Fire extinguishing foam concentrate and its application

US4350206A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Bernd Hoffmann · Frankfurt am Main, DE
• Siegfried Jung · Karben, DE
• Hans-Joachim Semmler · Hochheim, DE

Key dates

• Filing date: Sep 29, 1981
• Grant date: Sep 21, 1982
• Expiry date: Sep 29, 2001

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A62D1/0085
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

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.