Anti-solar polymers and copolymers from vinyloxycarbonyl-methyl 4-N,N-dimethylamino benzoate and vinyloxycarbonyl-methyl-4-methoxy cinnamate monomeas, method of making the same and cosmetic compositions containing the same
AssigneeSociete Anonyme dite: L'Oreal
InventorsBernard Jacquet, Christos Papantoniou, Pierre Dufaure, Claude Mahieux
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Abstract
An anti-solar polymer has in the macromolecular chain thereof at least one unit of the formula ##EQU1## wherein F is a residue derived from an aromatic compound imparting to the polymer the ability to absorb wave lengths of light in the range of about 280-315 millimicrons. The polymer is employed in a cosmetic composition.
Claims13
Anti-solar polymer useful in cosmetic applications having in the macromolecular chain a unit of the formula ##EQU2## wherein R is ##SPC14##
- wherein R.sub.1 and R.sub.2 represent alkyl having 1-3 carbon atoms, said anti-solar polymer being selected from the group consisting of a homopolymer and a copolymer, said copolymer further containing a unit derived from an ethylenically unsaturated monomer and said unit having the structural formula given above being present in an amount between about 10-100 percent of the total weight of the polymer.
Anti-solar polymer which is a homopolymer having in the macromolecular chain thereof units of the formula ##SPC15##
- wherein R.sub.1 and R.sub.2 represent alkyl having 1-3 carbon atoms, said anti-solar polymer having an average molecular weight between about 2,000 - 1,000,000.
Anti-solar polymer having in the macromolecular chain from 10-100% by weight of units of the formula ##SPC16##
- wherein R.sub.1 and R.sub.2 represent alkyl having from 1-3 carbon atoms, the remainder comprising units derived from vinyl stearate.
The polymer of claim 4 which contains a unit having the structural formula given in claim 26 wherein R.sub.3 is hydrogen and a unit having the structural formula given in claim 26 wherein R.sub.3 is methoxy.
Dependencies are inferred from the claim text.