Patent · US Expired

Manufacture of organic isocyanates

US3960916A · kind A · utility

4Cited by

2References

8Claims

0Family size

Assignee

BASF SE

Inventors

Werner Fuchs · Herrsching am Ammersee, DE
Rolf Platz
Volker Vogt

Key dates

Filing date	Jan 24, 1975
Grant date	Jun 1, 1976
Priority date	—
Expiry date	Jan 24, 1995

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C263/10
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Organic isocyanates are manufactured, in the absence of organic solvents, by reaction of primary organic amines with hydrogen chloride, to give amine hydrochlorides, subsequent phosgenation, and thermal decomposition of the carbamyl chlorides formed as intermediates.

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