JP2004339096A - Aqueous cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an aqueous cosmetic which has a transparent to semi-transparent gracious appearance, is not sticky, exhibits a humidity-retaining touch on skin, after applied to the skin, and has excellent temporal stability. <P>SOLUTION: This aqueous cosmetic is characterized by comprising a component (A), a component (B), a component (C) and / or a component (D), and a component (E). The component (A) is one or more compounds selected from the group consisting of an ester compound of erythritol and / an erythritol condensation product with a fatty acid, a polycondensation product of the ester compound, a polybasic carboxylic acid, and erythritol and / an erythritol condensation product, a polycondensation product of a fatty acid with a polycondensation product of erythritol and / an erythritol condensation product with a polybasic carboxylic acid, and a polycondensation product of a fatty acid, a polybasic carboxylic acid and erythritol and / an erythritol condensation product. The component (B) is ethanol. The component (C) is a nonionic surfactant. The component (D) is an alkyl-modified carboxyvinyl polymer. The component (E) is water. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

（式中、Ｒ_１〜Ｒ_４はそれぞれ独立して水素原子、脂肪酸残基又は多価カルボン酸残基を表し、Ｒ_５及びＲ_６はそれぞれ独立して水素原子、脂肪酸残基又は多価カルボン酸残基を表す。）
（Ｂ）エタノール
（Ｃ）非イオン性界面活性剤
（Ｄ）アルキル変性カルボキシビニルポリマー
（Ｅ）水
なお、エリスリトール及び／又はエリスリトール縮合物と多価カルボン酸との重縮合物と脂肪酸との重縮合物とは、エリスリトール及び／又はエリスリトール縮合物と多価カルボン酸との重縮合物と、脂肪酸とのエステル化反応で得られた重縮合物のことを示す。
【０００６】
また、本発明は、成分（Ａ）、（Ｂ）、（Ｃ）及び／または（Ｄ）、並びに（Ｅ）含有するものであり、（Ａ）のうち、一般式（Ｉ）中のＲ_１〜Ｒ_４の少なくとも１つが水素原子であることを特徴とする水系化粧料を提供するものである。
【０００７】
さらに、本発明は、成分（Ａ）、（Ｂ）、（Ｃ）及び／または（Ｄ）、並びに（Ｅ）含有するものであり、（Ａ）のうち、一般式（ＩＩ）中のＲ_５及びＲ_６の少なくとも１つが水素原子であることを特徴とする水系化粧料を提供するものである。
【０００８】
さらに、本発明は、成分（Ａ）、（Ｂ）、（Ｃ）及び／または（Ｄ）、並びに（Ｅ）含有するものであり、成分（Ａ）の水酸基価（ＯＨＶ）が１０〜１５０であることを特徴とする水系化粧料を提供するものである。
【０００９】
【発明の実施の形態】
以下、本発明の実施の形態を述べる。
本発明の水系化粧料における成分（Ａ）は、ベタツキがなく後肌の保湿感を演出するために使用される。成分（Ａ）はエリスリトール及び／又はエリスリトール縮合物と脂肪酸との下記一般式（Ｉ）及び／又は（ＩＩ）で示されるエステル化合物、エリスリトール及び／又はエリスリトール縮合物と該エステル化合物と多価カルボン酸との重縮合物、エリスリトール及び／又はエリスリトール縮合物と多価カルボン酸との重縮合物と脂肪酸との重縮合物、及びエリスリトール及び／又はエリスリトール縮合物と脂肪酸と多価カルボン酸との重縮合物からなる群から選ばれる１種又は２種以上である。
【化３】

（式中、Ｒ_１〜Ｒ_４はそれぞれ独立して水素原子、脂肪酸残基又は多価カルボン酸残基を表し、Ｒ_５及びＲ_６はそれぞれ独立して水素原子、脂肪酸残基又は多価カルボン酸残基を表す。）
成分（Ａ）を形成するための脂肪酸としては、炭素数５〜２８の直鎖又は分岐鎖の脂肪酸が好ましく、特に分岐鎖の脂肪酸が好ましい。このような分岐鎖の脂肪酸としては、例えば、ピバリン酸、イソヘプタン酸、４−エチルペンタン酸、イソオクチル酸、２−エチルヘキサン酸、４，５−ジメチルヘキサン酸、４−プロピルペンタン酸、イソノナン酸、２−エチルヘプタン酸、３，５，５−トリメチルヘキサン酸、イソデカン酸、イソドデカン酸、２−メチルデカン酸、３−メチルデカン酸、４−メチルデカン酸、５−メチルデカン酸、６−メチルデカン酸、７−メチルデカン酸、９−メチルデカン酸、６−エチルノナン酸、５−プロピルオクタン酸、イソラウリン酸、３−メチルヘンデカン酸、６−プロピルノナン酸、イソトリデカン酸、２−メチルドデカン酸、３−メチルドデカン酸、４−メチルドデカン酸、５−メチルドデカン酸、１１−メチルドデカン酸、７−プロピルデカン酸、イソミリスチン酸、２−メチルトリデカン酸、１２−メチルトリデカン酸、イソパルミチン酸、２−ヘキシルデカン酸、１４−メチルペンタデカン酸、２−エチルテトラデカン酸、イソステアリン酸、メチル分岐型イソステアリン酸、２−へプチルウンデカン酸、２−イソへプチルイソウンデカン酸、２−エチルヘキサデカン酸、１４−エチルヘキサデカン酸、１４−メチルヘプタデカン酸、１５−メチルヘプタデカン酸、１６−メチルヘプタデカン酸、２−ブチルテトラデカン酸、イソアラキン酸、３−メチルノナデカン酸、２−エチルオクタデカン酸、イソヘキサコ酸、２４−メチルヘプタコサン酸、２−エチルテトラコサン酸、２−ブチルドコサン酸、２−ヘキシルイコサン酸、２−オクチルオクタデカン酸、及び２−デシルヘキサデカン酸などが挙げられ、これらを１種又は２種以上を使用することができる。これらのうち炭素数８〜１８の脂肪酸、特にイソオクチル酸（さらに好ましくは、２−エチルヘキサン酸、４，５−ジメチルヘキサン酸）、イソノナン酸（さらに好ましくは、２−エチルヘプタン酸、３，５，５−トリメチルヘキサン酸）、イソパルミチン酸、イソトリデカン酸、イソステアリン酸（さらに好ましくは、メチル分岐型イソステアリン酸、２−ヘプチルウンデカン酸、２−イソヘプチルイソウンデカン酸）などの炭素数８〜１８の分岐飽和脂肪酸が好ましい。
直鎖脂肪酸とは、炭素数６から炭素数２８の直鎖脂肪酸で、例えば、カプロン酸、カプリル酸、オクチル酸、ノニル酸、デカン酸、ドデカン酸、ラウリン酸、トリデカン酸、ミリスチン酸、パルミチン酸、ステアリン酸、ベヘン酸などの直鎖飽和脂肪酸、また、カプロレイン酸、ウンデシレン酸、ミリストレイン酸、パルミトレイン酸、オレイン酸、エライジン酸、ゴンドイン酸、エルカ酸、ブラシン酸などの直鎖不飽和脂肪酸が挙げられ、これらを１種又は２種以上を使用することができる。
【００１０】
本発明の成分（Ａ）の一般式（Ｉ）で示されるエステル化合物は、モノエステル、ジエステル、トリエステル、又はテトラエステルの１種又は２種以上からなるものである。また、一般式（ＩＩ）で示されるエステル化合物は、モノエステル又はジエステルの１種又は２種からなるものである。また、一般式（Ｉ）及び一般式（ＩＩ）で示されるエステル化合物とは、一般式（Ｉ）で示されるエステル化合物と一般式（ＩＩ）で示されるエステル化合物からそれぞれ選ばれる２種以上の混合物である。
さらに、本発明の成分（Ａ）の一般式（Ｉ）中のＲ_１〜Ｒ_４の少なくとも１つが水素原子であることが好ましい。また、一般式（ＩＩ）中のＲ_５及びＲ_６の少なくとも１つが水素原子であることが好ましい。
本発明では、さらに、上記一般式（Ｉ）を基本骨格とするジエステル、及びトリエステルの合計含有率がエステル化合物中の２０〜９４質量％、さらには４０〜８０質量％を占めるものが好ましい。
【００１１】
さらに、本発明の成分（Ａ）は、エリスリトール及び／又はエリスリトール縮合物と、イソオクチル酸との一般式（Ｉ−１）及び／又は（ＩＩ−１）で表されるエステル化合物の混合物であって、一般式（Ｉ−１）を基本骨格とするモノエステル、ジエステル、トリエステル、テトラエステルの含量がそれぞれ０〜１０質量％、０〜３０質量％、１８〜７０質量％及び６〜７５質量％であることが好ましく、さらにそれぞれ０〜３質量％、０〜２０質量％、１３〜７０質量％及び８〜６０質量％であることがより好ましく、それぞれ０〜３質量％、３〜２０質量％、３０〜７０質量％、８〜４０質量％であることが最も好ましい。そして、一般式（ＩＩ−１）を基本骨格とするモノエステル、ジエステルの含有量はそれぞれ、０〜１０質量％、０〜５０質量％が好ましく、さらにそれぞれ０〜３質量％、０〜３５質量％であることがより好ましく、それぞれ０〜３質量％、５〜３５質量％であるのが最も好ましい。
【化４】

