WO2022044480A1 - マレイミド系共重合体及び樹脂組成物 - Google Patents
マレイミド系共重合体及び樹脂組成物 Download PDFInfo
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- WO2022044480A1 WO2022044480A1 PCT/JP2021/021771 JP2021021771W WO2022044480A1 WO 2022044480 A1 WO2022044480 A1 WO 2022044480A1 JP 2021021771 W JP2021021771 W JP 2021021771W WO 2022044480 A1 WO2022044480 A1 WO 2022044480A1
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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
- C08F212/00—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 an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/06—Hydrocarbons
- C08F212/08—Styrene
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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
- C08F212/00—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 an aromatic carbocyclic ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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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
- C08F222/00—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 a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/36—Amides or imides
- C08F222/40—Imides, e.g. cyclic imides
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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
- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L101/00—Compositions of unspecified macromolecular compounds
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
- B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/005—Detaching the article from the joining tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2035/00—Use of polymers of unsaturated polycarboxylic acids or derivatives thereof as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2079/00—Use of polymers having nitrogen, with or without oxygen or carbon only, in the main chain, not provided for in groups B29K2061/00 - B29K2077/00, as moulding material
- B29K2079/08—PI, i.e. polyimides or derivatives thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0085—Copolymers
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
Definitions
- the present invention relates to a maleimide-based copolymer, a threading inhibitor composed of a maleimide-based copolymer, a resin composition containing a maleimide-based copolymer, a molded product containing a maleimide-based copolymer, and a maleimide-based copolymer.
- the present invention relates to a method for producing a molded product including.
- Hot plate welding is widely used for joining resin products.
- hot plate welding for example, two resin surfaces are melted by a hot plate, and the melted resin surfaces are welded together to join the two resin surfaces.
- Patent Document 1 discloses a method of adding a specific amount of a fluororesin to a thermoplastic resin.
- the present invention is a maleimide system capable of suppressing an increase in yellowness, imparting heat resistance, and suppressing a stringing phenomenon at the time of hot plate welding by adding it to a thermoplastic resin. It is an object of the present invention to provide a copolymer. Another object of the present invention is to provide a thread pulling inhibitor which comprises the above maleimide-based copolymer and can suppress the thread pulling phenomenon at the time of hot plate welding of a thermoplastic resin. Another object of the present invention is to provide a resin composition containing the above-mentioned maleimide-based copolymer and in which the stringing phenomenon at the time of hot plate welding is suppressed. Another object of the present invention is to provide a molded product containing the maleimide-based copolymer and a method for producing the same.
- One aspect of the present invention has 40 to 65% by mass of an aromatic vinyl-based monomer unit and 35 to 60% by mass of a maleimide-based monomer unit, and the residual amount of the aromatic vinyl-based monomer.
- the present invention relates to a maleimide-based copolymer in which the amount of the maleimide-based monomer is 200 to 2000 mass ppm and the residual amount of the maleimide-based monomer is 30 to 400 mass ppm.
- the maleimide-based copolymer according to one embodiment may further have an unsaturated dicarboxylic acid-based monomer unit, and the content of the unsaturated dicarboxylic acid-based monomer unit may be 10% by mass or less. ..
- the maleimide-based copolymer according to one embodiment may further have a vinyl cyanide-based monomer unit, and the content of the vinyl cyanide-based monomer unit may be 5 to 20% by mass.
- Another aspect of the present invention relates to a thread pulling inhibitor which is composed of the above maleimide-based copolymer and which suppresses thread pulling of a resin composition at the time of hot plate welding.
- Yet another aspect of the present invention relates to a resin composition containing the above-mentioned maleimide-based copolymer and a thermoplastic resin.
- the resin composition according to one embodiment may have a maleimide-based copolymer content of 5 to 40% by mass and a thermoplastic resin content of 60 to 95% by mass.
- the resin composition according to one embodiment may be hot plate welded.
- Yet another aspect of the present invention comprises a step of joining the first resin surface and the second resin surface by hot plate welding, and at least one of the first resin surface and the second resin surface is formed.
- the present invention relates to a method for producing a molded product, which comprises the above resin composition.
- Yet another aspect of the present invention has a welded portion in which a first resin surface and a second resin surface are welded, and at least one of the first resin surface and the second resin surface is formed.
- the present invention relates to a molded product containing the above resin composition.
- the present invention it is possible to simultaneously obtain the effects of imparting heat resistance and suppressing the stringing phenomenon at the time of hot plate welding, while suppressing the increase in yellowness by adding to the thermoplastic resin.
- Maleimide-based copolymers are provided.
- a thread pulling inhibitor which comprises the above maleimide-based copolymer and can suppress the thread pulling phenomenon at the time of hot plate welding of a thermoplastic resin.
- a resin composition containing the above-mentioned maleimide-based copolymer and in which the stringing phenomenon at the time of hot plate welding is suppressed.
- a molded product containing the maleimide-based copolymer and a method for producing the same are provided.
- the maleimide-based copolymer of the present embodiment has 40 to 65% by mass of an aromatic vinyl-based monomer unit and 35 to 60% by mass of a maleimide-based monomer unit. Further, in the maleimide-based copolymer of the present embodiment, the residual amount of the aromatic vinyl-based monomer is 200 to 2000 mass ppm, and the residual amount of the maleimide-based monomer is 30 to 400 mass ppm.
- the maleimide-based copolymer of the present embodiment has a predetermined amount of aromatic vinyl-based monomer unit and a predetermined amount of maleimide-based monomer unit, and also has an aromatic vinyl-based monomer and a maleimide-based simpler.
- the residual amount of the polymer is adjusted within a predetermined range. Therefore, the maleimide-based copolymer of the present embodiment is sufficiently suppressed in discoloration when added to the thermoplastic resin, has a high heat resistance-imparting effect on the thermoplastic resin, and is heated by the addition to the thermoplastic resin.
- the thread pulling phenomenon at the time of plate welding can be remarkably suppressed.
- the maleimide-based copolymer of the present embodiment is a resin composition having a sufficiently low yellowness and excellent heat resistance by mixing with a thermoplastic resin, and the stringing phenomenon at the time of hot plate welding is remarkably suppressed. Can be provided.
- the reason why the above effect is exhibited is not always clear, but by setting the residual amount of the monomer to the above-mentioned specific range in the maleimide-based copolymer having a specific composition, the residual monomer becomes a resin. Since it is possible to effectively suppress the stringing of the resin composition while maintaining sufficient heat resistance and yellowness of the composition, excellent yellowness, heat resistance imparting effect, and suppressing effect of threading phenomenon can be obtained at the same time. Conceivable.
- the structure of the maleimide-based copolymer of the present embodiment is not particularly limited, and a copolymer having an arbitrary structure including an aromatic vinyl-based monomer unit and a maleimide-based monomer unit can be used. That is, the copolymers are roughly classified into four types of structures: random copolymers, alternate copolymers, periodic copolymers, and block copolymers, and one of the block copolymers is a graft type. Although there is a copolymer (a copolymer having a branched structure in which different kinds of branched polymer chains are bonded to a polymer chain serving as a trunk), it may be a copolymer having any structure.
- the aromatic vinyl-based monomer unit indicates a structural unit (repeating unit) derived from the aromatic vinyl-based monomer.
- the aromatic vinyl-based monomer may be a monomer having a carbon-carbon double bond and at least one aromatic ring directly bonded to the double bond, and preferably -C (R) is attached to the aromatic ring.
- ) CH 2 (R is a hydrogen atom or a methyl group) is a monomer to which a group represented by a bond is bonded.
- the maleimide-based copolymer of the present embodiment may have only one type of aromatic vinyl-based monomer unit, and may have two or more types.
- a benzene ring or a naphthalene ring is preferable, and a benzene ring is more preferable.
- aromatic vinyl-based monomer examples include, for example.
- examples thereof include 1-vinylnaphthalene, 2-vinylnaphthalene, and vinylnaphthalene-based monomers selected from the group consisting of vinylnaphthalene derivatives in which some of the hydrogen atoms contained therein are substituted with substituents.
- each derivative examples include a halogen atom (for example, a fluorine atom, a chlorine atom, a bromine atom or an iodine atom, preferably a fluorine atom or a chlorine atom), and an alkyl group (for example, an alkyl group having 1 to 16 carbon atoms, preferably. Is an alkyl group having 1 to 8 carbon atoms, more preferably an alkyl group having 1 to 4 carbon atoms) and the like. These groups may further have a substituent (for example, the above-mentioned substituent).
- a halogen atom for example, a fluorine atom, a chlorine atom, a bromine atom or an iodine atom, preferably a fluorine atom or a chlorine atom
- an alkyl group for example, an alkyl group having 1 to 16 carbon atoms, preferably. Is an alkyl group having 1 to 8 carbon atoms, more preferably an alky
- styrene-based monomer a compound selected from the group consisting of styrene, ⁇ -methylstyrene, p-methylstyrene, ethylstyrene, tert-butylstyrene, chlorostyrene and dichlorostyrene is preferable, and styrene and ⁇ -methylstyrene are preferable.
- the compound selected from the group consisting of is more preferable, and styrene is further preferable.
- vinylnaphthalene-based monomer a compound selected from the group consisting of 1-vinylnaphthalene and 2-vinylnaphthalene is preferable, and 2-vinylnaphthalene is more preferable.
- aromatic vinyl-based monomer a styrene-based monomer is preferable. That is, as the aromatic vinyl-based monomer unit, a styrene-based monomer unit is preferable.
- the content of the aromatic vinyl-based monomer unit in the maleimide-based copolymer is 40% by mass or more, preferably 43% by mass or more, more preferably 45% by mass or more, still more preferably 47% by mass or more. be.
- the content of the aromatic vinyl-based monomer unit in the maleimide-based copolymer is 65% by mass or less, preferably 63% by mass or less, more preferably 60% by mass or less, still more preferably 57% by mass. It is less than or equal to, more preferably 55% by mass or less. As a result, the effect of imparting heat resistance to the maleimide-based copolymer tends to be further improved. That is, the content of the aromatic vinyl-based monomer unit in the maleimide-based copolymer is, for example, 40 to 65% by mass, 40 to 63% by mass, 40 to 60% by mass, 40 to 57% by mass, 40 to 40.
- the maleimide-based monomer unit indicates a structural unit (repeating unit) derived from the maleimide-based monomer.
- the maleimide-based monomer may be, for example, a monomer having at least one group represented by the following formula (1).
- the maleimide-based monomer unit does not necessarily have to be formed from the maleimide-based monomer.
- the unsaturated dicarboxylic acid-based monomer unit described later is imided with ammonia or a primary amine. It may be formed by forming.
- the maleimide-based copolymer of the present embodiment may have only one type of maleimide-based monomer unit, and may have two or more types.
- maleimide-based monomer examples include maleimide and N-substituted maleimide (that is, maleimide having a substituent on a nitrogen atom).
- N-substituted maleimide examples include an alkyl group (for example, an alkyl group having 1 to 18 carbon atoms, preferably an alkyl group having 1 to 8 carbon atoms, and more preferably an alkyl group having 1 to 4 carbon atoms).
