Process for the solvent-free production of solid plastic moldings sealing compounds and insulations using a polyisocyanate mixture containing 2,4'-diisocyanatodiphenylmethane

US4163095A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rolf Kubens · Odenthal, DE
• Fritz Ehrhard
• Herbert Gebauer · Krefeld, DE

Key dates

• Filing date: May 5, 1977
• Grant date: Jul 31, 1979
• Expiry date: May 5, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/7671
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The instant invention is directed to a process for the solvent-free production of solid polyurethane moldings wherein the polyisocyanate used is a polyisocyanate mixture containing from 10 to 80% by weight of 2,4'-diisocyanatodiphenylmethane.