PL165265B1 - Long-lasting hair conditioning shampoo PL PL PL - Google Patents

Abstract

1. A permanent hair conditioning shampoo, in the form of an emulsion or suspension, comprising a synthetic organic detergent and a water-insoluble hair conditioning agent, optionally auxiliary substances, in an aqueous medium, characterized in that it comprises 1 to 35% by weight of the synthetic organic detergent, 0.3-10% by weight of the water-insoluble hair conditioning agent, a saturated primary long-chain alcohol having an average of 28-42 C atoms in the chain, or an alkoxylated derivative thereof as a stabilizer, in an amount sufficient to stabilize the emulsion or suspension, and an aqueous medium in an amount of 60-90%, wherein the ratio of the long-chain alcohol or its derivative to the conditioning agent is in the range from 0.2:1 to 5:1. PL PL PL

Description

The present invention relates to a permanent hair conditioning shampoo which is suitable for washing the hair while conditioning it, making the hair easier to style (easy to comb and relatively low electrostatic charge) than after using a conventional shampoo.

Hair conditioning shampoos are well known cosmetic products. They have been described in many descriptions and patent applications. Cationic surfactants such as quaternary ammonium salts as well as various silicones and other water-insoluble conditioning agents such as waxes, fats and oils have been used as conditioning agents in hair rinses and shampoos. Shampoos are made in solid form, in the form of a gel and cream, and in liquid form as solutions, emulsions, suspensions or dispersions. Shampoos in the form of emulsions and suspensions (or dispersions) sometimes tend to separate on storage. Such separation should be avoided in products intended for commercial use.

Conditioning shampoos are known from the following US Patents: No. 3,969 500.4 470 982.4 701 322.4 704 272.4 707 293.4 726 94-4.4 728

457.4 803 237.4 824 602.4 850 732.4 885 130 and 4 859 500.

There is also a brochure from Petrolite Corporation titled Unilin Alcohols 1985 under identification number SP-1040.

Although pearlescent shampoos are known, and it is also known to incorporate various conditioning agents into shampoos, it is also known to use long chain alcohols in shampoos (see British Patent Specification No. 2,177,108, European Patent Specification No. EPO 130, 609). however, there are no data or indications in the known publications which could lead to the predictability of the present invention or which would give rise to any expectation of benefits derived therefrom.

The hair conditioning shampoo according to the invention which is in the form of an emulsion or a suspension contains 1 to 35 wt. % synthetic organic detergent, 0.3-10 wt. a water-insoluble hair conditioning agent, a saturated long chain primary alcohol with an average of 28-42 C atoms in the chain or an alkoxylated derivative thereof sufficient to stabilize an emulsion or suspension and an aqueous medium of 60-90%, with a long chain ratio of the alcohol or derivative thereof to the conditioning agent ranges from 0.2: 1 to 5: 1.

The presence of a long chain alcohol or derivative thereof stabilizes the emulsion or suspension. In some cases, the stabilization achieved with a long-chain saturated primary alcohol (for simplicity, the term or its derivative will often be omitted hereinafter) may not be necessary, but other advantages, such as the effect of pearl iridescence and improved conditioning. Water-soluble synthetic organic detergents, preferably anionic detergents, and especially higher alkyl sulfates and / or higher alkyl ethoxylates, are also present in the conditioning shampoo.

As water-insoluble hair conditioners, there may be mentioned: organosilicon compounds, e.g., non-volatile silicones (especially amino silicones), inter alia dimethicones; polyethylenes; paraffin; petroleum jelly; microcrystalline waxes; mixed Cie-36 fatty acids and corresponding triglycerides; stearyl stearate and quaternary ammonium and amine salts (which are classified herein as conditioning agents rather than surfactants, although they have both effects). Organosilicon compounds and silicones that can be used include all compounds used as hair conditioning agents, many of which have been described in the patents referenced above. However, it has been found that in the shampoo of the invention, aminosilicones are typically more effective than the conventional silicones, and of the aminosilicones described below, the compounds described below are most preferred. Thus, most preferably, the shampoo of the invention contains at least one aminosilicone of the formula shown in the drawing, in which R 1 R ^2, R ^3, R, R ⁶ and R ⁷ are alkyl groups having 1-6 carbon atoms, preferably 1 carbon atom in each of the one R ⁴ is a group of formula -R 8 NH-CH2CH2-NH2, in which R ⁸ is an alkylene group having 3-6 carbon atoms, and preferably is an isobutyl group, x is an average number in the range

165 265

100-10000 and y is an average number in the range 1-10, preferably less than 5 and especially 1, corresponding to an amine equivalent in the range 4000-60000. Preferably x is in the range from 200 or 300 to 10,000, more preferably from 500 to 10,000 and especially from 750 to 800 or 850, e.g. about 800, and y is in the range from 0 to 8, preferably less than 3, especially y is 1 The amine equivalent of such an aminosilicon is preferably in the range from 5,000 to 50,000, especially from 10,000 to 40,000. For certain specific preferred aminosilicones used in the experiments described herein, the mole percent of the amine is about 0.125, the degree of polymerization is about 800, x is 797, y is unity and the molecular weight can be about 60,000. As the molecular weights of higher polymers sometimes vary depending on the measurement technique used, it is preferable that the primary identification of a described aminosilicon be based on the formula of the aminosilicon rather than the stated molecular weights. The preferred aminosilicone described above is manufactured by Dow Corning Corporation; in the examples below it is identified as Dow Corning Aminosilicone A (this is the identification name used by the applicant).

Polyalkylenes used as water-insoluble conditioning agents in the compositions according to the invention are preferably polyalkylenes with a molecular weight in the range 1000-5000, preferably 1000-4000, especially 2000-2500, e.g. about 2000. Oxidized versions can also be used. those polyalkylene polymers which form larger hydrocarbons with carboxyl terminated groups. Although the alkylenes in these polymers are typically ethylenes, agents containing 1-5 C atoms, especially 2-3 C atoms, the molecular weight of which may range from 1,000-10,000 or more under certain conditions, is also within the scope of the invention. . Typically, however, the polymers consist of ethylene and / or propylene, and almost always ethylene (polyethylene).

