US 7,553,895 B2
	Polycarbonate compositions and articles formed therefrom
Yuxian An, Xuhui District (China); Jing Chen, MinHang District (China); Hua Jiao, Shijiazhuang (China); Yegang Lin, Pudong New District (China); Mahari Tjahjadi, Shanghai (China); and XinMin Yang, Shanghai (China)
Assigned to SABIC Innovative Plastics IP B.V., Bergen op Zoom (Netherlands)
Filed on Jun. 29, 2006, as Appl. No. 11/427,472.
Prior Publication US 2008/0004397 A1, Jan. 03, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 51/00 (2006.01); C08K 5/42 (2006.01)

U.S. Cl. 524—162  [524/170; 525/64; 525/67]

20 Claims

1. A thermoplastic composition comprising (i) 100 parts by weight of polycarbonate; (ii) an elastomer-modified graft copolymer; and (iii) a polysiloxane-polycarbonate copolymer, wherein the elastomer-modified graft copolymer and the polysiloxane-polycarbonate copolymer together equal 4 weight percent or less, and the composition has a Notched Izod Impact strength at −30° C. of about 720 J/m or greater when measured according to ASTM D256.