Cleavable surfactant

US11344493B2 · kind B2 · utility

Assignee

• FIRMENICH SA · CH

Inventors

• Eric Lee Lutz · Pessac, FR
• Nicolas Giuseppone · Strasbourg, FR
• Andreas Herrmann · Stuttgart, DE
• Vera TCHAKALOVA · Satigny, CH
• Daniel Benczedi · Geneva, CH

Key dates

• Filing date: Jan 22, 2018
• Grant date: May 31, 2022
• Expiry date: Jan 22, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/49
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Cleavable surfactants of formula (I) having a total hydrophilic-lipophilic balance (HLB) of between 3 and 18 and wherein A is a group capable of releasing a flavor or fragrance aldehyde of formula (R1)CHO or a flavor or fragrance ketone of formula (R1)(R2)CO and is of formula wherein the wavy line indicates the location of the bond between L and A; R1 and R2 represent a hydrogen atom or a saturated or unsaturated C1-C18 hydrocarbon group, provided that at least one of the R1 or R2 groups has 6 consecutive carbon atoms and that both R1 and R2 taken together comprise a maximum of 18 carbon atoms; and L is a linear, branched or cyclic, saturated or unsaturated C3 to C40 hydrocarbon group. These surfactants solubilize and/or stabilize flavor and fragrance aldehydes and ketones in an aqueous environment and at the same time to control their release by hydrolysis.