Polymeric gel system and compositions for treating keratin substrates containing same

A method of treating a keratin-based substrate comprising applying to said substrate a cosmetically acceptable medium comprising one or more components and an aqueous gel comprising water and,

• (a) from 0.1% to 5% by weight based on the water of a cationic polymer that contains at least 50% of repeat units resulting from the polymerization of one or more ethylenically unsaturated monomers that contain a cationic group;
• (b) from 0.05% to 0.5% by weight based on the water of an anionic surfactant having from 8 to 22 carbon atoms, wherein the amount of said anionic surfactant is less than the amount of said cationic polymer;
• (c) from 0.001% to 0.5% by weight based on the water of an amphoteric surfactant, wherein the amount of said amphoteric surfactant is less than the amount of said cationic polymer;
• and
• (d) up to 0.5% by weight based on the water of a long chain amine oxide, wherein the amount of said long chain amine oxide is less than the amount of said cationic polymer;
• wherein the components include:
• (e) one or more components selected from the group consisting of a fragrance, an oxidizing agent, and a hair dye;
• and
• (f) one or more optional components selected from the group consisting of a cationic surfactant, a conditioning agent, a synthetic amphoteric polymer, a synthetic ampholytic polymer, a synthetic non-ionic polymer, an amino acid, a protein, dyes, pigments, a cellulosic polymer, one or more vitamins, and mixtures thereof;
• wherein the conditioning agent is selected from the group consisting of water-soluble poly(meth)acrylates, water-soluble polyamides, water-soluble polyesters, water-soluble polyurethanes, water-soluble poly(vinyl amine), water-soluble poly(ethylene imine), water-soluble amine/epihalohydrin polyamines, water-soluble poly(meth)acrylamide, water-soluble (meth)acrylamide copolymers, water-soluble poly(meth)acrylic acid, water-soluble copolymers of (meth)acrylic acid, poly(diallyl dimethyl ammonium halides), copolymers of diallyl dimethyl ammonium halides, water-soluble vinyl pyrrolidone, water-soluble copolymers of vinyl pyrrolidone, poly(meth)acrylamidopropyltrimethyl ammonium halides, copolymers of (meth)acrylamidopropyltrimethyl ammonium halides, poly(meth)acryloyloxyethyltrimethyl ammonium halides, copolymers of (meth)acryloyloxyethyltrimethyl ammonium halides, poly(meth)acryloyloxyethyltrimethyl ammonium methyl sulfate, copolymers of (meth)acryloyloxyethyltrimethyl ammonium methyl sulfate and combinations thereof;
• and wherein the cellulosic polymer is selected from the group consisting of hydroxyethyl cellulose, hydroxypropyl cellulose, and combinations thereof.

A cosmetically acceptable medium comprising a component and an aqueous gel comprising water and, by weight based on the water,

• from 0.1% to 5% of poly(diallyl dimethyl ammonium chloride) (PDADMAC);
• from 0.05% to 0.5% of an anionic surfactant having from 8 to 22 carbon atoms and including sodium lauryl sulfate, wherein the amount of said anionic surfactant is less than the amount of said PDADMAC;
• from 0.001% to 0.5% of an amphoteric surfactant including cocamidopropylbetaine, wherein the amount of said amphoteric surfactant is less than the amount of said cationic polymer;
• and up to 0.5% of a long chain amine oxide including lauryl amine oxide, wherein the amount of said long chain amine oxide is less than the amount of said cationic polymer;
• wherein said component includes one or more components selected from the group consisting of a fragrance, an oxidizing agent, and a hair dye;
• and one or more optional components is selected from the group consisting of a cationic surfactant, a conditioning agent, a synthetic amphoteric polymer, a synthetic ampholytic polymer, a synthetic non-ionic polymer, an amino acid, a protein, dyes, pigments, one or more vitamins, and mixtures thereof;
• and
• wherein the conditioning agent is selected from the group consisting of water-soluble poly(meth)acrylates, water-soluble polyamides, water-soluble polyesters, water-soluble polyurethanes, water-soluble poly(vinyl amine), water-soluble poly(ethylene imine), water-soluble amine/epihalohydrin polyamines, water-soluble poly(meth)acrylamide, water-soluble (meth)acrylamide copolymers, water-soluble poly(meth)acrylic acid, water-soluble copolymers of (meth)acrylic acid, poly(diallyl dimethyl ammonium halides), copolymers of diallyl dimethyl ammonium halides, water-soluble vinyl pyrrolidone, water-soluble copolymers of vinyl pyrrolidone, poly(meth)acrylamidopropyltrimethyl ammonium halides, copolymers of (meth)acrylamidopropyltrimethyl ammonium halides, poly(meth)acryloyloxyethyltrimethyl ammonium halides, copolymers of (meth)acryloyloxyethyltrimethyl ammonium halides, poly(meth)acryloyloxyethyltrimethyl ammonium methyl sulfate, copolymers of (meth)acryloyloxyethyltrimethyl ammonium methyl sulfate and combinations thereof.