Patent · US Active

Method for producing urethanes composed of mono and di-functional aromatic amines

US8921598B2 · kind B2 · utility

1Cited by

6References

20Claims

0Family size

Assignee

BASF SE

Inventors

Andreas Leitner · New Castle, US
Robert Baumann · Mannheim, DE
Wolfgang Siegel · Schifferstadt, DE

Key dates

Filing date	Mar 18, 2009
Grant date	Dec 30, 2014
Priority date	—
Expiry date	Jun 15, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C271/28
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The object of the invention is to provide a process for preparing urethanes by reacting aromatic amines with a dialkyl carbonate, wherein the alkyl radical of the organic dialkyl carbonate comprises from 2 to 18 carbon atoms, and the reaction is carried out in the presence of a base.

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