Low resilience, low frequency molded polyurethane foam

US6051622A · kind A · utility

Assignee

• Arco Chemical Technology, L.P. · US

Inventors

• Mark Kinkelaar · Cross Lanes, US
• Andrew Thompson · West Chester, US
• Daniel P. Krisher · South Charleston, US

Key dates

• Filing date: Sep 17, 1998
• Grant date: Apr 18, 2000
• Expiry date: Sep 17, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2110/0083
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Molded polyurethane seating foams exhibiting low resonant frequencies and low ball rebound are produced by reacting an isocyanate-terminated prepolymer prepared from a polyol component comprising in major part one or more low intrinsic unsaturation substantially polyoxypropylene polyols and/or polymer polyols with a blowing/chain extending stream comprising water and optionally amines and alkanolamines.