JPH08217647A - Hair-conditioning composition - Google Patents

Abstract

PURPOSE: To provide a hair-conditioning composition which comprises a specific (meth)acrylic copolymer and a resin having a molecular weight in a specific range and melting at a specific temperature, thus is excellent in hair-style making and style duration and can inhibit unpleasant hair drying and white powder deposition. CONSTITUTION: This hair-conditioning composition comprises (A) a copolymer comprising 30-80wt.% of a (meth)acrylamide monomer of formula I (R<1> is H, methyl; R<2> , R<3> are each H, a 4-12C alkyl), 5-45wt.% of a (meth)acrylate ester monomer of formula II (R<4> is a 1-4C alkyl), and 2-30wt.% of a tertiary amino group-bearing (meth)acrylate ester monomer of formula III (R<5> is a 2-3C alkylene; R<6> , R<7> are each methyl or ethyl; a is 0, 1) and/or a (meth)acrylamide monmer and 0-30wt.% of a (meth)acrylate ester monomer of formula IV (R<8> , R<9> are each a 2-4C alkylene; R<10> is H, methyl; b, c are each 0-50 where b and c are not H simultaneously) and (B) a resin of a weight-average molecular weight over 50,000, melting at 40-100 deg.C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair styling composition, and more specifically, it is excellent in easiness of making a hairstyle and holding power,
The present invention relates to a hair styling composition capable of suppressing dryness and white dust.

[0002]

2. Description of the Related Art In general, when styling a hairstyle, in order to squeeze wet or dry hair, the hair is blown with a hair dryer. At this time, a set foam or the like mixed with a film-forming resin is used in order to make it easier to squeeze or enhance the durability of the set.

However, the film-forming resin used in the conventional hair styling agent hardens when the hair dries, making it impossible to repair it further, making it difficult to set the hair as desired and forming a solidified film. Since the resin was destroyed, the hairstyle was difficult to last, white powder (flaking) was generated, and there was a feeling of dryness.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a hair styling composition which is excellent in the easiness of making a hairstyle and has a holding power and which suppresses dryness and white dust.

[0005]

Under such circumstances, as a result of intensive investigations by the present inventors, a specific acrylic or methacrylic copolymer was combined with a resin having a weight average molecular weight and a melting point in a specific range. It was found that, when combined, a hair styling composition that is excellent in easiness and holding power of a hairstyle and suppresses dryness and white dust can be obtained, and completed the present invention.

That is, the present invention provides the following components (A) and (B): (A) a copolymer obtained from monomers (a) to (d), (a) the following formula (1):

[0007]

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Wherein R ¹ is hydrogen or a methyl group, R ² and R ³ are independently hydrogen or an alkyl group having 4 to 12 carbon atoms, or R ² and R ³ together with the adjacent nitrogen atom. 30-80% by weight of an acrylamide-based or methacrylamide-based monomer represented by (representing the ring formed); (b) the following formula (2)

[0009]

[Chemical 6]

5 to 45% by weight of an acrylic acid ester-based or methacrylic acid ester-based monomer represented by the formula (wherein R ¹ represents hydrogen or a methyl group and R ⁴ represents an alkyl group having 1 to ⁴ carbon atoms); ) Equation (3)

[0011]

[Chemical 7]

(Wherein R ¹ represents hydrogen or a methyl group, R ⁵ represents an alkylene group having 2 to 3 carbon atoms, R ⁶ and R ⁷ independently represent a methyl group or an ethyl group, and a represents 0 or 1). 2 to 30% by weight of an acrylic acid ester-based or methacrylic acid ester-based monomer and / or an acrylamide-based or methacrylamide-based monomer having a tertiary amino group represented by the following formula (4)

[0013]

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(Wherein R ¹ is hydrogen or a methyl group, R ⁸ and R ⁹ are independently an alkylene group having 2 to 4 carbon atoms, R ¹⁰ is a hydrogen or methyl group, and b and c are independently 0 to 0). Acrylic ester-based or methacrylic acid-based monomer represented by an integer of 50, provided that b and c are not 0 at the same time) 0 to 30% by weight, (B) weight average molecular weight 5
The present invention provides a hair styling composition containing a resin having a melting point of 40 to 100 ° C.

