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JP3563549B2 - Hair cosmetics - Google Patents
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JP3563549B2 - Hair cosmetics - Google Patents

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Publication number
JP3563549B2
JP3563549B2 JP31080796A JP31080796A JP3563549B2 JP 3563549 B2 JP3563549 B2 JP 3563549B2 JP 31080796 A JP31080796 A JP 31080796A JP 31080796 A JP31080796 A JP 31080796A JP 3563549 B2 JP3563549 B2 JP 3563549B2
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Prior art keywords
meth
formula
hair
group
carbon atoms
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JP31080796A
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Japanese (ja)
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JPH10152423A (en
Inventor
隆司 伊藤
路子 浅見
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Kao Corp
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Kao Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、毛髪化粧料に関し、更に詳細にはセット性に優れるとともにべたつきの少ない毛髪化粧料に関する。
【0002】
【従来の技術及び発明が解決しようとする課題】
従来、ヘアスタイリングに用いられるヘアスプレー、ヘアフォーム、ヘアミスト、ヘアジェル等の毛髪化粧料には、セット剤として皮膜形成性の各種セット用ポリマーが配合されている。しかし、これらのセット用ポリマーにより形成された毛髪上の皮膜は、低湿度において硬くもろいという欠点があり、振動や接触によりセットが容易に崩れてしまうという問題があった。そこで、一般に毛髪セット剤には、セット用ポリマーに加え、例えば、ポリエチレングリコール、エステル油、長鎖アルカノールアミド、シリコーン油等の皮膜を柔軟化し、低湿度でも毛髪に高いセット性を与える可塑剤が配合されている。例えば、毛髪固定用高分子化合物に、アルコール脂肪酸エステルや脂肪酸ジエタノールアミドを配合した例(特開平7−145023号公報、特開平8−157341号公報)がある。しかし、これらの可塑剤を皮膜の柔軟効果に必要な量配合すると、毛髪がべたつくという問題点があり、低湿度におけるセット性の向上と、べたつき等の感触改善の両方の性能を実現することは困難であった。
【0003】
【課題を解決するための手段】
かかる実情において、本発明者らは鋭意研究を行った結果、毛髪セット用ポリマーにN−アシルモノアルカノールアミンを組合せて用いれば、低湿度におけるセット性に優れるとともに、べたつきの少ない毛髪化粧料が得られることを見出し、本発明を完成した。
【0004】
すなわち、本発明は、(A)毛髪セット用ポリマー、及び
(B)次式(1)
【0005】
【化2】

Figure 0003563549
【0006】
(式中、Rは水酸基が置換していてもよい炭素数1〜3のアルキル基を示し、nは1〜4の数を示す)
で表わされるN−アシルモノアルカノールアミン
を含有することを特徴とする毛髪化粧料を提供するものである。
【0007】
【発明の実施の形態】
本発明で用いられる成分(A)の毛髪セット用ポリマーとしては、通常の毛髪化粧料に用いられ、毛髪上に皮膜を形成してセット性を有するものであれば特に制限されず、例えば下記(1)〜(4)に示すものが挙げられる。
【0008】
(1)ポリビニルピロリドン系高分子化合物
この例としてはポリビニルピロリドン、ポリビニルピロリドン/酢酸ビニル共重合体等が挙げられる。前者の市販品としては、ルビスコールK12、ルビスコールK30(以上BASF社製)、PVP K15、PVP K30(以上ISP社製)などが挙げられる。また後者の市販品としては、ルビスコールVA28、ルビスコールVA73(以上BASF社製)などが挙げられる。
【0009】
(2)ビニルエーテル系高分子化合物
この例としては、メチルビニルエーテル/マレイン酸アルキルハーフエステル共重合体等が挙げられ、その市販品としては、ガントレッツES−225、ガントレッツES−425、ガントレッツSP−215(以上ISP社製)などが挙げられる。
【0010】
(3)酸性アクリル系高分子化合物
この例としては、(メタ)アクリル酸/(メタ)アクリル酸エステル共重合体、(メタ)アクリル酸/(メタ)アクリル酸エステル/アルキル(メタ)アクリルアミド共重合体等が挙げられる。前者の市販品としては、プラスサイズL53P(互応化学社製)、ダイヤホールド(三菱化学社製)、アマホールド DR−25(アマコール社製)などが挙げられる。
また、後者の市販品としては、ウルトラホールド8(BASF社製)などが挙げられる。
【0011】
(4)塩基性アクリル系高分子化合物
