Patent ID: 11912862
Assignee: EASTMAN CHEMICAL COMPANY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC C

Claim 0:
1. A composition comprising:
(a) a polyester consisting essentially of residues of:
(i) terephthalic acid and isophthalic acid; and
(ii) a blend of at least two glycols;

wherein the amount of terephthalic acid is 15 mole percent to 20 mole percent and the amount of isophthalic acid is 80 to 85 mole percent wherein the total amount of terephthalic acid and isophthalic acid in the resin equals 100 mole percent,
wherein said glycol blend is selected from the group consisting of 2,2,4,4-tetramethyl-1,3-cyclobutanediol combined with at least one of 1,4-cyclohexane dimethanol, 1,3-cyclohexane dimethanol, ethylene glycol, 2-methyl 1,3-propane diol, and 1,6-hexanediol; and
(b) a non-aqueous solvent;, wherein the composition remains clear at a temperature of 20-30° C. for at least 120 days.