JP2004262856A - New silicone derivative and gelatinizing agent - Google Patents

New silicone derivative and gelatinizing agent Download PDF

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Publication number
JP2004262856A
JP2004262856A JP2003055600A JP2003055600A JP2004262856A JP 2004262856 A JP2004262856 A JP 2004262856A JP 2003055600 A JP2003055600 A JP 2003055600A JP 2003055600 A JP2003055600 A JP 2003055600A JP 2004262856 A JP2004262856 A JP 2004262856A
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Prior art keywords
silicone
silicone derivative
represented
oil
general formula
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JP2003055600A
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Japanese (ja)
Inventor
Kenji Hanabusa
謙二 英
Takashi Kato
隆史 加藤
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Shiseido Co Ltd
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Shiseido Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a silicone derivative especially preferably applied to a field of a cosmetic, a drug, an unregulated drug or the like, and capable of stably gelatinizing an oil component (a liquid oil component such as a dimethylpolysiloxane and a cyclic silicone) without being limited by other formulated components. <P>SOLUTION: The silicone derivative is represented by general formulas (I-1) or (I-2) (wherein, R<SB>1</SB>is a group represented by formula (II); R<SB>2</SB>is a 4-30C alkyl group; and m is an integer of 2-200). <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は新規なシリコーン誘導体に関する。さらに詳しくは、ジメチルポリシロキサンや環状シリコーン等の液状の油分をゲル化するために特に好適に用いられる新規なシリコーン誘導体に関する。本発明のシリコーン誘導体は、医薬品、医薬部外品、化粧品等の分野に好適に適用され得る。
【0002】
【従来の技術】
化粧品等の分野において、使用感触や安定性を向上させるために、油分をゲル化させることが有効な手段として用いられている。このような油分ゲル化剤として、12−ヒドロキシステアリン酸を用いた技術(特許文献1参照)、N−アシルアミノ酸アミド(例えばN−ラウロイル−L−グルタミン酸ジブチルアミドなど)またはN−アシルアミノ酸アミン塩(例えばNα,Nω−ジラウロイル−L−リジンステアリルアミン塩など)を用いた技術(特許文献2参照)、ポリエーテル変性シリコーンを用いた技術(特許文献3参照)、パルミチン酸デキストリン等のデキストリン脂肪酸エステルを用いた技術(非特許文献1参照)などが、それぞれ提案されている。
【0003】
【特許文献1】
特開平1−163111号公報
【特許文献2】
特公昭53−27776号公報
【特許文献3】
特開平7−100358号公報
【非特許文献1】
吉村淳「液状油脂ゲル化剤の開発と応用」、フレグランス・ジャーナル、No.33(1978)、26〜31頁
【0004】
【発明が解決しようとする課題】
しかしながら、上記従来のゲル化剤の中で、特許文献1、特許文献2、非特許文献1に示すゲル化剤は、ジメチルポリシロキサンや環状ジメチルポリシロキサン等の液状シリコーン油に溶解しないため、これら油分を用いた系でのゲル化が難しいという問題があった。また特許文献3に示すゲル化剤は、ジメチルポリシロキサンや環状ジメチルポリシロキサンをゲル化できるものの、当該ゲル化のためには水が必要であり、そのため製剤が限定されるという不具合があり、また配合量によってはべたつきが気になる、という問題があった。
【0005】
