JPH08252447A - Emulsifying agent comprising water-soluble amphiphilic polymeric electrolyte, emulsion composition and emulsion cosmetic blended with the agent - Google Patents
Emulsifying agent comprising water-soluble amphiphilic polymeric electrolyte, emulsion composition and emulsion cosmetic blended with the agentInfo
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- JPH08252447A JPH08252447A JP7087342A JP8734295A JPH08252447A JP H08252447 A JPH08252447 A JP H08252447A JP 7087342 A JP7087342 A JP 7087342A JP 8734295 A JP8734295 A JP 8734295A JP H08252447 A JPH08252447 A JP H08252447A
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- meth
- water
- emulsion
- soluble amphiphilic
- acrylamide
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- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水溶性両親媒性高分子
電解質からなる乳化剤に関する。FIELD OF THE INVENTION The present invention relates to an emulsifier comprising a water-soluble amphiphilic polyelectrolyte.
【０００２】また、本発明は、水溶性両親媒性高分子電
解質からなる乳化剤を配合した乳化組成物及び乳化化粧
料に関する。The present invention also relates to an emulsified composition and an emulsified cosmetic containing an emulsifier composed of a water-soluble amphiphilic polyelectrolyte.
【０００３】[0003]
【従来の技術】従来、乳化に関する数多くの研究がなさ
れ、多数の乳化剤が開発され、また乳化技術の進歩もめ
ざましく、非常に安定なエマルジョンがあらゆる工業で
広く利用されて来ている。2. Description of the Related Art Hitherto, many studies have been conducted on emulsification, many emulsifiers have been developed, and the progress of emulsification technology has been remarkable, and very stable emulsions have been widely used in all industries.
【０００４】しかしながら、その多くはポリオキシエチ
レン鎖を含有する非イオン界面活性剤、脂肪族石鹸で代
表されるアニオン界面活性剤、両性界面活性剤を乳化剤
として使用しており、特に一般消費者の間で安全性に不
安を抱くものが多い。However, most of them use a nonionic surfactant containing a polyoxyethylene chain, an anionic surfactant typified by an aliphatic soap, and an amphoteric surfactant as an emulsifier, and especially for general consumers. Many are worried about safety between them.
【０００５】従って、近年界面活性剤を用いずにアルキ
ル変性された水溶性高分子を利用して乳化組成物を得る
方法が検討されている。例えば、アルキル変性カルボキ
シビニルポリマーとしてＣＡＲＢＯＰＯＬ１３４２、Ｐ
ＥＭＵＬＥＮ ＴＲ−１、ＰＥＭＵＬＥＮ ＴＲ−２
（ＢＦＧｏｏｄｒｉｃｈ社）などの商品名で知られるも
のが挙げられる。Therefore, in recent years, a method for obtaining an emulsified composition by utilizing a water-soluble polymer which has been alkyl-modified without using a surfactant has been investigated. For example, as an alkyl-modified carboxyvinyl polymer, CARBOPOL 1342, P
EMULEN TR-1, PEMULEN TR-2
Examples thereof include those known by trade names such as (BF Goodrich).
【０００６】しかしながら、これらの高分子は乳化力が
相対的に小さく、乳化安定性が悪い。そこで安定性を向
上させるためには多量に配合することが必要であるが、
このような多量配合は低温での弾性化（ゲル化）が生
じ、乳化物の使用性を著しく損ねる。However, these polymers have relatively small emulsifying power and poor emulsion stability. Therefore, in order to improve stability, it is necessary to add a large amount,
Such a large amount of compound causes elasticity (gelation) at a low temperature and remarkably impairs usability of the emulsion.
