COMPOSITIONS COMPRISING POLYETHER-URETHANE-UREA ADDITIVES FOR BLOCK RESISTANCE AND OPEN TIME.

摘要

A composition comprising: (a) a hydrophilic polyurethane comprising polymerized units of: (i) a water-soluble polyol having hydroxyl functionality from two to four and a weight-average molecular weight from 800 to 16,000; and (ii) an aliphatic polyisocyanate having isocyanate functionality from two to six; wherein polymerized ethylene oxide units comprise at least 85 wt% of said hydrophilic polyurethane; and at least one of: (b) a saccharide having at least 5 hydroxyl groups and Mw from 300 to 4,000; (c) a dispersant polymer having Mw from 700 to 50,000 and from 10 to 55 wt% polymerized residues of C3-C6 carboxylic acid monomer and (d) a surfactant having HLB 11 and 12 to 100 polymerized units of ethylene oxide.