US-12622864-B2 - Aqueous conditioning cosmetic composition, cosmetic products, method of repair and protection of hair properties, and, use of a cosmetic product

US12622864B2US 12622864 B2US12622864 B2US 12622864B2US-12622864-B2

Abstract

The present invention relates to conditioning cosmetic compositions comprising, in a cosmetically acceptable aqueous medium, non-ionic surfactants and cationic polymers. In particular, these compositions are reserved for applications to hair with or without rinsing. In addition, the compositions concern methods of repair, protection, and improvement of hair properties. Additionally, the present invention relates to cosmetic products comprising such cosmetic compositions, such as shampoos, conditioners and hair treatment products, as well as the use thereof.

Inventors

Vicente Gomes OLIVEIRA
Jacqueline Moreira DE MORAIS
Camila de Fátima OLIVEIRA
Rafaela PEPINELI
Talison Alvarenga DOS SANTOS
André Oliva DE PALMA
Cristiane Aparecida Furtado CANTO

Assignees

OXITENO S.A. INDÚSTRIA E COMÉRCIO

Dates

Publication Date: 20260512
Application Date: 20210415
Priority Date: 20200629

Claims (12)

1 . An aqueous conditioning cosmetic composition for hair, characterized by comprising: at least one non-ionic surfactant comprising ethoxylated fatty alcohols having structure compatible with formula (I), wherein a and b, respectively, ranges from 6 to 24 carbon atoms and ranges from 20 to 100 units of ethylene oxide and at least one cationic polymer which belongs to the polyquaterniums class of structure compatible with the formulas (II) and (III) wherein n corresponds to the range of 725 to 4,600 repeating units, being n large enough for the aqueous solution of 2% of this polymer to have viscosity between 200 and 900 mPa·s and molar mass between 250 and 900 kDa; x and y correspond, respectively, to the ranges of 3,000 to 18,500 and of 750 to 5,000 repetition units, being x and y large enough so that the polymer has molar mass between 10,000 and 60,000 kDa, wherein the formula (II) consists of R 1 , R 2 e R 3 independently chosen between the groups —H and —(CH 2 CH 2 O) m Q, wherein m corresponds to the range of 1 to 5 units of ethylene oxide and Q is a cationic group of structure compatible with the Formula (IV), so that the charge density and nitrogen content are in the range of 0.8% to 2.2% wherein the at least one non-ionic surfactant and the at least one cationic polymer are combined with each other in a ratio between their totalities from 99:1 to 80:20 by weight, and wherein the composition is free of silicones, including aminated silicones.
2 . The aqueous conditioning cosmetic composition for hair according to claim 1 , characterized by comprising at least two non-ionic surfactants and at least two cationic polymers.
3 . The aqueous conditioning cosmetic composition for hair according to claim 1 , characterized in that at least one non-ionic surfactant is selected from the group consisting of condensation products of fatty alcohols or saturated, unsaturated or β-hydroxy-unsaturated primary or secondary fatty acids with ethylene oxide.
4 . The aqueous conditioning cosmetic composition for hair according to claim 1 , wherein a ranges from 8 to 18 carbon atoms.
5 . The aqueous conditioning cosmetic composition for hair according to claim 1 , wherein b ranges from 25 to 85 units of ethylene oxide.
6 . The aqueous conditioning cosmetic composition for hair according to claim 1 , characterized in that the at least one non-ionic surfactant and the at least one cationic polymer are combined with each other in a ratio between their totalities from 95:5 to 90:10 by weight.
7 . The aqueous conditioning cosmetic composition for hair according to claim 1 , characterized in that the at least one non-ionic surfactant and the at least one cationic polymer are solubilized in water, wherein they are together in the ratio of 50:50 to 20:80 by weight with respect to water.
8 . A cosmetic product, characterized by comprising the cosmetic composition as defined in claim 1 .
9 . The cosmetic product according to claim 8 , characterized by comprising from 0.2% to 10.0% by weight of the cosmetic composition.
10 . The cosmetic product according to claim 8 , characterized by comprising rinsible cosmetic products for hair care or non-rinsible cosmetic products for hair care.
11 . The cosmetic product according to claim 10 , characterized by the said rinsible cosmetic products for hair care are selected from the group consisting of shampoos, conditioners, masks or treatment products; and said non-rinsible cosmetic products for hair care are selected from the group consisting of creams for combing, treatment products, ampoules, serums, mists or finishing products.
12 . A method of repair and protection of hair, acting in the reduction of damage to the cuticles, increasing of luster, resistance to breakage, hydrophobicity, protein retention, combability, and hair manageability, characterized by comprising the step of applying to the hair cosmetic products as defined in claim 8 .

