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US 2012/0232154 A1Published application
Preservatives based on carboxylic anhydrides
AssigneeLANXESS Deutschland GmbH
InventorsJohannes KAULEN, Erasmus VOGL, Edwin RITZER, Manfred HOFFMANN
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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.
Claims4
A process comprising:
- adding to a beverage a carboxylic acid anhydride corresponding to formula (I)
- wherein
- R1 and R2 are phenyl.
A process comprising:
- adding to a beverage a carboxylic acid anhydride corresponding to formula (I)
- wherein
- R1 and R2 are pent-1,3-dienyl.
Dependencies are inferred from the claim text.