【０００７】本発明者らは上記問題点を解決すべく鋭意
研究した結果、（メタ）アクリルアミドアルキルスルホ
ン酸とＮ−置換（メタ）アクリルアミドを共重合して得
られる水溶性両親媒性高分子電解質が、乳化安定性、安
全性、使用性の良好な乳化組成物を調製可能な乳化剤に
なり得ることを見出し、本発明を完成するに至った。As a result of intensive studies to solve the above problems, the present inventors have found that a water-soluble amphiphilic polymer electrolyte obtained by copolymerizing (meth) acrylamidoalkylsulfonic acid and N-substituted (meth) acrylamide However, they have found that they can be emulsifiers capable of preparing an emulsion composition having good emulsion stability, safety and usability, and have completed the present invention.
【０００８】すなわち、本発明は、（メタ）アクリルア
ミドアルキルスルホン酸及び／又はその塩と、Ｎ−置換
（メタ）アクリルアミドとを共重合して得られる、もし
くは得られた共重合体を更にアルカリ剤で中和して得ら
れる水溶性両親媒性高分子電解質からなることを特徴と
する乳化剤を提供するものである。That is, the present invention provides a copolymer obtained by copolymerizing (meth) acrylamidoalkylsulfonic acid and / or a salt thereof with N-substituted (meth) acrylamide, or a copolymer obtained as described above, which is further treated with an alkali agent. The present invention provides an emulsifier characterized by comprising a water-soluble amphipathic polymer electrolyte obtained by neutralization with.
【０００９】また、本発明は、上記水溶性両親媒性高分
子電解質の（メタ）アクリルアミドアルキルスルホン酸
単位が、少なくとも全体の１５重量％以上含有されるこ
とを特徴とする上記乳化剤を提供するものである。Further, the present invention provides the emulsifier, wherein the (meth) acrylamidoalkylsulfonic acid unit of the water-soluble amphiphilic polyelectrolyte is contained in an amount of at least 15% by weight based on the whole amount. Is.
【００１０】さらに、本発明は、前記水溶性両親媒性高
分子電解質のＮ−置換（メタ）アクリルアミド単位が、
少なくとも全体の４０重量％以上含有されることを特徴
とする上記乳化剤を提供するものである。Further, in the present invention, the N-substituted (meth) acrylamide unit of the water-soluble amphiphilic polyelectrolyte is
The present invention provides the above emulsifier, which is contained in at least 40% by weight of the whole.
【００１１】また、本発明は、上記乳化剤を配合したこ
とを特徴とする乳化組成物を提供するものである。The present invention also provides an emulsified composition containing the above emulsifier.
【００１２】さらに、本発明は、上記乳化剤の配合量が
０．１〜２０重量％であることを特徴とする上記乳化組
成物を提供するものである。Further, the present invention provides the above emulsified composition, wherein the amount of the emulsifier blended is 0.1 to 20% by weight.
【００１３】また、本発明は、上記乳化組成物を配合し
たことを特徴とする乳化化粧料を提供するものである。Further, the present invention provides an emulsified cosmetic characterized by containing the above-mentioned emulsified composition.
【００１４】以下、本発明の構成を詳述する。本発明で
用いる水溶性両親媒性高分子電解質は、（メタ）アクリ
ルアミドアルキルスルホン酸及び／又はその塩と、Ｎ−
置換（メタ）アクリルアミドとを共重合させることによ
り得られる共重合体である。（メタ）アクリルアミドア
ルキルスルホン酸は、その塩を使用してもよく、その塩
を単独あるいは（メタ）アクリルアミドアルキルスルホ
ン酸と併用して共重合してもよい。（メタ）アクリルア
ミドアルキルスルホン酸の塩としては、例えば、アルカ
リ金属、アンモニア、トリエチルアミン、トリエタノー
ルアミン等の有機アミン等の塩を用いることが出来る。
また、得られる共重合体の（メタ）アクリルアミドアル
キルスルホン酸単位をアルカリ剤で中和して本発明の水
溶性両親媒性高分子電解質としてもよい。The structure of the present invention will be described in detail below. The water-soluble amphiphilic polyelectrolyte used in the present invention comprises (meth) acrylamidoalkylsulfonic acid and / or its salt, and N-
It is a copolymer obtained by copolymerizing with a substituted (meth) acrylamide. As the (meth) acrylamidoalkylsulfonic acid, its salt may be used, or the salt may be copolymerized alone or in combination with the (meth) acrylamidoalkylsulfonic acid. As the salt of (meth) acrylamidoalkyl sulfonic acid, for example, salts of alkali metals, ammonia, organic amines such as triethylamine, triethanolamine and the like can be used.
