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US 11,958,859 B2Granted
Use of pyridoxal acetal salts as water-triggered pro-fragrances
AssigneeFlorida Gulf Coast University Board of Trustees
InventorGregory R. Boyce
Life of this patent
Estimating the term…
Abstract
A pro-fragrance delivery system based on a vitamin scaffold and a fragrant alcohol. The vitamin scaffold may be a vitamer of vitamin B6 or derivatives thereof. The pro-fragrance releases the fragrant alcohol by action of water at neutral pH.
Claims33
A compound of formula I:
- wherein:
- R1 is a C8-C20 hydrocarbyl group, and R2, R3, R4, R5, and R6 are independently hydrogen or a C1-C10 hydrocarbyl group;
- and
- X is a counterion,
- or the corresponding free base.
2 more elements
A compound of formula I:
- wherein:
- R1 is a C1-C20 hydrocarbyl group, and R2, R3, R4, R5, and R6 are independently hydrogen or a C1-C10 hydrocarbyl group;
- and
- X is a counterion,
- or the corresponding free base,
- wherein when R6 is methyl and R2, R3, R4, and R5 are each hydrogen, then R1 is not C1-C4 alkyl or n-hexyl.
3 more elements
A compound as shown below, wherein X is a counterion, or the corresponding free base:
Dependencies are inferred from the claim text.