High temperature adhesive silicone foam composition, foam generating system and method of generating foam

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:865190

Mead, Judith W ^[1]; Montoya, Orelio J ^[2]; Rand, Peter B ^[2]; Willan, Vernon O ^[2]

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1. Peralta, NM
2. Albuquerque, NM

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.

• Research Organization: AT&T
• DOE Contract Number: AC04-76DP00789
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4476159
• OSTI ID: 865190
• Country of Publication: United States
• Language: English

Related Subjects

temperature
adhesive
silicone
foam
composition
generating
method
access
space
impeded
generation
sticky
polymer
boiling
solvent
halogenated
hydrocarbon
preferred
aspect
formulation
polydimethylsiloxane
mixed
f502
freon
blowing
agent
pressurized
vessel
250
psi
whereby
resistant
deployed
deployable
wide
range
temperatures
adhering
wet
surfaces
dry
stable
periods
time
propagate
flame
lose
properties
externally
supported
burn
blowing agent
wide range
halogenated hydrocarbon
sticky foam
foam composition
externally supported
boiling solvent
/427/521/