Patent ID: 8889820
Filing Date: 2014-11-18
Classification: C08G,C08L

Abstract:
1. An amorphous copolyester comprising the polymerization reaction product of (a) a monomer of formula I wherein R (b) a terephthalyl component selected from terephthalic acid, a di(C (c) 1,4-cyclohexane dimethanol; wherein monomer units of monomer (a) are present in an amount from 7 to less than 12 mole % of the copolyester, monomer units of terephthalyl component (b) are present in an amount from more than 33 to 48 mol %, and monomer units of the 1,4-cyclohexane dimethanol (c) are present in an amount of 45 to 50 mole %, each based on the total moles of repeat units in the copolyester; and wherein the copolyester has a glass transition temperature of at least 107° C., an intrinsic viscosity of at least 0.7 dl/g, and a molded sample has a Notched Izod value of at least 290 J/m determined in accordance with ASTM D256.