Encapsulated flavor and fragrance

Details Encapsulated flavor and fragrance Encapsulated flavor and fragrance

2005-01-18

2005-01-18

Hardee, John (Department: 1751)

Cleaning compositions for solid surfaces, auxiliary compositions

With oxygen, halogen, sulfur, or nitrogen containing or...

C510S501000, C512S004000

Reexamination Certificate

active

06844302

ABSTRACT:
The present invention provides solid complexes of urea and flavor and fragrance chemicals as well as methods of providing the complexes. The complexes are advantageously incorporated in powdered detergent and bleach products. The urea complexes protect the flavor or fragrance molecules from chemical reaction with other elements of the products. When added to water the urea complex is quickly removed from the flavor or fragrance molecule thereby delivering the material at the desired time.

REFERENCES:
patent: 3627325 (1971-12-01), Breslow
patent: 4493869 (1985-01-01), Sweeny et al.
patent: 4528226 (1985-07-01), Sweeny
patent: 4769390 (1988-09-01), Roelz et al.
patent: 5211959 (1993-05-01), Yoshii et al.
patent: 5709871 (1998-01-01), Hill
patent: 5755320 (1998-05-01), Weder
G. E. Barker et al., Journal of the American Oil Chemists′ Society, 1955, vol. 32(5) 249-252. filed May, 1955.

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