjust the hue in order to improve color reproducibility.
- the average particle size of the organic pigment is preferably 1 ⁇ m or less, more preferably 0.5 ⁇ m or less, and even more preferably 0.3 ⁇ m or less. It is preferable to use the organic pigment after dispersing it so that the average particle size falls within the above range.
- the average primary particle size of the organic pigment is preferably 100 nm or less, more preferably 50 nm or less, even more preferably 40 nm or less, and particularly preferably in the range of 10 to 30 nm.
- the average particle size of the organic pigment is measured by a dynamic light scattering particle size distribution meter, and can be measured by, for example, a Nanotrac particle size distribution measuring device "UPA-EX150” or “UPA-EX250” manufactured by Nikkiso Co., Ltd.
- the colorant is not particularly limited as long as it is black, and examples thereof include carbon black, lamp black, acetylene black, bone black, thermal black, channel black, furnace black, graphite, iron black, titanium black, etc. Among these, carbon black and titanium black are preferred from the viewpoints of light shielding rate and image characteristics.
- two or more organic pigments may be mixed to produce a black color.
- carbon black products include, for example, MA7, MA8, MA11, MA100, MA100R, MA220, MA230, MA600, #5, #10, #20, #25, #30, #32, #33, #40, #44, #45, #47, #50, #52, #55, #650, #750, #850, #950, #960, #970, and #980 manufactured by Mitsubishi Chemical Corporation. #990, #1000, #2200, #2300, #2350, #2400, #2600, #3050, #3150, #3250, #3600, #3750, #3950, #4000, #4010, OIL7B, OIL9B, OIL11B, OIL30B, OIL31B, and the like.
- Printex3, Printex3OP, Printex4OP, and Printex5OP are manufactured by Evonik Degussa Japan Ltd. tex30, Printex30OP, Printex40, Printex45, Printex55, Printex60, Printex75, Printex80, Printex85, Printex90, Printex A, Printex L, Printex G, Printex P, Printex U, Printex V, Printex G, S Special Black 550, Special Black 350, Special Black 250, Special Black 100, Special Black 6, Special Black 5, Special Black 4, Color Black FW1, Color Black FW2, Color Black FW2V, Color Black FW1 8, Color Black FW18, Color Black FW200, Color Black S160, Color Black S170, etc., manufactured by Cabot Japan Co., Ltd., Monarch 120, Monarch 280, Monarch 460, Monarch 800, Monarch 880, Monarch 900, Monarch 1000, etc.
- resin-coated carbon black is preferred as it has the high optical density and high surface resistivity required for the black matrix of a color filter.
- titanium black products include, for example, titanium black 10S, 12S, 13R, 13M, and 13M-C manufactured by Mitsubishi Materials Corporation.
- BM black matrix
- two or more kinds of organic pigments may be mixed to produce a black color
- examples of the black pigment include a mixture of three color pigments, red, green, and blue.
- Colorants that can be mixed to prepare black pigments include Victoria Pure Blue (C.I. 42595), Auramine O (C.I. 41000), Catilone Brilliant Flavin (Basic 13), Rhodamine 6GCP (C.I. 45160), Rhodamine B (C.I. 45170), Safranin OK70:100 (C.I. 50240), Erioglaucine X (C.I. 42080), No. 120/Lionol Yellow (C.I.
- the average primary particle size of the carbon black is preferably in the range of 0.01 to 0.08 ⁇ m, and more preferably in the range of 0.02 to 0.05 ⁇ m due to its good developability.
- Carbon black has a particle shape different from that of organic pigments, etc., and exists in a state called a structure in which primary particles are fused to each other, and fine pores may be formed on the particle surface by post-treatment. Therefore, in order to express the particle shape of carbon black, it is generally preferable to measure the DBP absorption (JIS K6221) and the specific surface area (JIS K6217) by the BET method in addition to the average particle size of the primary particles obtained by the same method as for the organic pigments, and use these as indicators of the structure and the amount of pores.
- DBP absorption JIS K6221
- JIS K6217 specific surface area
- the dibutyl phthalate (DBP) absorption of carbon black is preferably in the range of 40 to 100 cm3 /100g, more preferably in the range of 50 to 80 cm3 /100g due to good dispersibility and developability.
- the specific surface area of carbon black measured by the BET method is preferably in the range of 50 to 120 m2 /g, more preferably in the range of 60 to 95 m2 /g due to good dispersion stability.
- the azo dyes include, for example, C.I. Acid Yellow 11, C.I. Acid Orange 7, C.I. Acid Red 37, C.I. Acid Red 180, C.I. Acid Blue 29, C.I. Direct Red 28, C.I. Direct Red 83, C.I. Direct Yellow 12, C.I. Direct Orange 26, C.I. Direct Green 28, C.I. Direct Green 59, C.I. Reactive Yellow 2, C.I. Reactive Red 17, C.I. Reactive Red 120, C.I. Reactive Black 5, C.I. Disperse Orange 5, C.I. Disperse Red 58, C.I. Disperse Blue 165, C.I. Basic Blue 41, C.I. Basic Red 18, C.I. Examples include Mordant Red 7, C.I. Mordant Yellow 5, and C.I. Mordant Black 7.
- anthraquinone dyes examples include C.I. Bat Blue 4, C.I. Acid Blue 40, C.I. Acid Green 25, C.I. Reactive Blue 19, C.I. Reactive Blue 49, C.I. Disperse Red 60, C.I. Disperse Blue 56, and C.I. Disperse Blue 60.
- Examples of the phthalocyanine dyes include C.I. Pad Blue 5, and examples of the quinoneimine dyes include C.I. Basic Blue 3 and C.I. Basic Blue 9, and examples of the quinoline dyes include C.I. Solvent Yellow 33, C.I. Acid Yellow 3 and C.I. Disperse Yellow 64, and examples of the nitro dyes include C.I. Acid Yellow 1, C.I. Acid Orange 3 and C.I. Disperse Yellow 42.
- a pigment as the colorant for the color resist composition, since the resulting coating film has excellent light resistance, weather resistance, and fastness, but a dye may be used in combination with the pigment as necessary to adjust the hue.
- the content of the colorant is preferably 1% by mass or more of the total solid content of the color resist composition, more preferably in the range of 5 to 80% by mass, and even more preferably in the range of 5 to 70% by mass.
- the content of the colorant in the color resist composition is preferably in the range of 5 to 60 mass % of the total solid content of the color resist composition, and more preferably in the range of 10 to 50 mass %.
- the content of the colorant in the color resist composition is preferably in the range of 20 to 80 mass % of the total solid content of the color resist composition, and more preferably in the range of 30 to 70 mass %.
- the colorant when the colorant is a pigment, it is preferable to use the pigment as a pigment dispersion prepared by dispersing the pigment in an organic solvent using a dispersant.
- the dispersant include surfactants, pigment intermediates or derivatives, dye intermediates or derivatives, and resin-type dispersants such as polyamide resins, polyurethane resins, polyester resins, and acrylic resins.
- resin-type dispersants such as polyamide resins, polyurethane resins, polyester resins, and acrylic resins.
