Brief description of the silicas reinforcements by amidosiloxanes and silicone elastomer compositions containing these silicas

摘要

P the invention relates to the silica particulates treated. / p & & p & it relates to a silica having a specific surface area of at least 50mg, treated by a amidosiloxane of the formula: & br / (see appended drawing in bopi) & br / in which r is a methylene radical, ethyl or phenyl, r is a methylene radical, ethyl or 2 - (perfluoroalkyl) - ethyl, the perfluoroalkyl radical contains from 1 to 4atomes of carbon, inclusive, r is a methylene radical, or vinyl, r is a methylene or ethyl radical and x is an integer from 3 to 20, inclusive. / p & & p & use as a filler in the silicone elastomers. / p