Abstract A composition comprising (a) 55 to 75 weight percent of an aromatic polycarbonate; (b) 8 to 15 weight percent of a polyalkylene terephthalate wherein the alkylene group is from 2 to about 10 carbon atoms; (c) 4 to 12 weight percent of an acrylonitrile-butadiene-alkenylaromatic copolymer; and (d) 13 to 22 weight percent of a flame retardant system to maintain a VO rating for a 1.6 mm sample under UL 94 test conditions wherein the overall composition has a DTUL in o C of less than or equal to 115 o C., a 3.2mm Notched Izod impact resistance in kilograms F-cm per cm of at least about 10, a surface gloss as measured with a Hunter Lab's gloss meter at 60 o reflection of less than or equal to about 80 and a VO rating for a 1.6mm sample under UL test conditions.
Inventors
👤 Ping Yuan Liu
Bibliographic Details
Application Number—
JurisdictionEP
Data Sourcegoogle_patents
Last Synchronized2026-10-26 15:40
CPC Classifications
C; C08; C08L; C08L69/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
70 words
A composition comprising (a) 55 to 75 weight percent of an aromatic polycarbonate; (b) 8 to 15 weight percent of a polyalkylene terephthalate wherein the alkylene group is from 2 to 10 carbon atoms; (c) 4 to 12 weight percent of an acrylonitrile-butadiene-alkenyl aromatic copolymer; and (d) 13 to 22 weight percent of a flame retardant system, all weight percent measured on the total of (a), (b), (c) and (d).
Claim 2
Dependent Claim
70 words
A composition comprising (a) 55 to 75 weight percent of an aromatic polycarbonate; (b) 8 to 15 weight percent of a polyalkylene terephthalate wherein the alkylene group is from 2 to 10 carbon atoms; (c) 4 to 12 weight percent of an acrylonitrile-butadiene-alkenyl aromatic copolymer; and (d) 13 to 22 weight percent of a flame retardant system, all weight percent measured on the total of (a), (b), (c) and (d).
Claim 3
Dependent Claim
21 words
The composition of claim 1 wherein the polyalkylene terephthalate is polyethylene terephthalate or polybutylene terephthalate, and the acrylonitrile-butadiene-alkenylaromatic copolymer is acrylonitrile-butadiene-styrene.
Claim 4
Dependent Claim
12 words
The composition in accordance with claim 1 including a drip retarding agent.
Claim 5
Dependent Claim
12 words
The composition in accordance with claim 1 wherein (a) comprises bisphenol-A polycarbonate.
Claim 6
Dependent Claim
12 words
The composition in accordance with claim 1 wherein (b) comprises polybutylene terephthalate.
Claim 7
Dependent Claim
11 words
The composition in accordance with claim 1 wherein (c) comprises acrylonitrile-butadiene-styrene.
Claim 8
Dependent Claim
29 words
The composition in accordance with any one of claims 1, 5 and 6 wherein (d) comprises a combination of a flame retardant salt and a brominated compound or oligomer.
Claim 9
Dependent Claim
14 words
The composition in accordance with claim 7 wherein an antimony compound is also present.