Schering Aktiengesellschaft

Bernd Neffgen

Christian Burba

Bernd Brinkmann

Hermann-Josef Lucas

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.

Hardenable urethane-epoxy resin mixtures

Elastic hardened epoxy resin polymers prepared by the reaction of a liquid polyepoxy resin with the amino-terminated hydrolysis products of enamine- or ketimine-terminated adducts formed by reacting a polyalkylene ether glycol with a polyisocyanate to form a polyether urethane and then reacting the polyether urethane with an enamine or ketimine having an hydroxy group.

Growing community of inventors

Munich, Georgia

Bernd Neffgen