Process for the CFC-free production of cellular polyurethane molded parts

US5464880A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans Weber · Glückstadt, DE
• Peter Haas · Brisbane, AU
• Erhard Michels · Neunburg vorm Wald, DE
• Christian Weber · Elgin, US
• Klaus Brecht · Burscheid, DE

Key dates

• Filing date: Oct 31, 1994
• Grant date: Nov 7, 1995
• Expiry date: Oct 31, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2375/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the CFC-free production of cellular polyurethane molded parts/articles with solid surfaces by reacting a reaction mixture of per se known starting materials in sealed molds, to yield polyurethane foams. Carbamates obtainable from aliphatic aminoalcohols and carbon dioxide are used as blowing agents, optionally in conjunction with other blowing agents. The process is suitable for producing foam coverings on steering wheels, spoilers and protective upholstery in car interiors, and for producing soles of shoes or shoe components.