Paraffins with a chain length of 20-50 C atoms, preferably 20-40 C atoms, can be used as paraffins, and isoparaffins can have a chain length in the range of 12-16 C atoms, especially 13-14 C atoms. Petroleum petroleum jelly is used as petroleum jelly. or of mineral origin, with a melting point in the range 38-60 °, and microcrystalline waxes are used with an average molecular weight in the range of about 500-800 (twice the value of the paraffins). As C 18 -36 fatty acids and corresponding triglycerides, higher fatty acids and their triglycerides are used, produced by Croda Chemical Corporation (under the trade name Syncrowax HGL-C, e.g. for triglycerides). Stearyl stearate, an example of a suitable higher alcohol ester for higher fatty acid use, is manufactured by Index Corporation under the name Lexol SS.

As cationic conditioning agents (which may be considered secondary conditioning agents in the conditioning agents of the invention), quaternary ammonium salts are preferably used; however, other cationic compounds having fiber conditioning properties can be used, even if only partially. Thus, at least a portion of the quaternary ammonium salts can be replaced with the known amines, amine salts, imidazolinium salts and betaines, and cationic compounds described in US Pat. US Am. No. 4,000,077 as well as cationic and anionic surfactant complexes such as those described in US Pat. US Am. No. 4 896 422.4 888 119.

Preferably the agent of the invention comprises quaternary ammonium salts of the formula R ⁹ , R ¹ °, R ¹ 1, R 1 ² N ⁺ X ', wherein at least one of the R groups is a lower alkyl group and at least aedzo of the R groups is a higher alkyl group and the other R groups are higher and / or lower alkyl groups. Preferably Ro is a lower alkyl group, e.g. 1-4 C atoms, R ¹⁰ and R ^h are higher alkyl groups of 10-40 C atoms, R ¹² is the higher or lower alkyl group as defined above and X- is an anion salt-forming, such as a lower alkyl sulfate halide radical or a lower carboxylic acid group, e.g. chloride, bromide, methyl sulfate, ethyl sulfate, citrate or acetate.

Preferably the lower alkyl groups contain 1-3, especially 1-2 C atoms, and are particularly preferably methyl groups, and the higher alkyl groups preferably contain 10-22 C atoms, especially 12 to 18 or 20, especially 14-18 and most preferably 16 or 18 C atoms. The anion is preferably a halogen such as chlorine, bromine or iodine, especially chlorine and bromine, and most preferably chlorine.

165 265

The number of lower alkyl groups on the quaternary nitrogen is preferably 1 or 2, and the higher alkyl groups usually 2 or 3. Thus these compounds have 2 or 3 long chain alkyl groups and 2 or 1 short chain alkyl groups by 12-20 and 1 respectively or 2 C atoms. The number of carbon atoms in the quaternary ammonium salt has been found to be preferably at least 30, especially at least 34. Most preferred higher alkyls are cetyl and stearyl, and lower alkyl is most preferably methyl.

The most preferred quaternary ammonium halides include tricetylmethylammonium chloride and distearyldimethylammonium chloride, but other quaternary ammonium salts of this type are also suitable, e.g. US Am. Such alternative cationic surfactants and complexes can be used as at least a portion of the cationic surfactant in the inventive compositions.

The long chain primary alcohol of the compositions of the invention is preferably saturated with a hydroxyl group placed as an end group. The alcohol is normally a mixture of homologous alcohols, usually all of which have an even number of carbon atoms, an average of 24-45 carbon atoms (by weight), preferably 28-42, and most preferably 30-40 carbon atoms. If the average number of carbon atoms in the chain is lower than 24, the effectiveness of such alcohols in the compositions of the invention decreases, i.e. the stabilizing, fiber conditioning and pearlescent effect is decreased, since the chain length is over 45 carbon atoms, e.g. 50 carbon atoms, these alcohols are not satisfactorily dispersed in the agents described. Said long chain alcohols may, at least in part, be replaced with related derivatives such as corresponding alkoxylated alcohols, corresponding fatty acid esters and saturated long chain primary alcohols. Of these derivatives, alkoxylated alcohols are most preferred, especially ethoxylated alcohols, usually containing up to about 20 ethoxyl groups per mole, e.g. 10-20. However, the alcohols that constitute the preferred component of the compositions of the invention are normally used alone or in admixture with related compounds from the group of derivatives, alcohol accounting for the major part of the total content of alcohols and derivatives. As examples of commercial products that can be used in the compositions of the invention, mention may be made of those manufactured by Petrolite Corporation and sold by the Petrolite Specialty Polymers Group under the name Unilin Alcohos, which are described in the above-cited technical bulletin. Such alcohols may constitute 75-90%, e.g. 80-85% of the commercial product, with substantially all of the rest being saturated hydrocarbons of suitable chain lengths. In such products, the alcohol distribution curve is generally bell-shaped with no chain length exceeding 1% of the total amount of alcohols, and the corresponding hydrocarbon portion distribution curve is substantially flat with 1 or 2% of each hydrocarbon present.

The above distribution curves and bar graphs are given in the above-mentioned Petrolite bulletin. The alcohols (and corresponding hydrocarbons) in these products typically have chain lengths such that at least 80% are in the range of 18 or 20 to 54 C atoms, with at least 80% in the range of about 18 or 20 to 44 C atoms for the alcohol with an average of about 30 C atoms and at least 80% in the range of about 28 or 30 to 54 C atoms for an average alcohol of about 40 C atoms. Examples of long chain primary alcohols are: Unilin-425 alcohol, averaging 30 C atoms in the chain, Unilin-550 alcohol, an average of 40 C atoms in the chain and Unilin-350, an average of about 26 C atoms in the chain. The derivative Unithox-550 is an ethoxylated alcohol of this type with an average number of C atoms in the alkyl chain, ethoxylated with up to 20 oxyethylene groups, e.g.

