AMORPHOUS POLYESTER COMPOSITIONS

摘要

Disclosed herein are polyester compositions comprising the reaction product of: a) a precursor component comprising xanthene dicarboxylic acid (XDA), or a reactive derivative thereof; b) a terephthalate component comprising at least one di(C1-C3 alkyl) terephthalate, or terephthalic acid, or a combination thereof; c) a diol component comprising 1,4-cyclohexane dimethanol (CHDM); and d) at least one metal catalyst; methods of making same, and articles comprising the disclosed compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

主权项

1. A polyester composition comprising the reaction product of:
a) a precursor component comprising a xanthene dicarboxylic acid), a reactive derivative thereof, or a xanthene ester, or a combination thereof; b) a terephthalate component comprising at least one di(C1-C3 alkyl) terephthalate, or terephthalic acid, or a combination thereof; c) a diol component comprising 1,4-cyclohexane dimethanol; and d) at least one metal catalyst present in an amount from about 50 ppm to about 300 ppm,
wherein the polyester composition exhibits a glass transition temperature of at least about 105° C., wherein the polyester composition exhibits an intrinsic viscosity of at least about 0.7 dl/g, and wherein the polyester composition has a lead content of less than about 10 ppm.