EP0143991A2
Expired / Lapsed
EP
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Impact-resistant methacrylic resin composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1984-10-31
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Granted: —
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Expires: 2004-10-31
Abstract
Abstract Disclosed is an impact-resistant methacrylic resin composition which comprises a graft copolymer [II] obtained by polymerizing 10 to 900 wt. parts of a monomer or monomeric mixture (B) comprising 80 to 100 wt. % of methyl methacrylate and 20 to 0 wt. % of at least one vinyl or vinylidene monomer copolymerizable therewith in the presence of 100 wt. parts of an acrylic elastomer [I] obtained by polymerizing monomeric mixture (A) comprising 9.9 to 29.9 wt. % of styrene and/or its derivative, 70 to 90 wt. % of at least one alkyl (C2-8) acrylate, 0.1 to 5 wt. % of at least one monomer represented by the formula: and 0 to 5 wt. % of a crosslinkable copolymerizable monomer having at least 2 carbon-to-carbon double bonds. This graft copolymer [II] may be used in combination with a methacrylic resin [III] obtained by polymerizing a monomer or monomeric mixture (C) comprising 80 to 100 wt. % methyl methacrylate and 20 to 0 wt. % of at least one copotymeriz- able vinyl or vinylidene monomer. The impact-resistant resin composition has excellent transparency and weatherability and a good surface gloss.
Inventors
- 👤 Yoshio Nakai
- 👤 Masamitsu Tateyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 22:56
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04; C08F265/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
162 words
An impact-resistance methacrylic resin composition which comprises a graft copolymer [II] obtained by polymerizing 10 to 900 parts by weight of a monomer or monomeric mixture (B) comprising 80 to 100% by weight of methyl methacrylate and 20 to 0% by weight of at least one vinyl or vinylidene monomer copolymerizable therewith in the presence of 100 parts by weight of an acrylic elastomer [I] obtained by polymerizing a monomeric mixture (A) comprising 9.9 to 29.9% by weight of at least one monomer selected from the group consisting of styrene and derivatives thereof, 70 to 90% by weight of at least one alkyl ester of acrylic acid having an alkyl group having 2 to 8 carbon atoms, 0.1 to 5% by weight of at least one monomer selected from the group consisting of compounds represented by the following formula: and 0 to 5% by weight of a crosslinkable monomer copolymerizable with the foregoing monomers, which has at least 2 carbon-to-carbon double bonds.
Claim 2
Dependent Claim
162 words
An impact-resistance methacrylic resin composition which comprises a graft copolymer [II] obtained by polymerizing 10 to 900 parts by weight of a monomer or monomeric mixture (B) comprising 80 to 100% by weight of methyl methacrylate and 20 to 0% by weight of at least one vinyl or vinylidene monomer copolymerizable therewith in the presence of 100 parts by weight of an acrylic elastomer [I] obtained by polymerizing a monomeric mixture (A) comprising 9.9 to 29.9% by weight of at least one monomer selected from the group consisting of styrene and derivatives thereof, 70 to 90% by weight of at least one alkyl ester of acrylic acid having an alkyl group having 2 to 8 carbon atoms, 0.1 to 5% by weight of at least one monomer selected from the group consisting of compounds represented by the following formula: and 0 to 5% by weight of a crosslinkable monomer copolymerizable with the foregoing monomers, which has at least 2 carbon-to-carbon double bonds.
Claim 3
Dependent Claim
28 words
An impact-resistant methacrylic resin composition according to claim 1, wherein the acrylic elastomer [I] is in the form of particles having a size of 0.03 to 0.25 pm.
Claim 4
Dependent Claim
19 words
An impact-resistant methacylic resin composition according to claim 1, wherein said monomer represented by said formula is diallyl isophthalate.
Claim 5
Dependent Claim
19 words
An impact-resistant methacrylic resin composition according to claim 1, wherein said monomer represented by said formula is diallyl terephthalate.
Claim 6
Dependent Claim
43 words
An impact-resistant methacrylic resin composition according to claim 1, wherein the vinyl monomer used for the graft copolymer [II] is selected from the group consisting of alkyl acrylates having an alkyl group of 1 to 8 carbon atoms, styrene, acrylonitrile and methacrylic acid.
Claim 7
Dependent Claim
42 words
An impact-resistant methacrylic resin composition according to claim 1, wherein said crosslinkable monomer is selected from the group consisting of ethylene glycol diacrylate, ethylene glycol dimethacrylate, 1,3-butylene diacrylate, 1,3-butylene dimethacrylate, 1,4-butanediol diacrylate, 1,4-butanediol dimethacrylate, tetraethylene glycol diacrylate, tetraethylene glycol dimethacrylate and divinylbenzene.
