WO2014024949A1 - Composition de résine, et procédé de fabrication ainsi que corps moulé de celle-ci - Google Patents

Composition de résine, et procédé de fabrication ainsi que corps moulé de celle-ci Download PDF

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Publication number
WO2014024949A1
WO2014024949A1 PCT/JP2013/071444 JP2013071444W WO2014024949A1 WO 2014024949 A1 WO2014024949 A1 WO 2014024949A1 JP 2013071444 W JP2013071444 W JP 2013071444W WO 2014024949 A1 WO2014024949 A1 WO 2014024949A1
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resin
resin composition
weight
polycarbonate
group
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PCT/JP2013/071444
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English (en)
Japanese (ja)
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一喜 大松
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住友化学株式会社
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Priority to KR1020157005194A priority Critical patent/KR101980418B1/ko
Priority to CN201380041443.9A priority patent/CN104520377B/zh
Publication of WO2014024949A1 publication Critical patent/WO2014024949A1/fr

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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
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/10—Homopolymers or copolymers of methacrylic acid esters
    • C08L33/12—Homopolymers or copolymers of methyl methacrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/10—Transparent films; Clear coatings; Transparent materials

Definitions

  • the present invention relates to a resin composition having excellent transparency and a method for producing the same. Furthermore, it is related with the molded object obtained by shape
  • Polycarbonate resins generally have excellent high temperature stability, dimensional stability, impact resistance, rigidity, transparency, and the like. However, scratch resistance and long-term UV resistance are insufficient, and there is a disadvantage that stress birefringence occurs.
  • acrylic resins such as polymethylmethacrylate are known to have excellent transparency, surface hardness, UV resistance, weather resistance, chemical resistance, and the like. However, acrylic resins are insufficient in dimensional stability, impact resistance, low temperature resistance and the like.
  • a mixture of a polycarbonate resin and an acrylic resin compensates for the disadvantages of each resin and has properties that can be used for various applications.
  • a mixture of a polycarbonate resin and an acrylic resin is opaque and has a problem that it cannot be used for applications requiring transparency. Therefore, various methods have been proposed in order to obtain a transparent mixture of a polycarbonate resin and an acrylic resin.
  • Patent Document 1 discloses a method of mixing an aromatic polycarbonate and syndiotactic polymethyl methacrylate in which at least 50% of all methyl methacrylate units are in a syndiotactic configuration.
  • Patent Document 2 discloses a melt-kneading method in which a resin composed of 97 to 60% by weight of polycarbonate and 3 to 40% by weight of polymethyl methacrylate is melt-kneaded using a trace type high-shear molding machine.
  • the melt-kneaded product obtained by this method is not always sufficient in terms of transparency.
  • Patent Document 3 discloses a copolymer mixture comprising an aromatic polycarbonate and a methacrylate copolymer obtained by copolymerizing methyl methacrylate and cyclohexyl methacrylate.
  • this copolymer mixture is not always sufficient in terms of transparency.
  • An object of the present invention is to provide a resin composition having excellent transparency.
  • the present invention relates to the following (1) to (6).
  • a resin composition containing 50 to 95% by weight of an acrylic resin and 5 to 50% by weight of a polycarbonate resin, wherein the acrylic resin contains 50 to 95% by weight of methyl methacrylate, Formula (I) (In formula (I), R 1 represents a hydrogen atom or a methyl group, and R 2 represents an alkyl group, a cycloalkyl group, or an alkylcycloalkyl group substituted with a cycloalkyl group.) Viscosity average of 80000 to 300000 including a copolymer obtained by polymerizing a monomer component consisting of 5 to 50% by weight of acid ester and 0.1 to 20% by weight of other monofunctional monomer A resin having a molecular weight, wherein the polycarbonate resin has a viscosity average molecular weight of 16000 to 25000, a melt viscosity ( ⁇ A ) of the acrylic resin at a temperature of 240 ° C.
  • MVR PC represents a melt volume rate of the polycarbonate-based resin at 300 ° C.
  • W a is the weight percent of (meth) acrylic acid ester represented by the formula (I) in the monomer components represents, W b satisfies the representative.) the weight percent of the polycarbonate resin in the resin composition, the resin composition.