- graft copolymers having nitrogen atoms, acrylic block copolymers having nitrogen atoms, and urethane resin dispersants are preferred.
- these dispersants have nitrogen atoms, the nitrogen atoms have affinity for the pigment surface, and the portions other than the nitrogen atoms increase the affinity for the medium, thereby improving the dispersion stability.
- These dispersants may be used alone or in combination of two or more kinds.
- dispersants include the "Efka” series (Efka 46, etc.) manufactured by BASF; the “Disperbyk” series and “BYK” series (BYK-160, BYK-161, BYK-2001, etc.) manufactured by BYK Japan; the “Solsperse” series manufactured by Lubrizol Japan; the "KP” series manufactured by Shin-Etsu Chemical Co., Ltd., the “Polyflow” series manufactured by Kyoeisha Chemical Co., Ltd.; the "Disparlon” series manufactured by Kusumoto Chemicals Co., Ltd.; and the "Ajisper” series manufactured by Ajinomoto Fine-Techno Co., Ltd. (Ajisper PB-814, etc.).
- organic solvent used in preparing the pigment dispersion examples include acetate-based solvents such as propylene glycol monomethyl ether acetate and propylene glycol monoethyl ether acetate; propionate-based solvents such as ethoxypropionate; aromatic solvents such as toluene, xylene, and methoxybenzene; ether-based solvents such as butyl cellosolve, propylene glycol monomethyl ether, diethylene glycol ethyl ether, and diethylene glycol dimethyl ether; ketone-based solvents such as methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone; aliphatic hydrocarbon-based solvents such as hexane; nitrogen compound-based solvents such as N,N-dimethylformamide, ⁇ -butyrolactam, and N-methyl-2-pyrrolidone; lactone-based solvents such as ⁇ -butyrolactone
- the method for preparing the pigment dispersion liquid includes a method that includes a colorant kneading/dispersing step and a fine-dispersing step, a method that includes only the fine-dispersing step, etc.
- the colorant, a part of the alkali-soluble resin, and optionally the dispersant are mixed and kneaded.
- the colorant can be dispersed by dispersing while applying a strong shear force using a kneader.
- Examples of machines used for kneading include two-roll machines, three-roll machines, ball mills, tron mills, dispersers, kneaders, co-kneaders, homogenizers, blenders, and single- or twin-screw extruders. It is preferable that the colorant be reduced in particle size by a salt milling method or the like before the above kneading is carried out.
- a solvent is added to the colorant-containing composition obtained in the kneading and dispersion process, or a mixture of a colorant, an alkali-soluble resin, a solvent, and, if necessary, the dispersant is mixed together with fine dispersion media such as glass, zirconia, or ceramic, and then mixed and dispersed using a disperser, thereby dispersing the colorant particles to a minute state close to primary particles.
- the average particle size of the primary particles of the colorant is preferably 10 to 100 nm, and more preferably 10 to 60 nm.
- the average particle size of the colorant is measured using a dynamic light scattering type particle size distribution analyzer, and can be measured, for example, using Nanotrac particle size distribution analyzers "UPA-EX150” and “UPA-EX250” manufactured by Nikkiso Co., Ltd.
- the resist composition has been exemplified above as a photoresist composition and a color resist composition, but the resist composition of the present invention is not limited to these as long as it is used as a resist, and can also be used for applications such as dry film resist.
- the silicone-containing polymer of the present invention has excellent surface tension reducing ability, and therefore can be expected to have not only leveling properties, but also wettability, permeability, washability, water repellency, oil repellency, stain resistance, lubricity, anti-blocking properties, and releasability. Furthermore, when the silicone-containing polymer of the present invention is blended with a paint or coating agent containing fine particles, it improves the dispersibility of the fine particles, and can be expected to function not only as a leveling property but also as a dispersant for the fine particles. Furthermore, when the silicone-containing polymer of the present invention is added to an adhesive composition used in adhesive tapes and the like, it can be expected to have not only leveling properties, but also the functions of reducing peel force, suppressing peel force fluctuations, and suppressing peel static electricity.
- the weight average molecular weight (Mw) and number average molecular weight (Mn) are values calculated in terms of polystyrene based on gel permeation chromatography (GPC).
- the measurement conditions for GPC are as follows.
- Example 1 Synthesis of Silicone-Containing Random Copolymer (1) and Preparation of Resist Composition
- a monomer and polymerization initiator solution prepared by dissolving 55.0 g of 3-methacryloyloxypropyltris(trimethylsiloxy)silane (molecular weight 423), 45.0 g of polypropylene glycol monomethacrylate (average number of propylene glycol repeats: 4 to 6), and 6.0 g of t-butylperoxy-2-ethylhexanoate as a polymerization initiator in 100.0 g of butyl acetate was placed in a dropping device, and the flask was dropped over 2 hours while maintaining the temperature at 100° C. After completion of the dropping, the mixture was reacted at 100° C. for 5 hours under a nitrogen stream to obtain a silicone-containing random copolymer (1).
- the molecular weight of the resulting silicone-containing random copolymer (1) was measured by GPC, and the weight average molecular weight (Mw) was found to be 6,000. In addition, based on the raw material charging ratio, the content of silicone-containing polymerizable monomer in copolymer (1) was found to be 55 mass%.
- a resist composition was prepared by mixing 3.0 g of a 40 mass % alkali-soluble resin solution (ACRYDIC ZL-295, manufactured by DIC Corporation), 1.2 g of ARONIX M-402 (manufactured by Toagosei Chemical Industry Co., Ltd., a mixture of dipentaerythritol pentaacrylate and dipentaerythritol hexaacrylate), 0.001 g (in terms of solid content) of the block copolymer (1), and 3.8 g of propylene glycol monomethyl ether acetate (PGMEA).
- PGMEA propylene glycol monomethyl ether acetate
- 3 ml of the obtained resist composition was dropped onto the center portion of a 10 cm ⁇ 10 cm chrome-plated glass substrate, spin-coated under conditions of a rotation speed of 1,000 rpm and a rotation time of 10 seconds, and then heated and dried at 100°C for 100 seconds to prepare a laminate having a coating layer.
- the coating layer of the produced laminate was evaluated for smoothness and coating defects by the following methods. The results are shown in Table 1. (Smoothness) The coating layer of the obtained laminate was visually observed, and the smoothness of the coating layer was evaluated according to the following criteria. ⁇ : Almost no coating unevenness was observed. ⁇ : Coating unevenness was partially observed. ⁇ : Coating unevenness was observed throughout the entire surface.
- Example 2 Synthesis of Silicone-Containing Random Copolymer (2) and Preparation of Resist Composition
- a monomer and polymerization initiator solution prepared by dissolving 55.0 g of a silicone-containing polymerizable monomer (weight average molecular weight 1,000) represented by the following formula (a1-1-1), 45.0 g of polypropylene glycol monomethacrylate, and 6.0 g of a polymerization initiator t-butylperoxy-2-ethylhexanoate in 100.0 g of butyl acetate was placed in a dropping device, and added dropwise over 2 hours while maintaining the flask at 100°C. After completion of the dropping, the mixture was reacted for 4 hours at 100°C under a nitrogen stream, to obtain a silicone-containing random copolymer (2).
