C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
154/122, 117/143
C09D 143/04 (2006.01) B32B 17/10 (2006.01) C08F 2/48 (2006.01) C08F 230/08 (2006.01) C08J 7/04 (2006.01) C09D 4/00 (2006.01)
Patent
CA 1314647
ABSTRACT OF THE INVENTION: An aqueous, radiation curable, coating composition is disclosed which comprises (A) from 50 to 85 percent, based on the total weight of the dispersion, of a vinyl functional silane, (B) from 15 to 50 percent, based on the total weight of tbe dispersion of a multifunctional acrylate, and (C) optionally, from 1 to 3 weight percent of a photoinitiator. The vinyl- functional silane is the partial condensate of silica and a silane, such that at least sixty percent of the silane is a vinyl-functional silane conforming to the formula (R)a Si(R')b(R")c wherein R is allyl or vinyl functional alkyl R' is hydrolyzable alkoxy or methoxy R" is non-hydrolyzable, saturated alkyl, phenyl, or siloxy, such that a + b + c = 4; and a > 1; b > 1; c > 0. The above-described coating composition may be applied to plastic materials and cured by exposure to ultraviolet or electron beam irradiation to form a substantially clear, abrasion resistant layer. The radiation curable composition has particular utility as an abrasion resistant coating for synthetic films, preferably polyester films. Such coated films may then be employed in automotive glazing and touch panel control applications.
583769
Hoeshst Celanese Corporation
Smart & Biggar
LandOfFree
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