Curable filled polysiloxane compositions

Details Curable filled polysiloxane compositions Curable filled polysiloxane compositions

C - Chemistry, Metallurgy

08

L

C08L 83/04 (2006.01) C08L 57/10 (2006.01)

Patent

CA 2083458

Abstract of the Disclosure The specification describes and claims a moisture curable composition comprising hydroxypolysiloxane, silane curing agent finely divided filler (preferably calcium carbonate), catalyst, and as rheological additive, a polymer having on its polymer chain at least one carboxylic acid anhydride group. Preferred rheological additives are polybutadiene polymers treated with e.g. maleic acid anhydride. These products have improved rheology for sealant use.

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