The acrylic or methacrylic copolymer used in the present invention is a film-forming resin, and has the above-mentioned (a).
It is obtained by copolymerizing the monomer components (d) to (d).

Of these monomers, the component (a),
That is, as the monomer represented by the formula (1), for example,
(Meth) acrylamide (means a generic term for acrylamide and methacrylamide. Hereinafter, similarly, a generic term for acrylic acid residue CH ₂ = CH-CO- and methacrylic acid residue CH ₂ = C (CH ₃ ) -CO- (Meth) acrylic), Nn-butyl (meth) acrylamide, Nt-butyl (meth) acrylamide, N-octyl (meth) acrylamide, N
-Lauryl (meth) acrylamide, (meth) acryloylmorpholine, etc. can be mentioned. Among these, Nt-butyl (meth) acrylamide, N-octyl (meth) acrylamide, and N-lauryl (meth) acrylamide are preferable. These are used alone or in combination of two or more, and used in an amount of 30 to 80% by weight, preferably 40 to 70% by weight, based on the total amount of monomers constituting the copolymer.

The component (b), that is, the monomer represented by the formula (2) is, for example, methyl (meth) acrylate,
Examples thereof include ethyl (meth) acrylate, propyl (meth) acrylate, and butyl (meth) acrylate. These are one kind or a combination of two or more kinds, and are 5 to 45% by weight, preferably 10 to 4% by weight based on the total amount of monomers constituting the copolymer.
0% by weight is used.

Examples of the component (c), that is, the monomer represented by the formula (3) include (meth) acrylic acid-N, N.
-Dimethylaminoethyl, (meth) acrylic acid-N, N
-Diethylaminoethyl, (meth) acrylic acid-N, N
-Dimethylaminopropyl, N, N-dimethylaminopropyl (meth) acrylamide and the like can be mentioned. These are 2 to 30% by weight, preferably 10 to 2% by weight of the total monomers constituting the copolymer, either alone or in combination of two or more.
0% by weight is used.

Examples of the component (d), that is, the monomer represented by the formula (4) include hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, polyethylene glycol mono (meth) acrylate, polypropylene glycol mono ( Examples thereof include (meth) acrylate, methoxypolyethylene glycol mono (meth) acrylate, and methoxypolypropylene glycol mono (meth) acrylate. These may be used alone or in combination of two or more, and may be 0 to
30% by weight, preferably 5 to 15% by weight is used.

The copolymerization reaction of these monomers (1) to (4) is carried out in the presence of a radical polymerization initiator, for example, by a known polymerization method such as bulk polymerization method, solution polymerization method, suspension polymerization method,
It can be produced by an emulsion polymerization method or the like, and it is particularly advantageous to copolymerize it by a solution polymerization method. Further, other monomers may be added and copolymerized appropriately within a range that does not impair the effects of the present invention.

As the solvent used in the solution polymerization method, a water-miscible organic solvent or a mixed solvent of such an organic solvent and water can be used. In this case, the organic solvent may be one kind or two or more kinds. You may mix and use it. Examples of water-miscible organic solvents include aliphatic alcohols having 1 to 3 carbon atoms (eg, methanol, ethanol, propanol), ketones (eg, acetone, methyl ethyl ketone), ethers (eg, tetrahydrofuran, glyme, diglyme, dioxane). And the like, and in particular, methanol, ethanol, acetone or a mixture thereof with water is preferable.

