Zinc ketoiminate complexes as catalysts for the production of polyurethanes

US10787464B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Michael Fiedel · Essen, DE
• Thomas Günther · Hopewell Junction, US
• Martin Glos · Borken, DE
• Michael Ferenz · Essen, DE
• Christian Eilbracht · Herne, DE
• Wilfried Knott · Essen, DE
• Stephan Schulz · Bethesda, US
• Dennis Dittrich · Recklinghausen, DE

Key dates

• Filing date: Sep 14, 2018
• Grant date: Sep 29, 2020
• Expiry date: Sep 14, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/222
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The use of zinc ketoiminate complexes in the production of polyurethanes is described, wherein the zinc ketoiminate complexes are obtainable by reacting a zinc compound with certain ketimines.