一方で、ジメチルポリシロキサンや環状ジメチルポリシロキサンは、独特な感触から化粧料への配合が多用されるようになってきており、それに伴い、使用感触や安定性向上の観点から、これら油分を、幅広い製剤で安定してゲル化させたいという要望が高まってきている。
【0006】
【課題を解決するための手段】
本発明者らは鋭意研究を重ねた結果、上記問題点を見事に解決し得る優れた油分ゲル化能を有するシリコーン誘導体を見出し、本発明を完成するに至った。
【0007】
すなわち本発明は、下記一般式(I−1)または(I−2)で表されるシリコーン誘導体を提供する。
【0008】

Figure 2004262856
【0009】
Figure 2004262856
【0010】
(式中、Rは下記式(II)で表される基を表す)
【0011】
Figure 2004262856
【0012】
(式中、Rは炭素数4〜30のアルキル基を表し、mは2〜20の整数を表す)
【0013】
また本発明は、油分をゲル化するためのゲル化剤である、上記シリコーン誘導体を提供する。
【0014】
また本発明は、下記一般式(III)で表されるジメチルポリシロキサン、下記一般式(IV)で表される環状シリコーン、下記一般式(V)で表されるアルキル変性シリコーンの中から選ばれる1種または2種以上の油分をゲル化するためのゲル化剤である、上記のシリコーン誘導体を提供する。
【0015】
Figure 2004262856
【0016】
(式中、xは2〜800の整数を表す)
【0017】
Figure 2004262856
【0018】
(式中、R、Rはそれぞれ独立に水素原子、炭素数1〜6のアルキル基を表し、yは3〜7の整数を表す)
【0019】
Figure 2004262856
【0020】
(式中、Rは炭素数6〜18のアルキル基を表し、zは1または2の整数を表す)
【0021】
【発明の実施の形態】
以下、本発明について詳述する。
【0022】
本発明に係るシリコーン誘導体は、下記一般式(I−1)または(I−2)で表される。
【0023】
Figure 2004262856
【0024】
Figure 2004262856
【0025】
上記一般式(I−1)、(I−2)中、Rは下記式(II)で表される基を表す。
【0026】
Figure 2004262856
【0027】
上記一般式(II)中、Rは炭素数4〜30のアルキル基を表し、より好ましくは炭素数12〜18のアルキル基である。mは2〜20の整数を表し、より好ましくは4〜10の整数を表す。R、mを上記範囲のものとすることにより油分のゲル化をより効果的に行うことができる。また例えば化粧料に配合した場合、他配合成分の影響を受けることなく油分のゲル化を行うことができるので、幅広い剤型の製品の製造が可能である。
【0028】
上記一般式(I−1)、(I−2)で表される化合物は、片末端あるいは側鎖にSi−H結合を有するジメチルポリシロキサン(上記一般式(I−1)、(I−2)中、Rが水素原子を示す化合物)と、末端ビニル基を有する上記一般式(II)で表される基を有する化合物(以下、「末端ビニル基含有セグメント」、あるいは単に「セグメント」と記す場合もある)とのヒドロシリル化反応により得られる。ヒドロシリル化反応は公知の方法により行うことができる。
【0029】
製造の具体例については後述の実施例の欄で記載するような製造方法が例示される。
【0030】
本発明のシリコーン誘導体は、油分をゲル化するのに好適である。ゲル化される油分としては、液状の油分であれば特に限定されるものでないが、化粧品、医薬部外品、医薬品等に用いられる油分が好適であり、特に下記一般式(III)で表されるジメチルポリシロキサン、下記一般式(IV)で表される環状ジメチルポリシロキサン、下記一般式(V)で表されるアルキル変性シリコーンの中から選ばれる1種または2種以上が好ましく用いられる。
【0031】
Figure 2004262856
【0032】
上記一般式(III)中、xは2〜800の整数を表す。一般式(III)で表されるジメチルポリシロキサンは、粘度1.5〜10000mPa・s(25℃)程度である。
【0033】
Figure 2004262856
【0034】
上記一般式(IV)中、R、Rはそれぞれ独立に水素原子、炭素数1〜6のアルキル基を表し、yは3〜7の整数を表す。一般式(IV)で表される環状シリコーンは、具体的には、オクタメチルシクロテトラシロキサン、デカメチルシクロペンタシロキサン、ドデカメチルシクロヘキサシロキサン等が挙げられる。
【0035】
Figure 2004262856
【0036】
上記一般式(V)中、Rは炭素数6〜18のアルキル基を表し、zは1または2の整数を表す。
【0037】
上記一般式(III)〜(V)で表されるシリコーン油以外の油分もゲル化の対象とすることができる。これらの油分としては、例えばスクワラン、流動パラフィン、ワセリン、マイクロクリスタリンワックス、オゾケライト、セレシン、ポリエチレンワックス、フィッシャートロプシュワックス、ミリスチン酸、パルミチン酸、ステアリン酸、ベヘニン酸、オレイン酸、イソステアリン酸、セチルアルコール、ヘキサデシルアルコール、オレイルアルコール、セチル−2−エチルヘキサノエート、2−エチルヘキシルパルミテート、2−オクチルドデシルミリステート、2−オクチルドデシルガムエステル、ネオペンチルグリコール−2−エチルヘキサネート、イソオクチル酸トリグリセライド、2−オクチルドデシルオレエート、イソプロピルミリステート、イソステアリン酸トリグリセライド、ヤシ油脂肪酸トリグリセライド、オリーブ油、アボガド油、ミツロウ、カルナバロウ、キャンデリラロウ、水添ホホバ油、ホホバ油、ミリスチルミリステート、ラノリン、ジメチルポリシロキサン、環状ジメチルポリシロキサン、メチルフェニルポリシロキサン、シリコーンレジン、ポリエーテル変性シリコーン、アミノ変性シリコーン等の各種炭化水素、高級脂肪酸、油脂類、エステル類、高級アルコール、ロウ類、シリコーン類等が挙げられるが、これら例示に限定されるものではない。