  • the (meth) acrylic acid ester represented by the formula (I) is at least one selected from the group consisting of cyclohexyl methacrylate, cyclohexyl acrylate, dicyclopentanyl methacrylate, and dicyclopentanyl acrylate.
  • the resin composition according to (1) which is an ester.
  • the resin composition according to (1), wherein the monofunctional monomer is at least one monomer selected from the group consisting of methyl acrylate, ethyl acrylate, and butyl acrylate.
  • a resin composition having excellent transparency can be obtained, and a molded article having excellent transparency can be obtained by molding this resin composition. Furthermore, the resin composition of the present invention and the molded article of the present invention also have excellent mechanical strength. Therefore, the resin composition of the present invention and the molded article of the present invention are suitably used for electro-optical materials, cover materials, resin glazing materials and the like.
  • the resin composition of the present invention contains a specific acrylic resin and a specific polycarbonate resin.
  • the acrylic resin used in the present invention comprises 50 to 95% by weight of methyl methacrylate and the following formula (I)
  • R 1 represents a hydrogen atom or a methyl group
  • R 2 represents an alkyl group, a cycloalkyl group, or an alkylcycloalkyl group substituted with a cycloalkyl group.
  • (meth) acryl means “acryl” or “methacryl”.
  • R 2 in formula (I) represents an alkyl group, a cycloalkyl group, an alkylcycloalkyl group or a dicyclopentanyl group substituted with a cycloalkyl group.
  • a cycloalkyl group or a dicyclopentanyl group is preferable.
  • the cycloalkyl group a cycloalkyl group having 5 to 12 carbon atoms is preferable.
  • Examples of the cycloalkyl group having 5 to 12 carbon atoms include a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, and a cyclododecyl group.
  • a cyclohexyl group is preferable.
  • the alkyl group an alkyl group having 1 to 4 carbon atoms is preferable.
  • Examples of the alkyl group having 1 to 4 carbon atoms include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, and tert-butyl group.
  • alkyl group substituted with a cycloalkyl group examples include a methyl group, an ethyl group, an n-propyl group, and an isopropyl group in which at least one H (hydrogen atom) is substituted with the above cycloalkyl group having 5 to 12 carbon atoms. , N-butyl group, isobutyl group, tert-butyl group and the like.
  • alkylcycloalkyl group examples include a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, and a cyclododecyl group in which at least one H is substituted with the above alkyl group having 1 to 4 carbon atoms.
  • the (meth) acrylic acid ester represented by the formula (I) is at least one ester selected from the group consisting of cyclohexyl methacrylate, cyclohexyl acrylate, dicyclopentanyl methacrylate and dicyclopentanyl acrylate. Of these, cyclohexyl methacrylate is more preferable.
  • Examples of monofunctional monomers other than methyl methacrylate and (meth) acrylic acid ester represented by formula (I) include (meth) acrylic acid esters other than methyl methacrylate and (meth) acrylic acid ester represented by formula (I). ) Alkyl acrylate, alkenyl cyanide compounds (for example, acrylonitrile, methacrylonitrile, etc.), acrylic acid, methacrylic acid, maleic anhydride and the like. Among these, alkyl methacrylate or alkyl acrylate is preferable.
  • alkyl methacrylate examples include ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, t-butyl methacrylate, sec-butyl methacrylate, isobutyl methacrylate, 2-ethylhexyl methacrylate, and the like. Is mentioned. Among these, alkyl methacrylate having an alkyl group having 2 to 4 carbon atoms is preferable.
  • alkyl acrylate examples include, for example, methyl acrylate, ethyl acrylate, n-propyl acrylate, isopropyl acrylate, butyl acrylate (n-butyl acrylate, t-butyl acrylate, sec-butyl acrylate, acrylic acid Isobutyl) and 2-ethylhexyl acrylate.
  • an alkyl acrylate having an alkyl group having 1 to 4 carbon atoms is preferable, and methyl acrylate is more preferable.
  • a monofunctional monomer may be used independently and may use 2 or more types together.
  • methyl methacrylate is contained in the monomer component constituting the acrylic resin in a proportion of 50 to 95% by weight, preferably 60 to 90% by weight. Contained in proportions.
  • the (meth) acrylic acid ester represented by the formula (I) is contained in the monomer component constituting the acrylic resin in a proportion of 5 to 50% by weight, preferably in a proportion of 10 to 40% by weight. Is done. When the content of the (meth) acrylic acid ester represented by the formula (I) is less than 5% by weight, the compatibility of the obtained acrylic resin with the polycarbonate resin is lowered, and the transparency of the resin composition is lowered.
