Delayed action gelling catalyst compositions and methods for making polyurethane polymers

US10081700B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Juan Jesus Burdeniuc · Macungie, US
• Stephan Hermann Wendel · Oldenburg, DE
• Christian Brandl · Garmisch-Partenkirchen, DE
• Torsten Panitzsch · Henstedt-Ulzburg, DE
• Renee Jo Keller · Orwigsburg, US

Key dates

• Filing date: Apr 8, 2016
• Grant date: Sep 25, 2018
• Expiry date: Apr 8, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2375/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Additives for making polyurethanes are disclosed. The additives are based on combining specific carboxylic acids or carboxylic di-acids together with a gelling catalysts obtained when mixing an isocyanate-reactive tertiary amine catalysts with dimethyl tin di carboxylate salts and/or dimethyltin mercaptide salts.