- Alkyl group Alkyl group
- cycloalkyl group for example, cycloalkyl group having 3 to 9 carbon atoms, preferably cycloalkyl group having 4 to 8 carbon atoms, more preferably cycloalkyl group having 5 to 7 carbon atoms
- aryl group for example, cycloalkyl group having 5 to 7 carbon atoms. 6 to 10 aryl groups, preferably phenyl groups) and the like.
- These groups are further substituted groups (for example, the above-mentioned substituents, halogen atoms (for example, fluorine atom, chlorine atom, bromine atom or iodine atom, preferably fluorine atom or chlorine atom), alkoxy group (for example, alkoxy having 1 to 18 carbon atoms). It may have a group, preferably an alkoxy group having 1 to 8 carbon atoms, more preferably an alkoxy group having 1 to 4 carbon atoms)).
- substituents for example, halogen atoms (for example, fluorine atom, chlorine atom, bromine atom or iodine atom, preferably fluorine atom or chlorine atom)
- alkoxy group for example, alkoxy having 1 to 18 carbon atoms. It may have a group, preferably an alkoxy group having 1 to 8 carbon atoms, more preferably an alkoxy group having 1 to 4 carbon atoms)).
- N-substituted maleimide examples include, for example. N-alkylmaleimide such as N-methylmaleimide, N-ethylmaleimide, Nn-butylmaleimide, Nn-octylmaleimide; N-cycloalkylmaleimide such as N-cyclohexylmaleimide; N-arylmaleimide such as N-phenylmaleimide, N- (4-methoxyphenyl) maleimide; And so on.
- N-alkylmaleimide such as N-methylmaleimide, N-ethylmaleimide, Nn-butylmaleimide, Nn-octylmaleimide
- N-cycloalkylmaleimide such as N-cyclohexylmaleimide
- N-arylmaleimide such as N-phenylmaleimide, N- (4-methoxyphenyl) maleimide; And so on.
- N-substituted maleimide is preferable, N-arylmaleimide is more preferable, and N-phenylmaleimide is further preferable. That is, as the maleimide-based monomer unit (iii), an N-substituted maleimide unit is preferable, an N-arylmaleimide unit is more preferable, and an N-phenylmaleimide unit is further preferable.
- the maleimide-based monomer unit may be formed by polymerization of a maleimide-based monomer, or may be formed by imidization of an unsaturated dicarboxylic acid-based monomer unit (for example, a maleic anhydride unit). It may be a monomer.
- the unsaturated dicarboxylic acid-based monomer unit may be an unsaturated dicarboxylic acid-based monomer unit described later.
- the imidization can be carried out, for example, by reacting an unsaturated dicarboxylic acid-based monomer unit with ammonia or a primary amine.
- the content of the maleimide-based monomer unit in the maleimide-based copolymer is 35% by mass or more, preferably 37% by mass or more, more preferably 40% by mass or more, still more preferably 43% by mass or more, still more preferable. Is 45% by mass or more. As a result, the effect of imparting heat resistance to the maleimide-based copolymer tends to be further improved.
- the content of the maleimide-based monomer unit in the maleimide-based copolymer is 60% by mass or less, preferably 57% by mass or less, more preferably 55% by mass or less, still more preferably 53% by mass or less. be.
- the fluidity of the resin composition at the time of melting tends to be further improved, and the moldability tends to be further improved. Further, this tends to further improve the impact resistance of the resin composition. That is, the content of the maleimide-based monomer unit in the maleimide-based copolymer is, for example, 35 to 60% by mass, 35 to 57% by mass, 35 to 55% by mass, 35 to 53% by mass, 37 to 60% by mass.
- % 37-57% by mass, 37-55% by mass, 37-53% by mass, 40-60% by mass, 40-57% by mass, 40-55% by mass, 40-53% by mass, 43-60% by mass, It may be 43 to 57% by mass, 43 to 55% by mass, 43 to 53% by mass, 45 to 60% by mass, 45 to 57% by mass, 45 to 55% by mass, or 45 to 53% by mass.
- the maleimide-based copolymer of the present embodiment is mainly composed of an aromatic vinyl-based monomer unit and a maleimide-based monomer unit.
- the total content of the aromatic vinyl-based monomer unit and the maleimide-based monomer unit in the maleimide-based copolymer is, for example, 75% by mass or more, preferably 80% by mass or more, and more preferably 85% by mass. As described above, it is more preferably 90% by mass or more, 95% by mass or more, 97% by mass or more, or 100% by mass.
- the maleimide-based copolymer of the present embodiment may further have a monomer unit other than the aromatic vinyl-based monomer unit and the maleimide-based monomer unit.
- the maleimide-based copolymer of the present embodiment may further have an unsaturated dicarboxylic acid-based monomer unit.
- the maleimide-based copolymer of the present embodiment may further have a vinyl cyanide-based monomer unit.
- the unsaturated dicarboxylic acid-based monomer unit indicates a structural unit (repeating unit) derived from the unsaturated dicarboxylic acid-based monomer.
- Examples of the unsaturated dicarboxylic acid-based monomer include unsaturated dicarboxylic acids and their anhydrides (unsaturated dicarboxylic acid anhydrides).
- the maleimide-based copolymer of the present embodiment may have only one type of unsaturated dicarboxylic acid-based monomer, and may have two or more types.
- Examples of unsaturated dicarboxylic acids include maleic acid and itaconic acid.
- Examples of the unsaturated dicarboxylic acid anhydride include maleic anhydride, itaconic anhydride and the like.
- a maleic acid-based monomer unit (maleic acid unit or maleic anhydride unit) is preferable.
- the content of the unsaturated dicarboxylic acid-based monomer unit in the maleimide-based copolymer may be, for example, 15% by mass or less, the thermal stability of the resin composition is further improved, and the decomposition gas during thermal processing is used. From the viewpoint of more remarkably suppressing the generation, it is preferably 10% by mass or less, more preferably 7% by mass or less, further preferably 5% by mass or less, still more preferably 3% by mass or less, and 0% by mass. May be good.
- the content of the unsaturated dicarboxylic acid-based monomer unit in the maleimide-based copolymer is, for example, 0.1% by mass or more. From the viewpoint that the adhesion to the coating film formed by coating is more likely to be improved, it is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, and 0.7% by mass or more. Alternatively, it may be 1% by mass or more.
- the content of the unsaturated dicarboxylic acid-based monomer unit in the maleimide-based copolymer is 0 to 15% by mass, 0 to 10% by mass, 0 to 7% by mass, 0 to 5% by mass, 0 to 3 Mass%, 0.1 to 15% by mass, 0.1 to 10% by mass, 0.1 to 7% by mass, 0.1 to 5% by mass, 0.1 to 3% by mass, 0.3 to 15% by mass , 0.3-10% by mass, 0.3-7% by mass, 0.3-5% by mass, 0.3-3% by mass, 0.5-15% by mass, 0.5-10% by mass, 0 .5-7% by mass, 0.5-5% by mass, 0.5-3% by mass, 0.7-15% by mass, 0.7-10% by mass, 0.7-7% by mass, 0.7 It may be up to 5% by mass, 0.7 to 3% by mass, 1 to 15% by mass, 1 to 10% by mass, 1 to 7% by mass, 1 to 5% by mass, or 1 to 3% by mass
- the unsaturated dicarboxylic acid-based monomer unit in the maleimide-based copolymer may be formed by polymerizing an unsaturated dicarboxylic acid-based monomer so that its content is within the above range. Further, the unsaturated dicarboxylic acid-based monomer unit in the maleimide-based copolymer is an unsaturated dicarboxylic acid-based monomer unit that has not reacted in the imidization reaction for the formation of the maleimide-based monomer unit. There may be.
- the vinyl cyanide-based monomer unit indicates a structural unit (repeating unit) derived from the vinyl cyanide-based monomer.
- the vinyl cyanide-based monomer may be a monomer having a carbon-carbon double bond and at least one cyano group directly bonded to the double bond.
- vinyl cyanide-based monomer examples include acrylonitrile, methacrylonitrile, fumaronitrile, ⁇ -chloroacrylonitrile, and the like.
- Acrylonitrile is preferable as the vinyl cyanide-based monomer. That is, the acrylonitrile unit is preferable as the vinyl cyanide-based monomer unit.
- the content of the vinyl cyanide-based monomer unit in the maleimide-based copolymer may be, for example, 20% by mass or less, and is preferably 15% by mass from the viewpoint of easily suppressing discoloration of the maleimide-based copolymer.
- it is more preferably 13% by mass or less, further preferably 10% by mass or less, and may be 0% by mass.
- the content of the vinyl cyanide-based monomer unit in the maleimide-based copolymer tends to improve the chemical resistance of the resin composition. From the viewpoint, it may be, for example, 5% by mass or more, or 7% by mass or more. That is, the content of the vinyl cyanide-based monomer unit in the maleimide-based copolymer is, for example, 0 to 20% by mass, 0 to 15% by mass, 0 to 13% by mass, 0 to 10% by mass, and 5 to. It may be 20% by mass, 5 to 15% by mass, 5 to 13% by mass, 5 to 10% by mass, 7 to 20% by mass, 7 to 15% by mass, 7 to 13% by mass, or 7 to 10% by mass.
- the maleimide-based copolymer of the present embodiment may further have a monomer unit other than the above.
- monomer units include (meth) methyl acrylate unit, (meth) ethyl acrylate unit, (meth) butyl acrylate unit, (meth) acrylic acid unit, (meth) acrylate amide unit, and the like. Can be mentioned.
- the content of other monomer units in the maleimide-based copolymer is, for example, 5% by mass or less, preferably 3% by mass or less, more preferably 1% by mass or less, and even 0% by mass. good.
- each monomer unit can be measured by the 13 C-NMR method under the following equipment and measurement conditions.
- Device name JNM-ECX series FT-NMR (manufactured by JEOL Ltd.)
- Solvent Deuterated chloroform Concentration: 2.5% by mass Temperature: 27 ° C Accumulation number: 8000 times
- the aromatic vinyl-based monomer and the maleimide-based monomer may remain in the maleimide-based copolymer of the present embodiment.
- the maleimide-based copolymer of the present embodiment may exist as a composition containing an aromatic vinyl-based monomer and a maleimide-based monomer. That is, it can also be said that the present embodiment relates to a composition containing a maleimide-based copolymer, a vinyl-based monomer, and a maleimide-based monomer.
- the residual amount (C 1 ) of the aromatic vinyl-based monomer is 200 mass ppm or more, whereby the stringing phenomenon in the resin composition is remarkably suppressed. ..
- the residual amount (C 1 ) of the aromatic vinyl-based monomer is 300 mass ppm or more, 400 mass ppm or more, 500 mass ppm or more, 600 mass ppm or more. , 700 mass ppm or more, 800 mass ppm or more, 900 mass ppm or more, or 1000 mass ppm or more.