- a silicone-containing polymerizable monomer weight average molecular weight 1,000
- the molecular weight of the resulting silicone-containing random copolymer (2) was measured by GPC, and as a result, the weight average molecular weight (Mw) was 6,000. In addition, based on the raw material charging ratio, the content of the silicone-containing polymerizable monomer in the copolymer (2) was 55 mass%.
- a coating film was formed and evaluated in the same manner as in Example 1. The results are shown in Table 1.
- Example 3 Synthesis of Silicone-Containing Random Copolymer (3) and Preparation of Resist Composition
- a monomer and polymerization initiator solution prepared by dissolving 55.0 g of a silicone-containing polymerizable monomer (weight average molecular weight 3,000) represented by the following formula (a1-1-2), 45.0 g of polypropylene glycol monomethacrylate, and 6.0 g of a polymerization initiator t-butylperoxy-2-ethylhexanoate in 100.0 g of butyl acetate was placed in a dropping device, and added dropwise over 2 hours while maintaining the flask at 100°C. After completion of the dropping, the mixture was reacted under a nitrogen stream at 100°C for 4 hours to obtain a silicone-containing random copolymer (3).
- a silicone-containing polymerizable monomer weight average molecular weight 3,000
- the molecular weight of the resulting silicone-containing random copolymer (3) was measured by GPC, and as a result, the weight average molecular weight (Mw) was 6,000. In addition, based on the raw material charging ratio, the content of the silicone-containing polymerizable monomer in the copolymer (3) was 55 mass%.
- a coating film was formed and evaluated in the same manner as in Example 1. The results are shown in Table 1.
- a monomer and polymerization initiator solution prepared by dissolving 55.0 g of a silicone-containing polymerizable monomer (weight average molecular weight 5,000) represented by the following formula (a1-1-1'), 45.0 g of polypropylene glycol monomethacrylate, and 6.0 g of a polymerization initiator t-butylperoxy-2-ethylhexanoate in 100.0 g of butyl acetate was placed in a dropping device, and added dropwise over 2 hours while maintaining the flask at 100°C. After completion of the dropping, the mixture was reacted under a nitrogen stream at 100°C for 4 hours to obtain a silicone-containing random copolymer (1').
- a silicone-containing polymerizable monomer weight average molecular weight 5,000
- the molecular weight of the resulting silicone-containing random copolymer (1') was measured by GPC, and as a result, the weight average molecular weight (Mw) was 12,000. Furthermore, based on the raw material charging ratio, the content of the silicone-containing polymerizable monomer in the copolymer (1') was 55 mass%.
- the resulting silicone-containing random copolymer (1') was subjected to coating film formation and evaluation in the same manner as in Example 1. The results are shown in Table 1.
- a monomer and polymerization initiator solution prepared by dissolving 55.0 g of a silicone-containing polymerizable monomer (weight average molecular weight 5,000) represented by the following formula (a1-1-2'), 45.0 g of polypropylene glycol monomethacrylate, and 6.0 g of a polymerization initiator t-butylperoxy-2-ethylhexanoate in 100.0 g of butyl acetate was placed in a dropping device, and added dropwise over 2 hours while maintaining the flask at 100°C. After completion of the dropping, the mixture was reacted under a nitrogen stream at 100°C for 4 hours to obtain a silicone-containing random copolymer (2').
