High temperature adhesive silicone foam composition, foam generating system and method of generating foam. [For access denial]

Patent · Tue Dec 20 23:00:00 EST 1983

OSTI ID:6799536

Mead, J W; Montoya, O J; Rand, P B; Willan, V O

Access to a space is impeded by generation of a sticky foam from a silicone polymer and a low boiling solvent such as a halogenated hydrocarbon. In a preferred aspect, the formulation is polydimethylsiloxane gel mixed with F502 Freon as a solvent and blowing agent, and pressurized with CO/sub 2/ in a vessel to about 250 PSI, whereby when the vessel is opened, a sticky and solvent resistant foam is deployed. The foam is deployable, over a wide range of temperatures, adhering to wet surfaces as well as dry, is stable over long periods of time and does not propagate flame or lose adhesive properties during an externally supported burn.

• DOE Contract Number: AC04-76DP00789
• Assignee: Dept. of Energy
• Patent Number(s): None
• Application Number: ON: DE84014315
• OSTI ID: 6799536
• Country of Publication: United States
• Language: English

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