WO2011050521A1 - Composition de polymère présentant des propriétés améliorées et son procédé de préparation - Google Patents

Composition de polymère présentant des propriétés améliorées et son procédé de préparation Download PDF

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Publication number
WO2011050521A1
WO2011050521A1 PCT/CN2009/074654 CN2009074654W WO2011050521A1 WO 2011050521 A1 WO2011050521 A1 WO 2011050521A1 CN 2009074654 W CN2009074654 W CN 2009074654W WO 2011050521 A1 WO2011050521 A1 WO 2011050521A1
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WO
WIPO (PCT)
Prior art keywords
polymer
polymer composition
methyl methacrylate
weight
meth
Prior art date
Application number
PCT/CN2009/074654
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English (en)
Inventor
Werner Hoess
Yujun Zhang
Victor Khrenov
Cheng Xu
Guomin Liu
Feng Zhao
Siewfong Low
Original Assignee
Evonik Roehm Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Evonik Roehm Gmbh filed Critical Evonik Roehm Gmbh
Priority to PCT/CN2009/074654 priority Critical patent/WO2011050521A1/fr
Priority to TW099136324A priority patent/TW201130907A/zh
Publication of WO2011050521A1 publication Critical patent/WO2011050521A1/fr

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Classifications

    • 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
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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
    • 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
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/08—Copolymers of styrene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L35/00—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 a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L35/06—Copolymers with vinyl aromatic monomers

