Method for producing a multiple bond-containing prepolymer as elastomer precursor

US11098153B2 · kind B2 · utility

Assignee

• Covestro Deutschland AG · DE

Inventors

• Muhammad Afzal Subhani · Aachen, DE
• Burkhard Koehler · Warburg, DE
• Walter Leitner · Aachen, DE
• Thomas Ernst Müller · Aachen, DE
• Christoph Gürtler · Cologne, DE

Key dates

• Filing date: Oct 10, 2017
• Grant date: Aug 24, 2021
• Expiry date: Jan 6, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J3/24
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a method for producing a prepolymer that contains carbon-carbon multiple bonds, a polyol component A) being reacted with component B) that contains isocyanate groups and the polyol component comprising a polyether carbonate polyol that contains carbon-carbon multiple bonds.