Additives for water for fire protection

US7608208B2 · kind B2 · utility

Assignee

• Evonik Stockhausen GmbH · US

Inventors

• Jochen Houben · Kempen, DE
• Erich Kuster · Krefeld, DE
• Martin Tennie · Krefeld, DE

Key dates

• Filing date: Feb 8, 2002
• Grant date: Oct 27, 2009
• Expiry date: Jan 1, 2023

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A62D1/0042
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The current invention relates to water-swellable polymers at least partially comprised of sulfonic acid group containing monomers as additives for fire extinguishing water, which exhibits an elevated NaCl content, used in fire prevention and to combat fire.