Ultraviolet radiation absorbing naphthalenylidene compositions

Details Ultraviolet radiation absorbing naphthalenylidene compositions Ultraviolet radiation absorbing naphthalenylidene compositions

1988-07-28

1989-12-26

Shippen, Michael L.

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

Organic compounds

Carboxylic acid esters

558392, 558394, 558400, 558405, 558406, 558408, 558410, 558426, 558428, 560 37, 560 42, 560 43, 560 44, 560 45, 560 48, 560 51, 560 53, 560 54, 560 56, 560 80, 560101, 562441, 562442, 562444, 562452, C07C 69608

Patent

active

048899470

ABSTRACT:
Sunscreen compositions are described which contain certain substituted naphthalenylidenes which act as UV filters when incorporated in a carrier in amounts ranging from 0.1-50% by weight.

REFERENCES:
patent: 2894936 (1959-07-01), Benson
patent: 3655720 (1972-04-01), Leflingwell et al.
patent: 4418087 (1983-11-01), Pittet et al.
patent: 4782084 (1988-11-01), Vyas

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