- the residual amount (C 1 ) of the aromatic vinyl-based monomer is 2000 mass ppm or less, which significantly suppresses the generation of volatile components during heating of the resin composition. From the viewpoint of suppressing the generation of volatile components more remarkably, the residual amount (C 1 ) of the aromatic vinyl-based monomer is 1800 mass ppm or less, 1600 mass ppm or less, 1400 mass ppm or less, 1200 mass ppm or less. Alternatively, it may be 1100 mass ppm or less.
- the residual amount (C 1 ) of the aromatic vinyl-based monomer is, for example, 300 to 1800 mass ppm, 300 to 1600 mass ppm, 300 to 1400 mass ppm, 300 to 1200 mass ppm, 300 to 1100 mass ppm, 400 to 1800 mass ppm, 400 to 1600 mass ppm, 400 to 1400 mass ppm, 400 to 1200 mass ppm, 400 to 1100 mass ppm, 500 to 1800 mass ppm, 500 to 1600 mass ppm, 500 to 1400 mass ppm, 500 to 1200 mass ppm, 500 to 1100 mass ppm, 600 to 1800 mass ppm, 600 to 1600 mass ppm, 600 to 1400 mass ppm, 600 to 1200 mass ppm, 600 to 1100 mass ppm, 700 to 1800 mass ppm, 700 to 1600 mass ppm, 700-1400 mass ppm, 700-1200 mass ppm, 700-1100 mass ppm, 800-1800 mass ppm, 800-1600 mass ppm, 800-1400
- Examples of the aromatic vinyl-based monomer remaining in the maleimide-based copolymer include the aromatic vinyl-based monomer capable of forming the above-mentioned aromatic vinyl-based monomer unit.
- the residual amount (C 2 ) of the maleimide-based monomer is 30 mass ppm or more, whereby the stringing phenomenon in the resin composition is remarkably suppressed. From the viewpoint that the effect of suppressing stringing is more remarkable, the residual amount (C 2 ) of the maleimide-based monomer is 50% by mass or more, 60% by mass or more, 70% by mass or more, 80% by mass or more, 90. It may be mass ppm or more, 100 mass ppm or more, or 110 mass ppm or more.
- the residual amount (C 2 ) of the maleimide-based monomer is 400 mass ppm or less, which significantly causes the generation of volatile components during heating of the resin composition and the deterioration of the hue of the resin composition. It is suppressed. From the viewpoint of more significantly suppressing the generation of volatile components and the deterioration of hue, the residual amount of maleimide-based monomer (C 2 ) is 380 mass ppm or less, 360 mass ppm or less, 340 mass ppm or less, 320 mass. It may be ppm or less, or 300 mass ppm or less.
- the residual amount (C 2 ) of the maleimide-based monomer is, for example, 30 to 400 mass ppm, 30 to 380 mass ppm, 30 to 360 mass ppm, 30 to 340 mass ppm, 30 to 320 mass ppm, 30 to 30 to 300 mass ppm, 50-400 mass ppm, 50-380 mass ppm, 50-360 mass ppm, 50-340 mass ppm, 50-320 mass ppm, 50-300 mass ppm, 60-400 mass ppm, 60-380 mass ppm, 60-360 mass ppm, 60-340 mass ppm, 60-320 mass ppm, 60-300 mass ppm, 70-400 mass ppm, 70-380 mass ppm, 70-360 mass ppm, 70-340 mass ppm, 70-320 mass ppm, 70-300 mass ppm, 80-400 mass ppm, 80-380 mass ppm, 80-360 mass ppm, 80-340 mass ppm, 80-380
- maleimide-based monomer remaining in the maleimide-based copolymer examples include the maleimide-based monomer capable of forming the above-mentioned maleimide-based monomer unit.
- the maleimide-based monomer remaining in the maleimide-based copolymer may be a maleimide-based monomer remaining unreacted in the polymerization reaction of the aromatic vinyl-based monomer and the maleimide-based monomer.
- the maleimide-based monomer remaining in the maleimide-based copolymer is an unsaturated dicarboxylic acid-based monomer remaining unreacted in the polymerization reaction between the aromatic vinyl-based monomer and the unsaturated dicarboxylic acid-based monomer.
- the monomer unit may be imidized.
- the total residual amount (C 1 + C 2 ) of the aromatic vinyl-based monomer and the maleimide-based monomer is 230 mass ppm or more, whereby in the resin composition.
- the stringing phenomenon is significantly suppressed.
- the total residual amount (C 1 + C 2 ) is 300 mass ppm or more, 400 mass ppm or more, 500 mass ppm or more, 600 mass ppm or more, 700 mass ppm.
- it may be 800 mass ppm or more, 900 mass ppm or more, 1000 mass ppm or more, 1100 mass ppm or more, or 1200 mass ppm or more.
- the total residual amount (C 1 + C 2 ) is 2400 mass ppm or less, which significantly suppresses the generation of volatile components during heating of the resin composition. From the viewpoint of suppressing the generation of volatile components more remarkably, 2200 mass ppm or less, 2000 mass ppm or less, 1800 mass ppm or less, 1600 mass ppm or less, 1400 mass ppm or less, 1200 mass ppm or less, 1000 mass ppm or less or It may be 900 mass ppm or less.
- the total residual amount (C 1 + C 2 ) of the aromatic vinyl-based monomer and the maleimide-based monomer is, for example, 230 to 2400 mass ppm, 230 to 2200 mass ppm, 230 to 2000 mass ppm, 230 to 1800.
- the maleimide-based copolymer of the present embodiment may contain a monomer other than the aromatic vinyl-based monomer and the maleimide-based monomer.
- the monomer that may remain include unsaturated dicarboxylic acid-based monomers, vinyl cyanide-based monomers, and the monomers exemplified in the above-mentioned ⁇ other monomer units>.
- the residual amount of the monomer can be appropriately adjusted by a method such as control of the polymerization rate and condition control of the monomer removal step.
- the residual amount of the monomers other than the aromatic vinyl-based monomer and the maleimide-based monomer is, for example, 200 mass ppm or less, and the resin composition volatilizes when heated. From the viewpoint that the generation of the monomer is more remarkably suppressed, it is preferably 100 mass ppm or less, more preferably 50 mass ppm or less, and may be 0 mass ppm.
- the residual amount of the maleimide-based monomer is measured under the following conditions.
- Device name GC-2010 (manufactured by Shimadzu Corporation)
- the temperature rise analysis is performed at a column temperature of 80 ° C. (initial).
- the residual amount of the aromatic vinyl-based monomer is measured by weighing 0.3 to 0.4 g of the resin composition in a 50 mL Erlenmeyer flask as a pretreatment, and using a DMF containing an internal standard (cyclopentanol). Add 10 mL to dissolve, and measure under the following conditions.
- the glass transition temperature (Tg 1 ) of the maleimide-based copolymer is, for example, 155 ° C. or higher, preferably 160 ° C. or higher, and more preferably 165 ° C. or higher.
- the glass transition temperature (Tg 1 ) of the maleimide-based copolymer is, for example, 210 ° C. or lower, preferably 205 ° C. or lower, and more preferably 200 ° C. or lower.
- the glass transition temperature (Tg 1 ) of the maleimide-based copolymer is, for example, 155 to 210 ° C., 155 to 205 ° C., 155 to 200 ° C., 160 to 210 ° C., 160 to 205 ° C., 160 to 200 ° C., 165. It may be ⁇ 210 ° C., 165 to 205 ° C. or 165 to 200 ° C.
- the maleimide-based copolymer of the present embodiment has the above-mentioned structure and has such a glass transition temperature, so that the effect of imparting heat resistance and the effect of suppressing stringing are more remarkable.
- the glass transition temperature (Tg 1 ) is the external glass transition start temperature (Tig) of the maleimide-based copolymer measured by the following equipment and measurement conditions in accordance with JIS K-7121.
- Device name Differential scanning calorimeter Robot DSC6200 (manufactured by Seiko Instruments Inc.) Temperature rise rate: 10 ° C / min
- the weight average molecular weight (Mw) of the maleimide-based copolymer is, for example, 50,000 or more, preferably 70,000 or more, and more preferably 80,000 or more. This tends to further improve the impact resistance of the resin composition.
- the weight average molecular weight (Mw) of the maleimide-based copolymer is, for example, 170000 or less, preferably 160000 or less, and more preferably 150,000 or less.
- the weight average molecular weight (Mw) of the maleimide-based copolymer is, for example, 50,000 to 170000, 50,000 to 160000, 50,000 to 150,000, 70,000 to 170000, 70,000 to 160000, 70,000 to 150,000, 80,000 to 170000, 80,000 to 160000, or It may be 80,000 to 150,000.
- the weight average molecular weight is a polystyrene-equivalent value measured by gel permeation chromatography (GPC), and can be measured under the following conditions.
- Measurement name SYSTEM-21 Shodex (manufactured by Showa Denko KK) Column: 3 PL gel MIXED-B (manufactured by Polymer Laboratories) in series Temperature: 40 ° C Detection: Differential Refractometer Solvent: Tetrahydrofuran Concentration: 2% by mass Calibration curve: Created using standard polystyrene (PS) (manufactured by Polymer Laboratories)
- the method for producing the maleimide-based copolymer is not particularly limited.
- the maleimide-based copolymer can be produced, for example, by subjecting a monomer component containing an aromatic vinyl-based monomer and a maleimide-based monomer to a polymerization reaction. Further, in the maleimide-based copolymer, for example, a monomer component containing an aromatic vinyl-based monomer and an unsaturated dicarboxylic acid-based monomer is subjected to a polymerization reaction, and the aromatic vinyl-based monomer unit and the non-aromatic vinyl-based monomer unit are subjected to the polymerization reaction.
- a polymer (A') having a saturated dicarboxylic acid-based monomer unit is formed, and at least a part of the unsaturated dicarboxylic acid-based monomer unit in the polymer (A') is converted into a maleimide-based monomer unit. It can also be modified (imidized) and manufactured.
- the method of the polymerization reaction is not particularly limited, and for example, known polymerization methods such as bulk polymerization, solution polymerization, and suspension polymerization may be applied.
- the polymerization reaction may be carried out by the reaction between the monomer component and the polymerization initiator.
- the polymerization initiator is not particularly limited as long as it is an initiator capable of initiating the polymerization reaction of the monomer component, and a known polymerization initiator can be used. Examples of the polymerization initiator include organic peroxides and azo compounds.
- organic peroxide examples include 1,1-bis (t-butylperoxycyclohexyl) -3,3,5-trimethylcyclohexane, 2,2-bis (4,4-di-t-butylperoxycyclohexyl) propane, and the like.
- Peroxyketals such as 1,1-bis (t-butylperoxy) cyclohexane, peroxys such as t-butylperoxy-2-ethylhexanonate, t-butylperoxyisopropyl monocarbonate, t-butylperoxatetate, etc. Examples thereof include ester-based, diisopropylbenzene hydroperoxide, cumene hydroperoxide, and hydroperoxide-based such as t-butyl hydroperoxide.
