Thermally expandable sealants

Details Thermally expandable sealants Thermally expandable sealants

1979-08-27

1981-07-07

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

52232, 277227, 428268, 428273, 428278, 428290, 428306, 428436, 428442, 428443, 428522, 428524, 428920, 428921, 428323, 428329, 428367, 428408, B65D 5306, B32B 516

Patent

active

042775329

ABSTRACT:
A thermally-expandable sealant for joints, cavities or holes, which foams in the event of a fire and thereby effects a seal, comprising as a carrier a fleece or fabric made of glass or plastic, which is coated with a composition based upon expandable graphite and containing, per 100 parts by weight of expandable graphite, 10 to 30 parts by weight of polychlorobutadiene, 1 to 40 parts by weight of an alkylphenol/formaldehyde resin and 1 to 3 parts by weight of stabilizers known per se, and optionally, up to 30 parts by weight of inorganic fibers and up to 80 parts by weight of aluminium hydroxide. A process for sealing joints, cavities or holes using the sealant is also disclosed.

REFERENCES:
patent: 3404061 (1968-10-01), Shane
patent: 3627551 (1971-12-01), Olstowski
patent: 3770480 (1973-11-01), Farnam
patent: 3826074 (1974-07-01), Uffner
patent: 4072531 (1978-02-01), Funabiki
patent: 4108211 (1979-12-01), Olcott
patent: 4173681 (1979-11-01), Durrieu

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