Further, the (meth) acrylamidoalkylsulfonic acid unit of the resulting copolymer may be neutralized with an alkaline agent to obtain the water-soluble amphiphilic polymer electrolyte of the present invention.
【００１５】そして、得られる共重合体である水溶性両
親媒性高分子電解質の特徴としては、親水性を付与する
（メタ）アクリルアミドアルキルスルホン酸単位｛（メ
タ）アクリルアミドアルキルスルホン酸及び／又はその
塩に由来する共重合単位｝と、疎水性を付与するＮ−置
換（メタ）アクリルアミド単位｛Ｎ−置換（メタ）アク
リルアミドに由来する共重合単位｝とをその成分に有
し、この構成成分及び一定の成分組成により、水溶性の
乳化剤として機能するものである。The characteristic feature of the water-soluble amphiphilic polyelectrolyte, which is the obtained copolymer, is the (meth) acrylamidoalkylsulfonic acid unit {(meth) acrylamidoalkylsulfonic acid and / or the A salt-derived copolymerized unit} and a hydrophobicity-imparting N-substituted (meth) acrylamide unit {N-substituted (meth) acrylamide-derived copolymerized unit} in its components, and It functions as a water-soluble emulsifier with a certain composition.
【００１６】この構成成分を有する水溶性両親媒性高分
子電解質の成分組成としては、得られた共重合体が水溶
性を示す範囲内であってかつ乳化剤として機能する範囲
であり、（メタ）アクリルアミドアルキルスルホン酸単
位が共重合体全体の少なくとも１５重量％以上６０重量
％未満である。一方、Ｎ−置換（メタ）アクリルアミド
単位は、共重合体全体の少なくとも４０重量％以上８５
重量％未満である。これにより、本発明の乳化剤である
水溶性両親媒性高分子電解質の表面自由エネルギーは、
４５ｅｒｇ／ｃｍ2以上となる。The component composition of the water-soluble amphiphilic polyelectrolyte having this constituent component is such that the resulting copolymer is water-soluble and functions as an emulsifier. The acrylamidoalkylsulfonic acid unit is at least 15% by weight and less than 60% by weight of the entire copolymer. On the other hand, the N-substituted (meth) acrylamide unit is at least 40% by weight or more and 85% by weight or more of the whole copolymer.
% By weight. Thereby, the surface free energy of the water-soluble amphiphilic polyelectrolyte which is the emulsifier of the present invention,
It becomes 45 erg / cm 2 or more.
【００１７】上記の（メタ）アクリルアミドアルキルス
ルホン酸としては、例えば、アクリルアミドメタンスル
ホン酸、アクリルアミドエタンスルホン酸、アクリルア
ミドプロパンスルホン酸、２−アクリルアミド−２−メ
チルプロパンスルホン酸、２−メタクリルアミド−２−
メチルプロパンスルホン酸、２−アクリルアミド−ｎ−
ブタンスルホン酸等が挙げられる。Examples of the above-mentioned (meth) acrylamidoalkylsulfonic acid include acrylamidomethanesulfonic acid, acrylamidoethanesulfonic acid, acrylamidopropanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid and 2-methacrylamido-2-.
Methylpropanesulfonic acid, 2-acrylamido-n-
Butanesulfonic acid and the like can be mentioned.
