Patent · US Active

Method for producing polyisocyanates

US8546606B2 · kind B2 · utility

3Cited by

6References

18Claims

0Family size

Assignee

BASF SE

Inventors

Andreas Brodhagen · Schifferstadt, DE
Martin Sohn · Mannheim, DE
Filip Nevejans · Sint-Niklaas, BE
Eckhard Stroefer · Mannheim, DE
Andreas Woelfert · Bad Rappenau, DE
Steffen Oehlenschlaeger · Ludwigshafen, DE

Key dates

Filing date	Feb 20, 2004
Grant date	Oct 1, 2013
Priority date	—
Expiry date	Apr 12, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/187
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a process for preparing polyisocyanates by reacting primary amines with phosgene, which comprises the steps

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