Patent · US Expired

Process for the preparation of dialky carbonates

US5599965A · kind A · utility

9Cited by

4References

11Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Zoltan Kricsfalussy · Leverkusen, DE
Helmut Waldmann · Leverkusen, DE
Hans-Joachim Traenckner · Leverkusen, DE

Key dates

Filing date	Jul 22, 1994
Grant date	Feb 4, 1997
Priority date	—
Expiry date	Jul 22, 2014

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C68/01
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

C.sub.1 -C.sub.4 -Dialkyl carbonates can be obtained from the corresponding C.sub.1 -C.sub.4 -alkanols, carbon monoxide and oxygen by reacting these substances in the presence of Cu salts, the water of reaction being limited to less than 10 wt % in the reaction mixture by at least partial withdrawal.

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