BLOCK COPOLYMERS COMPRISING POLY(1,3-TRIMETHYLENE TEREPHTHALATE) AND POLY(1,3-TRIMETHYLENE 2,6-NAPHTHALATE)

摘要

Disclosed are a composition, an article comprising the composition, and a processes for producing the composition. The composition comprises a block copolymer, which comprises or is produced from poly(1,3-trimethylene terephthalate) sequences and poly(1,3-trimethylene naphthalate) sequences with less than 50 wt% of poly(1,3-trimethylene naphthalate) and the process comprises combining poly(1,3-trimethylene terephthalate) and poly(1,3-trimethylene 2,6-naphthalate) under controlled transesterification to produce the composition.