Fluid organosiliconic composition and process for preparing it

Details Fluid organosiliconic composition and process for preparing it Fluid organosiliconic composition and process for preparing it

C - Chemistry, Metallurgy

08

F

400/5358

C08F 283/00 (2006.01) C08L 83/10 (2006.01) C09K 3/00 (2006.01)

Patent

CA 1290876

ABSTRACT OF THE DISCLOSURE: An organosiliconic fluid composition suitable for use in sealants and comprising a liquid phase and a solid polymeric phase, which solid phase is insoluble and dispersed in the liquid phase, is obtained by polymerizing, under the influence of free-radical initiators, styrene, or a mixture of styrene with at least one other vinylic or acrylic monomer, in the presence of a liquid polyoxypro- pylenediol-?,.omega.-bis-allyl silylate having formula (I): Image or in the presence of a liquid polycarbonate of polyoxypro- pylenediol-?,.omega.-bis-allyl silylate having formula (II): Image wherein R is C1-C10 alkyl radical, X is a hydrolyzable radical selected from alkoxy, aminooxy and acyloxy radicals, Y is 0, 1 or 2, p is a number ranging from about 10 to about 100, m and n are numbers such as to give to compounds (I) and (II) a molecular weight value, or an average molecular weight value, of from 2000 to 20,000. In this organosiliconic fluid composition, the solid phase is constituted by the product of styrene polymerization or the product of copolymerization of styrene with the other vinylic or acrylic monomer. The liquid phase is constituted by compound (I) or (II) and by grafts of the monomers on compound (I) or (II).

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