【００１８】また、Ｎ−置換（メタ）アクリルアミドと
しては、特に限定はないが、例えば、シクロヘキシルア
クリルアミド、シクロヘキシルメタクリルアミド、ラウ
リルアクリルアミド、ラウリルメタクリルアミド、フェ
ニルアクリルアミド、フェニルメタクリルアミド、２−
ナフチルアクリルアミド、２−ナフチルメタクリルアミ
ド、Ｎ−ｎ−ドデシル−Ｎ−メチルアクリルアミド、Ｎ
−ｎ−ドデシル−Ｎ−メチルメタクリルアミド等が挙げ
られる。The N-substituted (meth) acrylamide is not particularly limited, but for example, cyclohexylacrylamide, cyclohexylmethacrylamide, laurylacrylamide, laurylmethacrylamide, phenylacrylamide, phenylmethacrylamide, 2-
Naphthylacrylamide, 2-naphthylmethacrylamide, Nn-dodecyl-N-methylacrylamide, N
Examples include -n-dodecyl-N-methylmethacrylamide.
【００１９】共重合体の重合方法としては、溶液重合
法、バルク重合法、沈殿重合法等の公知の重合法で重合
すればよい。The copolymer may be polymerized by a known polymerization method such as a solution polymerization method, a bulk polymerization method or a precipitation polymerization method.
【００２０】重合開始剤としては、ラジカル重合を開始
する能力を有するものであれば特に制限はないが、例え
ば、過酸化ベンゾイル、アゾビスイソブチロニトリル、
過硫酸カリウム、過硫酸アンモニウム等が挙げられる。The polymerization initiator is not particularly limited as long as it has the ability to initiate radical polymerization. For example, benzoyl peroxide, azobisisobutyronitrile,
Examples thereof include potassium persulfate and ammonium persulfate.
【００２１】なお、上記の方法で得られる共重合体の水
溶性両親媒性高分子電解質は、水溶性の乳化剤という本
発明の効果を損なわない範囲で、（メタ）アクリルアミ
ドアルキルスルホン酸単位及びＮ−置換（メタ）アクリ
ルアミド単位以外に、他のビニルモノマーからなる単位
を含んでもよい。The water-soluble amphiphilic polyelectrolyte of the copolymer obtained by the above method is a (meth) acrylamidoalkylsulfonic acid unit and N as long as the effect of the present invention of the water-soluble emulsifier is not impaired. -In addition to the substituted (meth) acrylamide unit, units including other vinyl monomers may be included.
【００２２】本発明の水溶性両親媒性高分子電解質から
なる乳化剤を配合して、本発明の乳化組成物及び乳化化
粧料が得られるが、その配合量は０．０１〜３０％、好
ましくは０．１〜２０％である。０．０１％未満では乳
化が十分ではなく、３０％以上ではゲル化してしまう。The emulsifying composition comprising the water-soluble amphiphilic polyelectrolyte of the present invention is blended to obtain the emulsified composition and the emulsified cosmetic of the present invention. The blending amount is 0.01 to 30%, preferably It is 0.1 to 20%. If it is less than 0.01%, the emulsification is not sufficient, and if it is 30% or more, gelation occurs.
【００２３】本発明の乳化組成物及び乳化化粧料には、
本発明の効果を損なわない範囲で、通常乳化組成物及び
乳化化粧料に配合される成分である油分、界面活性剤、
保湿剤、紫外線吸収剤、キレート剤、ｐＨ調整剤、防腐
剤、増粘剤、染料、顔料、香料、色素、可塑剤、有機溶
媒等を適宜配合することができる。The emulsion composition and emulsion cosmetic of the present invention include
To the extent that the effects of the present invention are not impaired, oil components, surfactants, which are components usually added to emulsion compositions and cosmetics,
A moisturizer, an ultraviolet absorber, a chelating agent, a pH adjuster, an antiseptic, a thickener, a dye, a pigment, a fragrance, a dye, a plasticizer, an organic solvent and the like can be appropriately added.