Radical polymerization initiators that can be used in the copolymerization reaction include azo compounds such as 2,2'-azobisisobutyronitrile, 2,2'-azobis (2,4-dimethylvaleronitrile), 2, 2'-azobis (4-methoxy-2,4-dimethylvaleronitrile), dimethyl-
2,2'-azobisisobutyrate, 2,2'-azobis (2-methylbutyronitrile), 1,1'-azobis (1-cyclohexanecarbonitrile) and the like are preferable. Further, organic peroxides such as t-butyl peroctoate, dicumyl peroxide, di-t-butyl peroxide, dibenzoyl peroxide and the like can also be used. When such an organic peroxide is used, there is a possibility of causing a redox reaction with the tertiary amino group of the above-mentioned monomer (3), and therefore the reaction is carried out at a low temperature of 40 ° C. or lower while controlling the reaction. In general, the amount of the polymerization initiator used is preferably 0.001 to 2.0 mol% and more preferably 0.01 to 1.0 mol% with respect to the monomer mixture.

At the time of polymerization, the monomer and the polymerization initiator may be charged by heating after charging all of the monomer mixture and the polymerization initiator, or by appropriately dropping each monomer and / or the polymerization initiator. Alternatively, heating may be performed while charging in divided portions.

The copolymerization temperature is appropriately selected depending on the type of polymerization initiator, monomer, solvent, etc. used, but is usually 30.
-100 to 100 ° C, preferably 50 to 90 ° C. Moreover, the atmosphere of the copolymerization can be an inert gas atmosphere such as nitrogen.

After carrying out the copolymerization reaction, the copolymer can be isolated from the reaction solution by a known method such as reprecipitation or solvent distillation. The unreacted monomer can be removed from the obtained copolymer by a known method such as repeated reprecipitation, membrane separation, chromatography or extraction. The thus obtained copolymer has a weight average molecular weight of 1,000 to 1,000 depending on the selection of polymerization conditions.
It can be controlled in the range of 10,000 (molecular weight by gel filtration chromatography (polystyrene conversion)). The copolymer used in the hair styling composition of the present invention preferably has a weight average molecular weight of 10,000 to 500,000,
Those having a weight average molecular weight of 20,000 to 200,000 are particularly preferable.

As the copolymer, the one obtained as described above can be used as it is, but one obtained by neutralizing the tertiary amino group with an inorganic acid or an organic acid can also be used. . Here, examples of the inorganic acid that can be used for neutralization include hydrochloric acid, sulfuric acid, phosphoric acid, and the like, and examples of the organic acid include acetic acid, glycolic acid, lactic acid, citric acid, maleic acid, malic acid, and the like. You can

These copolymers may be used either individually or in combination of two or more, and preferably 0.01 to 2 in total composition.
It is preferable to add 0% by weight (hereinafter, simply referred to as%), and particularly preferably 0.5 to 10%, and more preferably 0.5 to 5% because an appropriate set holding force can be obtained.

As the component (B) used in the present invention,
It is not particularly limited as long as it is a resin having a weight average molecular weight of 50,000 or more and a melting point of 40 to 100 ° C., and may be produced by any method, for example, active hydrogen as described in JP-B-6-27053. Use of a product obtained by reacting a polyalkylene oxide compound obtained by addition-polymerizing an alkylene oxide containing ethylene oxide with an organic compound having two groups, and a polyvalent carboxylic acid, its anhydride or its lower alkyl ester, or diisocyanate. You can

In the polyalkylene oxide compound used here, examples of the organic compound having two active hydrogen groups include ethylene glycol, propylene glycol, polyethylene glycol, polypropylene glycol, polytetramethylene glycol, 1,6-hexanediol, Aniline and the like can be used.

The alkylene oxide containing ethylene oxide which is subjected to addition polymerization with an organic compound having two active hydrogen groups is ethylene oxide alone or an alkylene oxide containing ethylene oxide. Alkylene oxides other than ethylene oxide have 3 to 30 carbon atoms, and for example, propylene oxide, butylene oxide, styrene oxide, α-olefin epoxide or glycidyl ethers can be used.

Here, the content of the alkylene oxide having 3 to 30 carbon atoms is arbitrary, but the content of ethylene oxide is preferably 70 to 100% based on the total alkylene oxide.

The addition polymerization of alkylene oxide can be carried out by a known method, and the addition method of ethylene oxide and other alkylene oxide is by mixing,
What is polymerized in a block can be appropriately selected.

