B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/143
B05D 7/00 (2006.01) B05D 1/36 (2006.01) C03C 17/34 (2006.01) C09D 5/16 (2006.01) C09D 183/04 (2006.01)
Patent
CA 1183412
A METHOD FOR IMPROVING THE ADHESION OF ORGANOPOLYSILOXANE ELASTOMERS Abstract of the Disclosure A method for improving the adhesion of organopoly- siloxane elastomers to solid substrates which comprises (1) coating the substrate with a primer composition containing (a) a mixture consisting of a silane having an SiC-bonded aliphatic multiple bond and a silane having an SiC-bonded epoxy group; or (b) a stratum consisting of (i) at least a partially crosslinked organopolysiloxane containing SiO4/2 units, trimethylsiloxane units and vinyldimethylsiloxane units and (ii) at least a par- tially crosslinked organopolysiloxane elastomeric coating over said stratum, in which the organopolysiloxane elastomer is obtained from an organopolysiloxane composition which is stable under anhydrous conditions, but crosslinks when exposed to moisture at room temperature, (2) applying a crosslinkable organopolysiloxane composition over said primer, in which the crosslinkable organopolysiloxane composition contains a diorgano- polysiloxane, a crosslinking agent, a catalyst and at least one additional component, in which the component is flowable after the composition has crosslinked and/or a rod-shaped copolymer obtained from the copolymerization of styrene and n-butylacrylate in the presence of a diorganopolysiloxane by means of free radicals.
418974
Hohl Horst
Kochs Peter
Rogers & Bereskin
Wacker-Chemie Gmbh
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