（式中、Ｒ_１’〜Ｒ_４’はそれぞれ独立して水素原子又はイソオクチル酸残基を表し、Ｒ_５’及びＲ_６’はそれぞれ独立して水素原子又はイソオクチル酸残基を表す。）尚、式中のイソオクチル酸残基としては、‐Ｃ（＝Ｏ）‐（ＣＨ_２ＣＨ_３）ＣＨ‐（ＣＨ_２）_３‐ＣＨ_３［２−エチルヘキサン酸］や‐Ｃ（＝Ｏ）‐（ＣＨ_２）_２−（ＣＨ_３）ＣＨ‐（ＣＨ_３）ＣＨ‐ＣＨ_３［４，５−ジメチルヘキサン酸］があげられる。
【００１２】
モノエステル、ジエステル、トリエステル、テトラエステルの含量について、一般式（Ｉ−１）の場合を、又、モノエステル、ジエステルの含量について、一般式（ＩＩ−１）の場合を説明したが、それらが一般式（Ｉ）の場合、一般式（ＩＩ）の場合についても同様である。
【００１３】
また、本発明の成分（Ａ）の重縮合物を調製するのに本発明で用いる多価カルボン酸としては、コハク酸、アジピン酸、アゼライン酸やセバシン酸などの炭素数２から炭素数１０の２塩基性カルボン酸が好ましく、特に炭素数４〜１０の２塩基性飽和カルボン酸が好ましい。これらは１種又は２種以上を使用することができる。
本発明の成分（Ａ）の重縮合物の調製においては、原料として炭素数８〜１８の分岐脂肪酸（好ましくは飽和分岐脂肪酸）と炭素数２から炭素数１０の２塩基性カルボン酸（好ましくは炭素数４〜１０の２塩基性カルボン酸）との混合物や、炭素数８〜１８の分岐脂肪酸（好ましくは分岐飽和脂肪酸）及び炭素数８〜１８の直鎖脂肪酸（直鎖飽和脂肪酸）と炭素数２から炭素数１０の２塩基性カルボン酸（好ましくは炭素数４〜１０の２塩基性カルボン酸）との混合物を用いるのが好ましい。この場合、分岐脂肪酸と２塩基性カルボン酸とのモル比（分岐脂肪酸／２塩基性カルボン酸）を、７０／３０〜９５／５で用いるのがよく、分岐脂肪酸及び直鎖脂肪酸と２塩基性カルボン酸とのモル比（分岐脂肪酸及び直鎖脂肪酸／２塩基性カルボン酸）を、７０／３０〜９５／５で用いるのがよい。
【００１４】
本発明の成分（Ａ）は、水酸基価（ＯＨＶ）（以下、単に「ＯＨＶ」と表す）が１０〜１５０のものが好ましく、ＯＨＶが２０〜１２０のものがより好ましく、３０〜１１０のものが最も好ましい。ＯＨＶがこのような範囲にあると、水性成分に対する相溶性がより良好となり、経時安定性に優れるとともに、抱水性が高くなるために、保湿感を得られやすいといった効果を発揮できる。ここでＯＨＶとは、粧原基一般試験法水酸基価測定法により得られた値とする。本発明の成分（Ａ）は、室温で液状であるのが好ましく、粘度（２５℃）が１００〜３００００ｍＰａ・ｓであるのが好ましい。
本発明の成分（Ａ）は、例えば、エリスリトール１当量に対し脂肪酸及び／又は多価カルボン酸を１．５〜３．５当量仕込み、無触媒または触媒（たとえば塩化スズ）存在下、１８０〜２４０℃にてエステル化及び／又は脱水縮合反応を行う。反応終了後は、反応混合物を吸着処理等に付して触媒除去処理を行い、蒸留等により未反応原料など低分子分を除去して、最終製品を得る方法により調製することができる。
【００１５】
成分（Ａ）の配合量は、水系化粧料全量中０．００５〜３質量％が好ましく、更に０．０１〜１質量％がより好ましい。この範囲で用いることにより、本発明で対象とする水系化粧料は、透明から半透明の優美な外観を有し、ベタツキが無く、後肌に保湿感を発揮し、経時安定性に優れたものとなる。配合量が０．００５質量％未満では後肌の保湿感を発揮することができず、３質量％を超えると透明から半透明の優美な外観や、優れた経時安定性が得られず好ましくない。
また、本発明には、本発明の効果を妨げない範囲で必要に応じて成分（Ａ）以外に他の油系成分、例えば、固形油、半固形油、液体油、揮発性油等の性状を問わず、炭化水素類、油脂類、ロウ類、硬化油類、エステル油類、脂肪酸類、高級アルコール類、シリコーン油類、フッ素系油類、ラノリン誘導体類、及び油性ゲル化剤類等を配合することができる。これらの油剤の配合量は、成分（Ａ）と合わせて、水系化粧料全量中５質量％を超えないことが好ましい。
【００１６】
本発明で用いられる成分（Ｂ）のエタノールは、化粧料一般に用いられているものであれば特に制約なく使用することができる。本発明の成分（Ｂ）は、成分（Ａ）等の油剤及び油溶性物質を溶解すると共にベタツキを低減するために含有され、水系化粧料全量中、１〜４０質量％が好ましく、更に２〜２０質量％がより好ましい。配合量が１質量％未満ではベタツキが低減できず、経時安定性にも劣り、４０質量％を超えると、後肌の保湿感が発揮できず好ましくない。
【００１７】
本発明で用いられる成分（Ｃ）の非イオン性界面活性剤及び／又は（Ｄ）のアルキル変性カルボキシビニルポリマーは、成分（Ａ）等の油剤及び油溶性物質を均一に分散し、経時安定性を確保するために含有される。
本発明で用いられる成分（Ｃ）の非イオン性界面活性剤としては例えば、グリセリン脂肪酸エステル及びそのアルキレングリコール付加物、ポリグリセリン脂肪酸エステル及びそのアルキレングリコール付加物、プロピレングリコール脂肪酸エステル及びそのアルキレングリコール付加物、ソルビタン脂肪酸エステル及びそのアルキレングリコール付加物（例えばセスキイソステアリン酸ソルビタン、モノオレイン酸ポリオキシエチレンソルビタンなど）、ソルビトールの脂肪酸エステル及びそのアルキレングリコール付加物、ポリアルキレングリコール脂肪酸エステル、蔗糖脂肪酸エステル、ポリオキシアルキレンアルキルエーテル、グリセリンアルキルエーテル、ポリオキシエチレンアルキルフェニルエーテル、ポリオキシエチレン硬化ヒマシ油（例えばポリオキシエチレン（６０）硬化ひまし油など）、ラノリンのアルキレングリコール付加物、ポリオキシアルキレン変性シリコーン等が挙げられ、これらの１種又は２種以上を用いることができる。また、ＨＬＢ値が８以上のものが好ましく、ＨＬＢ値が８以上のものと８未満のものを組み合わせて使用してもよい。
成分（Ｃ）の非イオン性界面活性剤の配合量は特に限定されないが、水系化粧料全量中、０．０１〜１０質量％が好ましく、更に０．０５〜５質量％がより好ましい。この範囲であればさっぱりとした感触で後肌のベタツキの無い透明から半透明の優美な外観を有しかつ経時安定性に優れた水系化粧料を得ることができる。また、成分（Ｃ）の非イオン性界面活性剤は、成分（Ａ）に対して、０．０５〜１００倍量の範囲で用いることが好ましく、更に０．１〜２０質量％がより好ましい。尚、非イオン性界面活性剤はエタノールに溶解させて用いることが安定性に優れた水系化粧料を得る上で好ましい。
【００１８】