この例としては、(メタ)アクリルアミド/(メタ)アクリル酸エステル系多元共重合体等が挙げられる。より具体的には、次の(a)、(b)、(c)及び(d)のモノマーの多元共重合体が挙げられる。
【0012】
(a)下記式(2)
【0013】
【化3】
Figure 0003563549
【0014】
(式中、R2 は水素原子又はメチルを、R3 及びR4 は同一又は異なって水素原子又は炭素数4〜12のアルキル基を示すが、R3 とR4 が共に水素原子となることはない)
で表わされる(メタ)アクリルアミド系モノマー 30〜80重量%:
【0015】
(b)下記式(3)
【0016】
【化4】
Figure 0003563549
【0017】
(式中、Rは前記と同じものを示し、Xは−N(R)R又は−ORを示し、ここでR及びRは同一又は異なって水素原子又は炭素数1〜3のアルキル基を示し、Rは炭素数1〜4のアルキル基を示す)
で表わされる(メタ)アクリルアミド系モノマー又は(メタ)アクリル酸エステル系モノマー 2〜50重量%:
(c)下記式(4)
【0018】
【化5】
Figure 0003563549
【0019】
(式中、Rは前記と同じものを示し、Rは炭素数2又は3のアルキレン基を、R及びR10は同一又は異なってメチル基又はエチル基を示す。aは0又は1の数を示す)
で表わされる(メタ)アクリル酸エステル系モノマー又は(メタ)アクリルアミド系モノマー 0〜30重量%:
(d)下記式(5)
【0020】
【化6】
Figure 0003563549
【0021】
(式中、Rは前記と同じものを示し、R11及びR12は同一又は異なって炭素数2〜4のアルキレン基を、R13は水素原子、炭素数1〜10のアルキル基又はフェニル基を示す。b及びcはそれぞれ0〜50の数を示すが、b及びcが同時に0となることはない)
で表わされる(メタ)アクリル酸エステル系モノマー 0〜40重量%。
【0022】
上記の多元共重合体は、上記(a)、(b)、(c)及び(d)のモノマーの組合せを、ラジカル重合開始剤の存在下、公知の重合法、すなわちバルク重合法、溶液重合法、懸濁重合法、乳化重合法等により共重合させて製造できるが、特に溶液重合法により共重合させるのが好ましい。
【0023】
これらの毛髪セット用ポリマーのうち、特にポリビニルピロリドン/酢酸ビニ共重合体、メチルビニルエーテル/マレイン酸ハーフエステル共重合体、(メタ)アクリル酸/(メタ)アクリル酸エステル/アルキル(メタ)アクリルアミド共重合体、(メタ)アクリルアミド/(メタ)アクリルエステル系多元共重合体が好ましい。
【0024】
成分(A)の毛髪セット用ポリマーは、1種又は2種以上を組合せて用いることができ、全組成中に0.5〜20重量%(以下、単に%で示す)配合するのが好ましく、特に1.0〜10%配合すると、良好なセット力が得られるので好ましい。
【0025】
本発明で用いられる成分(B)は、前記式(1)で表わされるN−アシルモノアルカノールアミンである。式中Rで示される水酸基が置換していてもよい炭素数1〜3のアルキル基としては、メチル基、エチル基、プロピル基、1−ヒドロキシメチル基、2−ヒドロキシエチル基、1−ヒドロキシプロピル基、1−ヒドロキシエチル基等が挙げられる。nとしては、2が好ましい。
【0026】
好ましい、N−アシルモノアルカノールアミンとしては、R=メチル基、n=2であるN−アセチルモノエタノールアミン、R=1−ヒドロキシエチル基、n=2であるN−2−ヒドロキシプロピオニルモノエタノールアミンが挙げられる。このN−アシルモノアルカノールアミンのRの炭素数が1〜3であると、少量で、セット用ポリマーによる皮膜が形成された毛髪の感触を改善することができる。そのため、セット後毛髪がべたつきを生じることもない。
【0027】
N−アシルモノアルカノールアミンは1種又は2種以上を組合せて用いることができ、全組成中に0.05〜4%、好ましくは0.1〜2%配合すると、低湿度で皮膜がもろくなることもなく、良好なセット力が得られ、更にべたつきも生じないので好ましい。
【0028】
成分(A)及び(B)としては、(メタ)アクリルアミド/(メタ)アクリルエステル系多元共重合体とR=メチル基でn=2であるN−アセチルモノエタノールアミンとの組合せが好ましく、更に詳しくはR=メチル基でn=2であるN−アセチルモノエタノールアミンとN−t−ブチルアクリルアミド、N,N−ジメチルアクリルアミド、N,N−ジメチルアミノプロピルアクリルアミド、メトキシポリエチレングリコール(PEG400)メタクリレートの四元共重合体との組合せが特に好ましい。
【0029】
また、成分(A)及び(B)の重量比は(A)/(B)=99/1〜80/20であることが好ましく、特に95/5〜85/15であると、優れたセット性と感触を両立でき好ましい。
【0030】
本発明の毛髪化粧料には、上記以外の成分として、水、炭素数1〜6のアルコール等の溶剤;通常毛髪化粧料に適用されるステアリルトリメチルアンモニウム塩等のカチオン界面活性剤、グリセリン脂肪酸エステル、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンポリオキシプロピレンアルキルエーテル等のノニオン界面活性剤、アルキル硫酸塩、ポリオキシエチレンアルキルエーテル硫酸塩等のアニオン界面活性剤、アルキルジメチルアミノ酢酸ベタイン等の両性界面活性剤;2−メチル−2−アミノ−1−プロパノール等のポリマー中和剤;ジメチルポリシロキサン、ポリエーテル変性シリコーン、アミノ変性シリコーン、スクワラン、高級脂肪酸及び/又は高級アルコールのエステル油等の感触向上剤;グリセリン、1,3−ブチレングリコール、プロピレングリコール、ジプロピレングリコール、ポリエチレングリコール、ポリグリセリン、ソルビトール等の多価アルコール;紫外線吸収剤;酸化防止剤;トリクロサン、トリクロロカルバン等の殺菌剤;グリチルリチン酸ジカリウム、酢酸トコフェロール等の抗炎症剤;ジンクピリチオン、オクトピロックス等の抗ふけ剤;メチルパラベン、ブチルパラベン等の防腐剤;乳酸、クエン酸等のpH調整剤;香料;色素等を本発明の効果を損なわない範囲において任意に添加することができる。
