Patent ID: 8048980

Claim:
A polyester of the formula: wherein: each Y 1f is independently —C(═O)CH 2 O—, —C(═O)CH(CH 3 )O—, —C(═O)CH 2 OCH 2 CH 2 O—, and —C(═O)CH 2 CH 2 CH 2 CH 2 CH 2 O—; each Y f is independently —OCH 2 C(═O)—, —OCH(CH 3 )C(═O)—, —OCH 2 CH 2 OCH 2 C(═O)—, and —OCH 2 CH 2 CH 2 CH 2 CH 2 C(═O)—; k 1 is an integer from about 100 to about 5000; and each k 2a and k 2b is independently 1 to about 5.