JP2005523974A5

JP2005523974A5 -

Info

Publication number: JP2005523974A5
Application number: JP2003587907A
Authority: JP
Filing date: 2002-04-26
Publication date: 2008-09-11
Anticipated expiration: 2022-04-26

Description

すなわち本発明は、以下の通りである。
イソブテンオリゴマーをエポキシ化、次いで加水分解を経由し、エチレンオキサイド、プロピレンオキサイド又はブチレンオキサイドを付加させて得られる下記式（１）で示されるポリオキシアルキレン分岐アルキルエーテルからなる高分子界面活性剤。 That is, the present invention is as follows.
A polymer surfactant comprising a polyoxyalkylene branched alkyl ether represented by the following formula (1), obtained by epoxidizing an isobutene oligomer and then adding ethylene oxide, propylene oxide or butylene oxide via hydrolysis .

Ｘ−Ｒ−Ｏ（Ｃ_n Ｈ_2nＯ）_mＡ（１）
ここで、ＸはＯ（Ｃ_n Ｈ_2nＯ）zＢ基を示し、
Ｒは炭素数8 〜200 迄で、分子内に少なくとも1〜3の炭素数の分岐鎖を5〜55個有する炭化水素基、
ｎは2 〜4 の整数、
ｍは2 〜100 の整数、
Ｚは0 又は98 以下の整数を示すとともに、ｍ＋Ｚが2〜100であり、
Ａは水素を示し、
Ｂは水素を示す。 _{X-R-O (C n} H 2n O) m A (1)
Here, X represents an O (C _n H _2n O) zB group,
R is a hydrocarbon group having 8 to 200 carbon atoms and having 5 to 55 branched chains having at least 1 to 3 carbon atoms in the molecule;
n is an integer from 2 to 4,
m is an integer from 2 to 100,
Z, together indicate to an integer of 0 or 98 or less, m + Z is 2 to 100,
A represents a hydrogen,
B represents a hydrogen.

