High temperature adhesive silicone foam composition, foam generating system and method of generating foam. [For access denial]
Patent
·
OSTI ID:6799536
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
- Application Number:
- ON: DE84014315
- OSTI ID:
- 6799536
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
36 MATERIALS SCIENCE
ENTRY CONTROL SYSTEMS
FOAMS
USES
ADHESION
ADHESIVES
CARBON DIOXIDE
FREONS
PHYSICAL PROTECTION
PRODUCTION
SILICONES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
COLLOIDS
CONTROL SYSTEMS
DISPERSIONS
HALOGENATED ALIPHATIC HYDROCARBONS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC SILICON COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLYMERS
SILOXANES
055001* - Nuclear Fuels- Safeguards
Inspection
& Accountability- Technical Aspects
360401 - Polymers & Plastics- Preparation & Fabrication- (-1987)
36 MATERIALS SCIENCE
ENTRY CONTROL SYSTEMS
FOAMS
USES
ADHESION
ADHESIVES
CARBON DIOXIDE
FREONS
PHYSICAL PROTECTION
PRODUCTION
SILICONES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
COLLOIDS
CONTROL SYSTEMS
DISPERSIONS
HALOGENATED ALIPHATIC HYDROCARBONS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC SILICON COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLYMERS
SILOXANES
055001* - Nuclear Fuels- Safeguards
Inspection
& Accountability- Technical Aspects
360401 - Polymers & Plastics- Preparation & Fabrication- (-1987)