【００２４】[0024]
【実施例】次に本発明の水溶性両親媒性高分子電解質の
合成例および実施例、比較例を挙げ、本発明をさらに詳
しく説明するが、本発明はこれら実施例に限定されるも
のではない。EXAMPLES Next, the present invention will be described in more detail with reference to Synthesis Examples and Examples and Comparative Examples of the water-soluble amphiphilic polymer electrolyte of the present invention, but the present invention is not limited to these examples. Absent.
【００２５】〔合成例１〕撹拌機、還流冷却器、窒素導
入管を備えた反応器に２−アクリルアミド−２−メチル
プロパンスルホン酸３０mmol、ラウリルメタクリルアミ
ド７０mmol、アゾビスイソブチロニトリル０．２mmol、
ジメチルホルムアミド４０mlを仕込み、窒素気流下、室
温で２時間撹拌させた。反応系を６０℃に昇温し２０時
間反応させた。生成液を反応器から取り出した後、エー
テルで３度再沈殿させることによりポリマー粉末を得
た。この粉末をＮａＯＨ水溶液に溶解させ、約７日間透
析した。その後水溶液を濃縮し、凍結乾燥して水溶性両
親媒性高分子電解質を得た。得られた水溶性両親媒性高
分子電解質の表面自由エネルギーは、５４ｅｒｇ／ｃｍ
2であった。[Synthesis Example 1] Stirrer, reflux condenser, nitrogen gas
2-acrylamido-2-methyl in a reactor equipped with an inlet tube
Propanesulfonic acid 30 mmol, lauryl methacrylic acid
70 mmol, azobisisobutyronitrile 0.2 mmol,
Charge 40 ml of dimethylformamide, and under a nitrogen stream, room
Allowed to stir at warm temperature for 2 hours. The reaction system is heated to 60 ° C., and at 20:00
Reacted for a while. After removing the product liquid from the reactor,
The polymer powder was obtained by reprecipitating 3 times with tel.
Was. Dissolve this powder in an aqueous NaOH solution and let it penetrate for about 7 days.
Was analyzed. The aqueous solution is then concentrated and freeze-dried to remove both water-soluble substances.
A hydrophilic polymer electrolyte was obtained. Obtained water-soluble amphiphilic high
The surface free energy of the molecular electrolyte is 54 erg / cm
Was 2.
【００２６】〔合成例２〕撹拌機、還流冷却器、窒素導
入管を備えた反応器に２−アクリルアミド−２−メチル
プロパンスルホン酸５５mmol、アダマンチルメタクリル
アミド４５mmol、アゾビスイソブチロニトリル０．２mm
ol、ジメチルホルムアミド４０mlを仕込み、窒素気流
下、室温で２時間撹拌させた。反応系を６０℃に昇温し
２０時間反応させた。生成液を反応器から取り出した
後、エーテルで３度再沈殿させることによりポリマー粉
末を得た。この粉末をＮａＯＨ水溶液に溶解させ、約７
日間透析した。その後水溶液を濃縮し、凍結乾燥して水
溶性両親媒性高分子電解質を得た。得られた水溶性両親
媒性高分子電解質の表面自由エネルギーは、６５ｅｒｇ
／ｃｍ2であった。[Synthesis Example 2] 55 mmol of 2-acrylamido-2-methylpropanesulfonic acid, 45 mmol of adamantyl methacrylamide, and 0.2 mm of azobisisobutyronitrile were placed in a reactor equipped with a stirrer, a reflux condenser and a nitrogen introducing tube.
and 40 ml of dimethylformamide were charged, and the mixture was stirred at room temperature under a nitrogen stream for 2 hours. The reaction system was heated to 60 ° C. and reacted for 20 hours. The product liquid was taken out of the reactor and then reprecipitated 3 times with ether to obtain a polymer powder. Dissolve this powder in NaOH aqueous solution,
He dialyzed for a day. Then, the aqueous solution was concentrated and freeze-dried to obtain a water-soluble amphiphilic polymer electrolyte. The surface free energy of the obtained water-soluble amphiphilic polyelectrolyte is 65 erg.
Was / cm 2 .