本発明で用いられる成分（Ｄ）のアルキル変性カルボキシビニルポリマーは特に限定されないが、具体的に例示するのであれば、アクリル酸・メタクリル酸アルキル共重合体などが挙げられ、更に市販品の例としては、Ｂ．Ｆ．グッドリッチ社製のカーボポール１３４２、ペミュレンＴＲ−１、ペミュレンＴＲ−２等が挙げられる。これらは必要に応じて１種又は２種以上を用いることができる。
成分（Ｄ）のアルキル変性カルボキシビニルポリマーの配合量は特に限定されないが、水系化粧料全量中、０．０００５〜１質量％が好ましく、更に０．００１〜０．５質量％がより好ましい。この範囲であればさっぱりとした感触で後肌のベタツキの無い透明から半透明の優美な外観を有しかつ経時安定性に優れた水系化粧料を得ることができる。
【００１９】
また、本発明で対象とする水系化粧料は、成分（Ｃ）又は（Ｄ）をそれぞれ単独で用いてもよく、さらに成分（Ｃ）及び（Ｄ）を併用して用いてもよい。
【００２０】
本発明で用いられる成分（Ｅ）の水は、化粧料一般に用いられているものであれば特に制約なく使用することができる。本発明の成分（Ｅ）は、水系化粧料全量中４０〜９８質量％が好ましく、更に５０〜９０質量％がより好ましい。配合量が４０質量％未満ではさっぱりとした感触が得られず、９８質量％を超えると、後肌の保湿感が発揮できず好ましくない。
【００２１】
本発明の水系化粧料には、前記必須成分の他に、本発明の効果を妨げない範囲で必要に応じて化粧料、医薬品等に通常使用される水性成分、薬効剤、保湿成分、水溶性高分子、抗炎症剤、殺菌剤、防腐剤、紫外線吸収剤、酸化防止剤、有機及び無機粉体、香料、及び色素などを配合することができる。
水性成分としては、成分（Ｂ）のエタノール及び成分（Ｅ）の水と同様に水に可溶な成分であれば何れでもよく、例えば、ブチルアルコール等の低級アルコール、プロピレングリコール、１，３−ブチレングリコール、ジプロピレングリコール、ポリエチレングリコール等のグリコール類、グリセリン、ジグリセリン、ポリグリセリン等のグリセロール類、アロエベラ、ウイッチヘーゼル、ハマメリス、キュウリ、レモン、ラベンダー、ローズ等の植物抽出液が挙げられる。
【００２２】
さらに保湿感を高めるために保湿成分を配合することができるが、例えば、糖類、多糖類、アミノ酸類が挙げられる。
水溶性高分子としては、グアーガム、コンドロイチン硫酸ナトリウム、ヒアルロン酸、アラビアガム、アルギン酸ナトリウム、カラギーナン等の天然系のもの、メチルセルロース、ヒドロキシエチルセルロース、カルボキシメチルセルロース等の半合成系のもの、カルボキシビニルポリマー、ポリビニルアルコール、ポリビニルピロリドン、ポリアクリル酸ナトリウム等の合成系のものを挙げることができる。
【００２３】
本発明の水系化粧料において、半透明、透明とは、光路長１ｃｍで波長が７００ｎｍでの光透過率を測定し、水の透過率を１００とした場合の発明品の透過率が２０〜９５を半透明、９５を超えたものを透明と規定する。
【００２４】
本発明の水系化粧料としては美容液、化粧水、乳液、クリーム、ジェル等の基礎化粧料のほか、洗顔料、整髪剤等に適用が可能であり、水系化粧料に粉体を分散したアイシャドウ、ファンデーション等のメイクアップ製品へも適用することができる。
また、これらの水系化粧料は、通常の化粧料を製造する方法にて製造することができ、特にその製法は限定されない。
【００２５】
次に実施例を挙げて本発明を説明するが、本発明はこれら実施例に限定されるものではない。
【００２６】
【実施例】
（製造例１）エリスリトールと２−エチルヘキサン酸のエステル化合物の調製２−エチルヘキサン酸〔協和発酵（株）製、オクチル酸〕１７８ｇ（１．２４モル）とエリスリトール〔日研化学（株）、エリスリトール〕７２ｇ（０．５９モル）を撹拌機、温度計、窒素ガス吹込管、水分離管を備えた３００ｍｌの四つ口フラスコに仕込み、還流溶剤としてキシレンを全仕込み量の５質量％の量で加え、混合物を１８０〜２４０℃で２０時間撹拌反応させた。反応終了後、還流溶剤であるキシレンを減圧留去し、活性白土を用いて脱色処理を行い、常法にて脱臭・蒸留処理を行い、目的とする水酸基価１０１のエリスリトールと２−エチルヘキサン酸のエステル化合物１４２ｇ得た。
このエステルの化合物は、一般式（Ｉ−１）を基本骨格とするジエステル、トリエステル、テトラエステル、及び一般式（ＩＩ−１）を基本骨格とするジエステルの含有量がそれぞれ７．７質量％、４１．５質量％、２０．４質量％、及び２８．９質量％であった。
【００２７】
（製造例２）エリスリトールとイソアステアリン酸のエステル化合物の調製
イソステアリン酸〔ユニケマ社製、ＰＲＩＳＯＲＩＮ ＩＳＡＣ３５０５〕２２２ｇ（０．７８モル）とエリスリトール〔日研化学（株）、エリスリトール〕３７ｇ（０．３０モル）を撹拌機、温度計、窒素ガス吹込管、水分離管を備えた３００ｍｌの四つ口フラスコに仕込み、還流溶剤としてキシレンを全仕込み量の５質量％の量で加え、混合物を１８０〜２４０℃で１３時間撹拌反応させた。反応終了後、還流溶剤であるキシレンを減圧留去し、活性白土を用いて脱色処理を行い、常法にて脱臭・蒸留処理を行い、目的とする水酸基価５０のエリスリトールとイソステアリン酸のエステル化合物２０４ｇ得た。
【００２８】
（製造例３）エリスリトールとイソステアリン酸及びコハク酸の重縮合物の調製
イソステアリン酸〔ユニケマ製、ＰＲＩＳＯＲＩＮ ＩＳＡＣ３５０５〕１８５ｇ（０．６５モル）とエリスリトール〔日研化学（株）、エリスリトール〕３７ｇ（０．３０モル）を攪拌機、温度計、窒素ガス吹込管、水分離管を供えた３００ｍｌの四つ口フラスコに仕込み、還流溶剤としてキシレンを全仕込量の５質量％の量加え、混合物を１８０〜２１０℃で１０時間攪拌反応させ冷却、次いで、無水コハク酸〔新日本理化（株）、リカシッドＳＡ〕１６ｇ（０．１６モル）を追加し、再び１２０〜２３０℃で１６時間攪拌反応させた。反応終了後、還流溶剤であるキシレンを減圧留去し、活性白土を用いて脱色処理を行ない、常法にて脱臭・蒸留処理を行い、目的とする水酸基価３９のエリスリトールとイソステアリン酸及びコハク酸の重縮合物を１４３ｇ得た。
【００２９】
実施例１〜１２、比較例１〜３（化粧水）
表１に示す化粧水を下記製造法で調製し、得られた各化粧水について、経時安定性、ベタツキのなさ、後肌の保湿感の項目について下記の方法により評価し、その結果を併せて表１に示した。
（製造法）
Ａ：成分１〜７を均一に混合溶解する。
Ｂ：８〜１２を均一に混合溶解する。
Ｃ：Ｂ工程で得られた混合物にＡ工程で得られた混合物を撹拌しながら加え、容器に充填して化粧水を得た。
【００３０】
【表１】

