The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1981
Filed:
Aug. 27, 1979
Applicant:
Inventors:
Assignee:
Chemie Linz Aktiengesellschaft, Linz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; B32B / ;
U.S. Cl.
CPC ...
428244 ; 52232 ; 277227 ; 428268 ; 428273 ; 428278 ; 428290 ; 428306 ; 428436 ; 428442 ; 428443 ; 428522 ; 428524 ; 428920 ; 428921 ; 428323 ; 428329 ; 428367 ; 428408 ;
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.