The weight average molecular weight of the resulting polyalkylene oxide compound is preferably 100 or more, and particularly preferably 2000 or more.

Next, this polyalkylene oxide compound is reacted with a polyvalent carboxylic acid, its anhydride or its lower alkyl ester, or diisocyanate.

Examples of the polycarboxylic acid include phthalic acid, isophthalic acid, terephthalic acid, sebacic acid, dimer acid and pyromellitic acid. As the anhydride of the polycarboxylic acid, each of the anhydrides of the above-mentioned carboxylic acids can be used.

As the lower alkyl ester, monovalent or polyvalent methyl ester, ethyl ester or the like can be used. For example, dimethyl terephthalate, dimethyl phthalate, dimethyl isophthalate, diethyl sebacate, tetramethyl pyromellitic acid, etc. are used. be able to.

The raw material ratio in the polymerization reaction of the polyalkylene oxide compound and the polycarboxylic acid, its anhydride or its lower alkyl ester may be any as long as the weight average molecular weight of the polymerization reaction product is 50,000 or more. It may be a percentage. The polymerization reaction is 120 to 250 ° C., 10 ⁻⁴ to 1
It is preferable to carry out at 0 Torr.

As the diisocyanate, tolylene diisocyanate, diphenylmethane diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, xylylene diisocyanate, 4,4 '
-Methylene-bis- (cyclohexyl isocyanate)
Etc. can be used.

The urethanization reaction of the polyalkylene oxide compound and the diisocyanate is not particularly limited. For example, NCO / OH equivalent ratio is mixed in the range of 0.5 to 1.5, and 8
It is preferable to carry out at 0 to 150 ° C. for 1 to 5 hours.

As the component (B) in the present invention, a polyesterification reaction product of polyethylene glycol and dimethyl terephthalate, a condensation product of polyethylene glycol with pyromellitic dianhydride, an ethylene oxide adduct of polybutylene glycol and terephthalic acid as a binder are used. It is particularly preferable to use a polyesterified product or a urethane compound of a block addition polymer of bisphenol A, ethylene oxide or propylene oxide and hexamethylene diisocyanate.

The reaction product of the component (B) has a weight average molecular weight of 50,000 or more, preferably 100,000 to 300,000. If it is less than 50,000, the film strength is weak and the settability is poor. The melting point is 40 to 100 ° C, preferably 50 to 80 ° C.
If the temperature is lower than 40 ° C, a sticky feeling remains, and even if the temperature exceeds 100 ° C, it exceeds the temperature range used by the dryer, so it is meaningless.

The resin of the component (B) can be used alone or in combination of two or more kinds, and 0.01 to 2 in the total composition.
It is preferable to add 0%, particularly 0.5 to 10%, and more preferably 1 to 5% because good thermal response and touch can be obtained.

Further, the mixing ratio of the component (A) and the component (B) is preferably 1/10 to 3/1 by weight, particularly 1/5.
It is preferable for it to be 2/1 because good thermal response and setting force can be obtained.

In addition to the above components, the hair styling composition of the present invention may contain a surfactant, and any anionic, nonionic, amphoteric or cationic surfactant may be used. . Among these, nonionic surfactants are particularly preferable, and specifically, for example, polyoxyalkylene addition such as polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxypropylene cetyl ether, and polyoxyethylene oxypropylene cetyl ether. Examples include alkyl ethers. When these surfactants are added, it is preferable to add 0.01 to 5% of the total composition.

