Patent ID: 6583195
Filing Date: 2003-06-24
Classification: B05D,C09D,Y10S

Abstract:
A substantially 100% solids sealant composition for application to a porous surface which comprises:(a) a polymerizable compound which is a mixture of acrylates, the acrylate mixture comprising at least a first and a second acrylate, the second acrylate having a lower mean molecular weight than the first acrylate; and (b) a mixture of organic photoinitiators which initiates the polymerization reaction upon exposure of the composition to ultraviolet light, the mixture consisting essentially of: (1) a blend of: (a) phosphine oxide; (b) a phenyl ketone; (2) a first propanone; and (3) a mixture of: (a) a first benzophenone; (b) a second benzophenone, the second benzophenone being different from the first benzophenone; (c) a second propanone, the second propanone being different from the first propanone, and wherein the mixture of photoinitiators is present in a respective weight ratio of (a) to (b) to (c) of 0.5-1.0:0.031.0:0.51.0.