SULFOPOLYESTER POLYMER COMPOSITIONS WITH IMPROVED WATER DISPERSIBILITY

摘要

A coating composition containing (A) a sulfopolyester, (B) water, and (C) a polymer resin. The sulfopolyester comprises residues of (a) an acid component comprising (i) a dicarboxylic acid compound, a derivative of a dicarboxylic acid compound, or combinations thereof and (ii) a sulfomonomer having at least one ionic sulfonate group covalently bonded directly or indirectly to an aromatic or cycloaliphatic ring and (b) a polyhydroxyl component comprising a 2,2,4,4-tetralkylcyclobutane-1,3-diol. The polyhydroxyl component may further contain residues of 1,4-cyclohexanedimethanol, neopentyl glycol, or a mixture thereof.

主权项

1. A coating composition comprising:
A. a sulfopolyester present in an amount of 5 to 95 weight %, based on the weight of the total resin solids of (A) and (C), said sulfopolyester containing residues of 2,2,4,4-tetraalkylcyclobutanediol (TACD); B. water present in an amount of 50 to 85 weight %, based on the weight of the coating composition; and C. a polymer resin present in an amount of 5 wt % to 95 wt %, based on the weight of the total resin solids of (A) and (C).