Ultraviolet light-absorbing compounds and sunscreen formulations

Details Ultraviolet light-absorbing compounds and sunscreen formulations Ultraviolet light-absorbing compounds and sunscreen formulations

1992-10-30

1994-04-12

Brust, Joseph Paul

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

Organic compounds

Nitriles

548473, 548476, 548477, 548545, 548546, 558402, C07C25534

Patent

active

053027400

ABSTRACT:
Disclosed are certain poly-methine compounds having the formula ##STR1## wherein each R.sup.1 is independently selected from cyano; carboxy; alkenyloxycarbonyl; an unsubstituted or substituted alkoxycarbonyl, cycloalkoxycarbonyl or aryloxycarbonyl radical; an unsubstituted or substituted, carbocyclic or heterocyclic aryl radical; an unsubstituted or substituted alkanoyl, cycloalkanoyl or aroyl radical; an unsubstituted or substituted carbamoyl radical; or an unsubstituted or substituted alkylsulfonyl, cycloalkylsulfonyl or arylsulfonyl radical; each R.sup.2 is independently selected from cyano or an unsubstituted or substituted alkoxycarbonyl, cycloalkoxycarbonyl or aryloxycarbonyl radical; each A is independently selected from an unsubstituted or substituted 1,2-phenylene or 1,2-naphthylene radical; each Z is independently selected from --O-- or --S--; and L is an organic linking group bonded by non-oxo carbon atoms to each Z atom. Also disclosed are sunscreen formulations and polymeric compositions containing at least one of the poly-methine compounds or the reactive residue thereof.

REFERENCES:
patent: 3706700 (1972-12-01), Kirchmayr et al.
patent: 4041063 (1977-08-01), Buck
patent: 4617374 (1986-10-01), Pruett et al.
patent: 4707537 (1987-11-01), Pruett et al.
patent: 4749773 (1988-06-01), Weaver et al.
patent: 4749774 (1988-06-01), Weaver et al.
patent: 5057594 (1991-10-01), Krutak et al.

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