Patent ID: 7718720
Filing Date: 2010-05-18
Classification: C08K,C08L

Abstract:
1. A method of increasing the crystallization rate of a thermoplastic polyester composition, comprising: cooling a composition comprising a thermoplastic polyester and a nucleant from a temperature above the crystalline melting point of the thermoplastic polyester to a temperature below the crystalline melting point of the thermoplastic polyester, wherein the nucleant is a compound represented by the following chemical formula: wherein each R 1 is independently H, NR 2 R 2 , OH, OR 2 , SR 2 , SOR 2 , SO 2 R 2 , CN, COR 2 , CO 2 R 2 , CONR 2 R 2 , NO 2 , F, Cl, Br, or I; each R 1 in Formula 4 is independently H, OH, OR 2 , SR 2 , SOR 2 , SO 2 R 2 , CN, COR 2 , CO 2 R 2 , CONR 2 R 2 , NO 2 , F, Cl, Br, or I; and allowing the thermoplastic polyester to crystallize.