【0031】
本発明の毛髪化粧料は、常法に従って製造することができ、各種剤型、例えばスプレー、ミスト、ゲル、ローション、トニック、ブロー剤、クリーム、後発泡性ゲル等に調製することができる。特に、操作性の点から、本発明の毛髪化粧料をエアゾール化粧料として使用することが好ましい。この場合には、毛髪化粧料を公知のエアゾール容器に噴射剤とともに充填する。噴射剤としては、エアゾール化する機能を有するものであれば何を用いても良いが、例えば、プロパン、イソブタン、ブタン又はそれらの混合物(液化石油ガス)等の低級飽和炭化水素、ジメチルエーテル等のエーテル類、窒素ガス、炭酸ガス、亜酸化窒素ガス等を用いることができる。これらは、1種又は2種以上を組合せて用いることができ、全組成中に70%以下であればよく、特に、噴射剤が液化石油ガス及び/又はジメチルエーテルであるヘアスプレーの場合には、全組成中に15〜70%、好ましくは20〜60%、特に好ましくは40〜60%配合され、ヘアフォームの場合には、1〜30%、好ましくは1〜20%配合される。ガス圧としては、20℃で1.5〜7.0kg/cmであることが好ましい。
【0032】
【発明の効果】
本発明の毛髪化粧料は、低湿度におけるセット性に優れるとともにべたつきのないものであり、特にヘアスプレー等の毛髪セット剤として好適である。
【0033】
【実施例】
次に、実施例を挙げて本発明を更に説明するが、本発明はこれら実施例に限定されるものではない。
なお、以下の実施例中、実施例1の本発明品1〜3、実施例2〜4及び6〜8は、特許請求の範囲外の参考例である。
【0034】
合成例1
還流冷却器、滴下ロート、温度計、窒素ガス導入管及び攪拌装置を取り付けた四つ口フラスコ内にエタノール100部を入れ、60℃まで加熱した。その後、N−tert−ブチルアクリルアミド60重量%、N,N−ジメチルアクリルアミド25重量%、N,N−ジメチルアミノプロピルアクリルアミド5重量%及びメトキシポリエチレングリコール(PEG400)メタクリレート10重量%からなるモノマー混合物100部及びエタノール200部(必要に応じて水も添加する)から成るモノマー溶液と開始剤(2,2′−アゾビス−(2,4−ジメチルバレロニトリル)を全モノマーに対し0.2モル%)をエタノール33部に溶かした開始剤溶液とを、1.5時間かけて窒素雰囲気下にて同時に滴下し、更に8時間60℃を維持し、反応させた。重合後、ポリマーのエタノール溶液をn−ヘキサン中に注いで再沈精製し、60℃、20mmHgにて12時間真空乾燥した。
【0035】
得られたポリマーは白色の固体であった。その重量平均分子量(ジメチルホルムアミド(DMF)溶液でのGPC:ポリエチレングリコール(PEG)換算)は、118,900であった。
【0036】
実施例1
表1及び表2に示す組成のヘアスプレーを常法により製造し、これを使用したときのセット性、べたつきを評価した。結果を表1及び表2に示す。
【0037】
(評価方法)
(1)セット性:
長さ10cm、幅2cmの毛束を水で濡らし、タオルドライ後、直径4cmのロッドに巻いて自然乾燥させた。次に、20cmの距離からヘアスプレーをスプレーし、乾燥させた後、ロッドから毛束をはずした。これを恒温・恒湿箱(20℃、40%RH)中で、120回/分の割合で上下振動させ、2時間後振動を止めて、カールの延びを観察し、以下の基準で評価した。
【0038】
A:セットの持ちがたいへん良い。
B:セットの持ちが良い。
C:セットの持ちが普通。
D:セットの持ちが悪い。
【0039】
(2)べたつき
長さ20cm、幅5cmの乾燥した毛束に、20cmの距離から約2秒間スプレーし、乾燥させた。これを恒温・恒湿室(30℃、80%RH)で、専門パネラー10名が下記基準にて評価し、その平均点により判定した。
【0040】
(評価基準)
2:べたつかない。
1:ややべたつかない。
0:どちらとも言えない。
−1:ややべたつく。
−2:べたつく。
(判定基準)
A:平均点が1点以上。
B:平均点が0点以上1点未満。
C:平均点が−1点以上0点未満。
D:平均点が−1点未満。
【0041】
【表1】
Figure 0003563549
【0042】
【表2】
Figure 0003563549
【0043】
表1及び表2から明らかなように、毛髪セット用ポリマーにN−アシルモノアルカノールアミンを配合した本発明の毛髪化粧料は、N−アシルモノアルカノールアミンを配合しない場合に比べ、セット性が向上しかつ毛髪にべたつきを与えないものであり、またヤシ油脂肪酸ジエタノールアミドのような他の柔軟化剤を配合した場合に比べて毛髪の感触が顕著に改善された。
【0044】
実施例2
以下に示す組成のヘアミストを常法により製造した。
【0045】
【表3】
Figure 0003563549
【0046】
実施例3
以下に示す組成のヘアジェルを常法により製造した。
【0047】
【表4】
Figure 0003563549
【0048】
実施例4
以下に示す組成のヘアフォームを常法により製造した。
【0049】
【表5】
Figure 0003563549
【0050】
実施例5
以下に示す組成のヘアスプレーを常法により製造した。
【0051】
【表6】
Figure 0003563549
【0052】
実施例6
以下に示す組成のヘアスプレーを常法により製造した。
【0053】
【表7】
Figure 0003563549
【0054】
実施例7
以下に示す組成のヘアスプレーを常法により製造した。
【0055】
【表8】
Figure 0003563549
【0056】
実施例8
以下に示す組成のヘアスプレーを常法により製造した。
【0057】
【表9】
Figure 0003563549
