Patent · US Active

Preparation of polyisocyanates having isocyanurate groups and their use

US8742166B2 · kind B2 · utility

5Cited by

4References

9Claims

0Family size

Assignee

BASF SE

Inventors

Frederic Lucas · Offenburg, DE
Angelika Maria Steinbrecher · Stuttgart, DE
Philippe Desbois · Maikammer, DE

Key dates

Filing date	May 8, 2013
Grant date	Jun 3, 2014
Priority date	—
Expiry date	May 8, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/792
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a novel process for preparing polyisocyanates having isocyanurate groups by a partial trimerization of (cyclo)aliphatic diisocyanates in the presence of at least one trimerization catalyst from the group of ammonium salts of lactames and to the use of the thus obtainable polyisocyanates having isocyanurate groups as a polyisocyanate component in polyurethane coatings.

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