Silicone vitamin esters

Details Silicone vitamin esters Silicone vitamin esters

2006-11-07

2006-11-07

Barts, Samuel (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C556S440000, C556S437000

Reexamination Certificate

active

07132558

ABSTRACT:
The invention discloses novel series of silicone esters, which are useful as antioxidants on skin. The products are produced using for a variety of hydroxyl containing actives such as vitamin A (retinol), vitamin A-2, and vitamin E. Compounds of the invention are prepared by the esterification of (a) a specific silicone methyl ester and (c) a hydroxyl functional active. The esters of the present invention allow for the formulation of personal care products in which the “active” can be formulated into a variety of solvents without the loss of activity.

REFERENCES:
patent: 5210133 (1993-05-01), O'Lenick et al.

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