Further, the hair styling composition of the present invention contains the ingredients generally used as a raw material for cosmetics, such as squalane,
Glycerides such as straight or branched chain hydrocarbon oils having 8 to 40 carbon atoms such as liquid paraffin, castor oil, cocoa oil, mink oil, avocado oil, olive oil and the like; beeswax,
Wax wax such as whale wax, lanolin and carnauba wax; alcohols such as cetyl alcohol, oleyl alcohol, hexadecyl alcohol, lauryl alcohol, stearyl alcohol, isostearyl alcohol, 2-octyldodecanol, propylene glycol, polypropylene glycol, glycerin and ethanol Esters of isopropyl myristate, isopropyl laurate, hexyl laurate, cetyl lactate, propylene glycol monostearate, oleyl oleate, hexadecyl 2-ethylhexanoate, octyldodecyl myristate, etc .; dimethylpolysiloxane, methylphenylpolysiloxane , Polyether modified silicone oil, amino modified silicone oil, alkyl modified silicone oil, etc. A polysaccharide thickener such as carrageenan, locust bean gum, hydroxyethyl cellulose, xanthan gum; parabens such as methylparaben and ethylparaben; other fragrances, pigments, antioxidants, ultraviolet absorbers, plant extracts, etc. It can be appropriately blended within a range that does not impair the effect.

The hair styling composition of the present invention can be manufactured by a conventional method. Further, it may be in the form of aerosol or non-aerosol, and may be in the form of hair foam, hair gel, hair spray, set lotion, hair cream, pump mist or the like.

When the hair styling composition of the present invention is used as an aerosol, it may be enclosed in a pressure-resistant airtight container together with a propellant. The propellant used here is a liquefied gas or a compressed gas which is usually used. Etc., and specifically, dimethyl ether, liquefied petroleum gas, nitrogen gas, carbon dioxide gas and the like can be mentioned. Of these propellants, liquefied petroleum gas and dimethyl ether are preferable in the case of forming a foam-like product, and these are contained in an amount of 3 to 30%, particularly 5 to 5% in the total composition.
It is preferable to add 20%.

When a liquefied gas such as dimethyl ether or liquefied petroleum gas is used in the case of producing a spray product, these are contained in an amount of 10 to 70%, particularly 20 to 6 in the total composition.
It is preferable to add 0%, and when a compressed gas such as nitrogen gas or carbon dioxide is used, 0.01% of them should be added to the total composition.
It is preferable to add -5%, especially 0.1-3%.

[0049]

EFFECTS OF THE INVENTION The hair styling composition of the present invention is excellent in the easiness of making a hairstyle and holding power, and can suppress the dryness and the dusting of white powder.

[0050]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.

Reference Example 1 Synthesis of (meth) acrylic copolymer 1: 100 parts by weight of ethanol was placed in a four-necked flask equipped with a reflux condenser, a dropping funnel, a thermometer, a nitrogen gas introducing tube and a stirrer. , Heated to 60 ° C. On the other hand, 100 parts by weight of a monomer mixture consisting of 52% of Nt-butylacrylamide, 18% of ethyl acrylate, 20% of N, N-dimethylaminopropylacrylamide and 10% of methoxypolyethylene glycol (PEG400) methacrylate, 200 parts by weight of ethanol and further. A monomer solution was prepared from water as needed. In addition, 2,2'-as a polymerization initiator
Azobis- (2,4-dimethylvaleronitrile) was dissolved in 33 parts by weight of ethanol so as to be 0.26 mol% with respect to all monomers to prepare a polymerization initiator solution. Then, the monomer solution and the polymerization initiator solution are mixed with the above-mentioned 60
At the same time, the mixture was dropped into ethanol heated to 0 ° C. under a nitrogen atmosphere for 1.5 hours, and the reaction was continued at 60 ° C. for 8 hours. Then, it is purified by reprecipitation with water,
It was vacuum dried at 20 ° C. and 20 mmHg for 12 hours. As a result, a copolymer 1 having an average molecular weight of 104300 (GPC in a tetrahydrofuran solution: converted to polystyrene) was obtained.

Reference Example 2 Synthesis of (meth) acrylic copolymer 2: The monomer mixture was Nt-butylacrylamide 65%, n-butylacrylate 15%, N, N-diethylaminoethylmethacrylate 10% and methoxypolyethyleneglycol. (PEG400) methacrylate except 10%,
A copolymer 2 was obtained according to the same method as in Reference Example 1.

Reference Example 3 Synthesis of (meth) acrylic copolymer 3: The monomer mixture was made up of 55% Nt-butylacrylamide, 25% ethyl acrylate, 10% N, N-diethylaminoethyl methacrylate and 2-hydroxyethyl methacrylate. Copolymer 3 was obtained in the same manner as in Reference Example 1 except that the content was changed to 10%.