The water-soluble synthetic organic anionic detergent which is a component of the shampoos of the invention and may also be a component of some conditioning agents is typically lipophilic sulfate or sulfonate, although other hydrophilic groups in addition to sulfate and sulfonate, e.g., phosphate or phosphonate groups, may be used. .

165 265

The salt-forming cation in such compounds is normally an alkali metal, ammonium or alkanamine cation, with sodium and ammonium salts being preferred. It is also preferred that the anionic detergent is lipophilic sulfate or a mixture of sulfates. As lipophilic groups in anionic detergents, alkyl groups, preferably alkyl groups of higher fatty acids with 12-18 C atoms, are contemplated, although broader ranges of 10, 8 and 6 or up to 18 or 20 C atoms are also contemplated. suitable for the described shampoos, and give a good washing and conditioning effect, and at the same time do not adversely affect the effects of pearly iridescence and conditioning of the entire agent. Particularly preferred detergents are ammonium lauryl sulfate and ethoxylated sodium lauryl sulfate with 1-6 ethoxyl groups per mole, preferably 2 or 3.

The above anionic detergents are most preferred, however they may be replaced, at least to a minor extent, by other anionic detergents; such agents are described in McCutcheon's detergents and Emulsifiers, North American Edition, 1984. In addition, it may be advantageous to use amphoteric, ampholytic and zwitterionic detergents in such formulations, and sometimes relatively small amounts of nonionic detergents, which are also described in the above publication and and in patent application P-285681 (BUP 14/91).

The above-described preferred detergent combinations, namely combinations of higher fatty alkyl sulfate ethoxylates of higher fatty alkyl sulfates, are preferably used in a ratio of 2: 1-8: 1 of the alkyl sulfate to the ethoxylated alkyl sulfate. Preferably, the alkyl sulfate is the ammonium salt and the alkoxylated alkyl sulfate is the sodium salt. However, each of these detergents can be used separately, and some preferred formulations do not use an ethoxylated surfactant.

The ingredients of the agents according to the invention are dissolved and / or emulsified and / or suspended in an aqueous medium. Such an environment may contain various, non-disturbing, normal, known ingredients in shampoo compositions. Several of them are listed below as being particularly advantageous in the compositions according to the invention and imparting them to a large extent the desired characteristics. Higher fatty alkanolamides have long been known as foaming agents and foam stabilizers. These compounds usually contain 12-16 C atoms in the acyl group which is reacted with the lower (1-3 C atoms) mono- or dialkanolamine. Lauric acid monoethanolamide is considered to be the most preferred alkanolamide in the compositions of the invention, but coconut oil diethanolamide is almost self-acting. However, they can be replaced partially or wholly with other known foam stabilizers and foaming agents such as betaines and related compounds. Various gums and thickeners are also useful in shampoos. Hydroxyethyl celluloses, e.g. those manufactured by Aqualon Corporation under the name Natrosol, such as Natrosol 250 HHR and Natrosol 330 CS, have been found to be most preferred, preferably used in a mixture, the former being 2-5 times higher than the latter. While hydroxyethyl celluloses are most preferred, other similar synthetic gums and thickeners may also be used, e.g., methyl cellulose, hydroxypropyl methyl cellulose, Polyquaternum -10, modified starches, and natural gums and thickeners. Guar gum may be used, at most in part, depending on the product. Another important ingredient in the agent of the invention is mineral oil, which is added when polyethylene is used as a hair conditioning agent. Mineral oil is used to solubilize and better disperse polyethylene which, unless well dispersed, has little conditioning effect and tends to deposit.

Other ingredients may also be used in the compositions according to the invention, such as; ethylene glycol monostearate, ethylene glycol distearate and propylene glycol distearate, all of which impart pearlescent properties; viscosity control agents such as propylene glycol and sodium chloride; pH adjusters such as citric acid and citrates; masking agents such as EDTA; anti-freeze agents such as propylene glycol; solvents such as ethanol and isopropanol; preservatives and antioxidants such as Germaben II (Sutton Laboratories); anti-dandruff agents such as zinc pyrithione or Climbazole (see US Patent No. 4,867,971); dyes and flavorings.

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As the water used to create the aqueous medium, not only in liquid preparations, but also in gels, pastes and creams, deionized and irradiated water with substantially zero hardness are preferably used; however, tap water can also be used, although it is more preferred to keep its hardness below 50 ppm, measured as calcium carbonate. While tap waters with a hardness of up to 200 ppm are sometimes useful, they should usually be avoided.

The proportions of the various ingredients in the liquid conditioning shampoos of the invention are given below. These proportions provide the most desirable properties.

The content of surfactants in conditioning agents, e.g. hair rinses, and in shampoos is in the range of 1-35%, preferably 2-35%, and especially

3.5 or 8 to 25%, with these ranges being lower for conditioners and higher for shampoos. These ranges for shampoos are normally 5-35%, preferably 8 to 25 or 30%, especially 10-20%. For shampoos containing alkyl ethoxylates, alkyl sulfates are generally 5-25%, preferably 10-20%, especially 10-15% for the first component up to 15%, preferably 0 or 1 to 10%, especially 0 or 1 to 5% for the first component. second component. When each of the sulfonated detergents is used separately, the ranges stated for the alkyl sulfate apply.

The content of water-insoluble conditioning agent (s) excluding cationic surfactants should provide a conditioning effect or, in combination with the cationic surfactant present, have a satisfactory conditioning effect on the hair; this content is normally in the range 0.3-10% for both hair conditioners and shampoos, preferably 0.3-7%, especially 0.3-5%. The cationic surfactant is present in an amount to provide or aid conditioning; this amount is normally 0.1-5% for both conditioning agents and shampoos, preferably 0.1-3%, especially 0.1 or 0.3 to 0.7 or 1%.

