Patent ID: 7144945
Filing Date: 2006-12-05
Classification: C09D

Abstract:
1. An aqueous coating composition comprising: a) 1 to 64 wt % of a non-crosslinkable water-dispersible oligomer(s); b) 4 to 76 wt % of a dispersed polymer(s); c) 0 to 20 wt % of co-solvent; d) 20 to 80 wt % of water; where a)+b)+c)+d)=100%; where the weight ratio of a):b) is in the range of from 8:92 to 80:20; and wherein said composition when drying to form a coating has the following properties: i) an open time of at least 20 minutes; ii) a wet edge time of at least 10 minutes; iii) a tack-free time of ≦24 hours; iv) an equilibrium viscosity of ≦5,000 Pa·s, at any solids content when drying in the range of from 20 to 55% by weight of the composition, using any shear rate in the range of from 9±0.5 to 90±5 s