Patent · US Active

Trimerization catalysts from sterically hindered salts and tertiary amines having isocyanate reactive groups

US10759892B2 · kind B2 · utility

0Cited by

3References

16Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Boxun Leng · Shanghai, CN
Juan Jesus Burdeniuc · Macungie, US
James Douglas Tobias · Center Valley, US
Robert Hoffman · Alburtis, US
Xiubing Hu · Shanghai, CN

Key dates

Filing date	Jun 18, 2015
Grant date	Sep 1, 2020
Priority date	—
Expiry date	Jan 15, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2207/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention provides trimerization catalyst compositions having a sterically hindered carboxylate salt used in combination with a tertiary amine catalysts having isocyanate reactive groups and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions.

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