Abstract: A polycarbonate composition having improved flame retardant properties is disclosed, together with methods for preparing the same.

Abstract: A molding composition has a bulk resin component formed from: a) 5 to 93 percent by weight of cycloaliphatic polyester resin such as poly(1,4-cyclohexane-dimethanol-1,4-dicarboxylate having a melt viscosity of at least 6000 poise; b) 5 to 93 percent by weight of an acrylate polymer or co-polymer; and c) 2 to 30 percent by weight of an impact modifier with a a shell comprising a repeating units derived from a C1-12 alkyl(meth)acrylate and a rubbery core having weatherability properties. The composition may further include a polycarbonate polymer or a styrene-acrylonitrile polymer as a phase compatabilizer as well as other conventional additives such as pigments, mineral fillers, antioxidants and the like. The composition has improved ductility, impact strength and weatherability.

Abstract: A polyester molding composition reinforced with fiber glass or other silica based filler which has color stability at relatively high temperatures and comprises (a) from 40 to 97 weight percent of a polyester resin; (b) from about 3 to about 60 weight percent fibrous glass or silica based filler or mixture; (c) less than about 5 percent by weight additional ingredients which include a combination of stabilizers consisting essentially of an acidic quencher, a thioester and a phosphonite and (d) optionally from 2 to 30 weight percent of a flame retarding composition.