Definitions

  • the present invention relates to acrylic based blend polymers with improved optical and surface properties.
  • PMMA Poly(methyl methacrylate)
  • Impact resistant polymer products as a combination of PMMA, SAN (the copolymer of styrene and acrylonitrile) and MBS (methyl methacrylate-butadiene-styrene copolymer) are known.
  • SAN the copolymer of styrene and acrylonitrile
  • MBS methyl methacrylate-butadiene-styrene copolymer
  • Terlux® from BASF.
  • German patent DE2024940 discloses a composition containing :
  • W098/28365 discloses a polymer composition consisting of:
  • US2002/0167112 discloses an acrylic based multipolymer molding and extrusion composition possessing improved optical properties and low temperature impact resistance, comprising:
  • MFS methyl methacrylate-butadiene-styrene
  • Nontoxic transparent products combining inherent high gloss surface with high scratch resistance and high impact resistance are always required, especially for food packaging and toy industries.
  • the aim of the present invention is to provide a polymer composition with high transparency, high surface hardness, high gloss and good impact resistance and free of acrylonitrile.
  • This aim is achieved by providing a polymer composition comprising the following components: based on the total weight of the polymer composition,
  • a polymer B which is a methyl methacrylate based polymer
  • a copolymer C comprising 18-35 wt% maleic anhydride and 65-82 wt% styrene
  • methyl methacrylate based polymer in polyblend A and the methyl methacrylate based polymer as polymer B can be identical or different and independently each other is a polymer comprising 50-100 wt%, preferably 65-100wt% methyl methacrylate and 0-50 wt%, preferably 0-35wt% coacrylates, in polymerization form, based on the weight of the methyl methacrylate based polymer.
  • the invention also provides a process to prepare the present invention polymer composition, where polymers with different ratio of the components are melted and compounded, preferably with single or twin screw extruders, at 150-300 °C, preferably at 190-250 °C.
  • the desired polymer composition in present invention has a haze of at most 10%, preferably at most 8% and most preferably at most 5% determined according to ASTM D1003, a pencil hardness of HB, preferably 1 H and most preferably 2H determined according to ASTM D3363, and an impact resistance of >20KJ/m 2 , preferably >40KJ/m 2 and most preferably >60KJ/m 2 at 23°C according to ISO 179.
  • the preferred polymer composition comprises the following components: based on the total weight of the polymer composition,
  • a polymer B which is a methyl methacrylate based polymer
  • a copolymer C comprising 18-35 wt% maleic anhydride and 65-82 wt% styrene.
  • the 'methyl methacrylate based polymer' in polyblend A could be the same as or different from polymer B, which independently each other is a polymer comprising 50-100 wt%, preferably 65-100 wt% methyl methacrylate and 0-50 wt%, preferably 0-35 wt% coacrylates, in polymerization form, based on the weight of the methyl methacrylate based polymer.
  • the coacrylates which could be used in methyl methacrylate based polymer are widely known. They include, among others, (meth)acrylates which derive from saturated alcohols, such as methyl acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, n-butyl (meth)acrylate, tert-butyl (meth)acrylate, pentyl (meth)acrylate and 2-ethylhexyl (meth)acrylate, for example; (meth)acrylates which derive from unsaturated alcohols, such as oleyl (meth)acrylate, 2-propynyl (meth)acrylate, allyl (meth)acrylate, vinyl (meth)acrylate, for example; aryl (meth)acrylates, such as benzyl (meth)acrylate or phenyl (meth)acrylate, it being possible for the aryl radicals in each case to be unsubstituted or to be substituted up
  • methyl acrylate and ethyl (meth) acrylate are preferred.
  • further unsaturated comonomers uased as coacrylates contained in the methyl methacrylate based polymer are those copolymerizable with methyl methacrylate and with the aforementioned (meth)acrylates.
  • Such monomers include, among others, 1-alkenes, such as hex-1-ene, hept-1-ene; branched alkenes, such as vinylcyclohexane, 3,3-dimethyl-1-propene, 3-methyl-1-diisobutylene, 4-methylpent-1-ene, for example; vinyl esters, such as vinyl acetate; styrene, substituted styrenes having an alkyl substituent in the side chain, such as [alpha]-methylstyrene and [alpha]-ethylstyrene, for example, substituted styrenes with an alkyl substituent on the ring, such as vinyltoluene and p-methylstyrene, halogenated styrenes, such as monochlorostyrenes, dichlorostyrenes, tribromostyrenes and tetrabromo-styrenes, for example; heterocyclic vinyl compounds, such
  • these comonomers are used in an amount of 0 wt% to 50 wt%, preferably 0 wt% to 30 wt% based on the weight of the methyl methacrylate based polymer, it being possible for the compounds to be used individually or as a mixture.
  • Said polyblend A comprises polybutadiene in an amount of 1-20 wt%, preferably 10-20 wt%, and a methyl methacrylate based polymer in an amount of 80-99 wt%, preferably 80-90 wt%, based on the weight of polyblend A.
  • Said methyl methacrylate based polymer comprises 50-100 wt%, preferably 65-100 wt% methyl methacrylate and 0-50 wt%, preferably 0-35 wt% coacrylates, in polymerization form, based on the weight of the methyl methacrylate based polymer.