実施例３−１〜３、５及び比較例３−１〜３：乳液２
表２に示す配合で、界面活性剤、油性成分をビーカーにいれ、80〜85℃に加熱して溶解混合させた。次にこの混合物を攪拌機にて300 ｒｐｍの回転数で攪拌し、これに80〜85℃に予熱した精製水を徐々に加えて乳液とし、室温まで冷却した。その後水性成分を添加し十分に混合してテスト用の乳液を得た。保湿成分を添加し良く混合してテスト用の組成物を得た。次に乳液の安定性、並びにテスト用の組成物の角膜についての保湿性と使用感を評価した。
（安定性）
3 日間、25℃で放置した後の乳化状態を目視観察評価した。
（保湿性の評価）
実施例、比較例で作製した乳液の保湿性を、10名の被験者についての平均データで、以下の実験により評価した。実験は、環境を一定とするため、温度20℃、湿度30％の恒温恒湿室で行った。まずテスト組成物を未塗布の状態で被験者の前腕内側部の角質水分量を皮表角層水分量測定装置を用いて測定しこれを初期値とした。テスト組成物を一定量塗布し、120 分後の角質水分量を測定し、角質水分量増加率（120分後の角質水分量／塗布前の
角質水分量（初期値）×100（％））から保湿性能を評価した。評価基準は下記の通りで
ある。
評価基準
○：角質水分量増加率＞30 （％）
△：角質水分量増加率 10 〜30（％）
×：角質水分量増加率＜10 （％）
（使用感の評価）
組成物の使用感の評価は、塗布後の感触を10名のパネルにより判定してもらい、べとついた使用感を感じたパネルの人数を基準にして、テスト組成物の使用感を以下の評価基準により判定した。
評価基準
◎：べとつくと感じた人が2 人未満
○：べとつくと感じた人が2 人以上5 人未満
△：べとつくと感じた人が5 人以上8 人未満
×：べとつくと感じた人が8 人以上 Examples 3-1 to 3, 5 and Comparative Examples 3-1 to 3 : Emulsion 2
In the formulation shown in Table 2, a surfactant and an oily component were placed in a beaker, heated to 80 to 85 ° C. and dissolved and mixed. Next, this mixture was stirred with a stirrer at a rotational speed of 300 rpm, and purified water preheated to 80 to 85 ° C. was gradually added thereto to form an emulsion, which was cooled to room temperature. The aqueous component was then added and mixed thoroughly to obtain a test emulsion. A moisturizing component was added and mixed well to obtain a test composition. Next, the stability of the emulsion, as well as the moisturizing property and feeling of use of the test composition for the cornea were evaluated.
(Stability)
The emulsified state after standing at 25 ° C. for 3 days was evaluated by visual observation.
(Evaluation of moisture retention)
The moisturizing properties of the emulsions prepared in Examples and Comparative Examples were evaluated by the following experiment using average data for 10 subjects. The experiment was conducted in a constant temperature and humidity chamber with a temperature of 20 ° C. and a humidity of 30% in order to keep the environment constant. First, the amount of stratum corneum at the inner side of the forearm of the subject was measured using a skin surface stratum corneum moisture measuring device in the state where the test composition was not applied, and this was taken as the initial value. Apply a certain amount of the test composition, measure the amount of keratin water after 120 minutes, and increase rate of keratin moisture (the amount of horny water after 120 minutes / the amount of horny water before application (initial value) x 100 (%)) The moisturizing performance was evaluated. The evaluation criteria are as follows.
Evaluation criteria ○: Increase rate of keratin water content> 30 (%)
Δ: Keratin moisture increase rate 10-30 (%)
×: Keratin moisture increase rate <10 (%)
(Evaluation of usability)
The evaluation of the feeling of use of the composition was evaluated by the panel of 10 people, and the feeling of use of the test composition was evaluated based on the number of panelists who felt a sticky feeling. Judgment was made based on evaluation criteria.
Evaluation criteria ◎: Fewer than 2 people who felt sticky ○: 2 or more but less than 5 people felt sticky △: 5 or more but less than 8 people felt sticky ×: 8 people who felt sticky More than people

表２より明らかなように、実施例の高分子界面活性剤を配合した乳液では、安定性にすぐれ、保湿性に優れており、べとつきの少ない非常に良好な感触であった。比較例では、保湿効果は得られるものの、使用感が損なわれていた。

As is clear from Table 2, the emulsions containing the polymeric surfactants of the examples were excellent in stability, excellent in moisture retention, and had a very good feel with little stickiness. In the comparative example, although the moisturizing effect was obtained, the feeling of use was impaired.

Claims

A polymer surfactant comprising a polyoxyalkylene branched alkyl ether represented by the following formula (1), obtained by epoxidizing an isobutene oligomer and then adding ethylene oxide, propylene oxide or butylene oxide via hydrolysis .
_{X-R-O (C n} H 2n O) m A (1)
(here,
X represents an O (C _n H _2n O) _z B group,
R is a hydrocarbon group having 8 to 200 carbon atoms and having 5 to 55 branched chains having at least 1 to 3 carbon atoms in the molecule;
n is an integer from 2 to 4,
m is an integer from 2 to 100,
Z, together indicate to an integer of 0 or 98 or less, m + Z is 2 to 100,
A represents a hydrogen,
B represents a hydrogen. )

A cosmetic comprising at least one or more of the polymeric surfactants according to claim 1 and an aqueous component.

A cosmetic comprising at least one or more of the polymeric surfactants according to claim 1 and an oily component.

A cosmetic comprising 0.5 to 50% by weight of the polymeric surfactant according to claim 1, 10 to 95% by weight of an oily component, and 0.05 to 80% by weight of an aqueous component.

A cosmetic for hair comprising the surfactant according to claim 1.