【0058】
実施例2〜8の毛髪化粧料はいずれもべたつきがなく、低湿度でも高いセット性を有していた。[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a hair cosmetic, and more particularly, to a hair cosmetic having excellent setting properties and low stickiness.
[0002]
Problems to be solved by the prior art and the invention
2. Description of the Related Art Conventionally, in hair cosmetics such as hair spray, hair foam, hair mist, and hair gel used for hair styling, various film-forming setting polymers are blended as setting agents. However, the film formed on the hair formed by these setting polymers has a drawback of being hard and brittle at low humidity, and has a problem that the set is easily broken by vibration or contact. Therefore, in general, a hair setting agent includes, in addition to a setting polymer, a plasticizer that softens a film of, for example, polyethylene glycol, ester oil, long-chain alkanolamide, silicone oil, and gives high setting properties to hair even at low humidity. It is blended. For example, there is an example in which an alcohol fatty acid ester or a fatty acid diethanolamide is blended with a hair fixing polymer compound (Japanese Patent Application Laid-Open Nos. 7-145023 and 8-157341). However, if these plasticizers are blended in an amount necessary for the softening effect of the film, there is a problem that the hair becomes sticky, and it is not possible to realize both the performance of improving the setting property at low humidity and improving the feeling such as stickiness. It was difficult.
[0003]
[Means for Solving the Problems]
Under such circumstances, the present inventors have conducted intensive studies. As a result, when N-acylmonoalkanolamine is used in combination with a hair setting polymer, a hair cosmetic composition having excellent setting properties at low humidity and less stickiness is obtained. And found that the present invention was completed.
[0004]
That is, the present invention provides (A) a polymer for hair setting, and (B) the following formula (1)
[0005]
Embedded image
Figure 0003563549
[0006]
(Wherein, R 1 represents an alkyl group having 1 to 3 carbon atoms which may be substituted by a hydroxyl group, and n represents a number of 1 to 4)
A hair cosmetic comprising an N-acylmonoalkanolamine represented by the formula:
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
The hair setting polymer of the component (A) used in the present invention is not particularly limited as long as it is used in ordinary hair cosmetics and has a setting property by forming a film on the hair. 1) to (4) are exemplified.
