Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Radical -xh acid – or anhydride – acid halide or salt thereof...
Reexamination Certificate
2009-12-29
2011-11-08
Zucker, Paul A (Department: 1621)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Radical -xh acid, or anhydride, acid halide or salt thereof...
C562S565000
Reexamination Certificate
active
08053474
ABSTRACT:
The present invention discloses compounds with a carboxyl acid group and an amide group which also containing the tertiary amino groups. The carboxyl acid group having a partial negative charge can attract the tertiary amino group with each other to form a quaternary ammonium salt structure, so that the compounds are easy to dissolve in water. Moreover, these compounds having a mushroom tyrosinase-inhibition effect and have the potential to use in the cosmetics for skin whitening.
REFERENCES:
patent: 2653898 (1953-09-01), Castillo et al.
Chen Chen-Yin
Chiu Ming-Yi
Hsu Nai-Hsuan
Ling Yi-Fan
Tsai Wei-Chuan
Corum Inc.
King Justin
WPAT, PC
Zucker Paul A
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