C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 183/04 (2006.01) B05D 3/00 (2006.01) B05D 7/14 (2006.01) C09D 5/00 (2006.01) C09D 5/08 (2006.01)
Patent
CA 2417322
A metal-coupling composition composed of silane cross-linking and coupling agents wherein the coupling agent includes a vinyl moiety. The coupling composition is a replacement for iron-phosphatizing / chromate primering and chromate primering in zinc phosphatizing processes. In a preferred embodiment, the silane cross-linking agent has the following formula: Image and X is a trivalent group, each Y is independently a divalent group or series of divalent groups, each Q is independently -R or -OR and each R is independently a C1-10 alkyl group or aryl group, and -OR group(s) are hydrolysable; and the silane coupling agent has the following formula: Image each Q is independently -R or -OR and each R is independently a C1-10 alkyl group or aryl group, and -OR group(s) are hydrolysable;
Bereskin & Parr
Johnsondiversey Inc.
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