[0008]
(1) Polyvinylpyrrolidone-based polymer compound Examples of this compound include polyvinylpyrrolidone and polyvinylpyrrolidone / vinyl acetate copolymer. Examples of the former commercially available products include Luviscol K12, Luviscol K30 (all manufactured by BASF), PVP K15, and PVP K30 (all manufactured by ISP). Examples of the latter commercially available products include Luviscol VA28 and Luviscol VA73 (all manufactured by BASF).
[0009]
(2) Vinyl ether polymer compound This example includes a methyl vinyl ether / alkyl maleate half ester copolymer and the like, and its commercial products include Gantrez ES-225, Gantrez ES-425, and Gantrez SP-215 ( ISP).
[0010]
(3) Acidic acrylic polymer compound Examples of this compound include (meth) acrylic acid / (meth) acrylic acid ester copolymer and (meth) acrylic acid / (meth) acrylic acid ester / alkyl (meth) acrylamide copolymer. Coalescence and the like. Examples of the former commercially available products include Plus Size L53P (manufactured by Goyo Kagaku Co., Ltd.), Diahold (manufactured by Mitsubishi Chemical Corporation), and Amahold DR-25 (manufactured by Amacol).
Examples of the latter commercial product include Ultra Hold 8 (manufactured by BASF).
[0011]
(4) Basic acrylic polymer compound Examples of this compound include (meth) acrylamide / (meth) acrylate-based multi-component copolymers. More specifically, a multi-component copolymer of the following monomers (a), (b), (c) and (d) can be mentioned.
[0012]
(A) The following equation (2)
[0013]
Embedded image
Figure 0003563549
[0014]
(In the formula, R 2 represents a hydrogen atom or a methyl group , R 3 and R 4 are the same or different and represent a hydrogen atom or an alkyl group having 4 to 12 carbon atoms, and both R 3 and R 4 are hydrogen atoms. Never)
(Meth) acrylamide monomer represented by the formula: 30 to 80% by weight:
[0015]
(B) The following equation (3)
[0016]
Embedded image
Figure 0003563549
[0017]
(Wherein, R 2 represents the same as described above, X represents —N (R 5 ) R 6 or —OR 7 , wherein R 5 and R 6 are the same or different and represent a hydrogen atom or a carbon atom of 1 to 3 represents an alkyl group, and R 7 represents an alkyl group having 1 to 4 carbon atoms)
(Meth) acrylamide monomer or (meth) acrylate monomer represented by the formula: 2 to 50% by weight:
(C) Formula (4) below
[0018]
Embedded image
Figure 0003563549
[0019]
(In the formula, R 2 is the same as described above, R 8 is an alkylene group having 2 or 3 carbon atoms, R 9 and R 10 are the same or different and represent a methyl group or an ethyl group, and a is 0 or 1. Indicates the number of
(Meth) acrylic acid ester monomer or (meth) acrylamide monomer represented by the formula: 0 to 30% by weight:
(D) The following equation (5)
[0020]
Embedded image
Figure 0003563549
[0021]
(Wherein, R 2 represents the same as described above, R 11 and R 12 are the same or different and represent an alkylene group having 2 to 4 carbon atoms, R 13 represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms or phenyl Represents a group, b and c each represent a number of 0 to 50, but b and c do not become 0 at the same time)
(Meth) acrylate monomer represented by the formula: 0 to 40% by weight.
[0022]
The above-mentioned multi-component copolymer is obtained by combining a combination of the above-mentioned monomers (a), (b), (c) and (d) in the presence of a radical polymerization initiator in a known polymerization method, that is, a bulk polymerization method, a solution weight. It can be produced by copolymerization according to a synthetic method, suspension polymerization method, emulsion polymerization method, etc., but it is particularly preferable to perform copolymerization by solution polymerization method.
[0023]
Among these hair setting polymers, in particular, polyvinyl pyrrolidone / vinyl acetate copolymer, methyl vinyl ether / maleic acid half ester copolymer, (meth) acrylic acid / (meth) acrylic ester / alkyl (meth) acrylamide copolymer A coalesced, (meth) acrylamide / (meth) acrylic ester-based multi-component copolymer is preferred.
[0024]
The polymer for hair setting of the component (A) can be used alone or in combination of two or more. It is preferable to mix 0.5 to 20% by weight (hereinafter simply referred to as%) in the whole composition, In particular, it is preferable to mix 1.0 to 10% because a good setting force can be obtained.
