Aqueous dispersions of functionalized silicones crosslinkable into elastomeric state

Claim 1

An aqueous dispersion of a silicone crosslinkable into elastomeric state by removal of water therefrom under ambient conditions, comprising: (A) 100 parts by weight of an oil-in-water emulsion which comprises a stabilizing amount of at least one anionic or nonionic surface-active agent or mixture thereof, at least one diorganopolysiloxane of the formula: ##STR5## in which a is 0 or 1; c is 0 or 1; a+c is 0 or 1; R 1 is an aliphatic, cyclic or aromatic, substituted or unsubstituted, C 1 -C 13 saturated or unsaturated monovalent hydrocarbon radical optionally containing an epoxy functional group or a primary, secondary or tertiary amine functional group; the radicals R 2 , which are identical or different, are each an aliphatic organic radical having from 1 to 8 carbon atoms or an aralkyl radical having from 7 to 13 carbon atoms; R 4 is an aliphatic, cycloaliphatic or aromatic, substituted or unsubstituted, C 1 -C 13 saturated or unsaturated monovalent hydrocarbon radical; the radicals R, which are identical or different, are each a monovalent hydrocarbon radical having from 1 to 10 carbon atoms, optionally substituted by halogen atoms or cyano groups; and n is a number such that the polymer of formula (1) has a viscosity of 25 to 1,000,000 mPa.s at 25° C.; (B) 5 to 250 parts by weight of an inorganic siliceous or nonsiliceous filler; (C) a catalytically effective amount of a metal curing catalyst; said dispersion having a solids content of at least 40%, and said at least one surfactant exerting no catalytic influence on at least one of the polymerization and polycondensation of said polydiorganosiloxane of formula (1).