【００３１】
（評価項目）
ａ．経時安定性
ｂ．ベタツキのなさ
ｃ．後肌の保湿感
（評価方法）
ａ．経時安定性
２０℃および４０℃の恒温槽に各試料をいれ、１か月後の外観変化により評価した。
◎：２０℃、４０℃共に変化なし。
○：２０℃は変化ないが４０℃にわずかに変化が見られる。
△：２０℃あるいは４０℃に変化が見られる。
×：２０℃、４０℃共に分離している。
【００３２】
ｂ．ベタツキのなさ、
ｃ．後肌の保湿感
各試料について専門パネル２０名による使用テストを行い塗布１分後の各項目について、パネル各人が（１）絶対評価基準を用いて７段階に評価した各試料の平均値を（２）４段階判定基準により判定した。
（１）絶対評価基準

（２）４段階判定基準
５点を超える ：非常に良い（◎）
３点を超えて５点以下：良好（○）
１点を超えて３点以下：やや不良（△）
１点以下 ：不良（×）
【００３３】
表１より明らかな様に、本発明品はいずれも、べたつかず、後肌の保湿感が良好で、さらに経時安定性にも優れていた。一方、成分（Ａ）の替わりに酢酸トコフェロールを用いた比較例１では後肌の保湿感とベタツキのなさの点で、成分（Ａ）の替わりにトリオクタン酸グリセリル用いた比較例２は後肌の保湿感と経時安定性の点で、エタノールを配合しない比較例３はベタツキのなさと経時安定性の点でそれぞれ特に劣るものであった。
【００３４】

（製造方法）
Ａ：成分１〜５を均一に混合溶解する。
Ｂ：成分６〜１１を均一に混合溶解する。
Ｃ：Ｂ工程で得られた混合物にＡ工程で得られた混合物を撹拌しながら加え、容器に充填して美容液を得た。
実施例１３の美容液は、半透明の優美な外観を有し、ベタツキが無く、後肌の保湿感を発揮し、経時安定性に優れたものであった。
【００３５】

