Patent · US Active

Catalysts and use thereof in the production of polyurethanes

US9416215B2 · kind B2 · utility

2Cited by

9References

6Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Jens Krause · Rahden, DE
Stephan Reiter · Langenfeld, DE
Stefan Lindner · Friesenheim, DE
Axel Schmidt · Munich, DE
Klaus Jurkschat · Dortmund, DE
Markus Schürmann · Recklinghausen, DE
Gerrit Bradtmöller · Dorsten, DE

Key dates

Filing date	Apr 18, 2009
Grant date	Aug 16, 2016
Priority date	—
Expiry date	Aug 12, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/52
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to new catalysts and production thereof as well as the preferred use thereof in the production of polyisocyanate polyaddition products. The described catalysts are tetravalent tin compounds with at least one ligand bonded via at least one oxygen atom or sulfur atom and containing at least one nitrogen atom.

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