Claim 8
Dependent Claim
249 words
An impact-resistant methacrylic resin composition which comprises: (i) a graft copolymer [II] obtained by polymerizing 10 to 900 parts by weight of a monomer of monomeric mixture (B) comprising 80 to 100% by weight of methyl methacrylate and 20 to 0% by weight of at least one vinyl or vinylidene monomer copolymerizable therewith in the presence of 100 parts by weight of an acrylic elastomer [I] obtained by polymerizing a monomeric mixture (A) comprising 9.9 to 29.9 % by weight of at least one monomer selected from the group consisting of styrene and derivatives thereof, 70 to 90% by weight of at least one alkyl ester of acrylic acid having an alkyl group having 2 to 8 carbon atoms, 0.1 to 5% by weight of at least one monomer selected from the group consisting of compounds represented by the following formula: and 0 to 5% by weight of-a crosslinkable monomer copolymerizable with the foregoing monomers, which has at least 2 carbon-to-carbon double bonds, and (ii) a methacrylic resin [III] obtained by polymerizing a monomer or monomeric mixture (C) comprising 80 to 100% by weight of methyl methacrylate and 20 to 0% by weight of at least one vinyl or vinylidene monomer copolymerizable therewith; the amount of the graft copolymer [II] being such that the proportion of the acrylic elastomer [I] in the graft copolymer [II ] to the total of the graft copolymer [II] and the methacrylic resin [III] is in the range of 0.5 to 70% by weight.
Claim 9
Dependent Claim
249 words
An impact-resistant methacrylic resin composition which comprises: (i) a graft copolymer [II] obtained by polymerizing 10 to 900 parts by weight of a monomer of monomeric mixture (B) comprising 80 to 100% by weight of methyl methacrylate and 20 to 0% by weight of at least one vinyl or vinylidene monomer copolymerizable therewith in the presence of 100 parts by weight of an acrylic elastomer [I] obtained by polymerizing a monomeric mixture (A) comprising 9.9 to 29.9 % by weight of at least one monomer selected from the group consisting of styrene and derivatives thereof, 70 to 90% by weight of at least one alkyl ester of acrylic acid having an alkyl group having 2 to 8 carbon atoms, 0.1 to 5% by weight of at least one monomer selected from the group consisting of compounds represented by the following formula: and 0 to 5% by weight of-a crosslinkable monomer copolymerizable with the foregoing monomers, which has at least 2 carbon-to-carbon double bonds, and (ii) a methacrylic resin [III] obtained by polymerizing a monomer or monomeric mixture (C) comprising 80 to 100% by weight of methyl methacrylate and 20 to 0% by weight of at least one vinyl or vinylidene monomer copolymerizable therewith; the amount of the graft copolymer [II] being such that the proportion of the acrylic elastomer [I] in the graft copolymer [II ] to the total of the graft copolymer [II] and the methacrylic resin [III] is in the range of 0.5 to 70% by weight.
Claim 10
Dependent Claim
28 words
An impact-resistant methacrylic resin composition according to claim 7, wherein the acrylic elastomer [I] is in the form of particles having a size of 0.03 to 0.25 µm.
Claim 11
Dependent Claim
19 words
An impact-resistant methacrylic resin composition according to claim 7, wherein said monomer represented by said formula is diallyl isophthalate.
Claim 12
Dependent Claim
19 words
An impact-resistant methacrylic resin composition according to claim 7, wherein said monomer represented by said formula is diallyl terephthalate.
Claim 13
Dependent Claim
43 words
An impact-resistant methacrylic resin composition according to claim 7, wherein the vinyl monomer used for the gfart copolymer [II] is selected from the group consisting of alkyl acrylates having an alkyl group of 1 to 8 carbon atoms, styrene, acrylonitrile and methacrylic acid.
Claim 14
Dependent Claim
42 words
An impact-resistant methacrylic resin composition according to claim 7, wherein said crosslinkable monomer is selected from the group consisting of ethylene glycol diacrylate, ethylene glycol dimethacrylate, 1,3-butylene diacrylate, 1,3-butylene dimethacrylate, 1,4-butanediol diacrylate, 1,4-butanediol dimethacrylate, tetraethylene glycol diacrylate, tetraethylene glycol dimethacrylate and divinylbenzene.
Claim 15
Dependent Claim
50 words
An impact-resistant methacrylic resin composition according to claim 7, wherein said vinyl or vinylidene monomer used for the methacrylic resin [ III] is at least one monomer selected from the group consisting of alkyl acrylates having an alkyl group having 1 to 8 carbon atoms, styrene, acrylonitrile and methacrylic acid.
References Cited (Backward Citations)
No citation records indexed.
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