US 7,321,014 B2 | ||
Transparent compositions, methods for the preparation thereof, and articles derived therefrom | ||
Katherine Glasgow, Evansville, Ind. (US); Brian Mullen, Mt. Vernon, Ind. (US); and Paul D. Sybert, Evansville, Ind. (US) | ||
Assigned to General Electric Company, Schenectady, N.Y. (US) | ||
Filed on Dec. 29, 2004, as Appl. No. 11/25,249. | ||
Prior Publication US 2006/0142527 A1, Jun. 29, 2006 | ||
Int. Cl. C08L 69/00 (2006.01); C08L 83/10 (2006.01) |
U.S. Cl. 525—464 [525/446; 528/286; 528/26; 528/29] | 31 Claims |
1. A composition comprising:
a first copolymer comprising
aromatic ester units of formula (1)
![]() ![]() a second copolymer comprising carbonate units of formula (2) and repeating siloxane units of formula (3)
![]() a transesterification catalyst, wherein a reaction product derived from the composition has a haze of less than or equal to 30%, measured according to ASTM
D1003-00 at a thickness of 3.2 millimeters.
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