| 摘要 |
Polydiorganosiloxane gum base stocks which contain per 100 parts by weight of the stock, 15 to 60 parts by weight of an organosiloxane having an average of at least 2 silicon-bonded hydroxyl radicals per molecule, 3 to 25 parts by weight of an organosiloxane having an average of at least 2.5 silicon-bonded hydrogen atoms per molecule, 0.05 to 0.5 parts by weight acetylenic alcohol inhibitor and 1 to 200 p.p.m. platinum as a platinum catalyst, can be sponged by heating the composition above 125.degree.C. The sponged products are elastomeric, have flame retardant properties and can be used where applications see relatively high temperatures. |
