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US 6,782,895 B2Granted
Compositions comprising at least one hydroxide compound and at least one complexing agent, and methods for using the same
AssigneeL'oreal
InventorsNghi Van Nguyen, David W. Cannell
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Abstract
A composition comprising at least one hydroxide compound and at least one complexing agent effective for dissociating the at least one hydroxide compound in sufficient quantity to effect lanthionization of keratin fibers. The at least one complexing agent is chosen from compounds comprising at least one group of formula (I) and salts thereof. Also disclosed is a method for lanthionizing keratin fibers to achieve relaxation of the keratinous fibers and a multicompartment kit comprising an activating composition and at least one hydroxide compound.
Claims36
A method for lanthionizing keratin fibers comprising
- (a) generating hydroxide ions in a composition, said step of generating comprising combining:
- (i) at least one hydroxide composition comprising at least one hydroxide compound;
- and
- (ii) at least one activating composition comprising at least one complexing agent effective for dissociating said at least one hydroxide compound in sufficient quantity to effect lanthionization of said keratin fibers;
- (b) applying said composition comprising said generated hydroxide ions to keratin fibers for a sufficient period of time to lanthionize said keratin fibers;
- and
- (c) terminating said lanthionization,
- wherein said at least one complexing agent comprises at least one group chosen from groups of formula (I) and salts thereof:
- wherein:
- R1 is chosen from a carbonyl group and a thiocarbonyl group;
- R2 is chosen from CR groups wherein R is chosen from a direct bond to a neighboring atom, H, optionally substituted linear hydrocarbon groups, optionally substituted branched hydrocarbon groups, optionally substituted cyclic hydrocarbon groups, optionally substituted amino groups, optionally substituted thio groups, optionally substituted hydroxy groups, and halogen atoms;
- X1 is chosen from hydroxyl groups and thiol groups;
- and
- X2 is chosen from hydroxyl groups, amino groups, and thiol groups, provided that said at least one complexing agent is not chosen from α-thio carboxylic acids.
11 more elements
A composition comprising:
- (a) at least one hydroxide compound;
- and
- (b) at least one complexing agent effective for dissociating said at least one hydroxide compound in sufficient quantity to effect lanthionization of keratin fibers,
- wherein said at least one complexing agent comprises at least one group chosen from groups of formula (I) and salts thereof:
- wherein:
- R1 is chosen from a carbonyl group and a thiocarbonyl group;
- R2 is chosen from CR groups wherein R is chosen from a direct bond to a neighboring atom, H, optionally substituted linear hydrocarbon groups, optionally substituted branched hydrocarbon groups, optionally substituted cyclic hydrocarbon groups, optionally substituted amino groups, optionally substituted thio groups, optionally substituted hydroxy groups, and halogen atoms;
- X1 is chosen from hydroxyl groups and thiol groups;
- and
- X2 is chosen from hydroxyl groups, amino groups and thiol groups, provided that said at least one complexing agent is not chosen from α-thio carboxylic acids.
7 more elements
A multicompartment kit comprising at least two compartments
- wherein a first compartment comprises a first composition for generating hydroxide ions comprising at least one hydroxide compound;
- and
- wherein a second compartment comprises an activating composition comprising at least one complexing agent effective for dissociating said at least one hydroxide compound in sufficient quantity to effect lanthionization of keratin fibers, wherein said at least one complexing agent comprises at least one group chosen from groups of formula (I) and salts thereof:
- wherein:
- R1 is chosen from a carbonyl group and a thiocarbonyl group;
- R2 is chosen from CR groups wherein R is chosen from a direct bond to a neighboring atom, H, optionally substituted linear hydrocarbon groups, optionally substituted branched hydrocarbon groups, optionally substituted cyclic hydrocarbon groups, optionally substituted amino groups, optionally substituted thio groups, optionally substituted hydroxy groups, and halogen atoms;
- X1 is chosen from hydroxyl groups and thiol groups;
- and
- X2 is chosen from hydroxyl groups, amino groups, and thiol groups. provided that said at least one complexing agent is not chosen from α-thio carboxylic acids.
6 more elements
Dependencies are inferred from the claim text.