The total amount of saturated long chain primary alcohols and / or derivatives thereof is normally 0.5-10%, preferably 0.5 to 5 or 6%, especially 1-5%.

The content of the aqueous medium, which may contain various auxiliaries, is usually in the range of 75-99%, the water content of such shampoo being 60-90%, preferably 63-85%, especially 63-80%. However, the contents of water and aqueous medium may vary depending on the amount of excipients beneficial to the agent in question. Normally, the ratio of saturated long chain primary alcohols and / or derivatives to conditioner (s) is 0.2 to 5, preferably in the range 0.3 to 3, with ratios of 0.5 to 2 being more preferred, and about 1 is most preferred.

In different shampoos according to the invention, the proportions may vary within the above ranges as shown in the preferred compositions described below.

For shampoos containing lipophilic sulfates, quaternary ammonium salt, aminosilicone, and saturated long chain primary alcohol in water, the usual composition is 5-18% fatty alcohol sulfate, preferably as ammonium salt, 0 or 1 to 10% ethoxylated alcohol sulfate a fatty acid, preferably in the form of a sodium salt (the ratio range may be 1:10 to 10: 1), 0.2-2% quaternary ammonium salt, 0.5-10% aminosilicone, 0.5 to 5 or 6% saturated, long chain primary alcohol and / or derivatives thereof, 65-85% water and the rest any shampoo agent or adjuvants. The preferred ranges are 10 to 15 or 20%, or 1 to 5%, 0.1 to 0.7 0.8 to 4%, 1 to 5.0% and 63 to 80%, respectively.

Such shampoos may also contain 0.2-2% of hydroxyethyl cellulose (or other suitable thickener), 2-5% monoethanolamide of lauric acid or coconut oil diethanolamide, and optionally 0.5 to 2% of a microcrystalline wax and optionally 0.5 to 1 % Vaseline.

Another such agent, in addition to the ingredients listed above in the first six ranges, further comprises 0.3-2% polyethylene and 0.3-2% mineral oil, preferably 0.5-1.5% 0.5-2%, respectively. Content of hydroxyethyl cellulose and lauric acid monoethanolamide

265 is as defined above, but in addition 0.1-2%, preferably 0.1-1% of a paraffin wax and 0.1-2%, preferably 0.1-0.5%, of isoparaffin are added.

A preferred shampoo according to the invention comprises 2 to 35 wt.% As anionic detergent. ammonium lauryl sulfate as stabilizer 0.5 to 10 wt. % primary alcohol having an average chain length of about 30 carbon atoms and which at least 80 wt. % of the chain contains 20 to 44 carbon atoms as a conditioning agent 0.3 to 10 wt. % dimethylpolysiloxane, and additionally up to 2 wt. % of hydroxyethyl cellulose and up to 5 wt. % coconut diethanolamide and 60 to 90 wt. water, with the weight ratio of alcohol to conditioner in the range of about 0.5 to 2: 1.

In a shampoo containing polyethylene as the primary hair conditioning agent, together with a quaternary ammonium halide and a high molecular weight fatty solobilizing agent such as polyethylene solobilizing mineral oil, the amounts of ingredients are as stated above for anionic detergents, cationic conditioning agents for saturated primary conditioning agents. long chain alcohols and / or their derivatives, water and other auxiliaries present. In such shampoos, the addition of the aminosilicon can be omitted, and the amount of the oxyalkylated detergent can be increased up to 15%, while the amounts of polyethylene and mineral oil are usually 0.3-2% for each, preferably in the range of 0.5- 1.5% and 0.5-2%. Other preferred ingredients include 0.2-2% hydroxyethyl cellulose, 2-5% lauric monoethanolamide, 0.1-1% paraffin wax and 0.1-0.5% isoparaffin.

In another shampoo according to the invention, the amounts of anionic detergents, cationic surfactants, aminosilicone, saturated long chain primary alcohols or derivatives, other excipients and water are the same as in the first ingredient, except that it contains saturated, a long chain primary alcohol (optionally derivative thereof) which preferably has 0.5 or 1 to 2 or 3% of a chain length of approximately 30 C atoms on average and 2 or 3% of a chain length of approximately 40 C atoms to average.

This modified composition also contains 0.5-2% of a polyoxyethylated long-chain saturated primary alcohol (derivative) in which the alcohol has an average chain length of about 40 C atoms and is ethoxylated with 10-20 moles, e.g. 13 moles of ethylene oxide per mole. Both of these compositions, not containing gums or gum-like substances (hydroxyethyl cellulose), can be supplemented with 2-5% lauric acid monoethanolamide, 0.5-2% acid triglyceride with 18-36 C atoms and 0.1-0.5% citrate, preferably sodium citrate. A further modification of the latter composition also includes the presence, as hair conditioning agents, of 0.1-1% paraffin wax and 0.5-1.5% normal solid polyethylene with a molecular weight in the range 1000-4000, with 0.5-2% mineral oil with a molecular weight of 300-800, present as a solvent for the polyethylene.

Other preferred formulation examples include the same proportions of anionic detergents, cationic surfactants, aminosilicone, saturated long chain primary alcohol, water and shampoo agent or excipients as in the last formulation given above, but additionally contain a complementary conditioning agent. namely 0.25-5% mixed acid triglyceride with 18-36 C atoms. Such a composition may also contain 2-5% lauric acid monoethanolamide, 0.2-2% hydroxyethyl cellulose, 0.5-2% microcrystalline wax and 0.5 -1% petroleum jelly. Instead of microcrystalline wax and petroleum jelly, 0.5-1.5% of the above-described polyethylene and 0.5-2% of the above-described mineral oil can be added.