【0038】
本発明シリコーン誘導体を油分ゲル化剤として用いる場合、用いる油分の種類にもよるが、本発明シリコーン誘導体:油分=0.1:99.9〜50:50(質量比)程度の範囲で好ましく用いることができる。
【0039】
本発明の新規シリコーン誘導体は、油分をゲル化するゲル化剤として化粧料、医薬部外品、医薬品等に好適に用いられる。本発明のシリコーン誘導体を配合することにより、他の配合成分による制限を受けることなく、任意の幅広い製品形態を採ることができ、安定して油分をゲル化することができる。さらにゲル化能に加えて、剤型に応じた他の効果、例えばクリーム状、乳液状などの剤型ではさっぱり感が得られ、分離等がなく安定した性状を保つことができ、一方、固型状、スティック状などの剤型ではのびがよく、形状安定性が得られる等の効果が得られる。
【0040】
また、本発明シリコーン誘導体を用いた場合、組み合わせる成分によっては、透明な化粧料とすることも可能である。
【0041】
本発明シリコーン誘導体を配合した外用剤組成物の具体例としては、例えば、日焼け止め化粧料、油中水型乳化クリーム等のスキンケア化粧料、ファンデーション、口紅、リップグロス、マスカラ等のメーキャップ化粧料、ヘアワックス、ヘアスティック等の毛髪化粧料、オイルクレンジング等の洗浄料、練り香水等を挙げることができるが、これら例示に限定されるものでない。
【0042】
【実施例】
次に、実施例を挙げて本発明をさらに詳細に説明するが、本発明の技術的範囲をこれらの実施例によってなんら限定されるものでない。
【0043】
I.末端ビニル基含有セグメントの製造
[例1]L−イソロイシルアミノオクタデカン(L−isoleuyclaminooctadecane;L−Ile−NHC1837)の合成
【0044】
Figure 2004262856
【0045】
20g(0.0378モル)のZ−L−Ile−NHC1837に180mlの単留エタノールを加え、加熱溶解した。また、別に窒素気流下、60mlの2−メトキシエタノールに樹脂スパチュラで大さじ2杯のパラジウム炭素を加えた混合溶液を調製した。これを上記エタノール溶液に加え、水素気流下で7時間撹拌した。その後、シリカゲル薄層クロマトグラフィー(展開溶媒;CHCl:CHOH:AcOH=95:5:3(質量比))によってZ基の除去を確認後、自然濾過を2回行ってパラジウム炭素を除去した。得られた溶液を減圧濃縮して溶媒を完全に留去した。これに100mlのdry THFを加えて溶解し、不溶物を自然濾過で除去した。濾液を減圧濃縮し、100mlのヘキサンを加えて再結晶して標題の化合物(C2450O、Mw382.67)を得た。収量12.09g、収率84%であった。
【0046】
[例2]4−ペンテノイルクロリド(4−Pentenoyl chloride)の合成
【0047】
Figure 2004262856
【0048】
10ml(0.098モル)の4−ペンテン酸に40mlのdry CHClを加え、これを氷浴に移した。また、滴下ロートをセットし、ロート内に9.40ml(0.107モル)のオキザリルクロリドと20mlのdry CHClをよく混ざるように加えた。その後ロートからゆっくりと混合溶液を滴下し、すべて滴下した後そのまま室温に戻した。次いで湯浴に移して35℃で一晩撹拌した。これを16℃の水浴中でエバポレーターにて減圧濃縮した。得られた反応生成物をセミミクロ蒸留装置で常圧蒸留した。このとき125℃を目的物として分留した。まず、40℃付近でジクロロメタン、また67℃付近でオキザリルクロリドが蒸散し始めるのでこれを初留とした。しばらくして、急激に温度上昇が始まり100℃付近で本留に切り替えた。122℃で温度が一定となった(オイルバス140℃)。目的物が蒸散し切って温度が118℃に下がったところで後留に切り替えた。このようにして得た標題の化合物(CClO、Mw118.56)は、収量11.56g、収率81%であった。
【0049】
[例3]N−4−n−ペンテノイル−L−イソロイシルアミノオクタデカン(N−4−n−Pentenoyl−L−isoleuyclaminooctadecane)の合成
【0050】
Figure 2004262856
【0051】
16.14g(0.042モル)のL−Ile−NHC1837(例1で得た化合物)を700mlのdry THFに加熱溶解した。これを氷浴に移し、撹拌しながら5.0g(0.042モル)の4−ペンテノイルクロリド(例2で得た化合物)を滴下した。ここに7.1ml(0.056モル)のトリエチルアミンを加えた後、室温に戻してそのまま一晩撹拌した。その後、熱濾過によってNEt・HClを除いた。これを減圧濃縮して200mlの単留ヘキサンを加えて溶解した。これを冷凍庫に静置し、析出したゲルを吸引濾過後、真空乾燥した。得られた固体を300mlの単留酢酸エチルに溶解し、不溶物を自然濾過で除去した。濾液を冷凍庫に静置し、析出したゲルを吸引濾過した後、真空乾燥した。不純物の除去はシリカゲル薄層クロマトグラフィー(展開溶媒;CHCl:CHOH:AcOH=95:5:3(質量比))によって確認した。このようにして得た標題の化合物(C2956、Mw464.43)は、収量17.52g、収率89%であった。