[0025]
The component (B) used in the present invention is an N-acylmonoalkanolamine represented by the above formula (1). In the formula, the alkyl group having 1 to 3 carbon atoms which may be substituted by the hydroxyl group represented by R 1 includes a methyl group, an ethyl group, a propyl group, a 1-hydroxymethyl group, a 2-hydroxyethyl group, a 1-hydroxy Examples thereof include a propyl group and a 1-hydroxyethyl group. n is preferably 2.
[0026]
Preferred N-acyl monoalkanolamines are N 1 -methyl group, N-acetyl monoethanolamine where n = 2, R 1 = 1-hydroxyethyl group, and N-2-hydroxypropionyl mono group where n = 2. Ethanolamine is mentioned. When the carbon number of R 1 of the N-acyl monoalkanolamine is 1 to 3, the feeling of hair having a coating film formed with the setting polymer can be improved with a small amount. Therefore, the hair does not become sticky after setting.
[0027]
N-acylmonoalkanolamines can be used alone or in combination of two or more. When incorporated in a total composition of 0.05 to 4%, preferably 0.1 to 2%, the film becomes brittle at low humidity. This is preferable because good setting force can be obtained without stickiness.
[0028]
As the components (A) and (B), a combination of a (meth) acrylamide / (meth) acryl ester-based multi-component copolymer and N-acetylmonoethanolamine in which R 1 = methyl group and n = 2 is preferable. more particularly R 1 = a methyl group is n = 2 n-acetyl monoethanolamine n-t-butylacrylamide, n, n-dimethylacrylamide, n, n-dimethylaminopropyl acrylamide, methoxy polyethylene glycol (PEG 400) Combinations of methacrylates with quaternary copolymers are particularly preferred.
[0029]
The weight ratio of the components (A) and (B) is preferably (A) / (B) = 99/1 to 80/20, and particularly preferably 95/5 to 85/15. It is preferable because both the properties and the feel are compatible.
[0030]
In the hair cosmetic composition of the present invention, as components other than the above, solvents such as water and alcohols having 1 to 6 carbon atoms; cationic surfactants such as stearyltrimethylammonium salt which are usually applied to hair cosmetics; glycerin fatty acid esters Nonionic surfactants such as polyoxyethylene alkyl ether and polyoxyethylene polyoxypropylene alkyl ether; anionic surfactants such as alkyl sulfate and polyoxyethylene alkyl ether sulfate; amphoteric surfactant such as betaine alkyldimethylaminoacetate Agent; polymer neutralizing agent such as 2-methyl-2-amino-1-propanol; feel-improving agent such as dimethylpolysiloxane, polyether-modified silicone, amino-modified silicone, squalane, higher fatty acid and / or ester oil of higher alcohol Glycerin, 1, Polyhydric alcohols such as butylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol, polyglycerin, and sorbitol; ultraviolet absorbers; antioxidants; bactericides such as triclosan and trichlorocarban; anti-bacterial agents such as dipotassium glycyrrhizinate and tocopherol acetate; Inflammatory agents; anti-dandruff agents such as zinc pyrithione and octopirox; preservatives such as methylparaben and butylparaben; pH adjusters such as lactic acid and citric acid; fragrances; coloring agents and the like are arbitrarily added as long as the effects of the present invention are not impaired. can do.
[0031]
The hair cosmetic of the present invention can be produced according to a conventional method, and can be prepared into various dosage forms, for example, spray, mist, gel, lotion, tonic, blowing agent, cream, post-foamable gel and the like. In particular, from the viewpoint of operability, it is preferable to use the hair cosmetic of the present invention as an aerosol cosmetic. In this case, the hair cosmetic is filled together with the propellant into a known aerosol container. Any propellant may be used as long as it has an aerosolizing function. For example, lower saturated hydrocarbons such as propane, isobutane, butane or a mixture thereof (liquefied petroleum gas), and ethers such as dimethyl ether may be used. , Nitrogen gas, carbon dioxide gas, nitrous oxide gas and the like can be used. These may be used alone or in combination of two or more, and may be 70% or less in the total composition. In particular, in the case of a hair spray in which the propellant is liquefied petroleum gas and / or dimethyl ether, In the total composition, 15 to 70%, preferably 20 to 60%, particularly preferably 40 to 60% is blended, and in the case of hair foam, 1 to 30%, preferably 1 to 20% is blended. The gas pressure is preferably 1.5 to 7.0 kg / cm 2 at 20 ° C.
[0032]
【The invention's effect】
The hair cosmetic composition of the present invention has excellent setting properties at low humidity and has no stickiness, and is particularly suitable as a hair setting agent such as a hair spray.
[0033]
【Example】
Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.
In addition, in the following examples, the present invention products 1 to 3 of Examples 1 and Examples 2 to 4 and 6 to 8 are reference examples outside the scope of the claims.
