Drug – bio-affecting and body treating compositions – Topical sun or radiation screening – or tanning preparations
Patent
1985-12-24
1990-12-18
Stone, Jacqueline
Drug, bio-affecting and body treating compositions
Topical sun or radiation screening, or tanning preparations
424 62, 424DIG13, 424 60, 514622, 564170, A61K 742, A61K 744
Patent
active
049785230
ABSTRACT:
A melanin inhibitor comprising as the reactive component a cinnamic acid derivative of the formula (I) or (II): ##STR1## in which R' represents an acyl group having 2 to 6 carbon atoms, R.sub.1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group or an alkenyl group, and R.sub.2 represents a hydrogen atom, an alkyl group having 1 to 24 carbon atoms, a cycloalkyl group or an alkenyl group.
The melanin inhibitors according to the invention are locally applied to affected portions such as of freckles and pigmentary deposits after sunburn without giving any stimulative or allergic troubles to the skin.
REFERENCES:
patent: 3256312 (1966-06-01), Strobel
Harry's Cosmeticology, p. 224, 7th ed., 1982.
Harry's Cosmeticology, pp. 232, 222-223.
Thoemel et al., Chem. Abstracts, vol. 96: 187112k, 1982.
Thoemel et al., Chem. Abstracts, vol. 97: 11641p.
DePolo et al., Chem. Abstracts, vol. 83: 120666g, 1975.
Thoemel et al., "Use of Etherified p-Hydroxycinnamic Acid . . . " in Chem. Abstracts, vol. 96: 187112k, 1982.
Thoemel et al., "Polyoxyalkylene Esters of Cinnamic Acid . . . " in Chem. Abstracts, vol. 97: 11641p, 1982.
De Polo et al., "Ultraviolet Light Absorber" cited in Chem. Abstracts, vol. 83: 120666g, 1975.
The Merck Index, 1976, p. 1834, Item 1832.
Hackh's Chemical Dictionary, 1969, pp. 146, 246, 288, 389, 486 and 603.
Imokawa Genji
Kawai Michio
Motegi Itsuro
Nakamura Koichi
Takaishi Naotake
Kao Corporation
Stone Jacqueline
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