| 摘要 |
There is disclosed a compositon forming an elastic foam at normal temperature essentially comprising (A) polydiorganosiloxane end-blocked by silanol group and a viscosity within the range between 500 and 200,000 cSt at 25 DEG C., (B) an aminoxy group-containing organosilicon compound having more than two silicon-bonded organoaminoxy groups on the average in one molecule, (C) a silicon-hydrogen bond containing polyorganosiloxane having more than two silicon-hydrogen bonds on the average in one molecule, with the proportion of said silicon-hydrogen bonds being 10% or more of the number of silicon atoms, (D) fumed silica, (E) an isocyanato group-containing organic compound, and optionally (F) a polyhydric alcohol having two or more alcoholic hydroxyl groups bonded to primary carbon atoms and/or two or more alcoholic hydroxyl groups bonded to secondary carbon atoms in one molecule.
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