Watery silicone oil dispersion hardening by water separation to a flame resistant elastomer

摘要

Aqueous dispersion of silicone crosslinking by elimination of water to a flame-resistant elastomer, comprising: - 100 parts of an emulsion (A) of the oil-in-water type of an alpha , omega -(dihydroxy)polydiorganosiloxane, stabilised by an anionic and/or nonionic surfactant, - 0.1 to 100 parts of a crosslinking agent, - 10 to 150 parts of borax hydrate, - optionally 5 to 100 parts of a nonsiliceous inorganic filler, - optionally 0.01 to 3 parts of a cure-catalysing metal compound. Use of the dispersions for the production of flame-resistant silicone elastomer seals, in particular for the building industry.