Method for producing a polymer which contains double bonds as an elastomer precursor

US11091589B1 · kind B1 · utility

Assignee

• Covestro Intellectual Property GmbH & Co. KG · DE

Inventors

• Muhammad Afzal Subhani · Aachen, DE
• Rene Boltersdorf · Güsten, DE
• Walter Leitner · Aachen, DE
• Thomas Mueller · Leonberg, DE
• Christoph Guertler · Cologne, DE
• Carsten Koopmans · Hilden, DE

Key dates

• Filing date: Aug 2, 2019
• Grant date: Aug 17, 2021
• Expiry date: Aug 2, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G64/42
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a method for producing an organooxysilyl-crosslinked polymer by reacting a polyether carbonate polyol which contains carbon-carbon double bonds with a polysiloxane compound in the presence of a suitable catalyst. Suitable polysiloxane compounds have at least two Si—H bonds. This invention also relates to organooxysilyl-crosslinked polymers which are formed by this process.