| abstract |
A process for the preparation of organosiloxane elastomeric foam comprising the steps of mixing together (A) a polydiorganosiloxane containing at least two alkenyl groups bonded to silicon, (B) an organohydrogensiloxane, (C) a platinum catalyst, (D) a alpha, omega-diol of formula HOROH in which R represents an alkylene group containing 3 to 7 carbon atoms and (E) a resinous copolymer of R'3 SiO0 , 5 units and SiO2 units, R' being chosen from methyl groups and vinyl groups, then allowing the mixture to foam and harden. |