Water-dispersible block copolyesters

摘要

This invention relates to linear, water-dispersible sulfopolyesters prepared using high molecular weight polyethylene glycol blocks and low molecular weight polyethylene glycol. The high molecular weight polyethylene glycol has the formula H-(OCH2CH2)n-OH where n is 20 to 500, and the low molecular weight polyethylene glycol has the structure H-(OCH2CH2)n'-OH where n' is 2 to 6. The sulfopolyesters are useful as textile fiber sizes that possess improved adhesion, flexibility, and abrasion resistance.