Patent ID: 6063844
Filing Date: 2000-05-16
Classification: C08K,C08L

Abstract:
A thermoplastic resin composition, comprising:(a) an aromatic polycarbonate resin(b) a rubber modified graft copolymer, comprising a discontinuous elastomeric phase dispersed in a continuous rigid thermoplastic phase, wherein at least a portion of the rigid thermoplastic phase is chemically grafted to the elastomeric phase,(c) a sterically hindered phenol stabilizer compound according to the structural formula: ##STR17## wherein R.sub.1 and R.sub.2 are each independently (C.sub.1 -C.sub.12)alkyl, and R.sub.3 is (C.sub.1 -C.sub.12)alkyl, hydroxy(C.sub.1 -C.sub.12)alkyl or (C.sub.1 -C.sub.24)alkoxycarbonyl(C.sub.1-12)alkyl;(d) a thioester stabilizer compound according to the structural formula: ##STR18## wherein R.sub.4 is (C.sub.1 -C.sub.24)alkyl, or according to the structural formula: ##STR19## wherein R.sub.5 is (C.sub.1 -C.sub.24)alkyl, and (e) a phosphite stabilizer compound according to the structural formula: ##STR20## wherein R.sub.6 is (C.sub.1 -C.sub.24)alkyl or monocyclic aryl, optionally substituted with up to three (C.sub.1 -C.sub.12)akyl groups.