  • the weather resistance of the resin composition also decreases in addition to the decrease in compatibility (transparency).
  • transparency and a weather resistance fall also in the molded object obtained by shape
  • the monofunctional monomer is contained in the monomer component constituting the acrylic resin in a proportion of 0.1 to 20% by weight, preferably 0.2 to 10% by weight, more preferably 0.3 to It is contained at a ratio of 5% by weight.
  • the content of the monofunctional monomer is less than 0.1% by weight, the acrylic resin is likely to be thermally decomposed.
  • transparency and heat resistance are lowered.
  • the polymerization method of the monomer component is not particularly limited, and for example, a known polymerization method such as an emulsion polymerization method, a suspension polymerization method, a bulk polymerization method, or a liquid injection polymerization method (cast polymerization method) is performed.
  • a known polymerization method such as an emulsion polymerization method, a suspension polymerization method, a bulk polymerization method, or a liquid injection polymerization method (cast polymerization method) is performed.
  • Polymerization is performed using light irradiation or a polymerization initiator, and an azo initiator (for example, 2,2′-azobisisobutyronitrile, 2,2′-azobis (2,4-dimethylvaleronitrile), etc.) ), Peroxide initiators (lauroyl peroxide, 1,1-di (t-butylperoxy) cyclohexane, benzoyl peroxide, etc.), redox initiators combining organic peroxides and amines, etc. It is preferable to use a polymerization initiator.
  • an azo initiator for example, 2,2′-azobisisobutyronitrile, 2,2′-azobis (2,4-dimethylvaleronitrile), etc.
  • Peroxide initiators laauroyl peroxide, 1,1-di (t-butylperoxy) cyclohexane, benzoyl peroxide, etc.
  • redox initiators combining organic peroxide
  • the amount of the polymerization initiator used is appropriately determined according to the type of monomer, the ratio of the monomer, etc., but is usually 0.01 to 1 part by weight, preferably 100 parts by weight of the monomer component. Is used in a proportion of 0.01 to 0.5 parts by weight.
  • a polymerization initiator may be used independently and may use 2 or more types together.
  • chain transfer agents such as mercaptans such as methyl mercaptan, n-butyl mercaptan, t-butyl mercaptan, n-octyl mercaptan, n-dodecyl mercaptan, 2-ethylhexyl thioglycolate
  • crosslinking An agent or the like may be added. The amount of these used is appropriately determined according to the type of monomer, the proportion of monomer, and the like.
  • the chain transfer agent and the crosslinking agent may be used alone or in combination of two or more.
  • the polymerization temperature and polymerization time of the monomer component are not particularly limited, and are appropriately determined according to the type of monomer, the ratio of the monomer, and the like.
  • the acrylic resin used in the present invention contains a copolymer obtained by polymerizing the above monomer components, and has a viscosity average molecular weight of 80,000 to 300,000.
  • the acrylic resin has a viscosity average molecular weight of less than 80000, impact resistance and heat resistance are lowered.
  • the viscosity average molecular weight of the acrylic resin exceeds 300,000, it becomes difficult to melt and knead, and molding processing becomes difficult.
  • the acrylic resin preferably has a viscosity average molecular weight of 90000-250,000.
  • the viscosity average molecular weight (Mv) of the acrylic resin is obtained using the following formula (1).
  • [ ⁇ ] represents the intrinsic viscosity, and is obtained from the viscosity number V N measured according to ISO 1628-6, using the following formula (2).
  • V N [ ⁇ ] + 0.4 ⁇ [ ⁇ ] 2 (2)
  • the fluidity of the acrylic resin is evaluated by a melt mass flow rate (MFR) at 230 ° C. measured at a load of 3.8 kg.
  • MFR melt mass flow rate
  • the fluidity (MFR) of the acrylic resin is not particularly limited, but is preferably 0.1 to 50 g / 10 minutes, more preferably 0.2 to 30 g / 10 minutes.
  • MFR melt mass flow rate
  • the acrylic resin has an MFR in such a range, the fluidity is excellent and the processability is improved, and the resin composition is easily melt-kneaded. Moreover, the transparency and mechanical strength of the resulting resin composition and molded article are also improved.
  • the polycarbonate resin used in the present invention is not particularly limited as long as it has a viscosity average molecular weight of 16000 to 25000.
