Patent · US Active

Process for producing isocyanates

US9006480B2 · kind B2 · utility

0Cited by

11References

12Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Wolf Steiger · Geretsried, DE
Peter Bissinger · Dießen, DE

Key dates

Filing date	Apr 4, 2011
Grant date	Apr 14, 2015
Priority date	—
Expiry date	Apr 4, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C263/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates a process for producing isocyanates comprising the steps of a) providing an azolide and optionally a solvent, and b) adding an acid at a temperature below about 40 C. The invention also relates to the isocyanate obtainable by such a process.

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