| 摘要 |
Cured polyorganosiloxane foams exhibiting a uniquely high resistance to burn-through and disintegration when exposed to flames contain at least 0.1% by weight each, based on the weight of said foam, of at least one finely divided nonmetallic fibrous heat resistant material, at least one finely divided nonmetallic cellular heat resistant material, and at least 5 ppm of platinum in elemental or chemically combined form. The total concentration of heat resistant materials should not exceed 40%, based on the weight of the foam. This invention also provides a method for preparing flame retardant polyorganosiloxane foams. |
