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US 4,902,743 AGranted
Low gloss thermoplastic blends
AssigneeGeneral Electric Company
InventorOmar M. Boutni
Life of this patent
Estimating the term…
Abstract
A low gloss thermoplastic with good physical properties comprises a blend of a polycarbonate with ABS and a gloss-reducing amount of a glycidyl methacrylate copolymer.
Claims9
A low-gloss thermoplastic blend comprising:
- (a) an aromatic carbonate polymer;
- (b) an acrylonitrile-butadiene-styrene copolymer;
- and
- (c) an effective gloss-reducing amount of from 0.1 to 5% of at least one polymer of glycidyl methacrylate, the weight ratio of (a) to (b) being in the range of about 99:1 to about 20.80.
1 more element
A low gloss thermoplastic blend which comprises:
- (a) a polycarbonate derived principally from bisphenol A and phosgene;
- (b) an ABS having above about 20% polybutadiene rubber content and made by emulsion polymerization, the weight ratio of polymer (a) to copolymer (b) being in the range of from about 95:5 to about 30:70;
- and
- (c) a copolymer of glycidyl methacrylate having at least about 1% by weight of glycidyl methacrylate units, copolymerized with styrene, said polymer (c) being present in the range of from about 0.1% to about 5% relative to the weight of polymer (a) plus copolymer (b).
1 more element
A low-gloss thermoplastic blend comprising:
- (a) an aromatic carbonate polymer;
- (b) an acrylonitrile-butadiene-styrene copolymer;
- and
- (c) an effective gloss-reducing amount of from 0.1 to 5% of at least one binary copolymer of glycidyl methacrylate with styrene, the weight ratio of (a) to (b) being in the range of about 99:1 to about 20:80.
1 more element
Dependencies are inferred from the claim text.