（製造方法）
Ａ：成分１〜７を均一に混合溶解する。
Ｂ：成分８〜１１を均一に混合溶解する。
Ｃ：Ｂ工程で得られた混合物にＡ工程で得られた混合物を撹拌しながら加える。
実施例１４のジェル状アイカラーは、半透明の優美な外観を有し、ベタツキが無く、経時安定性に優れたものであった。また、化粧効果にも優れたものであった。
【００３６】
【発明の効果】本発明の水系化粧料は、透明から半透明の優美な外観を有し、ベタツキが無く、後肌に保湿感を発揮し、経時安定性に優れた水系化粧料である。[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a water-based cosmetic having a transparent to translucent and elegant appearance, having no stickiness, exhibiting a moisturizing feeling on the back skin, and having excellent stability over time. The water-based cosmetic of the present invention does not mean that the oil layer is separated as in the case of a multi-layered cosmetic, but refers to those in which the oil-based component is uniformly dispersed or solubilized in a cosmetic in which the water-based component is a continuous layer. .
[0002]
[Prior art]
Conventionally, as aqueous cosmetics, a surfactant and an oil component such as tocopherol are dissolved in ethanol, and this oil phase component is dispersed in an aqueous phase component to obtain a cloudy cosmetic (for example, see Patent Document 1). There has been known one in which an oily substance is forcibly dispersed using an alkyl-modified carboxyvinyl polymer without using an activator (for example, see Patent Document 2).
[0003]
[Patent Document 1]
JP-A-11-269055 [Patent Document 2]
JP-A-10-120521
[Problems to be solved by the invention]
However, the method of dissolving a surfactant and a specific oil in ethanol cannot completely eliminate the stickiness peculiar to the specific oil, and the oil-based substance is obtained by using an alkyl-modified carboxyvinyl polymer without using a surfactant. In the method of forcibly dispersing, there was a case where a sufficient amount of oil could not be stably compounded, and there was a case where it was not possible to exert a moisturizing feeling on the back skin.
[0005]
[Means for Solving the Problems]
Under these circumstances, the present inventors have conducted intensive studies in order to solve the above-mentioned problems, and as a result, have found that a specific erythritol and / or a derivative of an erythritol condensate, a specific amount of ethanol, a specific amount of a nonionic surfactant And / or an alkyl-modified carboxyvinyl polymer, and a specific amount of water, have a transparent to translucent and elegant appearance, have no stickiness, exhibit a moisturizing feeling on the back skin, and have excellent stability over time. It has been found that an aqueous cosmetic can be obtained, and the present invention has been completed.
That is, in the present invention, the following components (A) are 0.005 to 3% by mass, (B) is 1 to 40% by mass, (C) is 0.01 to 10% by mass, and / or (D) is 0%. It is intended to provide an aqueous cosmetic comprising 0.0005 to 1% by mass and (E) 40 to 98% by mass.
(A) An ester compound of erythritol and / or erythritol condensate with a fatty acid represented by the following general formulas (I) and / or (II), and erythritol and / or erythritol condensate with the ester compound and a polycarboxylic acid Polycondensates, polycondensates of erythritol and / or polycondensates of erythritol condensates with polyvalent carboxylic acids and fatty acids, and polycondensates of erythritol and / or erythritol condensates with fatty acids and polycarboxylic acids One or more selected from the group consisting of

(Wherein, R _{1 to} R ₄ each independently represent a hydrogen atom, a fatty acid residue or a polycarboxylic acid residue, and R ₅ and R ₆ each independently represent a hydrogen atom, a fatty acid residue or a polyvalent carboxylic acid. Represents an acid residue.)
(B) ethanol (C) nonionic surfactant (D) alkyl-modified carboxyvinyl polymer (E) water polycondensation of erythritol and / or a polycondensate of erythritol condensate with polycarboxylic acid and fatty acid The product refers to a polycondensate obtained by an esterification reaction of erythritol and / or a polycondensate of an erythritol condensate with a polycarboxylic acid and a fatty acid.
[0006]
The present invention also includes the components (A), (B), (C) and / or (D), and (E), and among (A), R ₁ in the general formula (I) It is intended to provide an aqueous cosmetic, wherein at least one of R ₄ to R ₄ is a hydrogen atom.
[0007]
Further, the present invention includes components (A), (B), (C) and / or (D), and (E), and among (A), R ₅ in the general formula (II) And at least one of R ₆ is a hydrogen atom.
[0008]
Furthermore, the present invention contains the components (A), (B), (C) and / or (D), and (E), and the component (A) has a hydroxyl value (OHV) of 10 to 150. It is intended to provide a water-based cosmetic characterized by the following.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described.
The component (A) in the aqueous cosmetic composition of the present invention is used for producing a moisturizing feeling on the back skin without stickiness. Component (A) is an ester compound of erythritol and / or erythritol condensate and a fatty acid represented by the following general formula (I) and / or (II), erythritol and / or erythritol condensate, the ester compound and a polycarboxylic acid With erythritol and / or a polycondensate of erythritol condensate with polyvalent carboxylic acid and fatty acid, and polycondensation of erythritol and / or erythritol condensate with fatty acid and polyvalent carboxylic acid One or more selected from the group consisting of
Embedded image

(Wherein, R _{1 to} R ₄ each independently represent a hydrogen atom, a fatty acid residue or a polycarboxylic acid residue, and R ₅ and R ₆ each independently represent a hydrogen atom, a fatty acid residue or a polyvalent carboxylic acid. Represents an acid residue.)
As the fatty acid for forming the component (A), a straight-chain or branched-chain fatty acid having 5 to 28 carbon atoms is preferable, and a branched-chain fatty acid is particularly preferable. Such branched chain fatty acids include, for example, pivalic acid, isoheptanoic acid, 4-ethylpentanoic acid, isooctylic acid, 2-ethylhexanoic acid, 4,5-dimethylhexanoic acid, 4-propylpentanoic acid, isononanoic acid, 2-ethylheptanoic acid, 3,5,5-trimethylhexanoic acid, isodecanoic acid, isododecanoic acid, 2-methyldecanoic acid, 3-methyldecanoic acid, 4-methyldecanoic acid, 5-methyldecanoic acid, 6-methyldecanoic acid, 7-methyldecane Acid, 9-methyldecanoic acid, 6-ethylnonanoic acid, 5-propyloctanoic acid, isolauric acid, 3-methylhendecanoic acid, 6-propylnonanoic acid, isotridecanoic acid, 2-methyldodecanoic acid, 3-methyldodecanoic acid, 4 -Methyldodecanoic acid, 5-methyldodecanoic acid, 11-methyldodecanoic acid, 7-pro Rudecanoic acid, isomyristic acid, 2-methyltridecanoic acid, 12-methyltridecanoic acid, isopalmitic acid, 2-hexyldecanoic acid, 14-methylpentadecanoic acid, 2-ethyltetradecanoic acid, isostearic acid, methyl branched isostearic acid 2-heptylundecanoic acid, 2-isoheptylisoundecanoic acid, 2-ethylhexadecanoic acid, 14-ethylhexadecanoic acid, 14-methylheptadecanoic acid, 15-methylheptadecanoic acid, 16-methylheptadecanoic acid, 2-butyltetradecanoic acid, isoarachinic acid, 3-methylnonadecanoic acid, 2-ethyloctadecanoic acid, isohexanoic acid, 24-methylheptacosanoic acid, 2-ethyltetracosanoic acid, 2-butyldocosanoic acid, 2-hexylicosanoic acid, -Octyloctadecanoic acid, and 2- And the like sills hexadecanoic acid, may be used or these one or. Among them, fatty acids having 8 to 18 carbon atoms, in particular, isooctylic acid (more preferably, 2-ethylhexanoic acid, 4,5-dimethylhexanoic acid), isononanoic acid (more preferably, 2-ethylheptanoic acid, 3,5 , 5-trimethylhexanoic acid), isopalmitic acid, isotridecanoic acid, isostearic acid (more preferably, methyl branched isostearic acid, 2-heptylundecanoic acid, 2-isoheptylisoundecanoic acid) and the like. Branched saturated fatty acids are preferred.
Straight-chain fatty acids are straight-chain fatty acids having 6 to 28 carbon atoms, such as caproic acid, caprylic acid, octylic acid, nonylic acid, decanoic acid, dodecanoic acid, lauric acid, tridecanoic acid, myristic acid, and palmitic acid. , Straight-chain saturated fatty acids such as stearic acid and behenic acid, and linear unsaturated fatty acids such as caproleic acid, undecylenic acid, myristoleic acid, palmitoleic acid, oleic acid, elaidic acid, gondic acid, erucic acid, and brassic acid. And one or more of these can be used.
[0010]
The ester compound represented by the general formula (I) of the component (A) of the present invention comprises one or more monoesters, diesters, triesters, or tetraesters. The ester compound represented by the general formula (II) is composed of one or two kinds of monoester or diester. Further, the ester compounds represented by the general formulas (I) and (II) include two or more ester compounds selected from the ester compounds represented by the general formula (I) and the ester compounds represented by the general formula (II), respectively. It is a mixture.
Further, it is preferable that at least one of R _{1 to} R ₄ in the general formula (I) of the component (A) of the present invention is a hydrogen atom. Further, it is preferable that at least one of R ₅ and R _{6 in} the general formula (II) is a hydrogen atom.
In the present invention, it is preferable that the total content of diesters and triesters having the above-mentioned general formula (I) as a basic skeleton accounts for 20 to 94% by mass, more preferably 40 to 80% by mass of the ester compound.
[0011]
Further, the component (A) of the present invention is a mixture of erythritol and / or an erythritol condensate and an ester compound represented by the general formula (I-1) and / or (II-1) with isooctylic acid. The content of monoester, diester, triester, and tetraester having a general skeleton represented by general formula (I-1) is 0 to 10% by mass, 0 to 30% by mass, 18 to 70% by mass, and 6 to 75% by mass, respectively. And more preferably 0 to 3% by mass, 0 to 20% by mass, 13 to 70% by mass and 8 to 60% by mass, respectively, and more preferably 0 to 3% by mass and 3 to 20% by mass, respectively. , 30 to 70% by mass, and 8 to 40% by mass. The content of the monoester and diester having the general formula (II-1) as a basic skeleton is preferably 0 to 10% by mass and 0 to 50% by mass, respectively, and more preferably 0 to 3% by mass and 0 to 35% by mass, respectively. %, More preferably 0 to 3% by mass, and most preferably 5 to 35% by mass, respectively.
Embedded image