For compositions according to the invention in the form of gels, pastes, thick creams and compressed forms, the necessary optional and auxiliary ingredients are usually added in the same ratio ranges as in the aqueous preparations, but the proportion of water is often lowered, sometimes down to 30 or 40%. The water may also be replaced, sometimes up to 50% and usually not more than 20%, with another solvent, e.g. ethanol or isopropanol.

The hair conditioning shampoos according to the invention may be in the various physical forms mentioned, but are preferably in liquid form (having a lotion appearance), the most preferred form being a liquid hair conditioning shampoo. That these measures are up to

165 265 accepted for commercial purposes, they must be chemically and physically stable. They must not deteriorate to an unacceptable degree during storage and must not contain components which settle or separate into phases during storage. The presence of said long chain primary alcohols (Unilin or Unithox type) stabilizes the compositions of the invention and additionally gives them an attractive pearly iridescent appearance and also improves fiber conditioning. Furthermore, such shampoos have the desired viscosities, i.e., pourable, and are not so runny that they can flow uncontrollably. A viscosity of 1,000-15,000 mPa · s at room temperature (25 ° C), preferably 3,000-6,000 mPa · s, is desirable. The shampoos according to the invention do not settle and separate, and do not chemically deteriorate on storage, which is confirmed by accelerated aging tests. elevated temperatures. The viscosity of the shampoo may change slightly with storage, but the change does not significantly affect the properties of the shampoo. Or, a desired application viscosity can be obtained by producing a shampoo having a specific viscosity that takes into account any expected changes in viscosity prior to use.

The improvement in hair conditioning obtained with the agents according to the invention, compared to the controls in which the addition of the aforementioned conditioning agents is omitted, is very noticeable even to the casual user of the shampoo according to the invention. This improvement can be measured by standard tests used to evaluate conditioning and its components such as wet-combability, dry-combing ease, ease of styling, electrostatic charge retention, and drift. The casual shampoo user will find that the hair is easier to comb after applying the shampoo, both wet and dry, compared to hair washed with another shampoo (which lacks all or part of the conditioning ingredients).

Scientific tests also show that the force required to advance the comb through a standard hair piece after the hair has been shampooed (shampooed) according to the invention and rinsed out is less measurable than when the control is also used. These results were confirmed by means of group tests, of which a number of experienced professionals using such experimental and control measures in a blank test evaluate for ease of combing, styling, electrostatic characteristics and effects.

The use of shampoos according to the invention need not differ from the normal use of shampoos and other hair conditioning agents. They can be used at room temperature or at slightly higher temperatures in normal amounts, and can be left on the hair for varying amounts of time depending on the degree of conditioning desired. Typically shampoos are used in amounts in the range 0.5-50 g, often 2 to 15 or 20 g, and especially 5 or 10 g per application. The applied conditioner can be spread over the entire hair with a brush and / or comb and then washed off or left on the hair, or removed partially, e.g. by wiping with a towel.

When using a shampoo to wash and condition the hair, an aqueous foam is left on the hair for a sufficient period of time, typically 1-5 minutes, so that the hair is sufficiently conditioned, and then rinsed with water. Then the hair can be wet combed, dried, for example with a dryer, and combed or dry brushed in the desired manner.

The preparation of the compositions according to the invention does not require complicated processes but in order to obtain the best stability and pearlescent iridescence and the highest conditioning activity after storage of the compositions, it is preferable to prepare a dispersion of water-soluble lipophilic sulphate and / or sulphonate detergent (s) and auxiliaries in water at elevated temperature. , e.g. 70-95 ° C, dissolving and / or dispersing a cationic conditioning agent such as a quaternary ammonium salt with any lipophilic materials such as hydrocarbons, including polyethylene, mineral oil, microcrystalline wax, petroleum jelly, paraffin and isoparaffin, alcohol long chain triglyceride and stearyl stearate, in the form of a melt or a mixture of liquids at elevated temperature, mixing the two mixtures at this elevated temperature, then optionally blending heated aminosilicone (which can sometimes be

165 265 included in lipophilic compounds), and the portions to be mixed are mixed and kept at approximately the same temperature. It is sometimes desirable to mix in amidosilicode after the first batch to provide better product stability. When auxiliary agents are present those which are water soluble and / or dispersible can be mixed with the substances in the aqueous phase and those which are insoluble and / or die dispersible in water can be mixed with lipophilic substances such as hydrocarbons or , in some cases, can be added to the mixture of hydrophilic and lipophilic materials either before or after cooling to room temperature. Flavorings are usually added to the other blended ingredients after cooling to room temperature, and the amincsiiikcd is added at the elevated temperature and before cooling. Flavorings are added to chilled compositions to avoid their loss by volatilization and to prevent their decomposition on heating. If this production method is not followed, for example, the various ingredients are randomly mixed, unstable products can be obtained which may separate or settle on storage. Such unstable formulations tend to have poorer conditioning properties than the stable formulations and shampoos of the invention.

The following examples illustrate the invention in more detail. Unless otherwise stated, all parts are by weight and temperatures are in degrees Celsius in both the description and the examples and the claims.

Example I.

Ingredient % (by weight) 1A 1B 1C ammonium lauryl sulfate 12.50 12.50 12.50 sodium oxyethylene lauryl sulfate (2 EtO per mole) 2.50 2.50 2.50 Eiztealldimethylammonium chloride 0.50 0.50 0.50 Aminosilicoz A (Dow-Coming) 2.50 - 1.50 Long-chain alcohol (Unilm 425, Petrolite Corp.) 2.50 2.50 2.50 Polyethylene (MW = 2,000, Allied Corp.) - 0.75 0.75 Microcrystalline wax (Ambient temperature = 82 ° C) 1.00 - - Paraffin wax (Melting point = 53 ° C., Boler Petroleum Corp.) - 0.35 0.35 Isoparaffins (Isopar M, Exxon Corp.) - 0.25 0.25 White Vaseline (Alba Protopet) 0.75 - - Mineral oil (Britol 50, Boler Petroleum Corp.) - 1.00 1.00 Hydroxyethylcellulose 250 HHR (Agualon Corp.) 0.57 0.67 0.67 Hydroxyethyl cellulose 330 CS (Aqualon Corp.) 0.18 0.23 0.23 Modcetanclcamide of lauric acid 3.50 3.50 3.50 Sodium chloride 0.20 0.20 0.20 Preservative II 0.50 0.50 0.50 Flavoring agent 0.80 0.80 0.80 Dye 0.10 0.10 0.10 Dejozizcwada water 71.90 73.65 > 72.15 100.00 100.00 100.00.