[0034]
Synthesis Example 1
100 parts of ethanol was placed in a four-necked flask equipped with a reflux condenser, a dropping funnel, a thermometer, a nitrogen gas inlet tube and a stirrer, and heated to 60 ° C. Thereafter, 100 parts of a monomer mixture consisting of 60% by weight of N-tert-butylacrylamide, 25% by weight of N, N-dimethylacrylamide, 5% by weight of N, N-dimethylaminopropylacrylamide and 10% by weight of methoxypolyethylene glycol (PEG400) methacrylate. And a monomer solution consisting of 200 parts of ethanol (and water, if necessary) and an initiator (2,2'-azobis- (2,4-dimethylvaleronitrile) at 0.2 mol% based on all monomers). An initiator solution dissolved in 33 parts of ethanol was simultaneously added dropwise over 1.5 hours under a nitrogen atmosphere, and the reaction was maintained at 60 ° C. for further 8 hours. After the polymerization, an ethanol solution of the polymer was poured into n-hexane for reprecipitation purification, followed by vacuum drying at 60 ° C. and 20 mmHg for 12 hours.
[0035]
The obtained polymer was a white solid. Its weight average molecular weight (GPC in dimethylformamide (DMF) solution: converted to polyethylene glycol (PEG)) was 118,900.
[0036]
Example 1
Hairsprays having the compositions shown in Tables 1 and 2 were produced by a conventional method, and settability and stickiness when using the hairsprays were evaluated. The results are shown in Tables 1 and 2.
[0037]
(Evaluation method)
(1) Setability:
A hair bundle having a length of 10 cm and a width of 2 cm was wetted with water, dried with a towel, wound around a rod having a diameter of 4 cm, and air-dried. Next, a hair spray was sprayed from a distance of 20 cm and dried, and then the hair bundle was removed from the rod. This was vibrated up and down at a rate of 120 times / minute in a constant temperature / humidity chamber (20 ° C., 40% RH), stopped vibration after 2 hours, observed the elongation of the curl, and evaluated according to the following criteria. .
[0038]
A: The set lasts very well.
B: The set lasts well.
C: The set is normal.
D: The set has poor durability.
[0039]
(2) A dry hair bundle having a sticky length of 20 cm and a width of 5 cm was sprayed from a distance of 20 cm for about 2 seconds and dried. This was evaluated in a constant temperature / humidity room (30 ° C., 80% RH) by 10 expert panelists according to the following criteria, and the average score was determined.
[0040]
(Evaluation criteria)
2: Not sticky.
1: Somewhat sticky.
0: Neither can be said.
-1: Slightly sticky.
-2: Sticky.
(Judgment criteria)
A: The average score is 1 or more.
B: The average score is from 0 to less than 1.
C: The average score is -1 or more and less than 0.
D: Average point is less than -1 point.
[0041]
[Table 1]
Figure 0003563549
[0042]
[Table 2]
Figure 0003563549
[0043]
As is clear from Tables 1 and 2, the hair cosmetic composition of the present invention in which the N-acylmonoalkanolamine is blended with the hair setting polymer has improved setting properties as compared with the case where the N-acylmonoalkanolamine is not blended. It does not give the hair stickiness and has a significantly improved hair feel as compared with the case where another softening agent such as coconut oil fatty acid diethanolamide is blended.
[0044]
Example 2
A hair mist having the following composition was produced by a conventional method.
[0045]
[Table 3]
Figure 0003563549
[0046]
Example 3
A hair gel having the following composition was produced by a conventional method.
[0047]
[Table 4]
Figure 0003563549
[0048]
Example 4
A hair foam having the following composition was produced by a conventional method.
[0049]
[Table 5]
Figure 0003563549
[0050]
Example 5
A hair spray having the following composition was produced by a conventional method.
[0051]
[Table 6]
Figure 0003563549
[0052]
Example 6
A hair spray having the following composition was produced by a conventional method.
[0053]
[Table 7]
Figure 0003563549
[0054]
Example 7
A hair spray having the following composition was produced by a conventional method.
[0055]
[Table 8]
Figure 0003563549
[0056]
Example 8
A hair spray having the following composition was produced by a conventional method.
[0057]
[Table 9]
Figure 0003563549
[0058]
Each of the hair cosmetics of Examples 2 to 8 had no stickiness and had high setting properties even at low humidity.

