Adhesion of silicone sealants

Details Adhesion of silicone sealants Adhesion of silicone sealants

C - Chemistry, Metallurgy

09

J

400/7218

C09J 183/07 (2006.01) C08K 9/04 (2006.01) C08L 83/14 (2006.01) C09J 183/06 (2006.01) C09K 3/10 (2006.01)

Patent

CA 2033655

A moisture curing silicone sealant which adheres to a variety of substrates is produced by a method which first mixes a trialkoxysilethylene endblocked polydiorganosiloxane, a trialkoxysilane crosslinker, and a beta-dicarbonyl titanium catalyst, then adds a precipitated calcium carbonate filler having a fatty acid treated surface.

Un scellant à base de silicone séchant à l'humidité qui adhère à une diversité de substrats est produit par une méthode consistant premièrement à mélanger un trialcoxysiléthylène et un polydiorganosiloxane séquencé, du trialcoxysilane comme agent de couplage et un catalyseur à base de bêta-dicarbonyl-titane et, deuxièmement, à ajouter une charge de carbonate de calcium précipité dont la surface a été traitée avec un acide gras.

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