Photostabilizing compounds, compositions, and methods
AssigneeELC Management LLC
InventorCraig Alan Bonda
Life of this patent
Estimating the term…
Abstract
Photostabilizing compounds are provided. In particular, the photostabilizing compounds may be heterocyclic or homocyclic. Topical compositions comprising these compounds are also provided. In particular, these topical compositions may further comprise photoactive compounds. Methods for stabilizing photoactive compounds are also provided. These methods comprise mixing the photoactive compounds with photostabilizing compounds.
Claims26
A photostabilizing compound having a structure according to the formula selected from the group consisting of:
- wherein each A is independently selected from the group consisting of CR1 and N;
- wherein R1 is selected from the group consisting of H, OH, a straight or branched chain alkyl group having from about 1 to about 20 carbon atoms, an alkoxy group having from about 1 to about 20 carbon atoms, an alkenyl group having from about 2 to about 20 carbon atoms, an alkynyl group having from about 2 to about 20 carbon atoms, and an aryl group having from about 6 to about 20 carbon atoms;
- wherein no more than four As are N;
- wherein each of B1 and B2 is independently selected from the group consisting of CN, C(═O)OR2, with the proviso that B1 and B2 are not both CN;
- wherein R2 is selected from the group consisting of H, an alkyl group having from about 1 to about 20 carbon atoms, an alkenyl group having from about 2 to about 20 carbon atoms, an alkynyl group having from about 2 to about 20 carbon atoms, and an aryl group having from about 6 to about 20 carbon atoms.
A composition comprising at least one photostabilizing compound having the structure according to the formula selected from the group consisting of:
- wherein each A is independently selected from the group consisting of CR1 and N;
- wherein R1 is selected from the group consisting of H, OH, a straight or branched chain alkyl group having from about 1 to about 20 carbon atoms, an alkoxy group having from about 1 to about 20 carbon atoms, an alkenyl group having from about 2 to about 20 carbon atoms, an alkynyl group having from about 2 to about 20 carbon atoms, and an aryl group having from about 6 to about 20 carbon atoms;
- wherein no more than four As are N;
- Wherein each of B1 and B2 is independently selected from the group consisting of CN, C(═O)OR2, with the proviso that B1 and B2 are not both CN;
- wherein R2 is selected from the group consisting of H, an alkyl group having from about 1 to about 20 carbon atoms, an alkenyl group having from about 2 to about 20 carbon atoms, an alkynyl group having from about 2 to about 20 carbon atoms, and an aryl group having from about 6 to about 20 carbon atoms.
Dependencies are inferred from the claim text.