Patent ID: 8986827
Filing Date: 2015-03-24
Classification: B05D,B32B,C08J,C08K,C09D,Y10T

Abstract:
1. A coating composition comprising (i) about 1-25 wt. % of an organic polymer material comprising (a) about 1-99 wt. % of water insoluble organic polymer, and (b) a complementary amount to total 100 wt. % of a water soluble organic polymer, (ii) about 0.5-10 wt. % of a crosslinking agent, (iii) about 0-1 wt. % of a surfactant, and (iv) a complementary amount to total 100 wt. % of water, in which the water insoluble organic polymer comprises polyvinyl butyral present in a form of finely divided solid particles dispersed in a liquid solution of the water soluble organic polymer, crosslinking agent and surfactant dissolved in the water, the polyvinyl butyral being in concentration from 0.025 to 1 wt. % of the liquid solution, in which the water soluble organic polymer is selected from the group consisting of polyvinyl alcohol, ethylene-vinyl alcohol copolymer and a mixture thereof, and in which the crosslinking agent comprises a compound effective to crosslink at least one of the water-insoluble organic polymer and the water soluble organic polymer.