Patent · US Expired

Process for preparing (cyclo)aliphatic isocyanates

US6838578B2 · kind B2 · utility

14Cited by

5References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Hans-Joachim Leimkühler · Leverkusen, DE
Herbert Stutz · Karlsruhe, DE
Wolfgang Leuckel · Bad Dürkheim, DE

Key dates

Filing date	Jul 3, 2002
Grant date	Jan 4, 2005
Priority date	—
Expiry date	Apr 2, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J19/26
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for preparing (cyclo)aliphatic diisocyanates and triisocyanates corresponding to the formulaR—(NCO)n (I),wherein

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