Polyvalent metal salts of sulphonted derivatives of benzylidenec

Details Polyvalent metal salts of sulphonted derivatives of benzylidenec Polyvalent metal salts of sulphonted derivatives of benzylidenec

1989-11-22

1991-11-12

Chan, Nicky

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

Aromatic acid or derivative containing

562100, 556120, 556 54, 556 27, A61K 744, C07C30919, C07F 700, C07F 980

Patent

active

050646419

ABSTRACT:
Polyvalent metal salt of a sulphonated derivative of benzylidenecamphor having the general formula: ##STR1## in which M.sup.n+ denotes a polyvalent metal cation in which n is equal to 2, 3 or 4; and
One of the symbols X.sub.1 or X.sub.2 denotes a hydrogen atom, the other denoting one of the following radicals Y.sub.1 Y.sub.2 : ##STR2## where M.sup.n+ has the same meaning as above. Cosmetic composition screening out UV rays of wavelengths 280-380 nm, containing the compound of formula (I) as well as, optionally, other sunscreens.

REFERENCES:
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patent: 4304730 (1981-12-01), Bouillon et al.
patent: 4323549 (1982-04-01), Bouillon et al.
patent: 4327031 (1982-04-01), Bouillon et al.
patent: 4330488 (1982-05-01), Bouillon et al.
patent: 4421739 (1983-12-01), Bouillon et al.
patent: 4585597 (1986-04-01), Lang et al.
patent: 4654434 (1987-03-01), Lang et al.
patent: 4663088 (1987-05-01), Lang et al.
Liem et al., Intern. J. Cosmetic Science, 1, 341-361 (1979).

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