  • the methyl methacrylate based polymer comprises 65-95wt% MMA, 5-25wt% styrene, 0-10wt% ethyl acrylate, based on the weight of the methyl methacrylate based polymer.
  • Said polyblend A or the blend of polybutadiene and a methyl methacrylate based polymer (B-PMMA for short), could be selected from Acrylite XT® polymer, CYROVU ® or CYROLITE ® from EVONIK, KANE ACE ® from Kaneka, and BTE 731 ® from Rohm&Haas.
  • said polymer B is used in amount of 10-40 wt%, more preferably 20-30 wt% based on the total weight of the polymer composition.
  • the polymer B preferably has a weight-average molecular weight of from 40,000g/mol to 400 OOOg/mol; more preferably 80,000g/mol to 200, OOOg/mol and most preferably 120, OOOg/mol to 160, OOOg/mol.
  • Said polymer B could be selected from standard PLEXGLAS® molding compounds series from EVONIK, e.g. PLEXGLAS ® 6N, PLEXGLAS ® 8N and others.
  • said copolymer C is used in amount of 3-9 wt%, more preferably 5-7 wt%, based on the total weight of the polymer composition.
  • the copolymer C preferably has a weight-average molecular weight of from 10,000 to 500,000 g/mol; more preferable of from 79,000 to 175,000 g/mol.
  • Said copolymer C, the copolymer of styrene and maleic anhydride (SMA for short), could be selected from XIRAN® from Polyscope Polymers B.V. 6161 RA Geleen, Netherland.
  • the polymer composition can also comprise, alongside of polyblend A, polymer B, and copolymer C, in a manner known per se, conventional additives, and/or auxiliaries, examples being heat stabilizers, UV stabilizers, UV absorbers, antioxidants, and/or colorants, pigments, or organic dyes. It is preferable that the amount of conventional additives, and/or auxiliaries present is not more than 10% by weight, particularly preferably not more than 5% by weight, in particular not more than 2% by weight, based on the total weight of the polymer composition.
  • the polymer composition can, if appropriate, also comprise absolutely no additives, and/or auxiliaries.
  • Boric acid for example is very suitable for use as a thermal stabilizer.
  • UV stabilizers that also have a high acidity, preferably with a pKa of at most 8, more preferably at most 7, even more preferably at most 6, the pKa having been determined in a mixture of 50 wt% isopropyl alcohol and 50 wt% water at 23°C.
  • examples of this are 2-(2'-hydroxy-5'-methyl-phenyl)-benzotriazole or hindered amine light stabilizers (HALS) compounds, such as 8-acetyl-3-dodecyl-7,7,9,9-tetra-methyl- 1 ,3,8-triazaspiro(4,5)decane-2,4-dione for example.
  • HALS hindered amine light stabilizers
  • UV stabilizers are used in an amount of 0.005-2.0 wt%, based on the total weight of the polymer composition.
  • UV stabilizer with a high acidity for example one of those mentioned above
  • a second UV stabilizer with a lower acidity provided that the second UV stabilizer is present in a lower concentration than the first one.
  • Benzotriazole derivatives are also suitable UV absorbers, which is selected from the group consisting of 2-(2'-hydroxy-5'-methylphenyl)-benzotriazole, triazine derivatives, e.g. 2-(4,6-diphenyl-1 ,3,5-triazin-2-yl)-5-hexyloxy)phenol, hindered amine light stabilizers, and combinations thereof.
  • UV absorbers which is selected from the group consisting of 2-(2'-hydroxy-5'-methylphenyl)-benzotriazole, triazine derivatives, e.g. 2-(4,6-diphenyl-1 ,3,5-triazin-2-yl)-5-hexyloxy)phenol, hindered amine light stabilizers, and combinations thereof.
  • UV absorbers which is selected from the group consisting of 2-(2'-hydroxy-5'-methylphenyl)-benzotriazole, triazine derivatives, e.g. 2-(4,6-diphenyl
  • antioxidants as octadecyl-3-(3,5-di-tert.butyl-4-hydroxyphenyl)-propionate in the name of IRGANOX® 1076 from Ciba is more preferred.
  • lubricants or mold-release agents are particularly important, and can reduce the level of, or entirely prevent, possible adhesion of the polymer composition to the injection mold.
  • many moldings, particularly injection-molded parts are non-transparent but have a color, therefore comprising colorants, pigments, or organic dyes, as additives.
  • Parts for outdoor uses generally comprise UV stabilizers, UV absorbers, or antioxidants for additional protection from weathering.
  • Lubricants can therefore be used as auxiliaries, examples being those selected from the group of the saturated fatty acids whose number of carbon atoms is less than 20, preferably from 16 to 18, or from the saturated fatty alcohols whose number of carbon atoms is less than 20, preferably from 16 to 18.
  • Quantitative proportions present are preferably very small, at most 0.25% by weight, for example from 0.05 to 0.2% by weight, based on the polymer composition.
  • Suitable lubricants are stearic acid, palmitic acid, industrial mixtures composed of stearic and palmitic acid.
  • suitable lubricants are n-hexadecanol, n-octadecanol, and industrial mixtures composed of n-hexadecanol and n-octadecanol.
  • Stearyl alcohol is a particularly preferred lubricant or mold-release agent.
  • the slowly moving mixer produces mechanical mixing without eliminating phase boundaries (see 'Ullmans Encyklopaedie der ischen Chemie', 4th Ed., Verlag Chemie.Vol. 2, pp.282-311).
  • thermoplastic processing by homogeneous mixing in the melt, with the using of heatable mixing apparatus at suitable temperatures, in kneader mixers or preferable in extruders, e.g.