  • Polycarbonate resins are, for example, resins obtained by reacting a dihydric phenol and a carbonylating agent by an interfacial polycondensation method or a melt transesterification method; by polymerizing a carbonate prepolymer by a solid phase transesterification method or the like.
  • the resin to be obtained include a resin obtained by polymerizing a cyclic carbonate compound by a ring-opening polymerization method.
  • the polycarbonate resin preferably has a viscosity average molecular weight of 16000 to 24,000.
  • the fluidity of the polycarbonate resin used in the present invention is evaluated by the melt volume rate (MVR) at 300 ° C. measured with a 1.2 kg load.
  • the flowability (MVR) of the polycarbonate resin is not particularly limited, but is preferably 8 to 50 g / 10 minutes, more preferably 10 to 45 g / 10 minutes.
  • MVR melt volume rate
  • dihydric phenol examples include hydroquinone, resorcinol, 4,4′-dihydroxydiphenyl, bis (4-hydroxyphenyl) methane, bis ⁇ (4-hydroxy-3,5-dimethyl) phenyl ⁇ methane, 1,1- Bis (4-hydroxyphenyl) ethane, 1,1-bis (4-hydroxyphenyl) -1-phenylethane, 2,2-bis (4-hydroxyphenyl) propane (commonly called bisphenol A), 2,2-bis ⁇ (4-hydroxy-3-methyl) phenyl ⁇ propane, 2,2-bis ⁇ (4-hydroxy-3,5-dimethyl) phenyl ⁇ propane, 2,2-bis ⁇ (4-hydroxy-3,5-dibromo) ) Phenyl ⁇ propane, 2,2-bis ⁇ (3-isopropyl-4-hydroxy) phenyl ⁇ propane, 2,2-bis ⁇ ( -Hydroxy-3-phenyl) phenyl ⁇ propane, 2,2-bis (4-hydroxyphenyl)
  • bisphenol A 2,2-bis ⁇ (4-hydroxy-3-methyl) phenyl ⁇ propane, 2,2-bis (4-hydroxyphenyl) butane, 2,2-bis (4 -Hydroxyphenyl) -3-methylbutane, 2,2-bis (4-hydroxyphenyl) -3,3-dimethylbutane, 2,2-bis (4-hydroxyphenyl) -4-methylpentane, 1,1-bis (4-Hydroxyphenyl) -3,3,5-trimethylcyclohexane and ⁇ , ⁇ ′-bis (4-hydroxyphenyl) -m-diisopropylbenzene are preferred.
  • carbonylating agent examples include carbonyl halide (such as phosgene), carbonate ester (such as diphenyl carbonate), and haloformate (such as dihaloformate of dihydric phenol). These may be used alone or in combination of two or more.
  • the resin composition of the present invention contains 50 to 95% by weight of acrylic resin and 5 to 50% by weight of polycarbonate resin.
  • the acrylic resin is preferably contained in a proportion of 50 to 80% by weight, and the polycarbonate resin is preferably contained in a proportion of 20 to 50% by weight.
  • the resin composition of the present invention includes a compatibilizer, a stabilizer, an antioxidant, and a light stabilizer within a range that does not impair the object of the present invention.
  • Conventional additives such as additives, colorants, foaming agents, lubricants, mold release agents, antistatic agents, flame retardants, flame retardant aids, UV absorbers, dyes, pigments, polymerization inhibitors, reinforcing agents, etc.
  • a thermoplastic resin or the like may be blended. These additives may be added at the time of melt kneading of the resin mixture containing the acrylic resin and the polycarbonate resin, or may be added before or after the melt kneading. When the additive is added, the content thereof is preferably about 0.005 to 30% by weight with respect to the resin composition.
  • the ratio of the melt viscosity of the acrylic resin and (eta A) and the melt viscosity of the polycarbonate ( ⁇ B) is from 0.40 to 3.00.
  • the melt viscosity is a melt viscosity at a temperature of 240 ° C. and a shear rate of 60 sec ⁇ 1 . If this ratio ( ⁇ A / ⁇ B ) is less than 0.40 or exceeds 3.00, the viscosity of the resins will be too far apart, making it difficult to mix uniformly during melt-kneading, and the resulting resin composition The transparency of the is reduced.
  • This ratio ( ⁇ A / ⁇ B ) is preferably 0.42 to 2.90.
  • the resin composition of the present invention satisfies the following formula (a). 2 ⁇ (MVR PC ⁇ W a ⁇ W a ) / (W b ⁇ W b ) ⁇ 50 (a)
  • MVR PC represents a melt volume rate of the polycarbonate-based resin at 300 ° C.
  • W a is the weight percent of (meth) acrylic acid ester represented by the formula (I) in the monomer components It represents, W b represents the weight percent of the polycarbonate resin in the resin composition.
  • a resin composition having excellent transparency can be obtained.
  • the affinity between the acrylic resin and the polycarbonate resin is lowered, and a transparent resin composition cannot be obtained.
  • the resin composition of the present invention preferably satisfies the following formula (a) ′. 2.4 ⁇ (MVR PC ⁇ W a ⁇ W a ) / (W b ⁇ W b ) ⁇ 40 (a) ′
  • the resin composition of the present invention is obtained by melt-kneading a resin mixture containing the above-mentioned specific acrylic resin and the above-mentioned specific polycarbonate resin.
  • melt kneading is usually performed at a temperature of 180 to 320 ° C., preferably 200 to 300 ° C., and usually a shear rate of 10 to 500 sec ⁇ 1 , preferably 20 to 300 sec ⁇ 1. More preferably, it is carried out at a shear rate of 30 to 200 sec ⁇ 1 .
