Process for the permanent deformation of hair
First Claim
1. Process for the permanent deformation of hair, comprising the steps ofapplying to the hair a freshly prepared aqueous composition obtained by mixture of two components(a) component 1 of which containing as a hair keratin reducing substance alkalisulfite, ammonium sulfite, thioglycolic acid, thiolactic acid or a water soluble salt of thioglycolic acid or thiolactic acid and(b) component 2 containing a compound selected from the group consisting of(i) carboxylic acids with activated double bonds of the formula ##STR5## in which the substituents RI and RII represent H, COOH, CH2 COOH, CH(CH3)COOH, C6 H5 or CH3, and RIII represents H, C1 -C6 -alkyl or CH2 COOH, with the proviso that RI is different from RII and at least one of the substituents RI and RII represents COOH, or the salt thereof, and(ii) carboxylic acids with activated triple bonds of the formula
in which the substituent RIV has the meaning H or COOH, or the salt thereof;
2.
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Accused Products
Abstract
Process for the permanent deformation of hair, wherein the hair deforming agent as used, is prepared immediately before use, by commingling of two components. One component contains a hair keratin-reducing compound, while the other component consists of a minimum of one organic compound with activated multiple carbon-carbon bond or contains such compound. In given instances, inorganic redox catalysts are additionally contained. The ready-to-use deforming agent may, furthermore, contain redox indicators to allow determination of the usability of the hair keratin-reducing compound.
By commingling the two components to a ready-to-use hair deforming agent, the keratin-reducing compound is gradually bonded by adduction to the unsaturated aliphatic compound and thus being rendered unusable for hair deformation. The concentration of the keratin-reducing compound can thus be reduced in the course of the period of application and be adapted to the gradually softening hair.
38 Citations
4 Claims
- 1. Process for the permanent deformation of hair, comprising the steps ofapplying to the hair a freshly prepared aqueous composition obtained by mixture of two components
(a) component 1 of which containing as a hair keratin reducing substance alkalisulfite, ammonium sulfite, thioglycolic acid, thiolactic acid or a water soluble salt of thioglycolic acid or thiolactic acid and (b) component 2 containing a compound selected from the group consisting of (i) carboxylic acids with activated double bonds of the formula ##STR5## in which the substituents RI and RII represent H, COOH, CH2 COOH, CH(CH3)COOH, C6 H5 or CH3, and RIII represents H, C1 -C6 -alkyl or CH2 COOH, with the proviso that RI is different from RII and at least one of the substituents RI and RII represents COOH, or the salt thereof, and (ii) carboxylic acids with activated triple bonds of the formula - space="preserve" listing-type="equation">HOOC--C.tbd.C--R.sup.IV
in which the substituent RIV has the meaning H or COOH, or the salt thereof; 2. - View Dependent Claims (3, 4)
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2. holding the hair at a temperature of 20°
- to 80°
C. for a time period of 10 to 50 minutes in the desired shape;3. fixing the hair in the desired shape by application of an aqueous
- to 80°
Specification
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- Resources
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Current AssigneeWella Aktiengesellschaft
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Original AssigneeWella Aktiengesellschaft
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InventorsWajaroff, Theodor, Lang, Gunther
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Primary Examiner(s)Heinz, A. J.
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Application NumberUS06/504,841Time in Patent Office781 DaysField of Search132/7, 424/70-72US Class Current132/204CPC Class CodesA61K 2800/95 Involves in-situ formation ...A61K 8/362 Polycarboxylic acidsA61K 8/46 containing sulfur A61K8/44 ...A61K 8/8147 Homopolymers or copolymers ...A61Q 5/04 Preparations for permanent ...