Preparations of the composition 1A, 1B and 1C are prepared as described in the description by mixing the hydrophyte components, separately mixing the felt components and mixing both these mixtures, while mixing is carried out at an elevated temperature, e.g. 80 ° C. Thereafter, optional aminosilicones are added and mixed; sodium chloride to adjust the viscosity. Finally, after cooling the flavored shampoo, the flavoring is added at about room temperature (25 ° C), where pearlescent shampoo appears.

All the products obtained are attractive pearlescent liquid shampoos with viscosities on the order of 3000-6000 mPas at 25 ° C and a pH in the range 6-7; all are stable in elevated temperature storage tests with no appreciable separation

165 265 components. Hair conditioning tests, carried out as described above, have shown that they are all good shampoos, superior to the control shampoos, without the water-insoluble conditioning agents that are included in the formulations above. The conditioning achieved by each of the above formulations is at least equivalent to the best conditioner shampoo currently on the market, and the formulation 10 has a conditioning effect that is superior to said commercial product to a significant and measurable extent.

If the anionic detergent is removed from the formulation 1C, the resulting hair (and fiber) conditioner is suitable for treating fibrous materials and may be used as a human hair rinse. In both of these applications, even after rinsing the product with water, the treated fiber material has a lower electrostatic charge, becomes soft and pliable to the touch, and is shiny and attractive in appearance. Also, the hair treated with this preparation becomes less prone to undesirable parting and easier to comb and style.

In other modifications to compositions 1A, 1B and 1C, which also do not fall within the scope of the invention, such as the above-mentioned modification of composition 1C, where the addition of a long chain alcohol to the formulation is omitted and replaced with deionized water, the shampoo tends to become unstable and breaks apart. on the phases and / or some of its components settle on storage at elevated temperature. Also, the conditioning is not so good and the pearlescent iridescence is either absent or less and less attractive.

When the Aminosilicon A component is replaced with conventional non-volatile silicones or other aminosilicones, conditioning activity is significantly reduced (but still present) in formulas 1A and 1C. This activity in the 1C composition can be further increased by adding 1% Aminosilicon A to it instead of 1% deionized water, so as to increase the percentage of Aminosilicon A to 2.50%, i.e. as in the 1A composition. Likewise, when 2.50% Aminosilocon A is added to Formula 1B instead of this percentage of water, the conditioning effect is significantly improved.

Example II. % (by weight)

Ingredient 2A 2B 2C Ammonium lauryl sulfate 12.50 12.50 12.50 Ethoxylated sodium lauryl sulfate 2.50 2.50 2.50 Distearyldimethylammonium chloride 0.50 0.50 0.50 Aminosilicon A (Dow-Corning) 1.50 - 1.50 Long Chain Alcohol (Unilin 425, Petrolite Corp.) 1.50 1.50 1.50 Long Chain Alcohol (Unilin 550, Petrolite Corp.) 1.00 1.00 1.00 Long chain ethoxylated alcohol (Unithox 550, Petrolite Corp.) 1.00 1.00 1.00 C18-36 triglyceride (Synorowax HGL-C, Croda Corp). 1.00 1.00 1.00 Paraffin wax (Melting point = 53 ° C., Boler Petroleum Corp.) - 0.35 0.35 Polyethylene 617-A (Allied Corp.) - 0.75 0.75 Mineral oil (Britol 50, Boler Petroleum Corp./ - 1.00 1.00 Isoparaffin (Isopar M, Exxon Corp.) - 0.25 0.25 Lauric acid monoethanolamide 3.50 3.50 3.50 Preservative (Germaben Π) 0.50 0.50 0.50 Sodium citrate 0.25 0.25 0.25 Flavoring agent 0.80 0.80 0.80 Dye 0.10 0.10 0.10 Deionized water 73.35 72.50 71.00

100.00 100.00 100.00

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The formulations of this example were prepared as described in Example 1 and the description. All shampoos are attractively pearly and stable when stored at elevated temperatures. In addition, they are excellent hair conditioning shampoos that have the same or better washing and conditioning characteristics than the best commercial shampoo on the market, with formulas 2A and 2B having the same conditioning ability and formulation 2c superior to. This shampoo is given the desired viscosity and pH as in the preparations of Example 1.

Example 111.

% by weight

Ingredient 3A 3B Ammonium lauryl sulfate 12.50 12.50 Ethoxylated sodium lauryl sulfate (2 EtO) 2.50 2.50 Distearyldimethylammonium chloride 0.50 0.50 Aminosilicon A (Dow-Coming) 1.50 1.50 Long Chain Alcohol (Unilin 425) 1.00 1.00 Microcrystalline wax 1.00 - Vaseline, white 0.75 - Syncrowax HGL-C (Croda Corp.) 0.75 0.75 Polyethylene 617-A (Allied Corporation) - 0.75 Mineral oil (Britol-50) - 1.00 Lauric acid monoethanolamide 3.50 3.50 Hydroxyethyl cellulose 0.75 0.75 Preservative (germaben II) 0.50 0.50 Dye 0.10 0.10 Flavoring agent 0.80 0.80 Deionized water 73.85 73.85 100.00 100.00

The formulations of this example are prepared as in Examples I and II and as stated in patent application P-285681. Both shampoos contain saturated, long chain primary alcohol of the Unilin 425 type in combination with a mixed triglyceride of 18-36 C atoms, aminosilicone and polyethylene or with aminosilicone, microcrystalline wax and petroleum jelly as water-insoluble conditioning agents. The shampoos have an attractive pearl effect and are stable when stored at elevated temperatures. In addition, they have better hair conditioning properties, with Formulation 3B being even better at conditioning hair than Formulation 3A. When Aminosilicon A and Unilin 425 are increased to 2.50% and 2.00% at the expense of deionized water, the conditioning is further improved and the stability and pearlescence are still excellent.