【0052】
II.シリコーン誘導体の製造
[例4]N−4−n−ペンテノイル−L−イソロイシルアミノオクタデカン(N−4−n−Pentenoyl−L−isoleuyclaminooctadecane)を片末端にセグメントとして導入したシロキサンオリゴマーの合成
【0053】
Figure 2004262856
【0054】
20mlのdry トルエンに2.0g(4.3×10−3モル)のN−4−n−ペンテノイル−L−イソロイシルアミノオクタデカン(例3で得た化合物。「セグメントA」)を加熱溶解させた。窒素気流下、40℃のオイルバスで10分撹拌した。ここに60μlのKarstedt’s触媒溶液[ジビニルテトラメチルジシロキサンプラチナム(O)コンプレックス・イン・キシレンズ(divinyltetramethyldisiloxaneplatinum(0)complex in xylenes)]を加えた。そして15分間撹拌後、1.24g(5.6×10−3モル)の1,1,1,3,3,5,5,−ヘプタメチルシロキサン(Mw222.51)を加え、15mlのdry トルエンでよく洗い流した。そのまま一晩撹拌後、FT−IRスペクトルでCH=CH−(910cm−1付近)、Si−H(2150cm−1付近)の吸収が消滅したのを確認して反応を終了した。トルエン溶媒を減圧濃縮してアメ状の反応生成物を得た。これに45mlのメタノールを加えて加熱溶解した。この際、メタノール溶液は黄色を帯びており、白金のクラスターと思われる黒色の不溶物が現れた。熱濾過で不溶物を除き、濾液を室温でゲル化させると、生成物のゲルとともに再び黒色クラスターが析出した。熱濾過で不純物を除去し、不純物が析出しなくなるまで析出と熱濾過を繰り返した。最後に冷凍庫でゲル化させて吸引濾取して、本発明シリコーン誘導体1(C3678Si、Mw687.27)を得た。収量2.96g、収率86%であった。
【0055】
当該例4におけるH−NMRスペクトル(溶媒:重クロロホルム)測定結果は以下のとおりであった。
【0056】
Figure 2004262856
【0057】
なお、H末端ジメチルポリシロキサン、セグメントA、本発明シリコーン誘導体1のFT−IR測定結果は以下のとおりであった。
【0058】
〈H末端ジメチルポリシロキサン〉
2150cm−1(nSi−H)。
【0059】
〈セグメントA〉
3289cm−1(νN−H,amide),1635cm−1(νC=O,amide I),911cm−1(δCH,CH=CH−)。
【0060】
〈本発明シリコーン誘導体1〉
3287cm−1(νN−H,amide),1633cm−1(νC=O,amide I),1257cm−1(νSi−C,Si−CH),1221cm−1(δCH,−CH−Si−),1049cm−1(νSi−O−Si),disappeared 2150cm−1(νSi−H),disappeared 911cm−1(δCH,CH=CH−)。
【0061】
[例5]N−4−n−ペンテノイル−L−イソロイシルアミノオクタデカン(N−4−n−Pentenoyl−L−isoleuyclaminooctadecane)をセグメントとして導入したシロキサンオリゴマーの合成
【0062】
Figure 2004262856
【0063】
25mlのdryトルエンに3.0g(6.45×10−3モル)のN−4−n−ペンテノイル−L−イソロイシルアミノオクタデカン(例3で得た化合物。「セグメントA」)を加熱溶解させた。窒素気流下、40℃のオイルバスで10分撹拌した。ここに70μlのKarstedt’s触媒溶液[ジビニルテトラメチルジシロキサンプラチナム(O)コンプレックス・イン・キシレンズ(divinyltetramethyldisiloxaneplatinum(0)complex in xylenes)]を加えた。そして15分間撹拌後、1.87g(8.39×10−3モル)の1,1,1,3,3,5,5,−ヘプタメチルシロキサン(Mw222.51)を加え、5mlのdry トルエンでよく洗い流した。そのまま一晩撹拌後、FT−IRスペクトルでCH=CH−(910cm−1付近)、Si−H(2150cm−1付近)の吸収が消滅したのを確認して反応を終了した。トルエン溶媒を減圧濃縮し、これに120mlのメタノールを加えて加熱溶解した。この際、メタノール溶液は黄色を帯びていた。濾液を室温でゲル化させると、生成物のゲルとともに黒色クラスターが析出したので熱濾過によって黒色クラスターを除去した。ゲル化と熱濾過を不純物が析出しなくなるまで繰り返すことでメタノール溶液の黄色は薄くなった。最後に150mlのメタノール溶液を冷凍庫でゲル化させて吸引濾取して、本発明シリコーン誘導体2(C3678Si、Mw687.27)を得た。収量3.85g、収率87%であった。
【0064】
[例6]N−10−n−ウンデセノイル−L−イソロイシルアミノオクタデカン(N−4−n−Undecenoyl−L−isoleuyclaminooctadecane)を片末端にセグメントとして導入したシロキサンオリゴマーの合成
【0065】
Figure 2004262856
【0066】