【００２７】〔実施例１〜３、比較例１〜３〕上記合成
例１で合成した水溶性両親媒性高分子電解質を乳化剤に
用い、表１に示す処方で、それぞれ実施例１〜３及び比
較例１〜３の乳化組成物を調整し、５０℃、０℃での１
ヵ月放置後の安定性を評価した。安定性は下記の３段階
にて評価した。[Examples 1 to 3 and Comparative Examples 1 to 3] The water-soluble amphiphilic polyelectrolytes synthesized in the above Synthesis Example 1 were used as emulsifiers, and the formulations shown in Table 1 were applied to Examples 1 to 3 and The emulsified compositions of Comparative Examples 1 to 3 were adjusted to 1 at 50 ° C. and 0 ° C.
The stability after standing for one month was evaluated. The stability was evaluated according to the following three grades.
【００２８】 ５０℃ ・・・ ○：油分離がまったく見られない。 △：油分離がわずかに見られる。 ×：油分離が見られる。 ０℃ ・・・ ○：弾性化が無く指どれが良い。 △：わずかに弾性化はあるが指どれは良い。 ×：弾性化をして指どれが悪い。50 ° C .... O: No oil separation is observed. Δ: Oil separation is slightly observed. X: Oil separation is observed. 0 ° C ・ ・ ・ ○: There is no elasticity and the fingers are good. Δ: There is slight elasticity, but fingers are good. X: The finger is bad due to elasticity.
【００２９】[0029]
【表１】 [Table 1]
【００３０】表１の結果より、実施例１〜３では安定性
良好な乳化組成物が得られることが分かった。比較例
１、２より従来のアルキル変性カルボキシビニルポリマ
ーでは少量で油分離が見られ、配合量を多くすると油分
離は抑えられるが、弾性化が起きてしまう。また比較例
３よりハイビスワコー１０５には乳化力が無いことがわ
かる。From the results shown in Table 1, it was found that in Examples 1 to 3, emulsion compositions having good stability were obtained. From Comparative Examples 1 and 2, oil separation was observed in the conventional alkyl-modified carboxyvinyl polymer in a small amount, and when the blending amount was increased, oil separation was suppressed, but elasticity was generated. Further, it can be seen from Comparative Example 3 that Hibiswako 105 has no emulsifying power.
【００３１】〔実施例４〕 乳液 （処方） 重量％ グリセリン ５．０ ソルビトール ５．０ 合成例１で得られた乳化剤 ３．０ ヘキサメタリン酸ソーダ ０．０１ ワセリン ０．２ 流動パラフィン ５．０ ジイソステアリン酸グリセリル １０．０ オクタン酸セチル ２．０ 香料 ０．０１ 防腐剤 ０．１ 精製水 残 量 従来の製法に従い調製した本発明の乳化化粧料である乳
液は、５０℃及び５℃で１ヵ月放置後も状態は安定であ
り、使用性も良好であった。[Example 4] Emulsion (formulation) wt% Glycerin 5.0 Sorbitol 5.0 Emulsifier obtained in Synthesis Example 3.0 Sodium hexametaphosphate 0.01 Vaseline 0.2 Liquid paraffin 5.0 Diisostearic acid Glyceryl 10.0 Cetyl octanoate 2.0 Perfume 0.01 Preservative 0.1 Purified water Residual amount The emulsion which is the emulsion cosmetic of the present invention prepared according to the conventional production method is left at 50 ° C. and 5 ° C. for 1 month. The state was stable and the usability was good.