Example IV. % by weight

Ingredient 4A 4B 4C 4D Ammonium lauryl sulfate 12.50 12.50 12.50 12.50 Dioxyethylene sodium lauryl sulfate 2.50 2.50 2.50 2.50 Distearyldimethylammonium chloride 0.50 0.50 0.50 0.50 Aminosilicon A (Dow Corning) 1.50 1.50 1.50 - Long Chain Alcohol (average C30) 2.50 2.50 1.50 2.50 Long chain alcohol (average C40) - - 1.00 - Unithox 550 ethoxylated alcohol long Chain (C40 average) (13 EtO) - - 1.00 - Microcrystalline wax 1.00 - - - Vaseline, white 0.75 - - - Syncrowax HGL-C - - 1.00 - Polyethylene 617-A (Allied Corp.) - 0.75 - 0.75 Paraffin wax (mp temp. = 53 ° C) - 0.35 - 0.35

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Mineral oil (Britol 50) - 1.00 - 1.00 Isopar M - 0.25 - 0.25 Lauric acid monoethanolamide 3.50 3.50 3.50 3.50 Hydroxyethylcellulose 250 HHR 0.57 0.67 - 0.67 Hydroxyethyl cellulose 330 CS 0.18 0.23 - 0.23 Preservative 0.50 0.50 0.50 0.50 NaCl 0.20 0.20 0.20 0.20 Sodium citrate - - 0.25 - Dye 0.10 0.10 0.10 0.10 Flavoring agent 0.80 0.80 0.80 0.80 Deionized water 72.90 72.15 73.15 73.65 100.00 ' 100.00 100.00 100.00

The formulations of this example are prepared as in Examples 1-3 and as set forth in patent application P-285681. The products obtained, all containing a long-chain alcohol or derivative of the above-described type, which improves conditioning and stability and gives the shampoo a pearly iridescence, are all attractively pearly liquids with a pH of 6-7 and viscosities of 3000-6000 mPa s at 25 ° C . All of them have better stability than formulas that do not contain long chain alcohol or its derivative, and all are excellent hair cleansers and conditioning agents. It should be noted that all these formulations contain the most preferred long chain alcohol with an average of 30 C atoms, and formulation 4C also contains the corresponding alcohol and an ethoxylated alcohol with an average of 40 C atoms.

The 4C formulation is also gum-free and the conditioning is mainly due to ingredients such as Aminosilicon A, long chain alcohols and their derivatives, and long chain fatty acid triglyceride (Syncrowax). 4C shows the best conditioning and stabilization effects, but all four formulations are excellent conditioning shampoos, competing in the desired conditioning properties, stability and appearance of the best conditioning shampoos on the market.

EXAMPLE 5 In Examples 1-4, the preferred mixtures of ammonium lauryl sulfate and oxyethylated sodium lauryl sulfate were used, but similar results were obtained with other higher alkyl sulfates such as the sodium and triethanolamine salts of C14-18 alkyl sulfuric acids. Likewise, it is possible to replace by ethoxylated C 14-18 sulfates in which the oxyethylene group contains 1 or 2 to 5 or 6 C atoms, preferably 3, and the sodium is replaced by an ammonium or triethanolamine cation. In a similar manner, distearyldimethylammonium chloride may be replaced with another quaternary ammonium salt such as tricetylmethylammonium bromide or chloride or dilauryldiethylammonium chloride and sometimes even with trimethylstearylammonium chloride or a suitable compound in which the alkyl portion is derived from beef tallow. Other water-insoluble conditioning agents may also be varied using other forms of such materials falling within the scope described herein, e.g., other ethoxylation of long chain primary alcohols with an average of 24-40 C atoms in the alcohol chain and corresponding esters and acids. Other various adjuvants can also be used in place of those listed in the table above. For example, monoethanolamide can be replaced by mono- or diethanolamide lauryl and myristyl or the corresponding coconut acid alkanolamide or the corresponding isopropanolamides, including EDTA, and hydroxylated ethyl celluloses can be replaced with hydroxylated propyl methyl celluloses, methyl cellulose or other suitable gums or thickeners. In such cases, the formulations obtained will be high-quality, well-conditioning, stable and attractively pearly shampoos with the desired pH and viscosity.

Similarly, when the anionic detergent (s) are removed from the formulations given, conditioning rinses and fiber conditioners with similar properties will be obtained.

265 which satisfactorily condition the fibrous materials such as hair in the described manner. Such preparations may be in the form of a liquid, gel, paste or cream.

Example VI.

% by weight

Ingredient AND B Part I. Illuminated deionized water 72.19 71.89 Hydroxyethylcellulose (Natrosol 250 HHR) 0.20 - Ammonium lauryl sulfate 15.00 15.00 Monoammonium phosphate (buffer) 0.10 0.10 Part II Unilin 425 3.00 3.00 Coconut oil diethanolamide 4.00 5.00 C ointment HI Aminosilicon A. 3.00 3.00 Part IV Flavoring agent (CP Paris K3-157 new revised 3) 0.80 0.80 NaCl 0.50 - 100.00 100.00

Generally, the components of each of parts I and II are mixed separately as described above, then mixed together at 90 ° C and then sequentially added to the total of parts III and IV, part IV being added at room temperature .

