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:
Aug. 22, 1989
Filed:
Oct. 09, 1987
Applicant:
Inventors:
Kirtland P Clark, Bethal, CT (US);
Robert A Falk, New City, NY (US);
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A62D / ; A62C / ; A62C / ;
U.S. Cl.
CPC ...
252-3 ; 252-2 ; 252-805 ; 252307 ; 169 44 ; 169 46 ; 169 54 ; 536 31 ; 536 551 ; 536102 ;
Abstract
The instant invention relates to water-soluble anionic polysaccharides bound to perfluoroalkyl cationic surfactants. Polymer complexes are formed which are especially useful for fighting fires of hydrophilic or polar liquids. They have the unique property of forming an impervious gel when foamed with suitable surfactants and projected onto burning liquids. The gelatinous blanket is resistant to the fuel and protects the foam blanket from destruction. Consequently, superior fire-fighting agents can be prepared for fires which are otherwise very difficult to extinguish.