Claims (3)

(A)次のモノマー(a)、(b)、(c)及び(d)を共重合してなる(メタ)アクリルアミド/(メタ)アクリル酸エステル系多元共重合体
(a)下記式(2)
Figure 0003563549
(式中、R2 は水素原子又はメチルを、R3 及びR4 は同一又は異なって水素原子又は炭素数4〜12のアルキル基を示すが、R3 とR4 が共に水素原子となることはない)
で表わされる(メタ)アクリルアミド系モノマー 30〜80重量%:
(b)下記式(3)
Figure 0003563549
(式中、R2 は前記と同じものを示し、Xは-N(R5)R6又は-OR7を示し、ここでR5 及びR6 は同一又は異なって水素原子又は炭素数1〜3のアルキル基を示し、R7 は炭素数1〜4のアルキル基を示す)
で表わされる(メタ)アクリルアミド系モノマー又は(メタ)アクリル酸エステル系モノマー 2〜50重量%:
(c)下記式(4)
Figure 0003563549
(式中、R2 は前記と同じものを示し、R8 は炭素数2又は3のアルキレン基を、R9 及びR10は同一又は異なってメチル基又はエチル基を示す。aは0又は1の数を示す)
で表わされる(メタ)アクリル酸エステル系モノマー又は(メタ)アクリルアミド系モノマー 0〜30重量%:
(d)下記式(5)
Figure 0003563549
(式中、R2 は前記と同じものを示し、R11及びR12は同一又は異なって炭素数2〜4のアルキレン基を、R13は水素原子、炭素数1〜10のアルキル基又はフェニル基を示す。b及びcはそれぞれ0〜50の数を示すが、b及びcが同時に0となることはない)
で表わされる(メタ)アクリル酸エステル系モノマー 0〜40重量%、並びに
(B)次式(1)
Figure 0003563549
(式中、R1 は水酸基が置換していてもよい炭素数1〜3のアルキル基を示し、nは1〜4の数を示す)
で表わされるN−アシルモノアルカノールアミン
を含有する毛髪化粧料に、更に噴射剤を含有してなるエアゾール組成物
(A) (meth) acrylamide / (meth) acrylic acid ester-based multi-component copolymer (a) obtained by copolymerizing the following monomers (a), (b), (c) and (d): )
Figure 0003563549
(In the formula, R 2 represents a hydrogen atom or a methyl group , R 3 and R 4 are the same or different and represent a hydrogen atom or an alkyl group having 4 to 12 carbon atoms, and both R 3 and R 4 are hydrogen atoms. Never)
(Meth) acrylamide monomer represented by the formula: 30 to 80% by weight:
(B) The following equation (3)
Figure 0003563549
(Wherein, R 2 represents the same as described above, X represents —N (R 5 ) R 6 or —OR 7 , wherein R 5 and R 6 are the same or different and represent a hydrogen atom or a carbon atom having 1 to 1 carbon atoms. 3 represents an alkyl group, and R 7 represents an alkyl group having 1 to 4 carbon atoms)
(Meth) acrylamide monomer or (meth) acrylate monomer represented by the formula: 2 to 50% by weight:
(C) Formula (4) below
Figure 0003563549
(In the formula, R 2 is the same as described above, R 8 is an alkylene group having 2 or 3 carbon atoms, R 9 and R 10 are the same or different and represent a methyl group or an ethyl group, and a is 0 or 1. Indicates the number of
(Meth) acrylic acid ester monomer or (meth) acrylamide monomer represented by the formula: 0 to 30% by weight:
(D) The following equation (5)
Figure 0003563549
(In the formula, R 2 is the same as described above, R 11 and R 12 are the same or different and represent an alkylene group having 2 to 4 carbon atoms, R 13 represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms or phenyl. Represents a group, b and c each represent a number of 0 to 50, but b and c do not become 0 at the same time)
0 to 40% by weight of a (meth) acrylate monomer represented by the formula: (B)
Figure 0003563549
(Wherein, R 1 represents an alkyl group having 1 to 3 carbon atoms which may be substituted by a hydroxyl group, and n represents a number of 1 to 4)
An aerosol composition comprising a hair cosmetic containing an N-acylmonoalkanolamine represented by the formula: and a propellant .
成分(B)のN−アシルモノアルカノールアミンが、N−アセチルモノエタノールアミンである請求項1記載のエアゾール組成物The aerosol composition according to claim 1, wherein the N-acylmonoalkanolamine of the component (B) is N-acetylmonoethanolamine. 成分(A)及び成分(B)の重量比が、(A)/(B)=99/1〜80/20である請求項1又は2記載のエアゾール組成物The aerosol composition according to claim 1 or 2, wherein the weight ratio of the component (A) and the component (B) is (A) / (B) = 99/1 to 80/20.
JP31080796A 1996-11-21 1996-11-21 Hair cosmetics Expired - Fee Related JP3563549B2 (en)

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JP2010001287A (en) * 2008-05-21 2010-01-07 Kao Corp Hair-dressing method
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