- azo compound examples include 2,2-azobisisobutyronitrile, 2,2-azobis (2,4-dimethylvaleronitrile), 2,2-azobis (2-methylbutyronitrile) and the like. Will be.
- a chain transfer agent or a molecular weight adjusting agent may be used.
- the chain transfer agent or the molecular weight adjusting agent known ones can be used without particular limitation, and for example, mercaptans such as t-dodecyl mercaptan and n-dodecyl mercaptan, turpinolene, ⁇ -methylstyrene dimer and the like can be used.
- the modification of the unsaturated dicarboxylic acid-based monomer unit can be performed, for example, by a reaction between the polymer (A') and ammonia and / or a primary amine (hereinafter, also referred to as a modification reaction).
- the reaction temperature of the denaturation reaction may be, for example, 120 ° C to 250 ° C, preferably 150 ° C to 230 ° C.
- the denaturation reaction may be carried out in the presence of a catalyst.
- a catalyst for example, tertiary amines such as trimethylamine and triethylamine are preferable, and trimethylamine is particularly preferable.
- the amount of the catalyst may be, for example, 0.01 to 2 parts by mass with respect to 100 parts by mass of the total amount of ammonia and the primary amine.
- the copolymerization of the aromatic vinyl-based monomer and the unsaturated dicarboxylic acid-based monomer has strong alternating copolymerizability, so that the aromatic vinyl-based monomer is used at the initial stage of polymerization.
- the monomer and the unsaturated dicarboxylic acid-based monomer are easily polymerized at a molar ratio of 1: 1. Therefore, for example, when the amount (mol) of the aromatic vinyl-based monomer charged is larger than the amount (mol) of the unsaturated dicarboxylic acid-based monomer charged, if the entire amount is subjected to the reaction from the initial stage of polymerization, it will occur in the latter stage of polymerization. In some cases, a copolymer having a large proportion of aromatic vinyl-based monomer units is likely to be produced, the composition distribution becomes large, and the compatibility with the thermoplastic resin decreases.
- the polymer (A') is, for example, in a reaction solution containing an aromatic vinyl-based monomer and a part of an unsaturated dicarboxylic acid-based monomer, in addition to the unsaturated dicarboxylic acid-based monomer. It may be produced by carrying out a polymerization reaction while substituting the portions. This makes it easier to obtain a maleimide-based copolymer having a small composition distribution and higher compatibility with a thermoplastic resin.
- the reaction rate and the polymerization rate of the polymerization reaction can be controlled by the polymerization temperature, the polymerization time, the amount of the polymerization initiator, and the addition rate of the monomer.
- the residual amount of the aromatic vinyl-based monomer and the maleimide-based monomer can be adjusted by controlling the polymerization rate.
- the residual amount of the aromatic vinyl-based monomer and / or the residual amount of the maleimide-based monomer exceeds a predetermined range from the maleimide-based copolymer to the aromatic vinyl-based monomer. At least a part of the unit and the maleimide-based monomer unit is removed to obtain a maleimide-based copolymer in which the residual amount of the aromatic vinyl-based monomer and the residual amount of the maleimide-based monomer are within a predetermined range. It may have a polymer removal step.
- the method for removing the monomer is not particularly limited, and for example, a method using a vacuum devolatilization tank equipped with a heater, a method using a devolatilization extruder with a vent, and a method of combining them. And so on.
- the threading inhibitor of the present embodiment is made of the above-mentioned maleimide-based copolymer.
- the thread pulling inhibitor of the present embodiment By adding the thread pulling inhibitor of the present embodiment to the thermoplastic resin, it is possible to suppress the thread pulling phenomenon at the time of hot plate welding of the thermoplastic resin. That is, according to the thread pulling inhibitor of the present embodiment, it is possible to obtain a resin composition in which the thread pulling phenomenon at the time of hot plate welding is suppressed by addition to the thermoplastic resin.
- the stringing inhibitor of the present embodiment can also impart heat resistance to the thermoplastic resin.
- the amount of the threading inhibitor added may be, for example, 1% by mass or more with respect to the total 100% by mass of the thermoplastic resin and the threading inhibitor, which is preferable from the viewpoint of more significantly suppressing the threading phenomenon. Is 3% by mass or more, more preferably 5% by mass or more, still more preferably 10% by mass or more. Further, the amount of the thread pulling inhibitor added may be, for example, 50% by mass or less with respect to the total 100% by mass of the thermoplastic resin and the threading inhibitor, which is preferable from the viewpoint of further improving the impact resistance. Is 40% by mass or less, more preferably 30% by mass or less, still more preferably 20% by mass or less.
- the amount of the thread pulling inhibitor added is, for example, 1 to 50% by mass, 1 to 40% by mass, 1 to 30% by mass, 1 to 20 with respect to the total 100% by mass of the thermoplastic resin and the threading inhibitor.
- thermoplastic resin is not particularly limited as long as it is a resin to which hot plate welding can be applied, but from the viewpoint of excellent compatibility with the threading inhibitor, for example, ABS resin (acrylonitrile-butadiene-styrene copolymer), Selected from the group consisting of ASA resin (acrylonitrile-ethylene / propylene rubber-styrene copolymer), AES resin (acrylonitrile-ethylene / propylene rubber-styrene copolymer resin) and SAN resin (styrene-acrylonitrile copolymer). It's okay.
- One type of thermoplastic resin may be used alone, or two or more types may be mixed and used.
- the resin composition of the present embodiment contains the above-mentioned maleimide-based copolymer (threading inhibitor) and a thermoplastic resin.
- the content of the maleimide-based copolymer in the resin composition may be, for example, 1% by mass or more, and from the viewpoint of more remarkably suppressing the stringing phenomenon, it is preferably 3% by mass or more, more preferably 5% by mass. % Or more, more preferably 10% by mass or more. Further, the content of the maleimide-based copolymer in the resin composition may be, for example, 50% by mass or less, and from the viewpoint of further improving the impact resistance, it is preferably 40% by mass or less, more preferably 30% by mass. % Or less, more preferably 20% by mass or less.
- the content of the maleimide-based copolymer in the resin composition is, for example, 1 to 50% by mass, 1 to 40% by mass, 1 to 30% by mass, 1 to 20% by mass, 3 to 50% by mass, 3 to. 40% by mass, 3 to 30% by mass, 3 to 20% by mass, 5 to 50% by mass, 5 to 40% by mass, 5 to 30% by mass, 5 to 20% by mass, 10 to 50% by mass, 10 to 40% by mass. %, 10 to 30% by mass or 10 to 20% by mass.
- thermoplastic resin is not particularly limited as long as it is a resin to which hot plate welding can be applied, but from the viewpoint of excellent compatibility with the threading inhibitor, for example, ABS resin (acrylonitrile-butadiene-styrene copolymer), Selected from the group consisting of ASA resin (acrylonitrile-ethylene / propylene rubber-styrene copolymer), AES resin (acrylonitrile-ethylene / propylene rubber-styrene copolymer resin) and SAN resin (styrene-acrylonitrile copolymer). It's okay.
- One type of thermoplastic resin may be used alone, or two or more types may be mixed and used.
- the content of the thermoplastic resin in the resin composition may be, for example, 50% by mass or more, and from the viewpoint of further improving the impact resistance, it is preferably 60% by mass or more, more preferably 70% by mass or more, and further. It is preferably 80% by mass or more. Further, the content of the thermoplastic resin in the resin composition may be, for example, 99% by mass or less, and from the viewpoint of more remarkably suppressing the stringing phenomenon, it is preferably 97% by mass or less, more preferably 95% by mass. It is mass% or less, more preferably 90% by mass or less.
- the content of the thermoplastic resin in the resin composition is, for example, 50 to 99% by mass, 50 to 97% by mass, 50 to 95% by mass, 50 to 90% by mass, 60 to 99% by mass, 60 to 97. Mass%, 60-95% by mass, 60-90% by mass, 70-99% by mass, 70-97% by mass, 70-95% by mass, 70-90% by mass, 80-99% by mass, 80-97% by mass , 80-95% by mass or 80-90% by mass.
- the resin composition of the present embodiment can be suitably used for hot plate welding because the stringing phenomenon is suppressed by blending the maleimide-based copolymer. That is, the resin composition of the present embodiment may be a hot plate welding resin composition.
- the resin composition of the present embodiment is preferably excellent in hue (that is, low in yellowness (YI)).
- the yellowness (YI) of the resin composition is, for example, 50 or less, preferably 40 or less, and more preferably 35 or less.
- the yellowness (YI) of the resin composition is measured using a colorimeter.
- the resin composition of the present embodiment is preferably excellent in impact resistance (that is, has a large Charpy impact strength).
- the Charpy impact strength of the resin composition is, for example, 10 kJ / m 2 or more, preferably 15 kJ / m 2 or more, and more preferably 20 kJ / m 2 or more.
- the upper limit of Charpy impact strength is not particularly limited.
- the Charpy impact strength of the resin composition may be, for example, 80 kJ / m 2 or less, 60 kJ / m 2 or less, or 40 kJ / m 2 or less.
- the Charpy impact strength of the resin composition is, for example, 10 to 80 kJ / m 2 , 10 to 60 kJ / m 2 , 10 to 40 kJ / m 2 , 15 to 80 kJ / m 2 , 15 to 60 kJ / m 2 , 15 to. It may be 40 kJ / m 2 , 20 to 80 kJ / m 2 , 20 to 60 kJ / m 2 or 20 to 40 kJ / m 2 .
- the Charpy impact strength of the resin composition is measured by a method according to JIS K-7111.
- the resin composition of the present embodiment has excellent fluidity (that is, a large value of melt mass flow rate).
- the melt mass flow rate of the resin composition is, for example, 1 g / 10 minutes or more, preferably 3 g / 10 minutes or more, and more preferably 5 g / 10 minutes or more.
- the upper limit of the melt mass flow rate is not particularly limited.
- the melt mass flow rate of the resin composition may be, for example, 40 g / 10 minutes or less, 30 g / 10 minutes or less, or 25 g / 10 minutes or less.
- the melt mass flow rate of the resin composition is, for example, 1 to 40 g / 10 minutes, 1 to 30 g / 10 minutes, 1 to 25 g / 10 minutes, 3 to 40 g / 10 minutes, 3 to 30 g / 10 minutes, 3 to. It may be 25 g / 10 minutes, 5 to 40 g / 10 minutes, 5 to 30 g / 10 minutes, or 5 to 25 g / 10 minutes.
- the melt mass flow rate of the resin composition indicates a value measured under the conditions of 220 ° C. and 98 N load in accordance with JIS K7210.
- the resin composition of the present embodiment is preferably excellent in heat resistance (that is, has a high Vicat softening point).
- the Vicat softening point of the resin composition is, for example, 104 ° C. or higher, preferably 106 ° C. or higher, and more preferably 108 ° C. or higher.
- the upper limit of the Vicat softening point is not particularly limited, but may be, for example, 130 ° C. or lower, 125 ° C. or lower, or 120 ° C. or lower from the viewpoint of lowering the temperature at the time of hot plate welding and excellent workability.
