Patent · US Active

Method for producing sorbic anhydride and also use thereof as a preservative in foods

US9102613B2 · kind B2 · utility

0Cited by

5References

14Claims

0Family size

Assignee

LANXESS Deutschland GmbH · DE

Inventors

Ralf Krahwinkel · Langenfeld, DE
Robert Markert · Binghamton, US
Edwin Ritzer · Leverkusen, DE
Erasmus Vogl · Qingdao, CN

Key dates

Filing date	Oct 27, 2011
Grant date	Aug 11, 2015
Priority date	—
Expiry date	Nov 8, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B2200/09
WIPO fieldFood chemistry
WIPO sectorChemistry

Abstract

A method is described for the production of sorbic anhydride, in which alkali metal or alkaline earth metal salts of sorbic acid are reacted with phosgene in an inert organic solvent. In addition, use thereof as a preservative in foods, in particular drinks, is described.

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