Process for the manufacture of low density, flexible polyurethane foams

US4883825A · kind A · utility

Assignee

• Union Carbide Chemicals & Plastics · US

Inventors

• Paul M. Westfall · St. Albans, US
• Frank E. Critchfield · South Charleston, US
• William A. Gill · Harvard, US

Key dates

• Filing date: Dec 30, 1987
• Grant date: Nov 28, 1989
• Expiry date: Dec 30, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2375/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the manufacture of low density flexible polymethane foam via a catalyzed reaction of a highly reactive, high ethylene oxide, high functionality polyol, a hydrophilic polyhydric compound, water and polyisocyanates.