Patent · US Expired

Storage-stable polyisocyanates

US6538096B2 · kind B2 · utility

0Cited by

7References

13Claims

0Family size

Assignee

BASF SE

Inventors

Bernd Bruchmann · Ludwigshafen, DE
Gunter Mohrhardt · Speyer, DE
Hans Renz · Meckenheim, DE
Joachim Jähme · Frankenthal (Pfalz), DE

Key dates

Filing date	Jan 30, 2001
Grant date	Mar 25, 2003
Priority date	—
Expiry date	Mar 10, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31551
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Mixtures comprisea) polyisocyanates (polyisocyanates A), comprising structural units selected from the isocyanurate and biuret group, derived from aliphatic or cycloaliphatic diisocyanates (diisocyanates C),b) non-A polyisocyanates (polyisocyanates B), comprising structural units selected from the allophanate and urethane group, derived fromb1) aliphatic or cycloaliphatic diisocyanates (diisocyanates C) andb2) polyhydric aliphatic or cycloaliphatic alcohols (alcohols A),the molar ratio of the polyisocyanates A to the polyisocyanates B being from 200:1 to 5:1.

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