- the Vicat softening points of the resin composition are, for example, 104 to 130 ° C, 104 to 125 ° C, 104 to 120 ° C, 106 to 130 ° C, 106 to 125 ° C, 106 to 120 ° C, 108 to 130 ° C, 108 to. It may be 125 ° C or 108-120 ° C.
- the Vicat softening point of the resin composition indicates a value measured by the 50 method (load 50 N, heating rate 50 ° C./hour) in accordance with JIS K7206.
- the resin composition of the present embodiment may further contain components other than the maleimide-based copolymer and the thermoplastic resin.
- Other components include, for example, impact resistant modifiers, fluidity modifiers, hardness modifiers, antioxidants, matting agents, flame retardants, flame retardant aids, mold release agents, and slippering agents.
- the resin composition of the present embodiment may be mixed with an inorganic material and used as a composite material.
- the inorganic material include an inorganic filler such as glass fiber, talc, and mica, a heat radiating material, and an electromagnetic wave absorbing material.
- examples of the inorganic material include carbon black, titanium oxide, and pigments.
- the method for producing the resin composition of the present embodiment is not particularly limited, and for example, it can be produced by mixing each of the above-mentioned components at a high temperature.
- the temperature at the time of mixing may be any temperature as long as the maleimide-based copolymer and the thermoplastic resin flow and can be mixed.
- the mixing method is not particularly limited, and for example, a known method using a single-screw extruder, a twin-screw extruder, a Banbury mixer, a kneader, or the like can be appropriately selected.
- the resin composition of the present embodiment can be used alone or as a composite material mixed with an inorganic material in the production of a resin molded product. That is, a resin molded product is manufactured by flowing the resin composition of the present embodiment at a high temperature and molding it.
- the temperature at the time of molding may be any temperature as long as the resin composition flows and can be molded.
- the molding temperature is preferably V 1 + 100 ° C. or higher, more preferably V 1 + 120 ° C. or higher, and V 1 + 130 ° C. The above is more preferable.
- the molding temperature may be, for example, V 1 + 170 ° C. or lower, preferably V 1 + 160 ° C. or lower, and more preferably V 1 + 150 ° C. or lower.
- the molding temperature is, for example, V 1 + 100 ° C to V 1 + 170 ° C, V 1 + 100 ° C to V 1 + 160 ° C, V 1 + 100 ° C to V 1 + 150 ° C, V 1 + 120 ° C to V 1 + 170 ° C, V 1 At + 120 ° C to V 1 + 160 ° C, V 1 + 120 ° C to V 1 + 150 ° C, V 1 + 130 ° C to V 1 + 170 ° C, V 1 + 130 ° C to V 1 + 160 ° C, or V 1 + 130 ° C to V 1 + 150 ° C. It may be there.
- the molding method is not particularly limited, and for example, it can be appropriately selected from known molding methods such as extrusion molding, injection molding, blow molding, and foam molding. Since the resin composition of the present embodiment has excellent fluidity at high temperatures, it has excellent moldability and is particularly suitable for injection molding.
- the use of the resin molded product containing the resin composition of the present embodiment is not particularly limited, and for example, it can be suitably used for applications such as automobile interior / exterior parts, home appliances, office equipment parts, and building materials.
- the resin composition of the present embodiment can be suitably used for hot plate welding.
- the resin molded product containing the resin composition of the present embodiment can be easily adhered to another member or the like by hot plate welding on the resin surface containing the resin composition of the present embodiment.
- the conditions for hot plate welding are not particularly limited, and for example, the conditions described in the method for manufacturing a molded product described later can be appropriately adopted.
- the method for producing a molded product of the present embodiment includes a step of joining a first resin surface and a second resin surface by hot plate welding.
- at least one of the first resin surface and the second resin surface contains the above resin composition.
- only one of the first resin surface and the second resin surface may contain the above resin composition, and both the first resin surface and the second resin surface are the above resin composition. May include.
- the first resin surface and the second resin surface are preferably surfaces mainly composed of the above resin composition (for example, 90% by mass or more, preferably 95% by mass or more).
- the temperature at the time of hot plate welding may be, for example, V 1 + 125 ° C. or higher when the Vicat softening point of the resin material (for example, the above resin composition) constituting the resin surface is V 1 (° C.). From the viewpoint of shortening the welding time, V 1 + 130 ° C. or higher is preferable, V 1 + 135 ° C. or higher is more preferable, and V 1 + 140 ° C. or higher is even more preferable.
- the temperature at the time of hot plate welding may be, for example, V 1 + 170 ° C. or lower, preferably V 1 + 16 ° C. or lower, and more preferably V 1 + 160 ° C. or lower from the viewpoint of preventing hot plate contamination.
- the temperature at the time of hot plate welding is, for example, V 1 + 125 ° C to V 1 + 170 ° C, V 1 + 125 ° C to V 1 + 16 ° C, V 1 + 125 ° C to V 1 + 160 ° C, V 1 + 130 ° C to V 1 +170. ° C, V 1 + 130 ° C to V 1 + 16 ° C, V 1 + 130 ° C to V 1 + 160 ° C, V 1 + 135 ° C to V 1 + 170 ° C, V 1 + 135 ° C to V 1 + 16 ° C, V 1 + 135 ° C to V 1 + 160 ° C., V 1 + 140 ° C. to V 1 + 170 ° C., V 1 + 140 ° C. to V 1 + 165 ° C., or V 1 + 140 ° C. to V 1 + 160 ° C.
- a molded product of the present embodiment has a welded portion in which a first resin surface and a second resin surface are welded, and at least one of the first resin surface and the second resin surface has a welded portion.
- a molded product containing the above resin composition can be obtained.
- the use of such a molded product is not particularly limited, and for example, it can be suitably used for applications such as automobile interior / exterior parts, home appliances, office equipment parts, and building materials.
- the maleimide-based copolymer A-1 was produced by the following method. In an autoclave with a volume of about 120 liters equipped with a stirrer, 65 parts by mass of styrene, 7 parts by mass of maleic acid anhydride, 0.05 parts by mass of 2,4-diphenyl-4-methyl-1-pentene, and a non-polymerizable solvent. After charging 25 parts by mass of a certain methyl ethyl ketone and replacing the inside of the system with nitrogen gas, the temperature was raised to 92 ° C., 28 parts by mass of maleic acid anhydride and 0.3 of t-butylperoxy-2-ethylhexanoate.
- a solution prepared by dissolving 100 parts by mass of methyl ethyl ketone (non-polymerizable solvent) in 100 parts by mass was continuously added over 8 hours. After the addition, 0.04 part by mass of t-butylperoxy-2-ethylhexanoate was further added, the temperature was raised to 120 ° C., and the reaction was carried out for 1 hour to complete the polymerization. Then, 32 parts by mass of aniline and 0.6 parts by mass of triethylamine were added to the polymerization solution, and the mixture was reacted at 140 ° C. for 7 hours. After the reaction was completed, the imidization reaction solution was put into a vent type screw extruder to remove volatile components to obtain a pellet-shaped maleimide-based copolymer A-1.
- GC-12A manufactured by Shimadzu Corporation
- Detector FID Column: 3m glass column (filler: liquid phase PEG20M + TCEP (15 + 5)) Temperature: INJ150 °C DET150 °C Column 115 °C Injection volume: 1 ⁇ L (Maleimide-based monomer) The residual amount of the maleimide-based monomer shows a value measured under the following conditions.
- the temperature rise analysis is performed at a column temperature of 80 ° C. (initial).
- the glass transition temperature (Tg1) is the external glass transition start temperature (Tig) measured by the following devices and measurement conditions in accordance with JIS K-7121.
- Device name Differential scanning calorimeter Robot DSC6200 (manufactured by Seiko Instruments Inc.) Temperature rise rate: 10 ° C / min ⁇ Yellowness> Measured according to JIS K-7373.
- the specific procedure is as follows. Dissolve 1 g of the test piece in 25 mL of tetrahydrofuran. After melting, transfer to a square cell for measurement.
- the color difference was obtained by using a transmission method using a CIE standard D65 light source under the conditions of a temperature of 23 ° C. and a humidity of 50%, using a square cell of a tetrahydrofuran solution as a blank, and the value was defined as yellowness.
- the maleimide-based copolymer A-2 was produced by the following method. In an autoclave having a volume of about 120 liters equipped with a stirrer, 65 parts by mass of styrene, 7 parts by mass of N-phenylmaleimide, 0.05 parts by mass of 2,4-diphenyl-4-methyl-1-pentene, and 25 parts by mass of methyl ethyl ketone were added. After charging, the gas phase portion was replaced with nitrogen gas, and then the temperature was raised to 92 ° C. over 40 minutes with stirring.
- a solution prepared by dissolving 28 parts by mass of N-phenylmaleimide and 0.3 parts by mass of t-butylperoxy-2-ethylhexanoate in 100 parts by mass of methyl ethyl ketone was continuously prepared over 8 hours while maintaining 92 ° C. after raising the temperature. Was added. After the addition, 0.04 part by mass of t-butylperoxy-2-ethylhexanoate was further added, the temperature was raised to 120 ° C., and the reaction was carried out for 1 hour to complete the polymerization. After completion of the reaction, the polymer solution was put into a vent type screw extruder to remove volatile components to obtain a pellet-shaped maleimide-based copolymer A-2.
- Table 1 The analysis results of the obtained maleimide-based copolymer A-2 are shown in Table 1.
- the maleimide-based copolymer A-3 was produced by the following method. In an autoclave having a volume of about 120 liters equipped with a stirrer, 65 parts by mass of styrene, 7 parts by mass of maleic acid anhydride, 0.05 parts by mass of 2,4-diphenyl-4-methyl-1-pentene, and 25 parts by mass of methyl ethyl ketone were added.
- the maleimide-based copolymer A-4 was produced by the following method. 55 parts by mass of styrene, 25 parts by mass of maleic acid anhydride, 0.05 part by mass of 2,4-diphenyl-4-methyl-1-pentene and 75 parts by mass of methyl ethyl ketone in an autoclave having a volume of about 120 liters equipped with a stirrer. After charging and replacing the inside of the system with nitrogen gas, the temperature was raised to 92 ° C., and 20 parts by mass of maleic acid anhydride and 0.2 parts by mass of t-butylperoxy-2-ethylhexanoate were added to 100 parts by mass of methyl ethyl ketone.
- the dissolved solution was continuously added over 8 hours. After the addition, 0.04 part by mass of t-butylperoxy-2-ethylhexanoate was further added, the temperature was raised to 120 ° C., and the reaction was carried out for 1 hour to complete the polymerization. Then, 41 parts by mass of aniline and 0.8 parts by mass of triethylamine were added to the polymerization solution, and the mixture was reacted at 140 ° C. for 7 hours. After the reaction was completed, the imidization reaction solution was put into a vent type screw extruder to remove volatile components to obtain a pellet-shaped maleimide-based copolymer A-4. The analysis results of the obtained maleimide-based copolymer A-4 are shown in Table 1.
