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US 10,881,602 B2Granted
Composition and process for shaping or altering the shape of hair
AssigneeL'oreal
InventorsCamila Maciel Biato, Erika Alegrio Jarque Petali, Serge Restle, Liliane De Almeida Silvestre
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Abstract
Disclosed herein is a composition for shaping or altering the shape of hair, such as by straightening hair, wherein the composition contains a reducing agent, a neutralizing agent, a dimethicone copolyol, a cellulose compound, and water, wherein the pH of the composition ranges from about 2 to less than about 7. Also disclosed is a process for shaping or altering the shape of hair.
Claims19
A composition for straightening hair comprising:
- (a) from 1% to 15% by weight of at least one reducing agent selected from thiolactic acid, thioglycolic acid, cysteine, cysteamine, homocysteine, glutathione, thioglycerol, thiomalic acid, thiodiglycol, dithiothreitol, thioxanthine, thiosalicylic acid, thiopropionic acid, lipoic acid, N-acetylcysteine and salts thereof, alkali metal sulfites, alkaline-earth metal sulfites, and mixtures thereof;
- (b) from 0.1% to 6.3% by weight of at least one neutralizing agent;
- (c) from 0.5% to 5% by weigh of at least one dimethicone copolyol;
- (d) from 0.1% to 2% by weight of at least one cellulose compound chosen from hydroxyalkyl cellulose, alkylcellulose, and mixtures thereof;
- and
- (e) water;
- wherein the pH of the composition ranges from 2 to 5.5, the composition is free of pyridine and derivatives thereof, and all weights are based on the total weight of the composition.
4 more elements
A process for shaping hair or altering the shape of hair, the process comprising the steps of:
- a) applying onto hair, a composition comprising:
- (a) from 1% to 15% by weight of at least one reducing agent selected from thiolactic acid, thioglycolic acid, cysteine, cysteamine, homocysteine, glutathione, thioglycerol, thiomalic acid, thiodiglycol, dithiothreitol, thioxanthine, thiosalicylic acid, thiopropionic acid, lipoic acid, N-acetylcysteine and salts thereof, alkali metal sulfites, alkaline-earth metal sulfites, and mixtures thereof;
- (b) from 0.1% to 6.3% by weight of at least one neutralizing agent;
- (c) from 0.5% to 5% by weigh of at least one dimethicone copolyol;
- (d) from 0.1% to 2% by weight of at least one cellulose compound selected from hydroxyalkyl cellulose, alkylcellulose, and mixtures thereof;
- and
- (e) water;
- wherein the pH of the composition ranges from 2 to 5.5, the composition is free of pyridine and derivatives thereof, and all weights are based on the total weight of the composition;
- b) brushing the hair;
- c) heating the hair to a temperature of at least 40° C.;
- while optionally applying a smoothing action on the hair;
- and
- d) rinsing the hair with water or contacting the hair with an intermediate agent having a neutral pH and selected from a shampoo, a conditioner, or both a shampoo and a conditioner, followed by rinsing with water.
10 more elements
A method of making a composition for shaping or altering the shape of hair, the method comprising:
- a) combining:
- (a) from 1% to 15% by weight of at least one reducing agent selected from thiolactic acid, thioglycolic acid, cysteine, cysteamine, homocysteine, glutathione, thioglycerol, thiomalic acid, thiodiglycol, dithiothreitol, thioxanthine, thiosalicylic acid, thiopropionic acid, lipoic acid, N-acetylcysteine and salts thereof, alkali metal sulfites, alkaline-earth metal sulfites, and mixtures thereof;
- (b) from 0.1% to 6.3% by weight of at least one neutralizing agent selected from organic amines, alkali metal hydroxides, alkali earth metal hydroxides, and mixtures thereof;
- (c) from 0.5% to 5% by weigh of at least one dimethicone copolyol;
- (d) from 0.1% to 2% by weight of at least one cellulose compound selected from hydroxyalkyl cellulose, alkylcellulose, and mixtures thereof;
- and
- (e) water;
- wherein composition is free of pyridine and derivatives thereof;
- and all weights are based on the total weight of the composition;
- and
- b) mixing (a) to (e) in order to form a composition having a pH ranging from 2 to 5.5.
8 more elements
Dependencies are inferred from the claim text.