Low-emission formaldehyde donor preparations

US8329063B2 · kind B2 · utility

Assignee

• Air Liquide Santé (International) · FR

Inventors

• Wolfgang Beilfuss · Hamburg, DE
• Ralf Gradtke · Tornesch, DE
• Klaus Weber · Hamburg, DE

Key dates

• Filing date: Mar 24, 2005
• Grant date: Dec 11, 2012
• Expiry date: Jul 29, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N35/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A method of use and a composition with reduced formaldehyde and amine emissions. The composition contains an N-formal, an emission reducing additive, and monoethylene glycol. The emission reducing additive may be urea, a urea derivative, an amino acid, guanidine, or a guanidine derivative.