- a silicone-containing polymerizable monomer weight average molecular weight 5,000
- the molecular weight of the resulting silicone-containing random copolymer (2') was measured by GPC, and as a result, the weight average molecular weight (Mw) was 24,000. Furthermore, based on the raw material charging ratio, the content of the silicone-containing polymerizable monomer in the copolymer (2') was 55 mass%.
- the resulting silicone-containing random copolymer (2') was subjected to coating film formation and evaluation in the same manner as in Example 1. The results are shown in Table 1.
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Abstract
Description
1.アルカリ可溶性樹脂および含シリコーン重合体を含有するレジスト組成物であって、
前記含シリコーン重合体が、下記一般式(a)で表される基を有する重合性単量体(a1)と、炭素原子数1~18のアルキル基、炭素原子数6~18の芳香族基、ポリオキシアルキレン鎖を含む基およびポリエステル鎖を含む基からなる群から選択される1以上を有する重合性単量体(a2)とを少なくとも重合成分とするランダム共重合体であるレジスト組成物。
R11は、それぞれ独立に、炭素原子数1~6のアルキル基又は-OSi(R14)3で表される基(R14はそれぞれ独立に炭素原子数1~3のアルキル基)であり、
R12は、それぞれ独立に、炭素原子数1~6のアルキル基であり、
R13は、炭素原子数1~6のアルキル基であり、
xは繰り返し数を示し、xの数平均値は1~50の範囲である。)
2.前記重合性単量体(a1)が、下記一般式(a1-1)で表される化合物である1に記載のレジスト組成物。
R11、R12、R13およびxは、それぞれ前記一般式(a)のR11、R12、R13およびxと同じであり、
R15は水素原子又はメチル基であり、
L1は2価の有機基である。)
3.前記重合性単量体(a2)が、下記一般式(a2-1)で表される化合物、下記一般式(a2-2)で表される化合物、下記一般式(a2-3)で表される化合物および下記一般式(a2-4)で表される化合物からなる群から選択される1以上である1又は2に記載のレジスト組成物。
R21は水素原子又はメチル基であり、
R22は炭素原子数1~18のアルキル基であり、
R23は水素原子又はメチル基であり、
R24は水素原子又は炭素原子数1~18のアルキル基であり、
R25は水素原子又はメチル基であり、
R26は炭素原子数1~18のアルキル基、又は炭素原子数1~18のエーテル結合を有するアルキル基であり、
R27は水素原子又はメチル基であり、
R28は炭素原子数1~18のアルキル基、又は炭素原子数1~18のエーテル結合を有するアルキル基であり、
L2は2価の有機基又は単結合であり、
nは1~4の範囲の整数であり、mは繰り返し数を示し、mの数平均値は1~200の範囲であり、pは1~10の範囲の整数であり、qは繰り返し数を示し、qの数平均値は1~100の範囲である。)
4.前記重合成分における前記重合性単量体(a1)および前記重合性単量体(a2)の質量比が、重合性単量体(a1):重合性単量体(a2)=20:80~80:20を満たす1~3のいずれかに記載のレジスト組成物。
5.前記重合性単量体(a1)の重量平均分子量が100~4,000の範囲である1~4のいずれかに記載のレジスト組成物。
6.前記含シリコーン重合体がフッ素原子を含まない1~5のいずれか記載のレジスト組成物。
7.前記アルカリ可溶性樹脂100質量部に対して前記含シリコーン重合体を0.01~5質量部含有する1~6のいずれかに記載のレジスト組成物。
8.1~7のいずれかに記載のレジスト組成物を硬化してなる硬化物。
尚、本願明細書において、「(メタ)アクリレート」とは、アクリレートとメタクリレートの一方又は両方をいう。
尚、本発明において「含シリコーン重合体」とは、後述する一般式(a)で表されるシリコーン鎖を含む基を有する重合体を意味する。
以下、本発明のレジスト組成物が含有する各成分について説明する。
本発明のレジスト組成物が含有する含シリコーン重合体(以下、単に「本発明の含シリコーン重合体」と言う場合がある)は、下記一般式(a)で表される基を有する重合性単量体(a1)と、炭素原子数1~18のアルキル基、炭素原子数6~18の芳香族基、ポリオキシアルキレン鎖を含む基およびポリエステル鎖を含む基からなる群から選択される1以上を有する重合性単量体(a2)とを少なくとも重合成分とするランダム共重合体である。
R11は、それぞれ独立に、炭素原子数1~6のアルキル基又は-OSi(R14)3で表される基(R14はそれぞれ独立に炭素原子数1~3のアルキル基)であり、
R12は、それぞれ独立に、炭素原子数1~6のアルキル基であり、
R13は、炭素原子数1~6のアルキル基であり、
xは繰り返し数を示し、xの数平均値は1~50の範囲である。)
また、重合性単量体が有する重合性不飽和基の数は1つでもよく、2つ以上でもよい。
xの数平均は1~50の範囲であり、好ましくは1~45の範囲であり、より好ましくは2~45の範囲であり、さらに好ましくは3~45の範囲である。
xの数平均値は、重合性単量体(a1)の数平均分子量を実施例に記載の方法により測定することで確認できる。
R11、R12、R13およびxは、それぞれ前記一般式(a)のR11、R12、R13およびxと同じであり、
R15は水素原子又はメチル基であり、
L1は2価の有機基である。)
L1の炭素原子数1~50のアルキレンオキシ基は、好ましくは炭素原子数1~15のアルキレンオキシ基であり、より好ましくは炭素原子数1~8のアルキレンオキシ基であり、さらに好ましくはメチレンオキシ基、エチレンオキシ基、プロピレンオキシ基、オキシトリメチレン基、ブチレンオキシ基、オキシテトラメチレン基、ペンチレンオキシ基、ヘプチレンオキシ基又はオクチレンオキシ基である。
重合性単量体(a1)の具体例としては、α-(3-メタクリロイルオキシ)プロピルポリジメチルシロキサン、3-(メタクリロイルオキシ)プロピルトリス(トリメチルシロキシ)シラン等が挙げられる。
ここで「重量平均分子量」は実施例に記載方法で測定した値である。
重合性単量体(a1)の含有割合の上限については特に限定されないが、例えば95質量%以下であり、好ましくは90質量%以下であり、より好ましくは85質量%以下であり、さらに好ましくは75質量%以下である。
重合性単量体(a1)の含有割合は、含シリコーン重合体を製造する際の重合性単量体(a1)の原料仕込み比により調整できる。
重合性単量体(a2)が有する炭素原子数1~18のアルキル基は、好ましくは炭素原子数1~6のアルキル基である。
尚、上記「ポリ(エチレングリコール・プロピレングリコール)」は、エチレングリコールとプロピレングリコールとのランダム共重合物を意味し、「ポリエチレングリコール・ポリプロピレングリコール」は、エチレングリコールとプロピレングリコールとのブロック共重合物を意味する。
これら化合物は、本発明の含シリコーン重合体をレベリング剤として使用する場合に、高い相溶性を示すことができる。
R21は水素原子又はメチル基であり、
R22は炭素原子数1~18のアルキル基であり、
R23は水素原子又はメチル基であり、
R24は水素原子又は炭素原子数1~18のアルキル基であり、
R25は水素原子又はメチル基であり、
