Patent · US Active

Delayed action gelling catalyst compositions and methods for making polyurethane polymers

US10988566B2 · kind B2 · utility

0Cited by

18References

4Claims

0Family size

Assignee

Evonik Operations 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	Sep 19, 2018
Grant date	Apr 27, 2021
Priority date	—
Expiry date	Sep 19, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2375/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.