METHOD FOR TREATING DAMAGED HAIR IN CONJUNCTION WITH THE RELAXING PROCESS
A method of treating one or more damaged hair shafts, each hair shaft including a cuticle layer and a cortex enclosed in the cuticle layer is disclosed. The method comprises: selecting one or more polymers that can penetrate the hair shafts with a pore size of about 5 angstroms to about 5000 angstroms; and treating the hair shafts by applying an effective amount of a composition containing said anionic polymers to said hair shafts.
1 . A method of treating one or more hair shafts which has or will have damage a hair relaxer treatment, each hair shaft including a cuticle layer and a cortex enclosed in the cuticle layer comprising: selecting one or more anionic polymers that can penetrate the hair shafts with a pore size of about 5 angstroms to about 5000 angstroms; and treating the hair shafts by applying an effective amount of a composition containing said anionic polymers to said hair shafts.
2 . The method of claim 1 wherein said anionic polymers have a weight average molecular weight of from about 300 daltons to about 80,000 daltons.
3 . The method of claim 1 wherein said anionic polymers contain one or more anionic monomers selected from the group consisting of anionic monomers include base addition salts of acrylic acid, methacrylic acid, itaconic acid, 2-acrylamido-2-methyl propane sulfonic acid, sulfopropyl acrylate or methacrylate or other water-soluble forms of these or other polymerizable carboxylic or sulfonic acids, sulphomethylated acrylamide, allyl sulphonate, sodium vinyl sulphonate, and the like. Preferred anionic monomers are acrylic acid and 2-acrylamido-2-methyl propane sulfonic acid.
4 . The method of claim 1 wherein said anionic polymers are selected from the groups consisting of homopolymers, copolymers, and terpolymers, and a combination thereof.
5 . The method of claim 1 wherein said anionic polymers are linear or chainlike fashion with few branches or bridges or crosslinks between the chains.
6 . The method of claim 1 wherein said composition containing the anionic polymers is applied to the hair prior to the application of a relaxing treatment.
7 . The method of claim 1 wherein said composition containing the anionic polymers is applied to the hair simultaneous to the application of a relaxing treatment.
8 . The method of claim 1 wherein said composition containing the anionic polymers is applied to the hair after the application of a relaxing treatment.
9 . The method of claim 1 wherein said anionic polymer has a low molecular weight.
10 . The method of claim 9 wherein said anionic polymer has a low molecular weight of about 300 daltons to about 10,000 daltons.
11 . The method of claim 9 wherein said anionic polymer has a low molecular weight of about 300 daltons to about 12,000 daltons.
12 . The method of claim 1 wherein said composition contains one or more cosmetically acceptable excipients.
13 . The method of claim 1 wherein said excipients are selected from the group consisting of water, saccharides, surface active agents, humectants, petroleum, mineral oil, fatty alcohols, fatty ester emollients, waxes and silicone-containing waxes, silicone oil, silicone fluid, silicone surfactants, volatile hydrocarbon oils, quaternary nitrogen compounds, amine functionalized silicones, conditioning polymers, rheology modifiers, antioxidants, sunscreen active agents, di-long chain amines from about C 10 to C 22 , long chain fatty amines from about C 10 to C 22 , fatty alcohols, ethoxylated fatty alcohols and di-tail phospholipids.
14 . The method of claim 1 wherein said polymer is Polyacrylic acid acrylamidomethyl propane sulfonate and/or its salt.
15 . The method of claim 1 wherein said pore size is from about 5 angstroms to about 5,000 angstroms.