R26は炭素原子数1~18のアルキル基、又は炭素原子数1~18のエーテル結合を有するアルキル基であり、
R27は水素原子又はメチル基であり、
R28は炭素原子数1~18のアルキル基、又は炭素原子数1~18のエーテル結合を有するアルキル基であり、
L2は2価の有機基又は単結合であり、
R29は水素原子又はメチル基であり、
R30はそれぞれ独立に炭素原子数1~6のアルキル基又は炭素原子数1~6のアルコキシ基であり、
nは1~4の範囲の整数であり、mは繰り返し数を示し、mの数平均値は1~200の範囲であり、pは1~10の範囲の整数であり、qは繰り返し数を示し、qの数平均値は1~100の範囲であり、lは0~5の範囲の整数である。)
前記一般式(a2-3)において、括弧内のq個のpは互いに同じでも異なってもよい。
前記一般式(a2-4)において、括弧内のq個のpは互いに同じでも異なってもよい。
重合性単量体(a2)として前記一般式(a2-2)で表される化合物、前記一般式(a2-3)で表される化合物及び前記一般式(a2-4)で表される化合物からなる群から選択される1種以上を含む場合において、重合性単量体(a2)の全量に対して前記一般式(a2-2)で表される化合物、前記一般式(a2-3)で表される化合物及び前記一般式(a2-4)の合計量が50質量%以上であると好ましい。
また、重合性単量体(a2)は、市販品を用いてもよい。例えばポリオキシアルキレン鎖を含む基を有し、重合性不飽和基が(メタ)アクリロイル基である重合性単量体(a2)の市販品として、新中村化学工業株式会社製の「NKエステルM-20G」、「NKエステルM-40G」、「NKエステルM-90G」、「NKエステルM-230G」、「NKエステルAM-90G」、「NKエステルAMP-10G」、「NKエステルAMP-20G」、「NKエステルAMP-60G」、日油株式会社製の「ブレンマーPE-90」、「ブレンマーPE-200」、「ブレンマーPE-350」、「ブレンマーPME-100」、「ブレンマーPME-200」、「ブレンマーPME-400」、「ブレンマーPME-4000」、「ブレンマーPP-1000」、「ブレンマーPP-500」、「ブレンマーPP-800」、「ブレンマー70PEP-350B」、「ブレンマー55PET-800」、「ブレンマー50POEP-800B」、「ブレンマー10PPB-500B」、「ブレンマーNKH-5050」、「ブレンマーAP-400」、「ブレンマーAE-350」、株式会社ダイセル製のプラクセルFシリーズ、大阪有機化学工業株式会社製のビスコートシリーズ等が挙げられる。
本発明の含シリコーン重合体は、後述する方法で製造することができる。
ブロック重合体の製造には一般に金属触媒を必要とし、得られるブロック重合体には不可避金属不純物が含まれる。ナノメーターオーダーのリソグラフィにおいては、金属不純物がたとえ微量であってもレジスト性能に影響を与えるおそれがある。一方、本発明の含シリコーン重合体は製造に金属触媒を必要とせず金属不純物を含まないため、レジスト性能への悪影響を回避することができる。
また、ブロック共重合体の製造は管理が一般に煩雑となる。具体的には、第1ブロックの重合率が低い時点で第2ブロックとなるモノマーを投入してしまうとブロック化が不十分となるおそれがあり、一方で第1ブロックの重合率が高い時点で第2ブロックとなるモノマーを投入してしまうと、活性末端の失活が起こり、十分に重合反応が進行しないおそれがある。このほか、ブロック化を妨げる酸素などの重合失活原因物質の混入を防ぐ対策も必要となる。製造管理が煩雑とならない点でも本発明の含シリコーン重合体は優れている。
本発明の含シリコーン重合体は、好ましくは重合性単量体(a1)と重合性単量体(a2)から実質的になる共重合体であり、より好ましくは重合性単量体(a1)と重合性単量体(a2)のみからなる共重合体である。ここで「実質的になる」とは、重合成分における重合性単量体(a1)と重合性単量体(a2)の合計の含有割合が、75質量%以上、80質量%以上、90質量%以上、95質量%以上、又は99質量%以上である場合をいう。
本発明の含シリコーン重合体が例えば重合性単量体(a1)と重合性単量体(a2)からなる場合、本発明の共重合体はフッ素原子を含まない共重合体とすることができる。
本発明の含シリコーン重合体の重量平均分子量(Mw)は、好ましくは1,000~500,000の範囲であり、より好ましくは2,000~100,000の範囲であり、さらに好ましくは2,000~40,000の範囲である。本発明の含シリコーン重合体の重量平均分子量(Mw)は、好ましくは上限が10,000未満である。
本発明の含シリコーン重合体の数平均分子量(Mn)および重量平均分子量(Mw)の値は、実施例に記載の方法により測定する。
本発明の含シリコーン重合体は少量であってもレベリング効果を奏することができ、塗工時の泡立ち等不具合の発生を抑制することができる。
本発明の含シリコーン重合体の製造方法は特に限定されず、公知の方法により製造することができる。
本発明の含シリコーン重合体は、ラジカル重合法、カチオン重合法、アニオン重合法等の重合機構に基づき、溶液重合法、塊状重合法、エマルジョン重合法等により製造できる。例えばラジカル重合法であれば、有機溶媒中に重合性単量体混合物を仕込み、汎用のラジカル重合開始剤を添加することで、本発明の含シリコーン重合体を製造できる。
必要に応じて、ラウリルメルカプタン、2-メルカプトエタノール、エチルチオグリコール酸、オクチルチオグリコール酸等の連鎖移動剤や、γ-メルカプトプロピルトリメトキシシラン等のカップリング基を有するチオール化合物を連鎖移動剤等の添加剤として用いてもよい。
これら溶剤は、1種単独で用いることも2種以上併用することもできる。
炭素原子数1~6の2-ハロゲン化カルボン酸の炭素原子数1~6のアルキルエステルのより具体的な例としては、例えば、2-クロロプロピオン酸メチル、2-クロロプロピオン酸エチル、2-ブロモプロピオン酸メチル、2-ブロモイソ酪酸エチル等が挙げられる。
Mn+Xnで表される遷移金属化合物の遷移金属Mn+としては、Cu+、Cu2+、Fe2+、Fe3+、Ru2+、Ru3+、Cr2+、Cr3+、Mo0、Mo+、Mo2+、Mo3+、W2+、W3+、Rh3+、Rh4+、Co+、Co2+、Re2+、Re3+、Ni0、Ni+、Mn3+、Mn4+、V2+、V3+、Zn+、Zn2+、Au+、Au2+、Ag+およびAg2+からなる群から選択することができる。
Mn+Xnで表される遷移金属化合物のXは、ハロゲン原子、炭素原子数1~6のアルコキシル基、(SO4)1/2、(PO4)1/3、(HPO4)1/2、(H2PO4)、トリフラート、ヘキサフルオロホスフェート、メタンスルホネート、アリールスルホネート(好ましくはベンゼンスルホネート又はトルエンスルホネート)、SeR11、CNおよびR12COOからなる群から選択することができる。ここで、R11は、アリール基、直鎖状又は分岐状の炭素原子数1~20(好ましくは炭素原子数1~10)のアルキル基を表し、R12は、水素原子、ハロゲンで1~5回(好適にはフッ素もしくは塩素で1~3回)置換されていてもよい直鎖状又は分岐状の炭素原子数1~6のアルキル基(好ましくはメチル基)を表す。
Mn+Xnで表される遷移金属化合物のnは、金属上の形式電荷を表し、0~7の整数である。
リビングラジカル重合で使用する溶媒としては、例えば、酢酸エチル、酢酸ブチル、プロピレングリコールモノメチルエーテルアセテート等のエステル系溶媒;ジイソプロピルエーテル、ジメトキシエタン、ジエチレングリコールジメチルエーテル等のエーテル系溶媒;ジクロロメタン、ジクロロエタン等のハロゲン系溶媒;トルエン、キシレン等の芳香族系溶媒;メチルエチルケトン、メチルイソブチルケトン、シクロヘキサノン等のケトン系溶剤;メタノール、エタノール、イソプロパノール等のアルコール系溶剤;ジメチルホルムアミド、ジメチルスルホキシド等の非プロトン性極性溶媒などが挙げられる。
上記溶媒は、1種単独で用いてもよく2種以上を併用してもよい。
本発明のレジスト組成物が含有するアルカリ可溶性樹脂とは、レジストのパターン化時に使用する現像液であるアルカリ性溶液に対して可溶な樹脂である。
