Compositions based on polyisocyanates and silicas

Details Compositions based on polyisocyanates and silicas Compositions based on polyisocyanates and silicas

C - Chemistry, Metallurgy

08

K

403/11, 403/28,

C08K 3/36 (2006.01) C04B 28/00 (2006.01) C04B 28/24 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/38 (2006.01) C08G 83/00 (2006.01) C08L 75/04 (2006.01)

Patent

CA 1064199

Abstract of the Disclosure Inorganic-organic compositions obtained from a mixture of components comprising: a) from 5 - 98% by weight of an organic polyiso- cyanate b) from 2 - 95% by weight of an aqueous silica sol containing about 20 - 60% by weight of said silica and, c) from 0 - 93% by weight of a water-binding com- ponent based on the total weight of a), b) and c). The products of the invention may be used in many forms including both porous and non-porous products as surface coatings having good ad- hesion and resistance to abrasion, as a mortar, and as a foam concrete for making molded products particularly in construc- tion engineering and civil engineering as for building walls, igloos, road building and the like.

199162

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