Cationic polyurethane compositions, quaternary ammonium salts and methods for their preparation

US6221954A · kind A · utility

Assignee

• Witco Corporation · US

Inventors

• Ibrahim S. Bechara · Carmel, US
• Thomas Baranowski · Würselen, DE

Key dates

• Filing date: Jun 5, 1995
• Grant date: Apr 24, 2001
• Expiry date: Jun 5, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L71/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The preparation and use of quarternized bis hydroxy alkyl amines by the reaction of a tertiary amine and an alkylene oxide in a strong acid system are disclosed. Cationic polyurethane compositions containing pendent hydroxy alkyl groups and methods for their preparation are also disclosed.