これらアルカリ可溶性樹脂は、1種単独で用いてもよく、2種以上を併用してもよい。
本発明のレジスト組成物をフォトレジスト組成物とする場合、当該フォトレジスト組成物は本発明の含シリコーン重合体およびアルカリ可溶性樹脂の他に、放射線感応性物質(感光性物質)、溶媒等を含有するとよい。
放射線感応性物質としては、例えば、キノンジアジド系化合物、ジアゾ系化合物、アジド系化合物、オニウム塩化合物、ハロゲン化有機化合物、ハロゲン化有機化合物と有機金属化合物との混合物、有機酸エステル化合物、有機酸アミド化合物、有機酸イミド化合物、ポリ(オレフィンスルホン)化合物等が挙げられる
上記の他、トリス(2,3-ジブロモプロピル)ホスフェート、トリス(2,3-ジブロモ-3-クロロプロピル)ホスフェート、クロロテトラブロモメタン、ヘキサクロロベンゼン、ヘキサブロモベンゼン、ヘキサブロモシクロドデカン、ヘキサブロモビフェニル、トリブロモフェニルアリルエーテル、テトラクロロビスフェノールA、テトラブロモビスフェノールA、ビス(ブロモエチルエーテル)テトラブロモビスフェノールA、ビス(クロロエチルエーテル)テトラクロロビスフェノールA、トリス(2,3-ジブロモプロピル)イソシアヌレート、2,2-ビス(4-ヒドロキシ-3,5-ジブロモフェニル)プロパン、2,2-ビス(4-ヒドロキシエトキシ-3,5-ジブロモフェニル)プロパン等のハロゲン系難燃剤として使用されている化合物、ジクロロフェニルトリクロロエタン等の有機クロロ系農薬として使用されている化合物等もハロゲン化有機化合物として例示される。
放射線感応性物質は、1種単独で用いてもよく2種以上を併用してもよい。
これらの溶剤は、1種単独で用いてもよく、2種以上を併用してもよい。
上記の重合性化合物としては、例えば、(メタ)アクリル酸等の不飽和カルボン酸、モノヒドロキシ化合物と不飽和カルボン酸とのエステル、脂肪族ポリヒドロキシ化合物と不飽和カルボン酸とのエステル、芳香族ポリヒドロキシ化合物と不飽和カルボン酸とのエステル、不飽和カルボン酸と多価カルボン酸及び前述の脂肪族ポリヒドロキシ化合物、芳香族ポリヒドロキシ化合物等の多価ヒドロキシ化合物とのエステル化反応により得られるエステル、ポリイソシアネート化合物と(メタ)アクリロイル基含有ヒドロキシ化合物とを反応させたウレタン骨格を有する重合性化合物、酸基を有する重合性化合物等が挙げられる。
重合性化合物は1種単独で用いてもよく、2種以上を併用してもよい。
また、これらアクリレートの(メタ)アクリル酸の部分を、イタコン酸に代えたイタコン酸エステル、クロトン酸に代えたクロトン酸エステル、或いは、マレイン酸に代えたマレイン酸エステル等も挙げられる。
不飽和カルボン酸、多価カルボン酸及び多価ヒドロキシ化合物のエステル化反応により得られるエステルは、単一物であっても、混合物であってもよい。このようなエステルとしては、例えば、(メタ)アクリル酸、フタル酸及びエチレングリコールから得られるエステル、(メタ)アクリル酸、マレイン酸及びジエチレングリコールから得られるエステル、(メタ)アクリル酸、テレフタル酸及びペンタエリスリトールから得られるエステル、(メタ)アクリル酸、アジピン酸、ブタンジオール及びグリセリンから得られるエステル等が挙げられる。
前記多官能重合性化合物の酸価は、現像性、硬化性等が良好となることから、0.1~40の範囲が好ましく、5~30の範囲がより好ましい。酸基を有する多官能重合性化合物を2種以上併用する場合、および酸基を有する多官能重合性化合物と酸基を有しない多官能重合性化合物を併用する場合には、重合性化合物の混合物の酸価が上記の範囲内になるようにすることが好ましい。
顔料は有機顔料、無機顔料のいずれであっても用いることができる。前記有機顔料としては、赤色顔料、緑色顔料、青色顔料、黄色顔料、紫色顔料、オレンジ顔料、ブラウン顔料等の各色相の顔料を使用することができる。また、有機顔料の化学構造としては、例えば、アゾ系、フタロシアニン系、キナクリドン系、ベンツイミダゾロン系、イソインドリノン系、ジオキサジン系、インダンスレン系、ペリレン系等が挙げられる。また、前記無機顔料としては、例えば、硫酸バリウム、硫酸鉛、酸化チタン、黄色鉛、ベンガラ、酸化クロム等が挙げられる。
尚、下記の「C.I.」は、カラーインデックスを意味する。
前記有機顔料の平均一次粒径は、100nm以下が好ましく、50nm以下がより好ましく、40nm以下がさらに好ましく、10~30nmの範囲が特に好ましい。
尚、有機顔料の平均粒径は、動的光散乱式の粒度分布計で測定したものであり、例えば、日機装株式会社製のナノトラック(Nanotrac)粒度分布測定装置「UPA-EX150」、「UPA-EX250」等で測定することができる。
また、2種以上の有機顔料を混合し、混色により黒色とした組み合わせでも構わない。
黒色顔料を調製するために混合使用可能な色材としては、ビクトリアピュアブルー(C.I.42595)、オーラミンO(C.I.41000)、カチロンブリリアントフラビン(ベーシック13)、ローダミン6GCP(C.I.45160)、ローダミンB(C.I.45170)、サフラニンOK70:100(C.I.50240)、エリオグラウシンX(C.I.42080)、No.120/リオノールイエロー(C.I.21090)、リオノールイエローGRO(C.I.21090)、シムラーファーストイエロー8GF(C.I.21105)、ベンジジンイエロー4T-564D(C.I.21095)、シムラーファーストレッド4015(C.I.12355)、リオノールレッド7B4401(C.I.15850)、ファーストゲンブルーTGR-L(C.I.74160)、リオノールブルーSM(C.I.26150)、リオノールブルーES(C.I.ピグメントブルー15:6)、リオノーゲンレッドGD(C.I.ピグメントレッド168)、リオノールグリーン2YS(C.I.ピグメントグリーン36)等が挙げられる。
カーボンブラックのジブチルフタル酸(以下、「DBP」と略記する。)吸収量は、40~100cm3/100gの範囲が好ましく、分散性・現像性が良好なことから50~80cm3/100gの範囲がより好ましい。カーボンブラックのBET法による比表面積は50~120m2/gの範囲が好ましく、分散安定性が良好なことから60~95m2/gの範囲がより好ましい。
前記分散剤としては、界面活性剤;顔料の中間体もしくは誘導体;染料の中間体もしくは誘導体;ポリアミド系樹脂、ポリウレタン系樹脂、ポリエステル系樹脂、アクリル系樹脂等の樹脂型分散剤等が挙げられる。これらの中でも、窒素原子を有するグラフト共重合体、窒素原子を有するアクリル系ブロック共重合体、ウレタン樹脂分散剤等が好ましい。これらの分散剤は、窒素原子を有しているため、窒素原子が顔料表面に対して親和性をもち、窒素原子以外の部分が媒質に対する親和性を高めることにより、分散安定性が向上する。
これら分散剤は、1種単独で用いてもよく、2種以上を併用してもよい。
これらの溶剤は、1種単独で用いてもよく、2種以上を併用してもよい。
混練に用いる機械としては、二本ロール、三本ロール、ボールミル、トロンミル、ディスパー、ニーダー、コニーダー、ホモジナイザー、ブレンダー、単軸もしくは二軸の押出機等が挙げられる。
着色剤は、上記の混練を行う前に、ソルトミリング法等によって粒子サイズを微細化しておくことが好ましい。
尚、本発明は下記実施例に限定されない。
GPCの測定条件は以下の通りである。
測定装置:東ソー株式会社製高速GPC装置「HLC-8320GPC」
カラム:東ソー株式会社製「TSK GUARDCOLUMN SuperHZ-L」+東ソー株式会社製「TSK gel SuperHZM-N」+東ソー株式会社製「TSK gel SuperHZM-N」+東ソー株式会社製「TSK gel SuperHZM-N」+東ソー株式会社製「TSK gel SuperHZM-N」
検出器:RI(示差屈折計)
データ処理:東ソー株式会社製「EcoSEC Data Analysis バージョン1.07」
カラム温度:40℃
展開溶媒:テトラヒドロフラン
流速:0.35mL/分
測定試料:試料7.5mgを10mLのテトラヒドロフランに溶解し、得られた溶液をマイクロフィルターでろ過したものを測定試料とした。
