Process for coating substrates

Details Process for coating substrates Process for coating substrates

C - Chemistry, Metallurgy

08

L

117/185, 204/91.

C08L 83/04 (2006.01) C09D 183/04 (2006.01) D06M 15/643 (2006.01)

Patent

CA 1162449

Docket No. Wa-7916 Paper No. 1 A PROCESS FOR COATING SUBSTRATES Abstract of the Disclosure A process for coating a substrate which comprises coating the substrate with a solution containing an organic solvent and (1) a diorganopolysiloxane having terminal SiC-bonded vinyl groups, (2) an organopolysiloxane having at least 3 Si-bonded hydrogen atoms per molecule, (3) a catalyst which promotes the addition of Si-bonded hydro- gen to an aliphatic multiple bond; and optionally (4) an agent which delays or retards the addition of Si-bonded hydrogen to an aliphatic multiple bond at room temperature, (5) a diorganopolysiloxane having a viscosity of at least 106 mPa.s at 25°C in which a vinyl group is bonded to a silicon atom in 0.033 to 3.33 percent of the diorganosiloxane units, while the other organic radicals in the diorganosiloxane units of the diorganopolysiloxane are free of aliphatic multiple bonds, and (6) an organosilicon adhesive compound. An acrylic acid ester polymer or copolymer (7) may be applied to the substrate simul- taneously with or prior to the application of the solution containing components (1) through (6) above.

396573

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