- Example 1-5 The maleimide-based copolymer A-5 was produced by the following method. In an autoclave having a volume of about 120 liters equipped with a stirrer, 75 parts by mass of styrene, 5 parts by mass of maleic acid anhydride, 0.15 parts by mass of 2,4-diphenyl-4-methyl-1-pentene, and 25 parts by mass of methyl ethyl ketone were added.
- the maleimide-based copolymer A-6 was produced by the following method. In an autoclave with a volume of about 120 liters equipped with a stirrer, 67 parts by mass of styrene, 5 parts by mass of maleic acid anhydride, 7 parts by mass of acrylonitrile, 0.05 parts by mass of 2,4-diphenyl-4-methyl-1-pentene, After charging 25 parts by mass of methyl ethyl ketone and replacing the inside of the system with nitrogen gas, the temperature was raised to 92 ° C., 21 parts by mass of maleic acid anhydride and 0.2 parts by mass of t-butylperoxy-2-ethylhexanoate.
- a solution prepared by dissolving parts in 100 parts by mass of methyl ethyl ketone was continuously added over 8 hours. After the addition, 0.04 part by mass of t-butylperoxy-2-ethylhexanoate was further added, the temperature was raised to 120 ° C., and the reaction was carried out for 1 hour to complete the polymerization. Then, 24 parts by mass of aniline and 0.4 parts by mass of triethylamine were added to the polymerization solution, and the mixture was reacted at 140 ° C. for 7 hours. After the reaction was completed, the imidization reaction solution was put into a vent type screw extruder to remove volatile components to obtain a pellet-shaped maleimide-based copolymer A-6. The analysis results of the obtained maleimide-based copolymer A-6 are shown in Table 1.
- the maleimide-based copolymer X-1 was produced by the following method. In an autoclave having a volume of about 120 liters equipped with a stirrer, 65 parts by mass of styrene, 7 parts by mass of maleic acid anhydride, 0.05 parts by mass of 2,4-diphenyl-4-methyl-1-pentene, and 25 parts by mass of methyl ethyl ketone were added.
- the maleimide-based copolymer X-2 was produced by the following method. In an autoclave having a volume of about 120 liters equipped with a stirrer, 80 parts by mass of styrene, 4 parts by mass of maleic acid anhydride, 0.3 parts by mass of 2,4-diphenyl-4-methyl-1-pentene, and 25 parts by mass of methyl ethyl ketone were added.
- the maleimide-based copolymer X-3 was produced by the following method. In an autoclave having a volume of about 120 liters equipped with a stirrer, 65 parts by mass of styrene, 7 parts by mass of maleic acid anhydride, 0.05 parts by mass of 2,4-diphenyl-4-methyl-1-pentene, and 25 parts by mass of methyl ethyl ketone were added.
- the maleimide-based copolymer X-4 was produced by the following method. In an autoclave having a volume of about 120 liters equipped with a stirrer, 50 parts by mass of styrene, 50 parts by mass of maleic acid anhydride, 0.05 parts by mass of 2,4-diphenyl-4-methyl-1-pentene, and 75 parts by mass of methyl ethyl ketone were added.
- Example 2-1 A resin composition was obtained by the following method. 15% by mass of the maleimide-based copolymer (A-1) obtained above and 85% by mass of a commercially available ABS resin "GR-3000" (manufactured by Denka Co., Ltd.) are used in a twin-screw extruder TEM-35B. (Manufactured by Toshiba Machine Co., Ltd.) was mixed and extruded to obtain a pelletized resin composition.
- ABS resin "GR-3000" manufactured by Denka Co., Ltd.
- TEM-35B manufactured by Toshiba Machine Co., Ltd.
- the obtained resin composition was evaluated by the following method. The results are shown in Table 2.
- ⁇ Evaluation of thread pulling property> For the stringability, a test piece with dimensions of 80 mm ⁇ 10 mm ⁇ 4 mm used for the bending test of JIS K-7171 was used, pressed against a hot plate at 250 ° C. with a 1 kg load for 10 seconds, and then pulled up at a speed of 10 cm / sec. It was evaluated in the following five stages according to the threading length of the time.
- AA The thread can be cut in 1.0 cm or less. A: It cuts from 1.0 cm to 4.0 cm. B: It cuts at 4.0 cm to 10.0 cm.
- C Pull the thread 10 cm or more.
- ⁇ Measurement of yellowness (YI)> A plate (9 cm x 5 cm) was molded at a molding temperature of 240 ° C. by an injection molding machine (IS-50EP, manufactured by Toshiba Machine Co., Ltd.), and the yellowness YI was measured by a color difference meter (COLOR-7e 2 , manufactured by Kurabo Industries Ltd.). .. ⁇ Measurement of volatile matter> The same measurement as the measurement of the ⁇ residual monomer amount> of the aromatic vinyl-based monomer and the maleimide-based monomer of the maleimide-based copolymer was carried out, and the total amount was taken as the volatile matter.
- ⁇ Measurement of Charpy impact strength> According to JIS K-7111, a test piece with a notch was used, and the striking direction was edgewise and measured at a relative humidity of 50% and an atmospheric temperature of 23 ° C.
- the measuring machine used was a digital impact tester manufactured by Toyo Seiki Seisakusho.
- ⁇ Measurement of Vicat softening point> According to JIS K7206, the measurement was performed by the 50 method (load 50 N, heating rate 50 ° C./hour) using a test piece of 10 mm ⁇ 10 mm ⁇ 4 mm.
- an HDT & VSPT test device manufactured by Toyo Seiki Seisakusho Co., Ltd. was used.
- Example 2-2 to 2-6 Same as Example 2-1 except that the maleimide-based copolymer A-2, A-3, A-4, A-5 or A-6 was used instead of the maleimide-based copolymer A-1.
- a resin composition was obtained.
- the obtained resin composition was evaluated by the same method as in Example 2-1. The results are shown in Table 2.
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Abstract
Description
本実施形態のマレイミド系共重合体は、40~65質量%の芳香族ビニル系単量体単位、及び、35~60質量%のマレイミド系単量体単位を有する。また、本実施形態のマレイミド系共重合体において、芳香族ビニル系単量体の残存量は200~2000質量ppmであり、マレイミド系単量体の残存量は30~400質量ppmである。