試料注入量:20μL
標準試料:前記「HLC-8320GPC」の測定マニュアルに準拠して、分子量が既知の下記の単分散ポリスチレンを用いた。
東ソー株式会社製「A-300」
東ソー株式会社製「A-500」
東ソー株式会社製「A-1000」
東ソー株式会社製「A-2500」
東ソー株式会社製「A-5000」
東ソー株式会社製「F-1」
東ソー株式会社製「F-2」
東ソー株式会社製「F-4」
東ソー株式会社製「F-10」
東ソー株式会社製「F-20」
東ソー株式会社製「F-40」
東ソー株式会社製「F-80」
東ソー株式会社製「F-128」
東ソー株式会社製「F-288」
窒素置換したフラスコに、溶剤として酢酸ブチル133.3gを仕込み、窒素気流下にて攪拌しながら100℃に昇温した。次いで、3-メタクリロイルオキシプロピルトリス(トリメチルシロキシ)シラン(分子量423)を55.0g、ポリプロピレングリコールモノメタクリレート(プロピレングリコールの平均繰り返し数4~6)45.0g、および重合開始剤であるt-ブチルペルオキシ-2-エチルヘキサノエート6.0gを酢酸ブチル100.0gに溶解したモノマーおよび重合開始剤溶液を滴下装置にセットし、フラスコ内を100℃に保ちながら2時間かけて滴下した。滴下終了後、窒素気流下、100℃で5時間反応させ、含シリコーンランダム共重合体(1)を得た。
アルカリ可溶性樹脂40質量%樹脂溶液(アクリディック ZL-295、DIC株式会社製)を3.0g、アロニックスM-402(東亞合成化学株式会社製、ジペンタエリスリトールペンタアクリレートとジペンタエリスリトールヘキサアクリレートの混合物)1.2gと、ブロック共重合体(1)を固形分換算で0.001g、プロピレングリコールモノメチルエーテルアセテート(PGMEA)3.8gを混合して、レジスト組成物を調製した。
得られたレジスト組成物3mlを10cm×10cmのクロムメッキガラス基板の中央部分に滴下し、回転数1,000rpmおよび回転時間10秒の条件でスピンコ-ティングした後、100℃で100秒間加熱乾燥させて塗膜層を有する積層体を作製した。
(平滑性)
得られた積層体の塗膜層を目視で観察し、下記基準に従って塗膜層の平滑性とを評価した。
〇:塗膜ムラがほとんど観察されない。
△:塗膜ムラが一部観察される。
×:塗膜ムラが全体に観測される。
得られた積層体の塗膜層を目視で観察し、下記基準に従って塗膜層の塗膜欠陥も評価した。
1:塗膜欠陥がほとんど観察されない。
2:塗膜欠陥が数点観察される。
3:塗膜欠陥が数多く観測される。
窒素置換したフラスコに、溶剤として酢酸ブチル133.3gを仕込み、窒素気流下にて攪拌しながら100℃に昇温した。次いで、下記式(a1-1-1)で表される含シリコーン重合性単量体(重量平均分子量1,000)55.0g、ポリプロピレングリコールモノメタクリレート45.0g、および重合開始剤であるt-ブチルペルオキシ-2-エチルヘキサノエート6.0gを酢酸ブチル100.0gに溶解したモノマーおよび重合開始剤溶液を滴下装置にセットし、フラスコ内を100℃に保ちながら2時間かけて滴下した。滴下終了後、窒素気流下、100℃で4時間反応させ、含シリコーンランダム共重合体(2)を得た。
得られた含シリコーンランダム共重合体(2)について、実施例1と同様にして塗膜の成膜と評価を行った。結果を表1に示す。
窒素置換したフラスコに、溶剤として酢酸ブチル133.3gを仕込み、窒素気流下にて攪拌しながら100℃に昇温した。次いで、下記式(a1-1-2)で表される含シリコーン重合性単量体(重量平均分子量3,000)55.0g、ポリプロピレングリコールモノメタクリレート45.0g、および重合開始剤であるt-ブチルペルオキシ-2-エチルヘキサノエート6.0gを酢酸ブチル100.0gに溶解したモノマーおよび重合開始剤溶液を滴下装置にセットし、フラスコ内を100℃に保ちながら2時間かけて滴下した。滴下終了後、窒素気流下、100℃で4時間反応させ、含シリコーンランダム共重合体(3)を得た。
得られた含シリコーンランダム共重合体(3)について、実施例1と同様にして塗膜の成膜と評価を行った。結果を表1に示す。
窒素置換したフラスコに、溶剤として酢酸ブチル133.3gを仕込み、窒素気流下にて攪拌しながら100℃に昇温した。次いで、下記式(a1-1-1’)で表される含シリコーン重合性単量体(重量平均分子量5,000)55.0g、ポリプロピレングリコールモノメタクリレート45.0g、および重合開始剤であるt-ブチルペルオキシ-2-エチルヘキサノエート6.0gを酢酸ブチル100.0gに溶解したモノマーおよび重合開始剤溶液を滴下装置にセットし、フラスコ内を100℃に保ちながら2時間かけて滴下した。滴下終了後、窒素気流下、100℃で4時間反応させ、含シリコーンランダム共重合体(1’)を得た。
得られた含シリコーンランダム共重合体(1’)について、実施例1と同様にして塗膜の成膜と評価を行った。結果を表1に示す。
窒素置換したフラスコに、溶剤として酢酸ブチル133.3gを仕込み、窒素気流下にて攪拌しながら100℃に昇温した。次いで、下記式(a1-1-2’)で表される含シリコーン重合性単量体(重量平均分子量5,000)55.0g、ポリプロピレングリコールモノメタクリレート45.0g、および重合開始剤であるt-ブチルペルオキシ-2-エチルヘキサノエート6.0gを酢酸ブチル100.0gに溶解したモノマーおよび重合開始剤溶液を滴下装置にセットし、フラスコ内を100℃に保ちながら2時間かけて滴下した。滴下終了後、窒素気流下、100℃で4時間反応させ、含シリコーンランダム共重合体(2’)を得た。
得られた含シリコーンランダム共重合体(2’)について、実施例1と同様にして塗膜の成膜と評価を行った。結果を表1に示す。
Claims (8)
- アルカリ可溶性樹脂および含シリコーン重合体を含有するレジスト組成物であって、
前記含シリコーン重合体が、下記一般式(a)で表される基を有する重合性単量体(a1)と、炭素原子数1~18のアルキル基、炭素原子数6~18の芳香族基、ポリオキシアルキレン鎖を含む基およびポリエステル鎖を含む基からなる群から選択される1以上を有する重合性単量体(a2)とを少なくとも重合成分とするランダム共重合体であるレジスト組成物。
(前記一般式(a)中、
R11は、それぞれ独立に、炭素原子数1~6のアルキル基又は-OSi(R14)3で表される基(R14はそれぞれ独立に炭素原子数1~3のアルキル基)であり、
R12は、それぞれ独立に、炭素原子数1~6のアルキル基であり、
R13は、炭素原子数1~6のアルキル基であり、
xは繰り返し数を示し、xの数平均値は1~50の範囲である。) - 前記重合性単量体(a2)が、下記一般式(a2-1)で表される化合物、下記一般式(a2-2)で表される化合物、下記一般式(a2-3)で表される化合物および下記一般式(a2-4)で表される化合物からなる群から選択される1以上である請求項1又は2に記載のレジスト組成物。
(前記一般式(a2-1)、(a2-2)、(a2-3)および(a2-4)中、
R21は水素原子又はメチル基であり、
R22は炭素原子数1~18のアルキル基であり、
R23は水素原子又はメチル基であり、
R24は水素原子又は炭素原子数1~18のアルキル基であり、
R25は水素原子又はメチル基であり、
R26は炭素原子数1~18のアルキル基、又は炭素原子数1~18のエーテル結合を有するアルキル基であり、
R27は水素原子又はメチル基であり、
R28は炭素原子数1~18のアルキル基、又は炭素原子数1~18のエーテル結合を有するアルキル基であり、
L2は2価の有機基又は単結合であり、
nは1~4の範囲の整数であり、mは繰り返し数を示し、mの数平均値は1~200の範囲であり、pは1~10の範囲の整数であり、qは繰り返し数を示し、qの数平均値は1~100の範囲である。) - 前記重合成分における前記重合性単量体(a1)および前記重合性単量体(a2)の質量比が、重合性単量体(a1):重合性単量体(a2)=20:80~80:20を満たす請求項1又は2に記載のレジスト組成物。
