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Class Information
Number: 132/204
Name: Toilet > Methods > Hair treatment by application of specific chemical composition > For deformation, setting or holding (e.g., curling or waving) > Relaxing or reducing agent followed by fixing or neutralizing agent (e.g., "permanent")
Description: Process wherein a first composition is applied to break or weaken the disulfide bonds of the hair protein (keratin) and a second composition is subsequently applied to neutralize the first composition or cause the bonds to be reformed.










Sub-classes under this class:

Class Number Class Name Patents
132/205 Including specified treatment interval 55


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8671956 Method for permanent reshaping and in particular for straightening, comprising a stage of straightening keratinous fibres employing a composition comprising at least 40% by weight of non-silic Mar. 18, 2014
8413666 Enzymatic hair relaxing and straightening Apr. 9, 2013
7955593 Method and composition for reducing malodor in permanently waved hair Jun. 7, 2011
7874299 Methods of neutralizing relaxed hair and compositions for same Jan. 25, 2011
7771734 Process to color and permanently restructure hair Aug. 10, 2010
7488470 Process for the permanent deformation of keratinous substances employing an organic absorbing agent Feb. 10, 2009
6871652 Method for permanently shaping keratin fibers, and agents Mar. 29, 2005
6863883 Permanent wave agent composition having dyeing effect and method for dyeing hair using the same Mar. 8, 2005
6805136 Hair relaxer Oct. 19, 2004
6782895 Compositions comprising at least one hydroxide compound and at least one complexing agent, and methods for using the same Aug. 31, 2004
6506373 Agent and method for permanent waving Jan. 14, 2003
6471953 Permanent-waving process comprising the preliminary application of a composition comprising at least one anionic polymer Oct. 29, 2002
6399051 Method and agents for permanently styling hair, with a base consisting of N,N-disubstituted mercaptoacetamides Jun. 4, 2002
6303110 Reducing composition and process for the permanent reshaping of the hair Oct. 16, 2001
6302119 Low odor permanent waving compositions containing a disulfide Oct. 16, 2001
6240929 Heterocyclic quaternary polyammonium silicon polymers and their use in cosmetic compositions Jun. 5, 2001
6217855 Hair treatment composition Apr. 17, 2001
6125856 Hair repair, styling, and straightening process Oct. 3, 2000
6013249 Hair manageability and styling composition and method Jan. 11, 2000
6007585 Hair brightening system Dec. 28, 1999
5988180 Leave-on oxidizing solution for permanent waving of hair and a process for permanent waving of hair Nov. 23, 1999
5958393 Permanent-wave treatment method and a permanent-wave treatment auxiliary agent Sep. 28, 1999
5942009 Same-day waving and coloring of hair Aug. 24, 1999
5843420 Method for extracting malodorous compounds present in a formulation containing at least one compound carrying a thiol group and deodorized compositions thus obtained Dec. 1, 1998
5803095 Permanent wave compositions comprising substance P/CGRP antagonists Sep. 8, 1998
5775342 Hair waving method using acidic reducing solution containing alcohol amine sulfite Jul. 7, 1998
5776454 Permanent waving with mercaptosilicones Jul. 7, 1998
5728374 Hair manageability and styling composition and method Mar. 17, 1998
5715845 Process for the permanent reshaping of keratinous material Feb. 10, 1998
5679327 Hair straightening emulsion Oct. 21, 1997
5660190 Cosmetic compositions for bleaching the hair, preparation, process and use thereof Aug. 26, 1997
5655552 Process for the permanent reshaping of keratinous material Aug. 12, 1997
5641477 Reduction of hair damage during lanthionization with hair relaxers containing deswelling agents Jun. 24, 1997
5639451 Hair treatment compositions Jun. 17, 1997
5637297 Reducing agents for permanent waving of hair Jun. 10, 1997
5609168 Hair treatment composition and method of using same Mar. 11, 1997
5609859 Hair relaxer compositions and methods for preparing same Mar. 11, 1997
5601813 Cysteamine permanent wave composition and method Feb. 11, 1997
5570708 Process for the permanent reshaping of keratinous material Nov. 5, 1996
5562110 Hair straightening and permanent waving composition Oct. 8, 1996
5554362 Composition and process for the permanent shaping of hair Sep. 10, 1996
5551453 Process for the temporary reshaping of keratinous fibres Sep. 3, 1996
5533532 Permanent wave compositions and methods Jul. 9, 1996
5476650 Conditioning and straightening hair relaxer Dec. 19, 1995
5460809 Cysteamine permanent wave composition and method Oct. 24, 1995
5456907 Cysteamine permanent wave composition and method Oct. 10, 1995
5441729 Lotion for reduction of post permanent wave odors Aug. 15, 1995
5424062 Method for permanently shaping hair Jun. 13, 1995
5419895 Composition for treating human hair and method of use May. 30, 1995
5415856 Hair treatment compositions containing disaccharides May. 16, 1995

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