20mlのdryトルエンに2.0g(3.7×10−3モル)のN−4−n−ウンデセノイル−L−イソロイシルアミノオクタデカンを加え、加熱溶解し、窒素気流下、30〜50℃のオイルバスでPt触媒(Platinum(0)−1,3−divinyl−1,1,3,3−tetramethyldisiloxane complex solution in xylene)を100μL、1,1,1,3,3,5,5−ヘプタメチルトリシロキサンを1.05g(4.7×10−3モル)を加え、一晩撹拌還流した。IRでH−Siの吸収(2150cm−1)、CH=CH−の吸収(910cm−1)の消失を確認後、反応を終了した。得られた溶液を減圧濃縮して、溶媒を完全に留去した。その後単留メタノールを加えて加熱溶解し、一晩冷凍庫に静置した。析出物を吸引ろ過後、真空乾燥して、標題の本発明シリコーン誘導体を得た。収量2.12g、収率75%であった。
【0067】
[例7]N−10−n−ウンデセノイル−L−イソロイシルアミノオクタデカン(N−4−n−Undecenoyl−L−isoleuyclaminooctadecane)をセグメントとして導入したシロキサンオリゴマーの合成
【0068】
Figure 2004262856
【0069】
40mlのdryトルエンに2.0g(3.6×10−3モル)のN−4−n−ウンデセノイル−L−イソロイシルアミノオクタデカンを加え加熱溶解し、窒素気流下、30〜50℃のオイルバスでPt触媒(Platinum(0)−1,3−divinyl−1,1,3,3−tetramethyldisiloxane complex solution in xylene)を100μL、1,1,1,3,5,5,5−ヘプタメチルトリシロキサンを1.1g(4.7×10−3モル)を加え一晩撹拌還流した。IRでH−Siの吸収(2150cm−1)、CH=CH−の吸収(910cm−1)の消失を確認後、反応を終了した。
【0070】
得られた溶液を減圧濃縮して、溶媒を完全に留去した。その後単留メタノールを加えて加熱溶解し、一晩冷凍庫に静置した。析出物を吸引ろ過後、真空乾燥したて、標題の本発明シリコーン誘導体を得た。収量2.26g、収率80%であった。
【0071】
III.ゲル化能
以下の方法により本発明シリコーン誘導体のゲル化能を評価した。
【0072】
[ゲル化能]
上記例4の合成で用いたセグメントAおよび生成物であるシリコーン誘導体1、上記例5の合成の生成物であるシリコーン誘導体2を用いて、ジメチルポリシロキサン(6mPa・s)、環状シリコーン(デカメチルシクロペンタシロキサン)、アルキル変性シリコーンに対するゲル化能を評価した。なお、セグメントA(末端ビニル基含有セグメント)はゲル化剤として知られている。
【0073】
すなわち、上記セグメントA、シリコーン誘導体1、シリコーン誘導体2のいずれかを0.5gと、ジメチルポリシロキサン、デカメチルシクロペンタシロキサン、アルキル変性シリコーンのいずれかを9.5gとり、これらを容量50mLのガラスバイアルに入れ、90℃で加熱して溶解させた後、室温に2時間放置したときの内容物(収容物)の状態を、傾斜法により観察した。傾斜法とは、ガラスバイアルを45°に傾けたときの内容物の状態を下記の指標で評価するものである。結果を表1に示す。
(評価基準)
○: 内容物の流動性がなくゲル化している
△: 内容物の流動性がないが析出物があり不均一
×: 内容物の流動性がある
【0074】
【表1】
Figure 2004262856
【0075】
なお表1中、「アルキル変性シリコーン」(*)は上記一般式(V)(式中、R=C17、z=1を示す)で表される化合物である。
【0076】
表1の結果から明らかなように、本発明に係るシリコーン誘導体1、2はいずれも油分をゲル化できた。なお、セグメントAは90℃では溶解せず、油分のゲル化ができなかった。
【0077】
【発明の効果】
以上詳述したように、本発明の新規シリコーン誘導体は、例えば化粧品、医薬品、医薬部外品等に用いた場合、他配合成分の制限を受けることなく、シリコーン油などの油分を安定してゲル化することができる。したがって、本発明の新規シリコーン誘導体を用いることによって幅広い剤型の化粧品、医薬品、医薬部外品等の調製が可能である。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to novel silicone derivatives. More specifically, the present invention relates to a novel silicone derivative particularly preferably used to gel a liquid oil such as dimethylpolysiloxane and cyclic silicone. The silicone derivative of the present invention can be suitably applied to the fields of pharmaceuticals, quasi-drugs, cosmetics and the like.
[0002]
[Prior art]
