| US 7,432,327 B2 | ||
| Transparent polymeric compositions comprising polysiloxane-polycarbonate copolymer, articles made therefrom and methods of making same | ||
| Katherine Glasgow, Evansville, Ind. (US); and Naresh Alle, Slidell, La. (US) | ||
| Assigned to SABIC Innovative Plastics IP B.V., Bergen op Zoom (Netherlands) | ||
| Filed on Dec. 30, 2004, as Appl. No. 11/26,362. | ||
| Prior Publication US 2006/0148986 A1, Jul. 06, 2006 | ||
| Int. Cl. C08L 83/10 (2006.01) | ||
| U.S. Cl. 525—106 [525/461] | 18 Claims |
| 1. A composition comprising:
a transparent polysiloxane-polycarbonate copolymer comprising 2 wt % to 10 wt % siloxane, wherein the transparent polysiloxane-polycarbonate
copolymer comprises polydiorganosiloxane units of formula (10):
 wherein each occurrence of R3 is the same or different and is selected from C1-13 monovalent organic radicals, each occurrence of R4 is independently a divalent C1-C30 hydrocarbon, and D is 1 to 1,000; and
styrene-acrylonitrile copolymer (SAN);
and, optionally, polycarbonate;
wherein the SAN comprises not more than 25 wt % acrylonitrile, and the composition is transparent, having a haze of not more
than 45% and a light transmission of at least 55%, per ASTM-D1003-61.
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