(In the formula, R ₁ ′ to R ₄ ′ each independently represent a hydrogen atom or an isooctylic acid residue, and R ₅ ′ and R ₆ ′ each independently represent a hydrogen atom or an isooctylic acid residue.) as isooctyl acid residues in the _{formula, -C (= O) - (} CH 2 CH 3) CH- (CH 2) 3 -CH 3 [2- ethylhexanoic acid] and -C (= O) - ( CH _{2) 2} - is _{(CH 3) CH- (CH 3} ) CH-CH 3 [4,5- dimethyl-hexanoic acid] and the like.
[0012]
The content of monoester, diester, triester and tetraester is described in the case of general formula (I-1), and the content of monoester and diester is described in the case of general formula (II-1). Is the same in the case of general formula (I) and the case of general formula (II).
[0013]
The polyvalent carboxylic acid used in the present invention for preparing the polycondensate of the component (A) of the present invention includes succinic acid, adipic acid, azelaic acid, sebacic acid and the like having 2 to 10 carbon atoms. Dibasic carboxylic acids are preferred, and dibasic saturated carboxylic acids having 4 to 10 carbon atoms are particularly preferred. These can be used alone or in combination of two or more.
In the preparation of the polycondensate of the component (A) of the present invention, as a raw material, a branched fatty acid having 8 to 18 carbon atoms (preferably a saturated branched fatty acid) and a dibasic carboxylic acid having 2 to 10 carbon atoms (preferably A mixture with a dibasic carboxylic acid having 4 to 10 carbon atoms, a branched fatty acid having 8 to 18 carbon atoms (preferably a branched saturated fatty acid), and a linear fatty acid having 8 to 18 carbon atoms (linear saturated fatty acid); It is preferable to use a mixture with a dibasic carboxylic acid having 2 to 10 carbon atoms (preferably a dibasic carboxylic acid having 4 to 10 carbon atoms). In this case, the molar ratio between the branched fatty acid and the dibasic carboxylic acid (branched fatty acid / 2 dibasic carboxylic acid) is preferably 70/30 to 95/5. The molar ratio with the carboxylic acid (branched fatty acid and linear fatty acid / 2-basic carboxylic acid) is preferably 70/30 to 95/5.
[0014]
The component (A) of the present invention preferably has a hydroxyl value (OHV) (hereinafter simply referred to as “OHV”) of 10 to 150, more preferably 20 to 120, and more preferably 30 to 110. Most preferred. When the OHV is in such a range, the compatibility with the aqueous component becomes better, the stability with the lapse of time is improved, and the effect of easily retaining a moist feeling can be exhibited because the hydration is increased. Here, OHV is defined as a value obtained by a hydroxyl value measurement method in a cosmetic primordium general test method. The component (A) of the present invention is preferably liquid at room temperature, and preferably has a viscosity (25 ° C.) of 100 to 30,000 mPa · s.
The component (A) of the present invention is prepared, for example, by adding 1.5 to 3.5 equivalents of a fatty acid and / or a polycarboxylic acid to 1 equivalent of erythritol, 180 to 240 in the absence of a catalyst or in the presence of a catalyst (for example, tin chloride). The esterification and / or dehydration condensation reaction is carried out at ° C. After completion of the reaction, the reaction mixture can be subjected to a catalyst removal treatment by subjecting it to an adsorption treatment or the like, and a low-molecular-weight component such as unreacted raw materials can be removed by distillation or the like to obtain a final product.
[0015]
The compounding amount of the component (A) is preferably 0.005 to 3% by mass, more preferably 0.01 to 1% by mass based on the total amount of the aqueous cosmetic. By using in this range, the aqueous cosmetic targeted in the present invention has a transparent to translucent and elegant appearance, has no stickiness, exhibits a moisturizing feeling on the back skin, and has excellent stability over time. It becomes. When the amount is less than 0.005% by mass, the moisturizing feeling of the back skin cannot be exhibited. When the amount exceeds 3% by mass, an elegant transparent to translucent appearance and excellent stability over time cannot be obtained, which is not preferable. .
In the present invention, properties of other oil-based components other than the component (A), such as solid oil, semi-solid oil, liquid oil, and volatile oil, if necessary, as long as the effects of the present invention are not impaired. Regardless of, hydrocarbons, oils and fats, waxes, hardened oils, ester oils, fatty acids, higher alcohols, silicone oils, fluorine-based oils, lanolin derivatives, oil-based gelling agents, etc. Can be blended. It is preferable that the compounding amount of these oil agents together with the component (A) does not exceed 5% by mass in the total amount of the aqueous cosmetic.
[0016]
The ethanol of the component (B) used in the present invention can be used without particular limitation as long as it is commonly used in cosmetics. The component (B) of the present invention is contained in order to dissolve the oil agent and the oil-soluble substance such as the component (A) and to reduce stickiness. 20 mass% is more preferable. If the amount is less than 1% by mass, stickiness cannot be reduced and the stability over time is inferior. If the amount exceeds 40% by mass, the moisturizing feeling of the back skin cannot be exerted, which is not preferable.
[0017]
The nonionic surfactant of component (C) and / or the alkyl-modified carboxyvinyl polymer of (D) used in the present invention can uniformly disperse an oil agent and an oil-soluble substance such as component (A), and have stability over time. Included to ensure.
Examples of the nonionic surfactant of the component (C) used in the present invention include glycerin fatty acid ester and its alkylene glycol adduct, polyglycerin fatty acid ester and its alkylene glycol adduct, propylene glycol fatty acid ester and its alkylene glycol addition. Sorbitan fatty acid esters and their alkylene glycol adducts (eg, sorbitan sesquiisostearate, polyoxyethylene sorbitan monooleate), fatty acid esters of sorbitol and its alkylene glycol adducts, polyalkylene glycol fatty acid esters, sucrose fatty acid esters, poly Oxyalkylene alkyl ether, glycerin alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene cured Machine oil (e.g. polyoxyethylene (60) hydrogenated castor oil, etc.), alkylene glycol adducts of lanolin, include polyoxyalkylene-modified silicones can be used alone or in combination of two or more thereof. Further, those having an HLB value of 8 or more are preferable, and those having an HLB value of 8 or more and those having an HLB value of less than 8 may be used in combination.
The blending amount of the nonionic surfactant of the component (C) is not particularly limited, but is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, based on the total amount of the aqueous cosmetic. Within this range, it is possible to obtain a water-based cosmetic which has a delicate feel and a transparent to translucent graceful appearance without stickiness on the back skin and excellent in stability over time. Further, the nonionic surfactant of the component (C) is preferably used in an amount of 0.05 to 100 times the amount of the component (A), and more preferably 0.1 to 20% by mass. In addition, it is preferable to use the nonionic surfactant dissolved in ethanol in order to obtain a water-based cosmetic having excellent stability.
[0018]