  • B-PMMA-1 is a polyblend of 15-16 wt% polybutadiene and 84-85 wt% methyl methacrylate based polymer based on the weight of the polyblend, wherein the methyl methacrylate based polymer comprises 65-70wt% MMA, 20-25wt% styrene, 5-10wt% ethyl acrylate, based on the weight of methyl methacrylate based polymer.
  • B-PMMA-1 is provided from EVONIK.
  • B-PMMA-2 is a polyblend of 20 wt% polybutadiene and 80wt% methyl methacrylate based polymer based on the weight of the polyblend, wherein the methyl methacrylate based polymer comprises about 94wt% MMA, 6 wt% styrene, based on the weight of methyl methacrylate based polymer.
  • B-PMMA-2 is provided from Kaneka.
  • PMMA-1 is a polymer of 90-92wt% MMA and 8-10%wt% methyl acrylate. PMMA-1 is provided from EVONIK.
  • PMMA-2 is a polymer of 98-99 wt% MMA, and 1-2 wt% methyl acrylate. PMMA-2 is provided from EVONIK.
  • SMA-1 is a copolymer of 26wt% maleic anhydride and 74wt% styrene with a viscosity number of 0.335dl/g according to ISO 1628. SMA-1 is provided by Polyscope.
  • SMA-2 is a copolymer of 23wt% maleic anhydride and 77% wt% styrene with a molecular weight Mw of 110,000 g/mol. SMA-2 is provided by Polyscope.
  • the weight-average molecular weight of polymer is determined according to GPC process in a manner known in the art.
  • the mixture was compounded by single screw extruder with 30 mm screw diameter (Type SSE30; from Ruiya) with melt temperature 240°C and rotation speed 50 rpm. Strands out of the die went through a water tank, cooled down and were pelletized.
  • the granules were dried with desiccant-drier MOTAN at 80°C for 2 h and then injection molded on melt temperature of 240°C in a injection molding machine SUMITOMO SED50 into specimens of 80x10x4 mm for impact testing and plates of 3 mm thickness for testing optical properties and pencil hardness.
  • the pencil hardness is tested according to ASTM D3363.
  • the plate has a transmission of the plate of 90 %( according to ASTM D1003), a haze of 5 % and the Charpy impact strength of 87.0 kJ/m 2 (according to ISO 179).
  • the plate looks crystal clear.
  • the haze value of products is measured according to ASTM D1003 by Spectrometer GRETAG MCBETH COLOREYE 7000. According to ASTM D1003, material having a haze value greater than 30 % is considered diffusing.
  • the products are free of toxic substances and substances which are suspected of causing cancer, like acrylonitrile.
  • the product combines low haze and high impact level with outstanding surface hardness of pencil hardness of 1 H.
  • a mixture with 70 wt% B-PMMA-1 and 30 wt% PMMA-1 was mixed with a vertical batch mixer (Type SVM-25 from Shini Machinery) for 3 min.
  • the plate prepared by the comparative example is very hazy and looks translucent. Examples b1-3)
  • a mixture with 67 wt% PMMA-1 and 33 wt% B-PMMA-2 was mixed with a vertical batch mixer (Type SVM-25 from Shini Machinery) for 3 min.
  • a mixture with 50 wt% PMMA-1 , 33 wt% B-PMMA-2 and 17 wt% SMA-2 was mixed with a vertical batch mixer (Type SVM-25 from Shini Machinery) for 3 min.
  • the products are free of toxic substances and substances which are suspected of causing cancer, like acrylonitrile.
  • a mixture with 74.5 wt% PMMA-2, 17 wt% B-PMMA-2 and 8.5 wt% SMA-2 was mixed with a vertical batch mixer (Type SVM-25 from Shini Machinery) for 3 min.
  • the products are free of toxic substances and substances which are suspected of causing cancer, like acrylonitrile.
  • Table 3 shows the best optical property (highest transmission and lowest haze) is achieved around 6 wt% SMA-1 when the compositions contains 70wt% B-PMMA-1 , wherein in Examples e) and f), the mixture was compounded and injection molded as described in Example a).
  • Table 4 shows the formulations and test results for compositions containing 80% B-PMMA-1.
  • the haze value of the blends also shows a minimum around 5 wt% SMA-1 , wherein in Examples g) and h), the mixture was compounded and injection molded as described in Example a).
  • Haze of compound with 6 wt% of SMA-1 keeps almost the same when temperature is increased from 4°C to 50°C.
  • Table 5 Haze values of polyblends with or without SMA-1 after 2 h annealing at 4°C
  • the table 5 shows that the haze values of polyblends with 6 % of SMA-1 still remain low in the annealing process.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention porte sur une composition de polymère présentant des propriétés optiques et de surface améliorées et sur un procédé de préparation de celle-ci. La composition de polymère comprend a) 1-90 % en poids d'un mélange polymère A comprenant du polybutadiène et un polymère à base de méthacrylate de méthyle, b) 1-90 % en poids d'un polymère B, qui est un polymère à base de méthacrylate de méthyle, et c) 1-20 % en poids d'un copolymère C comprenant 18-35 % en poids d'anhydride maléique et 65-82 % en poids de styrène.
PCT/CN2009/074654 2009-10-28 2009-10-28 Composition de polymère présentant des propriétés améliorées et son procédé de préparation WO2011050521A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2009/074654 WO2011050521A1 (fr) 2009-10-28 2009-10-28 Composition de polymère présentant des propriétés améliorées et son procédé de préparation
TW099136324A TW201130907A (en) 2009-10-28 2010-10-25 Polymer composition with improved properties and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/074654 WO2011050521A1 (fr) 2009-10-28 2009-10-28 Composition de polymère présentant des propriétés améliorées et son procédé de préparation

