Hardenable urethane-epoxy resin mixtures

US4435558A · kind A · utility

Assignee

• SCHERING CORPORATION · US

Inventors

• Christian Burba · Plön, DE
• Hermann-Josef Lucas · Plön, DE
• Bernd Neffgen · Cappenberg, DE

Key dates

• Filing date: Dec 15, 1982
• Grant date: Mar 6, 1984
• Expiry date: Dec 15, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L75/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The method of hardening a glycidyl compound with a polyether urethane urea amino hardener is disclosed, said hardener being prepared by reacting (1) a blocked prepolymer prepared by reacting a phenolic compound with the reaction product of a polyether polyol with an excess of polyisocyanate, with (2) a polyfunctional amino compound.