The alkyl-modified carboxyvinyl polymer of the component (D) used in the present invention is not particularly limited, but specific examples thereof include acrylic acid / alkyl methacrylate copolymer and the like. Is B. F. Carbopol 1342, Pemulen TR-1, Pemulen TR-2, etc., manufactured by Goodrich Corporation. One or more of these can be used as needed.
The amount of the alkyl-modified carboxyvinyl polymer of the component (D) is not particularly limited, but is preferably 0.0005 to 1% by mass, more preferably 0.001 to 0.5% by mass, based on the total amount of the aqueous cosmetic. Within this range, it is possible to obtain a water-based cosmetic which has a delicate feel and a transparent to translucent graceful appearance without stickiness on the back skin and excellent in stability over time.
[0019]
In the aqueous cosmetic targeted by the present invention, the component (C) or (D) may be used alone, or the components (C) and (D) may be used in combination.
[0020]
The water of the component (E) used in the present invention can be used without particular limitation as long as it is commonly used in cosmetics. The component (E) of the present invention preferably accounts for 40 to 98% by mass, more preferably 50 to 90% by mass, based on the total amount of the aqueous cosmetic. When the amount is less than 40% by mass, a refreshing feel cannot be obtained, and when the amount exceeds 98% by mass, the moisturizing feeling of the back skin cannot be exhibited, which is not preferable.
[0021]
In the aqueous cosmetic of the present invention, in addition to the above-mentioned essential components, aqueous components, medicinal agents, moisturizing components, and water-soluble components commonly used in cosmetics and pharmaceuticals as needed as long as the effects of the present invention are not impaired. Polymers, anti-inflammatory agents, bactericides, preservatives, ultraviolet absorbers, antioxidants, organic and inorganic powders, fragrances, pigments, and the like can be blended.
The aqueous component may be any water-soluble component similar to ethanol as the component (B) and water as the component (E). For example, lower alcohols such as butyl alcohol, propylene glycol, and 1,3- Glycerols such as butylene glycol, dipropylene glycol and polyethylene glycol; glycerols such as glycerin, diglycerin and polyglycerin; and plant extracts such as aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender and rose.
[0022]
Further, a moisturizing component can be added to enhance the moisturizing feeling, and examples thereof include sugars, polysaccharides, and amino acids.
As the water-soluble polymer, guar gum, sodium chondroitin sulfate, hyaluronic acid, gum arabic, sodium alginate, natural ones such as carrageenan, methyl cellulose, hydroxyethyl cellulose, semi-synthetic ones such as carboxymethyl cellulose, carboxyvinyl polymer, polyvinyl Synthetic compounds such as alcohol, polyvinylpyrrolidone, and sodium polyacrylate can be used.
[0023]
In the water-based cosmetic of the present invention, translucent and transparent means that the transmittance of the invention product is 20 to 95 when the transmittance of water is 100, when the light transmittance is measured at an optical path length of 1 cm and the wavelength is 700 nm. Is defined as translucent, and those exceeding 95 are defined as transparent.
[0024]
The aqueous cosmetic of the present invention can be applied to basic cosmetics such as a serum, a lotion, a milky lotion, a cream, and a gel, as well as a face wash, a hair styling agent, and the like. It can also be applied to makeup products such as shadows and foundations.
In addition, these water-based cosmetics can be produced by a method for producing ordinary cosmetics, and the production method is not particularly limited.
[0025]
Next, the present invention will be described with reference to examples, but the present invention is not limited to these examples.
[0026]
【Example】
(Production Example 1) Preparation of ester compound of erythritol and 2-ethylhexanoic acid 178 g (1.24 mol) of 2-ethylhexanoic acid [manufactured by Kyowa Hakko Co., Ltd.] and erythritol [Nikken Chemical Co., Ltd. Erythritol] (72 g, 0.59 mol) was charged into a 300 ml four-necked flask equipped with a stirrer, a thermometer, a nitrogen gas injection tube, and a water separation tube, and xylene was used as a reflux solvent in an amount of 5% by mass of the total amount charged. And the mixture was stirred and reacted at 180 to 240 ° C. for 20 hours. After completion of the reaction, xylene as a reflux solvent is distilled off under reduced pressure, decolorization is performed using activated clay, deodorization and distillation are performed in a conventional manner, and erythritol and 2-ethylhexanoic acid having a desired hydroxyl value of 101 are obtained. 142 g of the ester compound was obtained.
The content of the diester, triester, tetraester and diester having the basic skeleton of the general formula (I-1) is 7.7% by mass. , 41.5 mass%, 20.4 mass%, and 28.9 mass%.
[0027]
(Production Example 2) Preparation of ester compound of erythritol and isoastearic acid 222 g (0.78 mol) of isostearic acid [PRIORIN ISAC3505 manufactured by Unichema] and 37 g (0.30 mol of erythritol [Nikken Chemical Co., Ltd., erythritol]) Mol) was charged into a 300 ml four-necked flask equipped with a stirrer, a thermometer, a nitrogen gas inlet tube, and a water separator tube, and xylene was added as a refluxing solvent in an amount of 5% by mass of the total charged amount. The mixture was stirred and reacted at 240 ° C. for 13 hours. After completion of the reaction, xylene as a reflux solvent is distilled off under reduced pressure, decolorization is performed using activated clay, deodorization and distillation are performed in a conventional manner, and an ester compound of erythritol and isostearic acid having a target hydroxyl value of 50 is obtained. 204 g were obtained.
[0028]
(Production Example 3) Preparation of polycondensate of erythritol, isostearic acid, and succinic acid 185 g (0.65 mol) of isostearic acid (manufactured by Unichema, PRIORIN ISAC3505) and 37 g of erythritol (Nikken Chemical Co., Ltd., erythritol) were added. 30 mol) was charged into a 300 ml four-necked flask equipped with a stirrer, a thermometer, a nitrogen gas injection tube, and a water separation tube, and xylene was added as a refluxing solvent in an amount of 5% by mass based on the total charged amount. The mixture was stirred and reacted at 10 ° C. for 10 hours, cooled, and then 16 g (0.16 mol) of succinic anhydride [Shin Nippon Rika Co., Ltd., RIKACID SA] was added, and the mixture was stirred and reacted again at 120 to 230 ° C. for 16 hours. After completion of the reaction, xylene as a reflux solvent is distilled off under reduced pressure, decolorization is performed using activated clay, deodorization and distillation are performed in a conventional manner, and erythritol, isostearic acid and succinic acid having a desired hydroxyl value of 39 are obtained. 143 g of a polycondensate was obtained.
[0029]
Examples 1 to 12, Comparative Examples 1 to 3 (Lotion)
The lotions shown in Table 1 were prepared by the following production methods, and with respect to each of the obtained lotions, the items of stability over time, lack of stickiness, and moisturizing feeling of the back skin were evaluated by the following method, and the results were combined. The results are shown in Table 1.
(Manufacturing method)
A: Components 1 to 7 are uniformly mixed and dissolved.
B: 8 to 12 are uniformly mixed and dissolved.
C: The mixture obtained in Step A was added to the mixture obtained in Step B while stirring, and the mixture was filled in a container to obtain a lotion.
[0030]
[Table 1]