  • an ordinary mixer, kneader, or the like can be used as an apparatus used for melt kneading.
  • Specific examples include a single screw kneading extruder, a twin screw kneading extruder, a ribbon blender, a Henschel mixer, a Banbury mixer, and a drum tumbler.
  • a twin-screw kneading extruder is preferable.
  • the melt-kneading can be performed in an atmosphere of an inert gas such as nitrogen gas, argon gas, or helium gas as necessary.
  • the resin composition of the present invention is processed into a desired shape and processed into a molded article having excellent transparency (optical characteristics) and mechanical strength.
  • a molded body is useful as, for example, an electro-optical material, a cover material, a resin glazing material, and the like.
  • the obtained resin composition may be molded as it is in the apparatus used for the melt kneading described above. Further, after the obtained resin composition is made into a pellet or the like, it may be melt-molded in a molding machine using a molding machine such as an injection molding machine or a hydraulic press.
  • the molding temperature is usually about 150 to 350 ° C, preferably about 180 to 320 ° C, more preferably about 180 to 300 ° C.
  • MFR Mass Flow Rate
  • a reaction vessel was charged with 100 parts by weight of this monomer mixture, 285 parts by weight of ion-exchanged water, and 0.18 parts by weight of a 1.2% by weight sodium polyacrylate aqueous solution as a suspension stabilizer, and at 80 ° C. for 3 hours. Suspension polymerization was performed. The obtained slurry-like reaction liquid was dehydrated and washed with a dehydrator, and then dried to obtain a bead-like acrylic resin. This bead-shaped acrylic resin was charged into a biaxial kneader (manufactured by Nippon Steel Works, Ltd., TEX-30), and melt-kneaded at 250 ° C. and 200 rpm.
  • a biaxial kneader manufactured by Nippon Steel Works, Ltd., TEX-30
  • Table 2 shows the viscosity average molecular weight (Mv) and MVR of the polycarbonate (PC) used. These are all polycarbonates manufactured by Sumika Stylon Polycarbonate Co., Ltd. Hereinafter, as also described in Table 2, the caliber 301-40 may be abbreviated as PC-40.
  • Example 1 Preparation of resin composition
  • 70 wt% of the acrylic resin obtained in Synthesis Example 1 and 30 wt% of PC-40 were mixed with a twin-screw kneading extruder (manufactured by Nippon Steel Works, TEX-30SS, The ratio (L / D) of the screw length (L) to the screw diameter (D) was 41), and the mixture was melt-kneaded at a cylinder temperature of 250 ° C. and a rotation speed of 100 rpm (shear rate of 81 sec ⁇ 1 ).
  • Table 3 shows the melt viscosity ratio ( ⁇ A / ⁇ B ) between the acrylic resin and the polycarbonate resin.
  • the melt was extruded into a strand shape, cooled, and then cut with a strand cutter to obtain a pellet-shaped resin composition.
  • Table 3 shows the result of visual observation of the appearance of the obtained resin composition.
  • the obtained resin composition was injection molded into a mold having a cylinder temperature of 250 ° C. and a setting of 60 ° C. using an injection molding machine (“IS130FII” manufactured by Toshiba Machine Co., Ltd.).
  • a plate-like molded body of 50 mm ⁇ 3.4 mm was obtained.
  • the obtained plate-shaped molded product was calculated the value of "(MVR PC ⁇ W a ⁇ W a) / (W b ⁇ W b) ".
  • the results are shown in Table 3.
  • Examples 2 to 8 and Comparative Examples 1 to 7 Preparation of resin composition
  • Resin compositions were obtained in the same manner as in Example 1 except that the components shown in Table 3 were used in the proportions shown in Table 3.
  • Table 3 shows the result of visual observation of the appearance of the obtained resin composition.
  • the obtained resin composition was molded into a plate-like molded body in the same procedure as in Example 1, and the value of “(MVR PC ⁇ W a ⁇ W a ) / (W b ⁇ W b )” was set. Calculated. The results are shown in Table 3.
  • Total light transmittance (Tt) Total light transmittance (Tt)
  • HR-100 transmittance meter
  • JIS K7361-1 JIS K7361-1
  • VST Vicat softening temperature
  • molded articles obtained by molding the resin compositions of the present invention were made of acrylic resins having excellent transparency (Synthesis Examples 1, 3 and 5). It can be seen that the molded article obtained by molding (Reference Examples 1 to 3) has transparency comparable to that of the molded article. Moreover, it turns out that the molded object of this invention has the outstanding heat resistance and impact resistance. On the other hand, the molded products obtained by molding the resin compositions of Comparative Examples 1 to 3 and 5 are not particularly inferior in heat resistance and impact resistance, but it is found that Tt is remarkably low and not transparent.

