Patent · US Active

Preservatives based on carboxylic anhydrides

US8440719B2 · kind B2 · utility

1Cited by

2References

1Claims

0Family size

Assignee

LANXESS Deutschland GmbH · DE

Inventors

Johannes Kaulen · Odenthal, DE
Erasmus Vogl · Qingdao, CN
Edwin Ritzer · Leverkusen, DE
Manfred Hoffmann · Würzburg, DE

Key dates

Filing date	May 25, 2012
Grant date	May 14, 2013
Priority date	—
Expiry date	May 25, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/524
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Carboxylic anhydrides are highly suitable as additive for industrial materials, cosmetics, pharmaceutics and foodstuffs, in particular beverages, for protecting them against attack and/or destruction by microorganisms.

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