[0031]
(Evaluation item)
a. Stability over time b. No stickiness c. Moisturizing feeling of the back skin (evaluation method)
a. Stability over time Each sample was placed in a thermostat at 20 ° C. and 40 ° C., and evaluated by a change in appearance after one month.
◎: No change at both 20 ° C. and 40 ° C.
：: No change at 20 ° C., but slight change at 40 ° C.
Δ: Change is observed at 20 ° C. or 40 ° C.
X: Both 20 ° C and 40 ° C are separated.
[0032]
b. No stickiness,
c. After the use test by 20 specialized panels for each sample of the moisturizing feeling of the back skin, for each item 1 minute after application, the average value of each sample evaluated by each panel on a 7-point scale using (1) absolute evaluation criteria (2) Judgment was made based on a four-step judgment standard.
(1) Absolute evaluation criteria

(2) Exceeds 5 points from 4-step criterion: very good (◎)
More than 3 points and 5 points or less: good (○)
More than 1 point and 3 points or less: Somewhat poor (△)
1 point or less: defective (×)
[0033]
As is clear from Table 1, all of the products of the present invention were not sticky, had a good moisturizing feeling on the back skin, and were also excellent in stability over time. On the other hand, in Comparative Example 1 in which tocopherol acetate was used in place of component (A), Comparative Example 2 in which glyceryl trioctanoate was used in place of component (A) in terms of the moisturizing feeling and lack of stickiness of the back skin. Comparative Example 3, which did not contain ethanol, was particularly inferior in terms of moisture retention and stability over time, respectively, in terms of non-stickiness and stability over time.
[0034]

(Production method)
A: Components 1 to 5 are uniformly mixed and dissolved.
B: Components 6 to 11 are uniformly mixed and dissolved.
C: The mixture obtained in Step A was added to the mixture obtained in Step B while stirring, and the mixture was filled in a container to obtain a serum.
The serum of Example 13 had a translucent and elegant appearance, had no stickiness, exhibited a moisturizing feeling on the back skin, and was excellent in stability over time.
[0035]

(Production method)
A: Components 1 to 7 are uniformly mixed and dissolved.
B: Components 8 to 11 are uniformly mixed and dissolved.
C: The mixture obtained in Step A is added to the mixture obtained in Step B while stirring.
The gel eye color of Example 14 had an elegant translucent appearance, had no stickiness, and was excellent in stability over time. In addition, the cosmetic effect was excellent.
[0036]
Industrial Applicability The aqueous cosmetic of the present invention has a transparent to translucent and elegant appearance, has no stickiness, exhibits a moisturizing feeling on the back skin, and has excellent stability over time.

Claims (4)

0.005 to 3% by mass of the following component (A), 1 to 40% by mass of (B), 0.01 to 10% by mass of (C) and / or 0.0005 to 1% by mass of (D). And (E) in an amount of from 40 to 98% by mass.
(A) An ester compound of erythritol and / or erythritol condensate with a fatty acid represented by the following general formulas (I) and / or (II), and erythritol and / or erythritol condensate with the ester compound and a polycarboxylic acid Polycondensates, polycondensates of erythritol and / or polycondensates of erythritol condensates with polyvalent carboxylic acids and fatty acids, and polycondensates of erythritol and / or erythritol condensates with fatty acids and polycarboxylic acids One or more selected from the group consisting of

(Wherein, R _{1 to} R ₄ each independently represent a hydrogen atom, a fatty acid residue or a polycarboxylic acid residue, and R ₅ and R ₆ each independently represent a hydrogen atom, a fatty acid residue or a polyvalent carboxylic acid. Represents an acid residue.)
(B) ethanol (C) nonionic surfactant (D) alkyl-modified carboxyvinyl polymer (E) water. The aqueous cosmetic according to claim 1, wherein at least one of R _{1 to} R _{4 in} the general formula (I) is a hydrogen atom. The aqueous cosmetic according to claim 1, wherein at least one of R ₅ and R _{6 in} the general formula (II) is a hydrogen atom. The aqueous cosmetic according to any one of claims 1 to 3, wherein the component (A) has a hydroxyl value (OHV) of 10 to 150.