芳香族ビニル系単量体単位は、芳香族ビニル系単量体に由来する構造単位(繰り返し単位)を示す。芳香族ビニル系単量体は、炭素-炭素二重結合と当該二重結合に直接結合する少なくとも一つの芳香環とを有する単量体であってよく、好ましくは、芳香環に-C(R)=CH2(Rは水素原子又はメチル基)で表される基が結合した単量体である。本実施形態のマレイミド系共重合体は、芳香族ビニル系単量体単位を1種のみ有していてよく、2種以上有していてもよい。
スチレン、及び、スチレンが有する水素原子の一部が置換基で置換されたスチレン誘導体からなる群より選択されるスチレン系単量体、
1-ビニルナフタレン、2-ビニルナフタレン、及び、これらが有する水素原子の一部が置換基で置換されたビニルナフタレン誘導体からなる群より選択されるビニルナフタレン系単量体、等が挙げられる。
マレイミド系単量体単位は、マレイミド系単量体に由来する構造単位(繰り返し単位)を示す。マレイミド系単量体は、例えば、下記式(1)で表される基を少なくとも一つ有する単量体であってよい。なお、マレイミド系単量体単位は、必ずしもマレイミド系単量体から形成されたものである必要はなく、例えば、後述の不飽和ジカルボン酸系単量体単位を、アンモニア又は第1級アミンでイミド化して形成されたものであってもよい。本実施形態のマレイミド系共重合体は、マレイミド系単量体単位を1種のみ有していてよく、2種以上有していてもよい。
N-メチルマレイミド、N-エチルマレイミド、N-n-ブチルマレイミド、N-n-オクチルマレイミド等のN-アルキルマレイミド;
N-シクロヘキシルマレイミド等のN-シクロアルキルマレイミド;
N-フェニルマレイミド、N-(4-メトキシフェニル)マレイミド等のN-アリールマレイミド;
等が挙げられる。
不飽和ジカルボン酸系単量体単位は、不飽和ジカルボン酸系単量体に由来する構造単位(繰り返し単位)を示す。不飽和ジカルボン酸系単量体としては、例えば、不飽和ジカルボン酸及びその無水物(不飽和ジカルボン酸無水物)等が挙げられる。本実施形態のマレイミド系共重合体は、不飽和ジカルボン酸系単量体を1種のみ有していてよく、2種以上有していてもよい。
シアン化ビニル系単量体単位は、シアン化ビニル系単量体に由来する構造単位(繰り返し単位)を示す。シアン化ビニル系単量体は、炭素-炭素二重結合と当該二重結合に直接結合する少なくとも一つのシアノ基とを有する単量体であってよい。
本実施形態のマレイミド系共重合体は、上記以外の他の単量体単位を更に有していてもよい。他の単量体単位としては、例えば、(メタ)アクリル酸メチル単位、(メタ)アクリル酸エチル単位、(メタ)アクリル酸ブチル単位、(メタ)アクリル酸単位、(メタ)アクリル酸アミド単位等が挙げられる。
装置名:JNM-ECXシリーズFT-NMR(日本電子株式会社製)
溶媒:重水素化クロロホルム
濃度:2.5質量%
温度:27℃
積算回数:8000回
本実施形態のマレイミド系共重合体には、芳香族ビニル系単量体及びマレイミド系単量体を残存していてよい。言い換えると、本実施形態のマレイミド系共重合体は、芳香族ビニル系単量体及びマレイミド系単量体を含む組成物として存在していてよい。すなわち、本実施形態は、マレイミド系共重合体と、ビニル系単量体と、マレイミド系単量体と、を含む組成物に関するということもできる。
装置名:GC-2010(島津製作所製)
カラム:キャピラリーカラムDB-5MS(フェニルアレンポリマー)
温度 :注入口280℃、検出器280℃
カラム温度80℃(初期)で昇温分析を行う。
(昇温分析条件)
80℃:ホールド12分
80~280℃:20℃/分で昇温10分
280℃:ホールド10分
検出器:FID
手順 :試料0.5gをウンデカン(内部標準物質)入り1,2-ジクロロエタン溶液(0.014g/L)5mlに溶解させる。その後、n-ヘキサン5mlを加えて振とう器で10~15分間振とうし、析出させる。ポリマーを析出・沈殿させた状態で上澄み液のみをGCに注入する。得られた単量体のピーク面積から、内部標準物質より求めた係数を用いて、定量値を算出する。
装置名:GC-12A(株式会社島津製作所製)
検出器:FID
カラム:3mガラスカラム(充填剤:液相PEG20M+TCEP(15+5))
温度:INJ150℃ DET150℃ カラム 115℃
注入量:1μL
マレイミド系共重合体のガラス転移温度(Tg1)は、例えば155℃以上であり、好ましくは160℃以上、より好ましくは165℃以上である。また、マレイミド系共重合体のガラス転移温度(Tg1)は、例えば210℃以下であり、好ましくは205℃以下、より好ましくは200℃以下である。すなわち、マレイミド系共重合体のガラス転移温度(Tg1)は、例えば、155~210℃、155~205℃、155~200℃、160~210℃、160~205℃、160~200℃、165~210℃、165~205℃又は165~200℃であってよい。本実施形態のマレイミド系共重合体は、上述の構成を有し、且つ、このようなガラス転移温度を有することで、耐熱性付与効果及び糸曳き抑制効果がより顕著に奏される。
装置名:示差走査熱量計 Robot DSC6200(セイコーインスツル株式会社製)
昇温速度:10℃/分
測定名:SYSTEM-21 Shodex(昭和電工株式会社製)
カラム:PL gel MIXED-B(ポリマーラボラトリーズ社製)を3本直列
温度:40℃
検出:示差屈折率
溶媒:テトラヒドロフラン
濃度:2質量%
検量線:標準ポリスチレン(PS)(ポリマーラボラトリーズ社製)を用いて作成
マレイミド系共重合体の製造方法は特に限定されない。マレイミド系共重合体は、例えば、芳香族ビニル系単量体及びマレイミド系単量体を含む単量体成分を重合反応に供して製造することができる。また、マレイミド系共重合体は、例えば、芳香族ビニル系単量体及び不飽和ジカルボン酸系単量体を含む単量体成分を重合反応に供して、芳香族ビニル系単量体単位及び不飽和ジカルボン酸系単量体単位を有する重合体(A’)を形成し、当該重合体(A’)中の不飽和ジカルボン酸系単量体単位の少なくとも一部をマレイミド系単量体単位に変性(イミド化)して、製造することもできる。
本実施形態の糸曳き抑制剤は、上記マレイミド系共重合体からなる。本実施形態の糸曳き抑制剤は、熱可塑性樹脂に添加することで、熱可塑性樹脂の熱板溶着時の糸曳き現象を抑制することができる。すなわち、本実施形態の糸曳き抑制剤によれば、熱可塑性樹脂への添加により、熱板溶着時の糸曳き現象が抑制された樹脂組成物を得ることができる。
本実施形態の樹脂組成物は、上記マレイミド系共重合体(糸曳き抑制剤)と熱可塑性樹脂と、を含有する。
本実施形態の成形品の製造方法は、第一の樹脂面と第二の樹脂面とを熱板溶着により接合する工程を備える。本実施形態において、第一の樹脂面及び第二の樹脂面の少なくとも一方は、上記樹脂組成物を含む。これにより、上記樹脂組成物を含む樹脂面において、熱板溶着時の糸曳き現象が抑制される。
以下の方法でマレイミド系共重合体A-1を製造した。
攪拌機を備えた容積約120リットルのオートクレーブ中に、スチレン65質量部、マレイン酸無水物7質量部、2、4-ジフェニル-4-メチル-1-ペンテン0.05質量部、非重合性溶媒であるメチルエチルケトン25質量部を仕込み、系内を窒素ガスで置換した後、温度を92℃に昇温し、マレイン酸無水物28質量部とt-ブチルパーオキシ-2-エチルヘキサノエート0.3質量部をメチルエチルケトン(非重合性溶媒)100質量部に溶解した溶液を8時間かけて連続的に添加した。添加後、さらにt-ブチルパーオキシ-2-エチルヘキサノエート0.04質量部を添加して120℃に昇温し、1時間反応させて重合を終了させた。その後、重合液にアニリン32質量部、トリエチルアミン0.6質量部を加え140℃で7時間反応させた。反応終了後のイミド化反応液をベントタイプスクリュー式押出機に投入し、揮発分を除去してペレット状のマレイミド系共重合体A-1を得た。
<各単量体単位の含有量>
13C-NMR法により、以下の装置及び測定条件で測定した。
装置名:JNM-ECXシリーズFT-NMR(日本電子株式会社製)
溶媒:重水素化クロロホルム
濃度:2.5質量%
温度:27℃
積算回数:8000回
<残存単量体量>
(芳香族ビニル系単量体)
芳香族ビニル系単量体の残存量は、前処理として、マレイミド系共重合体を50mLの三角フラスコに0.3~0.4g秤量し、内部標準(シクロペンタノール)入りDMFを10mL加え溶解し、次の条件にて測定を行った。
装置名:GC-12A(株式会社島津製作所製)
検出器:FID
カラム:3mガラスカラム(充填剤:液相PEG20M+TCEP(15+5))
温度:INJ150℃ DET150℃ カラム 115℃
注入量:1μL
(マレイミド系単量体)
マレイミド系単量体の残存量は、下記条件で測定される値を示す。
装置名:GC-2010(島津製作所製)
カラム:キャピラリーカラムDB-5MS(フェニルアレンポリマー)
温度 :注入口280℃、検出器280℃
カラム温度80℃(初期)で昇温分析を行う。
(昇温分析条件)
80℃:ホールド12分
80~280℃:20℃/分で昇温10分
280℃:ホールド10分
検出器:FID
手順:マレイミド系共重合体0.5gをウンデカン(内部標準物質)入り1,2-ジクロロエタン溶液(0.014g/L)5mlに溶解させる。その後、n-ヘキサン5mlを加えて振とう器で10~15分間振とうし、析出させる。ポリマーを析出・沈殿させた状態で上澄み液のみをGCに注入する。得られた単量体のピーク面積から、内部標準物質より求めた係数を用いて、定量値を算出する。
<ガラス転移温度>
ガラス転移温度(Tg1)は、JIS K-7121に準拠して、以下の装置及び測定条件により測定した補外ガラス転移開始温度(Tig)である。
装置名:示差走査熱量計 Robot DSC6200(セイコーインスツル株式会社製)
昇温速度:10℃/分
<黄色度>
JIS K-7373に準拠して測定した。具体的な手順は以下のとおり。
試験片1gを25mLのテトラヒドロフランに溶解させる。溶解後、測定用の角セルに移す。温度23℃、湿度50%の条件で、CIE標準のD65光源を使用した透過法により、テトラヒドロフラン溶液の角セルをブランクとして色差を求め、その値を黄色度とした。
装置名:SE7700 分光色彩計(日本電色工業株式会社製)
角セル:A02277A 10×36×55H 角セル 2面透過
以下の方法でマレイミド系共重合体A-2を製造した。
攪拌機を備えた容積約120リットルのオートクレーブ中に、スチレン65質量部、N-フェニルマレイミド7質量部、2、4-ジフェニル-4-メチル-1-ペンテン0.05質量部、メチルエチルケトン25質量部を仕込み、気相部を窒素ガスで置換した後、撹拌しながら40分かけて92℃まで昇温した。昇温後92℃を保持しながら、N-フェニルマレイミド28質量部とt-ブチルパーオキシ-2-エチルヘキサノエート0.3質量部をメチルエチルケトン100質量部に溶解した溶液を8時間かけて連続的に添加した。添加後、さらにt-ブチルパーオキシ-2-エチルヘキサノエート0.04質量部を添加して120℃に昇温し、1時間反応させて重合を終了させた。反応終了後の重合液をベントタイプスクリュー式押出機に投入し、揮発分を除去してペレット状のマレイミド系共重合体A-2を得た。得られたマレイミド系共重合体A-2の分析結果を表1に示す。
以下の方法でマレイミド系共重合体A-3を製造した。
攪拌機を備えた容積約120リットルのオートクレーブ中に、スチレン65質量部、マレイン酸無水物7質量部、2、4-ジフェニル-4-メチル-1-ペンテン0.05質量部、メチルエチルケトン25質量部を仕込み、系内を窒素ガスで置換した後、温度を92℃に昇温し、マレイン酸無水物28質量部とt-ブチルパーオキシ-2-エチルヘキサノエート0.4質量部をメチルエチルケトン100質量部に溶解した溶液を8時間かけて連続的に添加した。添加後、さらにt-ブチルパーオキシ-2-エチルヘキサノエート0.04質量部を添加して120℃に昇温し、1時間反応させて重合を終了させた。その後、重合液にアニリン32質量部、トリエチルアミン0.6質量部を加え140℃で7時間反応させた。反応終了後のイミド化反応液をベントタイプスクリュー式押出機に投入し、揮発分を除去してペレット状のマレイミド系共重合体A-3を得た。得られたマレイミド系共重合体A-3の分析結果を表1に示す。
以下の方法でマレイミド系共重合体A-4を製造した。
攪拌機を備えた容積約120リットルのオートクレーブ中に、スチレン55質量部、マレイン酸無水物25質量部、2、4-ジフェニル-4-メチル-1-ペンテン0.05質量部、メチルエチルケトン75質量部を仕込み、系内を窒素ガスで置換した後、温度を92℃に昇温し、マレイン酸無水物20質量部とt-ブチルパーオキシ-2-エチルヘキサノエート0.2質量部をメチルエチルケトン100質量部に溶解した溶液を8時間かけて連続的に添加した。添加後、さらにt-ブチルパーオキシ-2-エチルヘキサノエート0.04質量部を添加して120℃に昇温し、1時間反応させて重合を終了させた。その後、重合液にアニリン41質量部、トリエチルアミン0.8質量部を加え140℃で7時間反応させた。反応終了後のイミド化反応液をベントタイプスクリュー式押出機に投入し、揮発分を除去してペレット状のマレイミド系共重合体A-4を得た。得られたマレイミド系共重合体A-4の分析結果を表1に示す。
以下の方法でマレイミド系共重合体A-5を製造した。