Description

FIELD OF THE INVENTION The present invention relates to conditioning cosmetic compositions comprising, in a cosmetically acceptable aqueous medium, non-ionic surfactants and cationic polymers. In particular, these compositions are reserved for applications to hair with or without rinsing. Additionally, the present invention relates to cosmetic products comprising such cosmetic compositions, such as shampoos, conditioners and treatment products. In addition, the present invention deals with method of protection and repair of hair properties. BACKGROUND OF THE INVENTION Damage to hair can be caused by different aggressive sources, such as oxidative and reductive chemical treatments of bleaching, dyeing, perming and straightening; thermal treatments by use of flat irons, curling irons, and blow dryers; exposure to ultraviolet radiation and environmental pollution; mechanical sources of friction and abrasion, among others. Typically, damage to the hair is manifested on the surface of the hair shafts, that is, in the cuticles; and with the loss of protein from its interior, that is, from the cortex, resulting in changes in macroscopic properties of hair's manageability (combability, tangling and stiffness), sensory attributes (softness and luster) and mechanical strength of the strands; as well as microscopic properties such as structural integrity and loss of the natural hydrophobicity of its surface. Consumers who have damaged hair are usually not satisfied with the conditioning effect of conventional hair products. Such products sometimes deliver excessive conditioning (build-up) without adding in volume, sometimes deliver an insufficient light conditioning to ensure the appropriate restoration on the properties mentioned above. This is due to less interaction with the hydrophilic surfaces of damaged hair, leading to the removal of the ingredients during washing. For the purpose of improving such properties of damaged hair, performance additives are added in cosmetic products. Traditionally, vegetable oils, emollient esters, amino acid derivatives, high molecular weight silicones, volatile silicones, cationic surfactants, cationic polymers, amphoteric polymers or anionic polymers are the groups of ingredients used for this purpose. The use of such groups of ingredients, as well as their combinations, is due to the predominant deposition and adhesion with the surface of the hair shafts, as well as the lubricity to the surface provided by them. The state of the art contains a myriad of cationic polymers, applied alone and/or in commercial mixtures available for hair conditioning. There are also mixtures of cationic polymers with ionic surfactants and other components for emollient and wetting action, such as esters, glycerin, oils (mineral and vegetable) and other components known to those skilled in the art for the purpose of conditioning the hair. However, although a variety of conditioning products is available on the market, there is a need to formulate products that obtain desirable effects not only related to restorative conditioning of hair due to the neutralization of negative hair charges, mechanism of action of cationic polymers, but also related to hair protection. In addition, many conditioning compositions in the literature restrict their application only to shampoos or conditioners, bringing complexity in the process of drawing up hair product lines. U.S. Pat. No. 9,511,008B2 describes a hair conditioning method applying a rinse-free cosmetic composition comprising at least one alkyl ether alkylamine or a quaternary alkyl ether alkylamine, an aryl silicone and a polyquaternary cationic polymer or quaternary silicone, selected from the group consisting of polyquaternium-6, polyquaternium-10, polyquaternium-11, silicone quaternium-18 and silicone quaternium-22. Such a composition says it causes a greater hydrophobicity of the hair and promotes ease in combing, elasticity and volume of the hair. The application US20120244100A1 describes an emollient agent and a process for improving the properties of damaged hair, comprising: (A) an ester compound of dipentaerythritol, and at least one fatty acid selected from the group consisting of fatty acids having 5 to 16 carbon atoms, and one or more substances selected from the group consisting of (B) an ester compound having a linear or branched alkyl or alkenyl group having 16 to 18 carbon atoms, and (C) an alcohol having a linear or branched alkyl or alkenyl group having 16 to 18 carbon atoms, and (D) a hydrocarbon having at least 20 carbon atoms. Said agent confers reduction of the feeling of roughness of damaged hair to provide a smooth feel, in addition to gloss retention, adhesiveness, durability of the cosmetic effect, storage stability and safety for the skin. U.S. Pat. No. 7,820,147B2 describes a method for repairing the strength of damaged or chemically treated hair through composition containing acrylic or methacrylic acid, a wetting agent and a th