Patent ID: 9458354
Filing Date: 2016-10-04
CPC Classification: C08G,C09D,C09J

Claim Text:
1. A composition comprising an aqueous polyurethane dispersion, wherein the dispersion is a reaction product of: (a) toluene diisocyanate; (b) dimethylolpropionic acid; (c) 42 wt. %, based on the combined amounts of toluene diisocyanate, dimethylolpropionic acid, and dfPET, of a depolymerized polyethylene terephthalate (dfPET), said dfPET having a hydroxyl number of 225 mg KOH/g and comprising a reaction product of polyethylene terephthalate (PET) and one molar equivalent of neopentyl glycol per mole of PET; and (d) a chain extender selected from the group consisting of 1,4-butanediol; a mixture of 1,4-butanediol and piperazine; a mixture of 1,4-butanediol and polyethylene glycol 200; and a mixture of 1,6-hexanediol and 1,6-hexanediamine.