Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1984-11-01
1986-06-17
Smith, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525306, C08L 3106, C08L 3304, C08F26504
Patent
active
045957282
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. % 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: ##STR1## 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 copolymerizable vinyl or vinylidene monomer. The impact-resistant resin composition has excellent transparency and weatherability and a good surface gloss.
REFERENCES:
patent: 3843753 (1974-10-01), Owens
patent: 3966846 (1976-06-01), Gutmann et al.
Nakai Yoshio
Tateyama Masamitsu
Mitsubishi Rayon Company Ltd.
Smith Edward J.
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