C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/4107, 400/53
C08L 83/04 (2006.01) C08J 3/03 (2006.01) C08L 29/02 (2006.01) C08L 29/04 (2006.01) C08L 83/06 (2006.01) C08L 83/07 (2006.01) C09D 183/04 (2006.01)
Patent
CA 2009262
Aqueous emulsions of curable silicone compositions provide cured coatings having improved gloss and/or water-repellancy and/or adhesive release if formulated to contain polyvinylalcohol having a degree of hydrolysis of 90 mol% or more. The extent of improvement is directly related to the degree of hydrolysis of the PVA. PVA having an average degree of hydrolysis of from 94 to 99 mol% is particularly effective for improving these properties of cured coatings. Conveniently, a mixture of two or more commercially available PVAs having different degrees of hydrolysis can be used to arrive at a PVA having a desired degree of hydrolysis.
Dow Corning Corporation
Gowling Lafleur Henderson Llp
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