Thermoplastic polyester compositions containing certain low...

Details Thermoplastic polyester compositions containing certain low... Thermoplastic polyester compositions containing certain low...

C - Chemistry, Metallurgy

08

L

400/3037

C08L 67/02 (2006.01) C08L 51/04 (2006.01) C08L 63/00 (2006.01) C08L 63/02 (2006.01)

Patent

CA 1263977

ABSTRACT OF THE DISCLOSURE Novel thermoplastic polyester compositions having improved impact behavior are produced. These compositions comprise a blend of poly (C2-C4 alkylene terephthalate) with certain low molecular weight diepoxide resins having a molecular weight between about 350 and about 2,100 and consisting essentially of at least one condensation product of bisphenol A or brominated bisphenol A and epihalohydrin and represented by the general formula (I): Image Formula (I) wherein X is bromine or hydrogen and n is an average number above zero and less than about 2.3, a triphenyl phosphonium halide catalyst, and a multiphase composite polymer. The multiphase polymer has a first elastomeric phase polymerized from a monomer system including butadiene or butadiene/styrene and a final rigid thermoplastic phase polymerized in the presence of the elastomeric phase.

494346

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