Cosmetic preparations comprising photostable UV-A filters

Details Cosmetic preparations comprising photostable UV-A filters Cosmetic preparations comprising photostable UV-A filters

1999-04-22

2000-05-30

Lambkin, Deborah C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

558405, 514438, 514520, C07D33322, C07D25500, A61K 3138, A61K 31275

Patent

active

060692588

ABSTRACT:
A cosmetic preparation which comprises a sunscreen agent for protecting the human epidermis against UV light in the range from 280 to 400 nm, which comprises, in a cosmetically suitable carrier, alone or together with compounds which absorb in the UV region and are known for cosmetic preparations, as photostable UV-A filters, effective amounts of compounds of the formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are hydrogen or aliphatic or cycloaliphatic radicals each having up to 18 carbon atoms, it being possible for any two of the radicals R.sup.1, R.sup.2 and R.sup.3 together to form a 5- or 6-membered ring, and R.sup.4 and R.sup.5 are an unsubstituted or substituted aromatic or heteroaromatic radical having 5 to 12 ring atoms, and R.sup.5 can additionally be hydrogen.

REFERENCES:
patent: 3280069 (1966-10-01), Knapp et al.
patent: 3694211 (1972-09-01), Sato et al.
patent: 4005095 (1977-01-01), Robba et al.
patent: 4382929 (1983-05-01), Bradshaw et al.
patent: 4387089 (1983-06-01), De Polo
patent: 5756535 (1998-05-01), Schwark et al.
patent: 5830441 (1998-11-01), Wang et al.
Popandova-Yambolieva et al, "Reaction of pivaloylacetonitrile with aromatic aldehydes", CA 119:180490, 1993.

Affiliated with

Also associated with

Rating

Cosmetic preparations comprising photostable UV-A filters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cosmetic preparations comprising photostable UV-A filters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmetic preparations comprising photostable UV-A filters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1911335