Reference Example 4 Synthesis of (meth) acrylic copolymer 4: The monomer mixture was 52% Nt-butylacrylamide, 24% n-butylacrylate, 14% N, N-dimethylaminopropylacrylamide and 2- Copolymer 4 was obtained in the same manner as in Reference Example 1, except that hydroxyethyl methacrylate was 10%.

Examples 1 and 2 A hair styling composition (pump type hair spray) having the composition shown in Table 1 was produced by a conventional method. For the composition obtained,
The easiness of making the hairstyle, the holding power of the hairstyle, the lack of dryness, and the occurrence of flaking were evaluated. The results are shown in Table 1.

[Evaluation Method] Sensory evaluation was carried out by the following method by 10 professional female panels. A human head model (wig) with hair is washed with standard shampoo and then watered with a towel. Constant temperature, constant humidity (20 ℃, 65% RH)
Below, the evaluation sample and the control product shown in Table 1 are sprayed on the right and left sides of the wig, respectively, to blow-dry the hair. At this time, the ease of making a hairstyle, the lack of dryness after styling, and the occurrence of flaking were evaluated. The wig treated as described above was allowed to stand under high humidity (20 ° C., 98% RH) to evaluate the holding power of the hairstyle. The evaluation was based on the case where the control product was treated.

(Ease of making hairstyle) ○: 7 or more people said that it was easier to make than the control. Δ: 4 to 6 people said that it was easier to make than the control. X: 0 to 3 people said that it was easier to make than the control.

(No dryness) ◯: 7 or more persons were determined to have no dryness as compared with the control. Δ: 4 to 6 people were determined to be less dry than the control. X: 0 to 3 people were found to be less dry than the control.

(Occurrence of Flaking) ∘: 7 people said that flaking did not occur as compared with the control.
More than a name. △: 4 people said that flaking did not occur compared to the control
~ 6 people. X: 0 for those who did not experience flaking compared to the control
~ 3 people.

(Style-retaining power) O: 7 or more persons were found to have style-retaining power as compared with the control. Δ: 4 to 6 people were found to have style retention compared to the control
Name. X: 0 to 3 people were found to have style retention compared to the control
Name.

[0061]

[Table 1]

Example 3 A pump-type hair spray composition having the following composition was produced by a conventional method.

[Table 2] (Component) (%) High molecular weight compound ^{* 3} (Molecular weight 120,000, melting point 56 ° C) 0.5 Copolymer 2 1.0 Propylene glycol 0.5 Distearyldimethylammonium chloride 0.2 Lactic acid (90 %) 0.02 Ethanol 10.0 Purified water Balance 100.0 * 3 Paogen EP-15 (manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.)

Example 4 A hair foam agent having the composition shown below was produced by a conventional method.

[Table 3] (Components) (%) High molecular weight compound ^{* 4} (Molecular weight 600,000 to 800,000, melting point 66 ° C) 0.5 Copolymer 3 1.0 Polyoxyethylene (23E.O.) lauryl ether ^{* 5} 0.5 Polyoxyethylene (30E.O.) hexadecyl ether 0.5 Stearyl trimethyl ammonium chloride 0.2 Polyethylene glycol distearate (250E.O.) 0.3 Lactic acid (90%) 0.05 Ethanol 5.0 Purified water Balance propellant (LPG 4.0 kg / cm ² , 20 ° C) 10.0 100.0 * 4 Alcox E-45 (manufactured by Meisei Chemical Co., Ltd.) * 5 Emulgen 123P (manufactured by Kao)

Example 5 A hair foam agent having the composition shown below was produced by a conventional method.

