Process for the production of polyurethane plastics in which polyisocyanates are reacted with reactive organic fillers comprising biomasses

US4320208A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Artur Reischl · Leverkusen, DE
• Kuno Wagner · Leverkusen, DE

Key dates

• Filing date: May 5, 1980
• Grant date: Mar 16, 1982
• Expiry date: May 5, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/64
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to a process for the production of optionally foamed polyurethane plastics, particularly shaped articles, using certain denatured biomasses as reactive fillers. The fillers in question comprise biomasses based on microorganisms and the derivatives and decomposition products of microorganisms, particularly biologically purified sludges, which have been deodorized and irreversibly denatured by reaction with isocyanates and/or carbonyl compounds and compounds capable of aminoplast and/or phenoplast formation.