攪拌機を備えた容積約120リットルのオートクレーブ中に、スチレン75質量部、マレイン酸無水物5質量部、2、4-ジフェニル-4-メチル-1-ペンテン0.15質量部、メチルエチルケトン25質量部を仕込み、系内を窒素ガスで置換した後、温度を92℃に昇温し、マレイン酸無水物20質量部とt-ブチルパーオキシ-2-エチルヘキサノエート0.5質量部をメチルエチルケトン100質量部に溶解した溶液を8時間かけて連続的に添加した。添加後、さらにt-ブチルパーオキシ-2-エチルヘキサノエート0.04質量部を添加して120℃に昇温し、1時間反応させて重合を終了させた。その後、重合液にアニリン23質量部、トリエチルアミン0.4質量部を加え140℃で7時間反応させた。反応終了後のイミド化反応液をベントタイプスクリュー式押出機に投入し、揮発分を除去してペレット状のマレイミド系共重合体A-5を得た。得られたマレイミド系共重合体A-5の分析結果を表1に示す。
以下の方法でマレイミド系共重合体A-6を製造した。
攪拌機を備えた容積約120リットルのオートクレーブ中に、スチレン67質量部、マレイン酸無水物5質量部、アクリロニトリル7質量部、2、4-ジフェニル-4-メチル-1-ペンテン0.05質量部、メチルエチルケトン25質量部を仕込み、系内を窒素ガスで置換した後、温度を92℃に昇温し、マレイン酸無水物21質量部とt-ブチルパーオキシ-2-エチルヘキサノエート0.2質量部をメチルエチルケトン100質量部に溶解した溶液を8時間かけて連続的に添加した。添加後、さらにt-ブチルパーオキシ-2-エチルヘキサノエート0.04質量部を添加して120℃に昇温し、1時間反応させて重合を終了させた。その後、重合液にアニリン24質量部、トリエチルアミン0.4質量部を加え140℃で7時間反応させた。反応終了後のイミド化反応液をベントタイプスクリュー式押出機に投入し、揮発分を除去してペレット状のマレイミド系共重合体A-6を得た。得られたマレイミド系共重合体A-6の分析結果を表1に示す。
以下の方法でマレイミド系共重合体X-1を製造した。
攪拌機を備えた容積約120リットルのオートクレーブ中に、スチレン65質量部、マレイン酸無水物7質量部、2、4-ジフェニル-4-メチル-1-ペンテン0.05質量部、メチルエチルケトン25質量部を仕込み、系内を窒素ガスで置換した後、温度を92℃に昇温し、マレイン酸無水物28質量部とt-ブチルパーオキシ-2-エチルヘキサノエート0.1質量部をメチルエチルケトン100質量部に溶解した溶液を8時間かけて連続的に添加した。添加後、さらにt-ブチルパーオキシ-2-エチルヘキサノエート0.04質量部を添加して120℃に昇温し、1時間反応させて重合を終了させた。その後、重合液にアニリン32質量部、トリエチルアミン0.6質量部を加え140℃で7時間反応させた。反応終了後のイミド化反応液をベントタイプスクリュー式押出機に投入し、揮発分を除去してペレット状のマレイミド系共重合体X-1を得た。得られたマレイミド系共重合体X-1の分析結果を表1に示す。
以下の方法でマレイミド系共重合体X-2を製造した。
攪拌機を備えた容積約120リットルのオートクレーブ中に、スチレン80質量部、マレイン酸無水物4質量部、2、4-ジフェニル-4-メチル-1-ペンテン0.3質量部、メチルエチルケトン25質量部を仕込み、系内を窒素ガスで置換した後、温度を92℃に昇温し、マレイン酸無水物16質量部とt-ブチルパーオキシ-2-エチルヘキサノエート0.5質量部をメチルエチルケトン100質量部に溶解した溶液を8時間かけて連続的に添加した。添加後、さらにt-ブチルパーオキシ-2-エチルヘキサノエート0.04質量部を添加して120℃に昇温し、1時間反応させて重合を終了させた。その後、重合液にアニリン18質量部、トリエチルアミン0.3質量部を加え140℃で7時間反応させた。反応終了後のイミド化反応液をベントタイプスクリュー式押出機に投入し、揮発分を除去してペレット状のマレイミド系共重合体X-2を得た。得られたマレイミド系共重合体X-2の分析結果を表1に示す。
以下の方法でマレイミド系共重合体X-3を製造した。
攪拌機を備えた容積約120リットルのオートクレーブ中に、スチレン65質量部、マレイン酸無水物7質量部、2、4-ジフェニル-4-メチル-1-ペンテン0.05質量部、メチルエチルケトン25質量部を仕込み、系内を窒素ガスで置換した後、温度を92℃に昇温し、マレイン酸無水物28質量部とt-ブチルパーオキシ-2-エチルヘキサノエート0.6質量部をメチルエチルケトン100質量部に溶解した溶液を8時間かけて連続的に添加した。添加後、さらにt-ブチルパーオキシ-2-エチルヘキサノエート0.04質量部を添加して120℃に昇温し、1時間反応させて重合を終了させた。その後、重合液にアニリン32質量部、トリエチルアミン0.6質量部を加え140℃で7時間反応させた。反応終了後のイミド化反応液をベントタイプスクリュー式押出機に投入し、揮発分を除去してペレット状のマレイミド系共重合体X-3を得た。得られたマレイミド系共重合体X-3の分析結果を表1に示す。
以下の方法でマレイミド系共重合体X-4を製造した。
攪拌機を備えた容積約120リットルのオートクレーブ中に、スチレン50質量部、マレイン酸無水物50質量部、2、4-ジフェニル-4-メチル-1-ペンテン0.05質量部、メチルエチルケトン75質量部を仕込み、系内を窒素ガスで置換した後、温度を92℃に昇温し、t-ブチルパーオキシ-2-エチルヘキサノエート0.1質量部をメチルエチルケトン100質量部に溶解した溶液を8時間かけて連続的に添加した。添加後、さらにt-ブチルパーオキシ-2-エチルヘキサノエート0.04質量部を添加して120℃に昇温し、1時間反応させて重合を終了させた。その後、重合液にアニリン46質量部、トリエチルアミン0.9質量部を加え140℃で7時間反応させた。反応終了後のイミド化反応液をベントタイプスクリュー式押出機に投入し、揮発分を除去してペレット状のマレイミド系共重合体X-4を得た。得られたマレイミド系共重合体X-4の分析結果を表1に示す。
以下の方法で、樹脂組成物を得た。
上記で得られたマレイミド系共重合体(A-1)15質量%と、一般に市販されているABS樹脂「GR-3000」(デンカ社製)85質量%とを、二軸押出機TEM-35B(東芝機械株式会社製)を用いて混合及び押出し、ペレット化した樹脂組成物を得た。
<糸曳き性の評価>
糸曳き性はJIS K-7171の曲げ試験に使用される寸法80mm×10mm×4mmの試験片を用い、250℃の熱板に1kg荷重で10秒間押し付けた後、10cm/秒の速度で引き上げた時の糸曳き長さにより以下の5段階で評価した。
AA:糸曳きが1.0cm以下で切れる。
A:1.0cm~4.0cmで切れる。
B:4.0cm~10.0cmで切れる。
C:10cm以上糸曳きする。
<黄色度(YI)の測定>
射出成形機(IS-50EP、東芝機械社製)により、プレート(9cm×5cm)を成形温度240℃で成形し、色差計(COLOR-7e2、倉敷紡績社製)により黄色度YIを測定した。
<揮発分の測定>
マレイミド系共重合体の芳香族ビニル系単量体及びマレイミド系単量体の<残存単量体量>の測定と同じ測定を実施し、合計量を揮発分とした。
<シャルピー衝撃強度の測定>
JIS K-7111に準拠して、ノッチあり試験片を用い、打撃方向はエッジワイズを採用して相対湿度50%、雰囲気温度23℃で測定した。なお、測定機は東洋精機製作所社製デジタル衝撃試験機を使用した。
<メルトマスフローレートの測定>
JIS K7210に準拠して、220℃、98N荷重にて測定した。
<ビカット軟化点の測定>
JIS K7206に準拠して、50法(荷重50N、昇温速度50℃/時間)で、10mm×10mm×4mmの試験片を用いて測定した。なお、測定機は東洋精機製作所社製HDT&VSPT試験装置を使用した。
マレイミド系共重合体A-1に代えて、マレイミド系共重合体A-2、A-3、A-4、A-5又はA-6を用いたこと以外は、実施例2-1と同様にして、樹脂組成物を得た。得られた樹脂組成物について、実施例2-1と同様の方法で評価した。結果を表2に示す。
マレイミド系共重合体A-1に代えて、マレイミド系共重合体X-1、X-2、X-3又はX-4を用いたこと以外は、実施例2-1と同様にして、樹脂組成物を得た。得られた樹脂組成物について、実施例2-1と同様の方法で評価した。結果を表2に示す。
Claims (9)
- 40~65質量%の芳香族ビニル系単量体単位、及び、35~60質量%のマレイミド系単量体単位を有し、
芳香族ビニル系単量体の残存量が200~2000質量ppmであり、マレイミド系単量体の残存量が30~400質量ppmである、マレイミド系共重合体。 - 不飽和ジカルボン酸系単量体単位を更に有し、
前記不飽和ジカルボン酸系単量体単位の含有量が10質量%以下である、請求項1に記載のマレイミド系共重合体。 - シアン化ビニル系単量体単位を更に有し、
前記シアン化ビニル系単量体単位の含有量が5~20質量%である、請求項1又は2に記載のマレイミド系共重合体。 - 請求項1~3のいずれか一項に記載のマレイミド系共重合体からなる、熱板溶着時の樹脂組成物の糸曳きを抑制する、糸曳き抑制剤。
- 請求項1~3のいずれか一項に記載のマレイミド系共重合体と、
熱可塑性樹脂と、
を含有する、樹脂組成物。 - 前記マレイミド系共重合体の含有量が5~40質量%であり、
前記熱可塑性樹脂の含有量が60~95質量%である、請求項5に記載の樹脂組成物。 - 熱板溶着用である、請求項5又は6に記載の樹脂組成物。
- 第一の樹脂面と第二の樹脂面とを熱板溶着により接合する工程を備え、
前記第一の樹脂面及び前記第二の樹脂面の少なくとも一方が、請求項5~7のいずれか一項に記載の樹脂組成物を含む、成形品の製造方法。 - 第一の樹脂面と第二の樹脂面とを溶着させた溶着部を有し、
前記第一の樹脂面及び前記第二の樹脂面の少なくとも一方が、請求項5~7のいずれか一項に記載の樹脂組成物を含む、成形品。
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| KR101639832B1 (ko) * | 2009-01-16 | 2016-07-14 | 덴카 주식회사 | 말레이미드계 공중합체, 그의 제조 방법 및 그것을 이용한 내열성 수지 조성물 |
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2021
- 2021-06-08 WO PCT/JP2021/021771 patent/WO2022044480A1/ja not_active Ceased
- 2021-06-08 US US18/040,297 patent/US12351661B2/en active Active
- 2021-06-08 EP EP21860911.3A patent/EP4174096B1/en active Active
- 2021-06-08 JP JP2022505313A patent/JP7129583B2/ja active Active
- 2021-06-08 CN CN202180035361.8A patent/CN115605520B/zh active Active
- 2021-06-08 KR KR1020227043064A patent/KR20230058591A/ko active Pending
- 2021-06-15 TW TW110121589A patent/TWI873354B/zh active
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| JPH11158215A (ja) * | 1992-06-17 | 1999-06-15 | Nippon Shokubai Co Ltd | マレイミド系共重合体の製造方法 |
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| WO2018139087A1 (ja) * | 2017-01-25 | 2018-08-02 | ユーエムジー・エービーエス株式会社 | 熱板溶着用熱可塑性樹脂組成物及びその成形品、樹脂接合体 |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2022044480A1 (ja) | 2022-03-03 |
| TWI873354B (zh) | 2025-02-21 |
| EP4174096A1 (en) | 2023-05-03 |
| TW202210533A (zh) | 2022-03-16 |
| US20240279372A1 (en) | 2024-08-22 |
| CN115605520A (zh) | 2023-01-13 |
| CN115605520B (zh) | 2025-05-02 |
| US12351661B2 (en) | 2025-07-08 |
| JP7129583B2 (ja) | 2022-09-01 |
| KR20230058591A (ko) | 2023-05-03 |
| EP4174096A4 (en) | 2024-01-03 |
| EP4174096B1 (en) | 2025-08-13 |
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