Abstract

La composition de résine de l'invention comprend 50 à 95% en masse d'une résine acrylique, et 5 à 50% en masse d'une résine de polycarbonate. Ladite résine acrylique contient un copolymère obtenu par polymérisation d'un composant monomère constitué de 50 à 95% en masse d'un méthacrylate de méthyle, de 5 à 50% en masse d'un ester d'acide (méth)acrylique représenté par la formule (I), et de 0,1 à 20% en masse d'un monomère monofonctionnel autre que ces derniers. Ladite résine acrylique possède une masse moléculaire moyenne en viscosité de 80000 à 300000. Ladite résine de polycarbonate possède une masse moléculaire moyenne en viscosité de 16000 à 25000. Le rapport (ηA/ηB) entre la viscosité à l'état fondu (ηA) de la résine acrylique à une température de 240°C et à une vitesse de cisaillement de 60sec-1, et la viscosité à l'état fondu (ηB) de la résine de polycarbonate à une température de 240°C et à une vitesse de cisaillement de 60sec-1, est comprise entre 0,40 et 3,00. Enfin, la formule (a) est satisfaite.
PCT/JP2013/071444 2012-08-06 2013-08-01 Composition de résine, et procédé de fabrication ainsi que corps moulé de celle-ci WO2014024949A1 (fr)

Priority Applications (2)

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KR1020157005194A KR101980418B1 (ko) 2012-08-06 2013-08-01 수지 조성물, 수지 조성물의 제조 방법 및 성형체
CN201380041443.9A CN104520377B (zh) 2012-08-06 2013-08-01 树脂组合物、树脂组合物的制造方法及成形体

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JP2012173634A JP5959102B2 (ja) 2012-08-06 2012-08-06 樹脂組成物、樹脂組成物の製造方法および成形体
JP2012-173634 2012-08-06

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Publication number Priority date Publication date Assignee Title
WO2015186629A1 (fr) * 2014-06-03 2015-12-10 株式会社クラレ Composition de résine méthacrylique
WO2016114250A1 (fr) * 2015-01-14 2016-07-21 住友化学株式会社 Composition de résine
WO2016121924A1 (fr) * 2015-01-30 2016-08-04 株式会社クラレ Composition de résine méthacrylique et stratifié l'utilisant
EP3103837A4 (fr) * 2014-02-06 2017-09-20 Sumitomo Chemical Company, Limited Composition de résine et article moulé à partir de celle-ci
EP3954729A4 (fr) * 2019-04-08 2022-06-01 Mitsubishi Gas Chemical Company, Inc. Film, stratifié, corps thermoformé, moulage en moule, procédé de production d'un moulage et procédé de production d'un moulage en moule

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Publication number Priority date Publication date Assignee Title
JP2015182414A (ja) * 2014-03-26 2015-10-22 住友化学株式会社 加飾用フィルム
WO2015159552A1 (fr) * 2014-04-18 2015-10-22 株式会社クラレ Composition de résine méthacrylique, corps moulé, film et plaque polarisante

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