Compositions that harden in organopolissiloxanos mono elastu00c8meros translucent at room temperature in the presence of moisture and elastu00c8meros translucent

摘要

"Organopolissiloxanos compositions that harden in a mono elastu00c8meros translucent at room temperature in the presence of moisture and elastu00c8meros translucent.The present invention is compositions of organopolissiloxanos that may be obtained by performing successive steps set out below: step (1) in which we react: (I)A linear diorganopolissiloxano reagent that comprises a hydroxyl group at each end of the chain; (2I) and at least one organopolissiloxano hydroxylated resin B with a content by weight inHydroxyl group which ranges from 0.1 to 10%; (3I) with at least one polialcoxi silane (C; step (2),In which we introduced in the middle of the step 1: (6I) a mineral filler g based on amorphous silica and (7I) an effective quantity of a catalyst h consists of at least an organic derivative of titanium;Step 3, in which the base mixture obtained is subjected to an operation of desvolatilizau00e7u00e3o effected at a pressure lower than the atmospheric pressure.