| US 7,491,788 B1 | ||
| High heat polycarbonate compositions, methods for the preparation thereof, and articles derived therefrom | ||
| Chiel Albertus Leenders, Fijnaart (Netherlands); Brian Mullen, Mt. Vernon, Ind. (US); and Adam S Zerda, Evansville, Ind. (US) | ||
| Assigned to SABIC Innovative Plastics IP B.V., Bergen op Zoom (Netherlands) | ||
| Filed on Jun. 29, 2006, as Appl. No. 11/427,364. | ||
| Claims priority of provisional application 60/747727, filed on May 19, 2006. | ||
| Int. Cl. C08G 64/00 (2006.01); C07D 409/00 (2006.01) | ||
| U.S. Cl. 528—196 [548/466; 548/471; 548/472; 548/476] | 31 Claims |
| 1. A melt-blended composition formed from, based on the total weight of the melt-blended composition,
0 to 20 wt % of an additive; and
to 100 wt % of a polymer composition, wherein the polymer composition comprises, based on the total weight of the polymer composition,
5 to 95 wt % of a high Tg copolycarbonate of formula (1)
 wherein the mole ratio of x:y is 35:65 to 90:10,
R1 is derived from a dihydroxy compound of formula (2)
 wherein R3 and R5 are each independently a halogen or a C1-6 alkyl group, R4 is a C1-6 alkyl, phenyl, or phenyl substituted with up to five halogens or C1-6 alkyl groups, and each c is independently 0 to 4;
R2 is derived from a dihydroxy compound of formula (6):
 wherein Ra and Rb are each independently a halogen atom or a monovalent C1-6 alkyl group; p and q are each independently integers of 0 to 4; and Xa is methylene, cyclohexylmethylene, 2-[2.2.1]-bicycloheptylidene, ethylidene, isopropylidene, neopentylidene, cyclohexylidene,
or cyclopentadecylidene; and
wherein the high Tg copolycarbonate has a Tg of 200° C. or more; and
95 to 5 wt % of a polycarbonate of formula (9)
 wherein R9 is derived from a dihydroxy compound of formula (6)
 wherein Ra and Rb are each independently a halogen atom or a monovalent C1-6 alkyl group; p and q are each independently integers of 0 to 4; and Xa is methylene, cyclohexylmethylene, 2-[2.2.1]-bicycloheptylidene, ethylidene, isopropylidene, neopentylidene, cyclohexylidene,
or cyclopentadecylidene; and
wherein the polycarbonate of formula (9) has a glass transition temperature of less than 200° C.; and
0.001 to 0.1 wt % of a transesterification catalyst.
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