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104072923A (zh) * 2014-06-18 2014-10-01 金发科技股份有限公司 一种高耐热透明增强材料及其制备方法和应用
WO2017162393A1 (fr) * 2016-03-21 2017-09-28 Sabic Global Technologies B.V. Composition polymère comprenant un polymère (méth)acrylique ayant de bonnes propriétés optiques et une bonne résistance thermique
EP3632938B1 (fr) * 2018-10-05 2023-05-03 Trinseo Europe GmbH Monomère aromatique à vinylidène substitué et polymères d'esters (méth)acrylates cycliques

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2024940A1 (de) * 1970-05-22 1971-12-02 Basf Ag Thermoplastische Formmassen
US4647620A (en) * 1984-08-24 1987-03-03 Doak Kenneth W Polyblends of a copolymer of a vinyl aromatic monomer and an unsaturated dicarboxylic acid anhydride with a methyl methacrylate homopolymer or copolymer
WO1998028365A1 (fr) * 1996-12-20 1998-07-02 Dsm N.V. Composition polymere
US20020167112A1 (en) * 2001-02-06 2002-11-14 Colburn Peter D. Modified acrylic based compositions of enhanced optics and low temperature impact strength

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2024940A1 (de) * 1970-05-22 1971-12-02 Basf Ag Thermoplastische Formmassen
US4647620A (en) * 1984-08-24 1987-03-03 Doak Kenneth W Polyblends of a copolymer of a vinyl aromatic monomer and an unsaturated dicarboxylic acid anhydride with a methyl methacrylate homopolymer or copolymer
WO1998028365A1 (fr) * 1996-12-20 1998-07-02 Dsm N.V. Composition polymere
US20020167112A1 (en) * 2001-02-06 2002-11-14 Colburn Peter D. Modified acrylic based compositions of enhanced optics and low temperature impact strength

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104072923A (zh) * 2014-06-18 2014-10-01 金发科技股份有限公司 一种高耐热透明增强材料及其制备方法和应用
WO2017162393A1 (fr) * 2016-03-21 2017-09-28 Sabic Global Technologies B.V. Composition polymère comprenant un polymère (méth)acrylique ayant de bonnes propriétés optiques et une bonne résistance thermique
CN109071910A (zh) * 2016-03-21 2018-12-21 Sabic环球技术有限责任公司 具有良好光学性质和耐热性的包含(甲基)丙烯酸类聚合物的聚合物组合物
EP3632938B1 (fr) * 2018-10-05 2023-05-03 Trinseo Europe GmbH Monomère aromatique à vinylidène substitué et polymères d'esters (méth)acrylates cycliques

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