The resulting shampoos are both opalescent and pearly attractive in appearance and of the desired viscosity and pH. Both conditioning shampoos used them are as good or better than the most effective of the best conditioning shampoos on the US market today.

The amount of Aminosilicon A given in the recipe is based on pure aminosilicone, although it is used together with one part of the solvent to 3 parts of silicone to reduce its viscosity (this was also used in other examples where the amounts are also given for pure aminosilicone) . In addition, ammonium phosphate buffer can be used in these recipes up to 0.20%.

In a formulation variant, Unilin 550 or pure linear, saturated long chain alcohols of 30 or 36 C per molecule (or a mixture thereof) may be used instead of Unilin 425, with the same results. Conditioning can also be further improved by incorporating quaternary ammonium salts, e.g., distearyldimethylammonium chloride, and other conditioning agents, e.g., microcrystalline wax, petroleum jelly, polyethylene and beeswax. Also, the aminosilicone can be replaced with non-amino silicones and dimethicones, such as the silicones in US Pat. US Am. No. 4,704,272 and other non-volatile (preferably) water-insoluble silicones.

Example VII. The formulations of the preceding examples can be further modified by varying the proportions of the various ingredients within + 10%, + 20% and + 30%, while keeping them within the ranges stated above in the description. The modified formulations are stable pearlescent shampoos with improved conditioning properties for the hair and fibers. When used to wash the hair as described in this specification, which consists in applying shampoo to the hair, often in the presence of additional water, and then rinsing, the hair is well washed and conditioned. They are easy to comb wet or dry, do not trap unwanted static electricity, are easier to style and are softer to the touch.

The agents of the invention, illustrated by the examples above, represent a significant advance in the field of hair conditioning. By using the described long chain primary alcohols, which are preferably fully saturated, or a derivative thereof, in combination with the described water-insoluble conditioning agent (s) (and cationic surfactants), significantly improved conditioning shampoos have been obtained. hair that has as good or better conditioning properties than hitherto produced agents of this type. This has been achieved by using the mentioned long chain alcohols or derivatives thereof such as Unilin and Unithox which are known products but hitherto not known as ingredients in hair conditioning shampoos.

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R CH _q CHo ₂ II ³ I ³

R -Si - 0 - (Si -OL - (Si-O) _v I l ^x I ^y

R3 CH ₃ R

R ⁵

Si - R ⁶ lo

PATTERN

Publishing Department of the UP RP. Circulation of 90 copies

Price: PLN 10,000

Claims (16)

Patent claims 1. A permanent hair conditioning shampoo, in the form of an emulsion or suspension, containing a synthetic organic detergent and a water-insoluble hair conditioning agent, optionally excipients, in an aqueous medium, containing 1 to 35% by weight of synthetic organic detergent, 0.3 -10% by weight of water-insoluble hair conditioner, saturated long chain primary alcohol with an average of 28-42 C atoms in the chain, or an alkoxylated derivative thereof as stabilizer, sufficient to stabilize an emulsion or suspension and an aqueous medium of 60-90 %, wherein the ratio of the content of long-chain alcohol or a derivative thereof to the conditioning agent is in the range of 0.2: 1 to 5: 1. 2. A shampoo according to claim 1 1, characterized in that the detergent is an anionic detergent. 3. The shampoo according to claim 1 The process of claim 2, wherein the anionic detergent is selected from the group consisting of ammonium fatty alcohol sulfate salts, ammonium salts of fatty alcohol alkoxylated sulfates, and mixtures thereof. 4. The shampoo according to claim 1 The process of claim 1, wherein the conditioning agent is silicone. 5. The shampoo according to claim 1 The process of claim 4, wherein the silicone is polysiloxane. 6. The shampoo according to claim 1 The process of claim 4, wherein the silicone is an aminopolysiloxane. 7. The shampoo according to claim 1 The process of claim 1, wherein the stabilizer is present in an amount of 0.5 to 10% by weight 8. A shampoo according to claim 1 The process of claim 1, wherein the stabilizer is a primary alcohol which contains an average of 30 to 40 carbon atoms in the chain. 9. The shampoo according to claim 1 The process of claim 8, wherein at least 80% by weight of the chains have a length ranging from 20 to 44 carbon atoms. 10. The shampoo according to claim 1 The process of claim 8, wherein at least 80% by weight of the chains have a length ranging from 28 to 54 carbon atoms. 11. A shampoo according to claim 1 The process of claim 1, wherein the stabilizer is an alkoxylated alcohol derivative with up to 20 alkoxy groups per molecule. 12. A shampoo according to claim 1, The process of claim 1, wherein the stabilizer is a mixture of a primary alcohol having an average of 30 carbon atoms in the chain and a primary alcohol containing an average of 40 carbon atoms in the chain 13. A shampoo according to claim 1, % By weight of claim 1, further comprising 0.2 to 2 wt. hydroxyethyl cellulose. 14. A shampoo according to claim 1, The process of claim 1, further comprising from 2 to 5% by weight of a foam modifier selected from the group consisting of lauric acid monoethanolamide and coconut oil acid diethanolamide. 15. A shampoo according to claim 15 The process of claim 1, comprising from 0.2 to 2% by weight of the quaternary ammonium salt. 16. A shampoo according to claim 16 The process of claim 1, wherein the anionic detergent is 2 to 35 wt.% Ammonium lauryl sulfate, as stabilizer 0.5 to 10 wt.% Of a primary alcohol with an average chain length of about 30 carbon atoms, wherein at least 80 wt.% Of the chains contain 20 to 44 carbon atoms as a conditioning agent 0.3 to 10 wt.% dimethyl polysiloxane, and additionally up to 2 wt.% hydroxyethylcellulose and up to 5 wt.% coconut diethanolamide and 60 to 90 wt.% water, the weight ratio of alcohol to conditioner being in the range from 0.5 to 2: 1. 165 265