- 前記重合性単量体(a1)の重量平均分子量が100~4,000の範囲である請求項1又は2に記載のレジスト組成物。
- 前記含シリコーン重合体がフッ素原子を含まない請求項1又は2記載のレジスト組成物。
- 前記アルカリ可溶性樹脂100質量部に対して前記含シリコーン重合体を0.01~5質量部含有する請求項1又は2に記載のレジスト組成物。
- 請求項1又は2に記載のレジスト組成物を硬化してなる硬化物。
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| JP2024535483A JP7544311B1 (ja) | 2022-11-10 | 2023-10-26 | レジスト組成物およびその硬化物 |
| EP23888512.3A EP4617773A4 (en) | 2022-11-10 | 2023-10-26 | RESERVE COMPOSITION AND HARDENED PRODUCT THEREIN |
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| KR20260037602A (ko) | 2024-09-10 | 2026-03-17 | 네오스 컴파니 리미티드 | 비불소계 공중합체 및 그것을 포함하는 표면개질제 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3300309A (en) | 1963-09-06 | 1967-01-24 | Polychrome Corp | Moisture-resistant planographic plates and methods of producing same |
| JP2002179991A (ja) | 2000-09-29 | 2002-06-26 | Byk Chem Gmbh | 表面コーティング用レベリング剤 |
| JP2009256553A (ja) * | 2008-04-21 | 2009-11-05 | Fujifilm Corp | 光硬化性コーティング組成物、オーバープリント及びその製造方法 |
| WO2011013789A1 (ja) * | 2009-07-31 | 2011-02-03 | 共栄社化学株式会社 | コーティング剤用表面調整剤 |
| JP2013122040A (ja) * | 2011-11-11 | 2013-06-20 | Jnc Corp | 熱硬化性組成物 |
| JP2018532824A (ja) * | 2015-08-31 | 2018-11-08 | ビイク−ヒエミー ゲゼルシャフト ミツト ベシユレンクテル ハフツングBYK−Chemie GmbH | ポリシロキサンマクロモノマー単位を有するコポリマー、該コポリマーの製造方法、ならびに該コポリマーの、コーティング組成物およびポリマー成形コンパウンドにおける使用 |
| JP2018199765A (ja) * | 2017-05-26 | 2018-12-20 | 楠本化成株式会社 | 両親媒性ブロック共重合体を利用した塗料用レベリング剤 |
| WO2022059492A1 (ja) * | 2020-09-15 | 2022-03-24 | Dic株式会社 | シリコーン鎖含有重合体及び当該重合体を含むコーティング組成物 |
| WO2022130990A1 (ja) * | 2020-12-17 | 2022-06-23 | Dic株式会社 | 化合物、レベリング剤、コーティング組成物、レジスト組成物及び物品 |
| WO2022244586A1 (ja) * | 2021-05-18 | 2022-11-24 | Dic株式会社 | シリコーン鎖含有重合体、コーティング組成物、レジスト組成物及び物品 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7151909B2 (ja) * | 2019-12-25 | 2022-10-12 | Dic株式会社 | 重合体及び当該重合体を含むコーティング組成物 |
| US20230323002A1 (en) * | 2020-09-03 | 2023-10-12 | Dic Corporation | Polymer, coating composition, resist composition, and article |
-
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3300309A (en) | 1963-09-06 | 1967-01-24 | Polychrome Corp | Moisture-resistant planographic plates and methods of producing same |
| JP2002179991A (ja) | 2000-09-29 | 2002-06-26 | Byk Chem Gmbh | 表面コーティング用レベリング剤 |
| JP2009256553A (ja) * | 2008-04-21 | 2009-11-05 | Fujifilm Corp | 光硬化性コーティング組成物、オーバープリント及びその製造方法 |
| WO2011013789A1 (ja) * | 2009-07-31 | 2011-02-03 | 共栄社化学株式会社 | コーティング剤用表面調整剤 |
| JP2013122040A (ja) * | 2011-11-11 | 2013-06-20 | Jnc Corp | 熱硬化性組成物 |
| JP2018532824A (ja) * | 2015-08-31 | 2018-11-08 | ビイク−ヒエミー ゲゼルシャフト ミツト ベシユレンクテル ハフツングBYK−Chemie GmbH | ポリシロキサンマクロモノマー単位を有するコポリマー、該コポリマーの製造方法、ならびに該コポリマーの、コーティング組成物およびポリマー成形コンパウンドにおける使用 |
| JP2018199765A (ja) * | 2017-05-26 | 2018-12-20 | 楠本化成株式会社 | 両親媒性ブロック共重合体を利用した塗料用レベリング剤 |
| WO2022059492A1 (ja) * | 2020-09-15 | 2022-03-24 | Dic株式会社 | シリコーン鎖含有重合体及び当該重合体を含むコーティング組成物 |
| WO2022130990A1 (ja) * | 2020-12-17 | 2022-06-23 | Dic株式会社 | 化合物、レベリング剤、コーティング組成物、レジスト組成物及び物品 |
| WO2022244586A1 (ja) * | 2021-05-18 | 2022-11-24 | Dic株式会社 | シリコーン鎖含有重合体、コーティング組成物、レジスト組成物及び物品 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4617773A1 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20260037602A (ko) | 2024-09-10 | 2026-03-17 | 네오스 컴파니 리미티드 | 비불소계 공중합체 및 그것을 포함하는 표면개질제 |
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| JP7544311B1 (ja) | 2024-09-03 |
| EP4617773A1 (en) | 2025-09-17 |
| KR20250103611A (ko) | 2025-07-07 |
| JPWO2024101164A1 (ja) | 2024-05-16 |
| EP4617773A4 (en) | 2026-03-18 |
| CN120112857A (zh) | 2025-06-06 |
| TW202419491A (zh) | 2024-05-16 |
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