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:
Sep. 21, 1982
Filed:
Sep. 29, 1981
Applicant:
Inventors:
Bernd Hoffmann, Frankfurt am Main, DE;
Siegfried Jung, Karben, DE;
Hans-Joachim Semmler, Hochheim am Main, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A62B / ;
U.S. Cl.
CPC ...
169 47 ; 106 1811 ; 106 1824 ; 252-3 ; 252-4 ; 252-65 ; 252-805 ;
Abstract
Film-forming fire extinguishing foam concentrates are described containing water, at least one hydrocarbon surfactant and at least one fluorosurfactant compatible with the latter one, which comprise a small amount of aliphatic carboxylic acids of the formula C.sub.n H.sub.2n+1 COOH, in which n is an integer of from 7 to 9, or the salts thereof.