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US 5,290,863 AGranted
Compatibilization of polyphenylene ether with polyester using polystyrene-polycarbonate copolymer
AssigneeGeneral Electric Company
InventorsSterling B. Brown, Edward J. Fewkes
Life of this patent
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Abstract
There are disclosed thermoplastic resin compositions with improved impact strength and other physical properties, specifically compatibilized compositions comprising polyphenylene ethers and thermoplastic polyesters, with the compatibilization being effected through the use of polystyrene-polycarbonate copolymer.
Claims22
A compatibilized polyphenylene ether-polyester composition comprising:
- (a) polyphenylene ether resin;
- (b) polyester resin;
- and
- (c) a compatibilizer for (a) and (b) comprised of a block copolymer comprised of one or more polycarbonate blocks and one or more polystyrene blocks, which further comprises at least one impact modifier.
1 more element
A compatibilized polyphenylene ether-polyester composition comprising:
- (a) polyphenylene ether resin;
- (b) polyester resin;
- and
- (c) a compatibilizer for (a) and (b) comprised of a block copolymer comprised of one or more polycarbonate blocks and one or more polystyrene blocks, wherein the composition further comprises an additional polycarbonate polymer.
1 more element
A compatibilized polyphenylene ether polyester composition comprising:
- (a) polyphenylene ether;
- (b) polybutylene terephthalate;
- and
- (c) a block copolymer of the A-B-A type comprised of a polycarbonate as the block and a polystyrene as the A block, which further comprises at least one impact modifier.
1 more element
A compatibilized polyphenylene ether polyester composition comprising:
- (a) polyphenylene ether;
- (b) polybutylene terephthalate;
- and
- (c) a block copolymer of the A-B-A type comprised of a polycarbonate as the B block and a polystyrene as the A block, wherein the composition further comprises an additional polycarbonate polymer.
1 more element
Dependencies are inferred from the claim text.