【００３２】〔実施例５〕 クリーム （処方） 重量％ ワセリン １０．０ 流動パラフィン １０．０ セタノール ２．０ マイクロクリスタリンワックス ２．０ メチルポリシロキサン ５．０ ホホバ油 ５．０ 合成例１で得られた乳化剤 ５．０ プロピレングリコール ５．０ グリセリン ５．０ 香料 ０．０５ 防腐剤 ０．１ 精製水 残 量 従来の製法に従い調製した本発明の乳化化粧料であるク
リームは、５０℃及び５℃で１ヵ月放置後も状態は安定
であり、使用性も良好であった。Example 5 Cream (formulation) wt% Vaseline 10.0 Liquid paraffin 10.0 Cetanol 2.0 Microcrystalline wax 2.0 Methylpolysiloxane 5.0 Jojoba oil 5.0 Obtained in Synthesis Example 1. Emulsifier 5.0 Propylene glycol 5.0 Glycerin 5.0 Fragrance 0.05 Preservative 0.1 Purified water Residual amount The cream which is the emulsion cosmetic of the present invention prepared according to the conventional production method is used at 50 ° C and 5 ° C. The condition was stable even after being left for one month, and the usability was good.
【００３３】[0033]
【発明の効果】本発明によれば、（メタ）アクリルアミ
ドアルキルスルホン酸とＮ−置換（メタ）アクリルアミ
ドを共重合して得られる水溶性両親媒性高分子電解質か
らなる乳化剤を用いることにより、安定性、使用性の良
好な乳化組成物及び乳化化粧料が提供できる。INDUSTRIAL APPLICABILITY According to the present invention, by using an emulsifier comprising a water-soluble amphiphilic polyelectrolyte obtained by copolymerizing (meth) acrylamidoalkylsulfonic acid and N-substituted (meth) acrylamide, stable It is possible to provide an emulsified composition and an emulsified cosmetic having good properties and usability.
Claims (6)
ン酸及び／又はその塩と、Ｎ−置換（メタ）アクリルア
ミドとを共重合して得られる、もしくは得られた共重合
体を更にアルカリ剤で中和して得られる水溶性両親媒性
高分子電解質からなることを特徴とする乳化剤。1. A (meth) acrylamide alkyl sulfonic acid and / or a salt thereof and an N-substituted (meth) acrylamide obtained by copolymerization, or the obtained copolymer is further neutralized with an alkaline agent. An emulsifier comprising a water-soluble amphiphilic polyelectrolyte obtained as described above.
タ）アクリルアミドアルキルスルホン酸単位が、少なく
とも全体の１５重量％以上含有されることを特徴とする
請求項１記載の乳化剤。2. The emulsifier according to claim 1, wherein the (meth) acrylamidoalkylsulfonic acid unit of the water-soluble amphiphilic polyelectrolyte is contained in an amount of at least 15% by weight based on the whole.
置換（メタ）アクリルアミド単位が、少なくとも全体の
４０重量％以上含有されることを特徴とする請求項１記
載の乳化剤。3. N- of the water-soluble amphipathic polyelectrolyte
The emulsifier according to claim 1, wherein the substituted (meth) acrylamide unit is contained in an amount of at least 40% by weight based on the whole.
合したことを特徴とする乳化組成物。4. An emulsified composition comprising the emulsifier according to claim 1, 2 or 3.
％であることを特徴とする請求項４記載の乳化組成物。5. The emulsified composition according to claim 4, wherein the compounding amount of the emulsifier is 0.1 to 20% by weight.
合したことを特徴とする乳化化粧料。6. An emulsified cosmetic comprising the emulsified composition according to claim 4 or 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7087342A JPH08252447A (en) | 1995-03-20 | 1995-03-20 | Emulsifying agent comprising water-soluble amphiphilic polymeric electrolyte, emulsion composition and emulsion cosmetic blended with the agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7087342A JPH08252447A (en) | 1995-03-20 | 1995-03-20 | Emulsifying agent comprising water-soluble amphiphilic polymeric electrolyte, emulsion composition and emulsion cosmetic blended with the agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08252447A true JPH08252447A (en) | 1996-10-01 |
Family
ID=13912203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7087342A Withdrawn JPH08252447A (en) | 1995-03-20 | 1995-03-20 | Emulsifying agent comprising water-soluble amphiphilic polymeric electrolyte, emulsion composition and emulsion cosmetic blended with the agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08252447A (en) |
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