[Table 4] (Component) (%) High molecular weight compound ^{* 6} (Molecular weight 120,000, melting point 56 ° C) 5.0 Copolymer 4 1.0 Polyoxyethylene alkyl ether ^{* 7} 0.5 Distearyldimethylammonium chloride 0 1 Highly polymerized silicone / light liquid isoparaffin mixture ^{* 8} 0.5 Phosphoric acid (75%) 0.01 Propylene glycol 0.2 Ethanol 10.0 Purified water balance 100.0 * 6 Paogen EP-15 (Daiichi Kogyo Seiyaku Co., Ltd.) * 7 Softanol 90 (Nippon Shokubai) * 8 BY25-320 (Toray Dow Corning Silicone)

Example 6 A hair spray composition having the following composition was produced by a conventional method.

[Table 5] (Component) (%) High molecular weight compound ^{* 9} (Molecular weight 120,000, melting point 56 ° C) 1.0 Copolymer 4 2.0 PEG600 1.0 Stearyltrimethylammonium chloride 0.1 Perfume 0.1 Phosphorus Acid (75%) 0.02 Ethanol 15.0 Purified water Balance propellant (DME) 40.0 100.0 * 9 Paogen PP-15 (Daiichi Kogyo Seiyaku Co., Ltd.)

Example 7 A hair lotion having the composition shown below was produced by a conventional method.

[Table 6] (Component) (%) High molecular weight compound ^{* 10} (molecular weight 600,000 to 800,000, melting point 60 ° C) 2.0 Copolymer 1 1.0 α-monoisostearyl glyceryl ether 0.2 Polyoxyethylene (23E.O.) Lauryl ether ^{* 11} 0.1 Glycerin 0.3 Lactic acid (90%) 0.02 Perfume 0.1 Ethanol 5.0 Purified water Balance 100.0 * 10 Alcox E-45 (Meisei Chemical Industry) * 11 Emulgen 123P (made by Kao)

For the compositions of Examples 3-7, Example 1
When each of the compositions was evaluated in the same manner as above, all of the compositions were evaluated as “◯” for the ease of making a hairstyle, the holding power, the lack of dryness, and the occurrence of flaking.

Claims (3)

[Claims] 1. The following components (A) and (B): (A) a copolymer obtained from the monomers (a) to (d), (a) the following formula (1): (In the formula, R ¹ is hydrogen or a methyl group, R ² and R ³ are independently hydrogen or an alkyl group having 4 to 12 carbon atoms, or R ² and R ³ are rings formed together with adjacent nitrogen atoms. 30 to 80% by weight of an acrylamide-based or methacrylamide-based monomer represented by the formula: (b) the following formula (2): (In the formula, R ¹ is hydrogen or a methyl group, and R ⁴ has 1 to 4 carbon atoms.
5 to 45% by weight of an acrylic acid ester-based or methacrylic acid ester-based monomer represented by the formula (3) (In the formula, R ¹ is hydrogen or a methyl group, R ⁵ is a carbon number of 2 to 3
Alkylene group, R ⁶ and R ⁷ independently represent a methyl group or an ethyl group, and a represents 0 or 1), and an acrylic ester-based or methacrylic acid-based monomer having a tertiary amino group represented by / Or acrylamide or methacrylamide monomer 2 to 30
% By weight; and (d) the following formula (4): (In the formula, R ¹ is hydrogen or a methyl group, R ⁸ and R ⁹ are independently an alkylene group having 2 to 4 carbon atoms, R ¹⁰ is a hydrogen or a methyl group, and b and c are independently an integer of 0 to 50. Where b and c are not 0 at the same time) 0 to 30% by weight of an acrylic acid ester-based or methacrylic acid ester-based monomer; (B) a resin having a weight average molecular weight of 50,000 or more and a melting point of 40 to 100 ° C. A hair styling composition comprising: 2. A polyalkylene oxide compound obtained by addition-polymerizing an alkylene oxide containing ethylene oxide to an organic compound having two active hydrogens as component (B), a polyvalent carboxylic acid, an anhydride thereof or a lower alkyl ester thereof, or a diisocyanate. The hair styling composition according to claim 1, which is a reaction product of 3. The weight ratio of component (A) and component (B) is 1 /.
The hair styling composition according to claim 1 or 2, which is 10 to 3/1.