In the field of cosmetics and the like, gelation of oils has been used as an effective means to improve the feel and stability of use. As such an oil gelling agent, a technique using 12-hydroxystearic acid (see Patent Document 1), an N-acylamino acid amide (for example, N-lauroyl-L-glutamic acid dibutylamide and the like) or an N-acylamino acid amine salt (e.g. N α, N ω - dilauroyl -L- lysine stearylamine salt, etc.) technology (see Patent Document 2) using, (see Patent Document 3) technology using a polyether-modified silicone, dextrin such as dextrin palmitate Techniques using fatty acid esters (see Non-Patent Document 1) and the like have been proposed.
[0003]
[Patent Document 1]
JP-A-1-163111 [Patent Document 2]
JP-B-53-27776 [Patent Document 3]
Japanese Patent Application Laid-Open No. 7-100358 [Non-Patent Document 1]
Jun Yoshimura, "Development and Application of Liquid Fat Gelling Agent", Fragrance Journal, No. 33 (1978), pp. 26-31
[Problems to be solved by the invention]
However, among the above conventional gelling agents, the gelling agents disclosed in Patent Document 1, Patent Document 2, and Non-Patent Document 1 do not dissolve in liquid silicone oils such as dimethylpolysiloxane and cyclic dimethylpolysiloxane. There was a problem that gelation in a system using oil was difficult. Further, although the gelling agent shown in Patent Document 3 can gel dimethylpolysiloxane or cyclic dimethylpolysiloxane, water is required for the gelation, and there is a problem that the preparation is limited, and There was a problem that stickiness was anxious depending on the blending amount.
[0005]
On the other hand, dimethylpolysiloxane and cyclic dimethylpolysiloxane are increasingly used in cosmetics because of their unique feel.Accordingly, from the viewpoint of improving the feel and stability of use, these oils are used. There is an increasing demand for stable gelation in a wide range of formulations.
[0006]
[Means for Solving the Problems]
As a result of intensive studies, the present inventors have found a silicone derivative having an excellent oil-gelling ability capable of solving the above problems, and completed the present invention.
[0007]
That is, the present invention provides a silicone derivative represented by the following general formula (I-1) or (I-2).
[0008]
Figure 2004262856
[0009]
Figure 2004262856
[0010]
(Wherein, R 1 represents a group represented by the following formula (II))
[0011]
Figure 2004262856
[0012]
(Wherein, R 2 represents an alkyl group having 4 to 30 carbon atoms, and m represents an integer of 2 to 20)
[0013]
The present invention also provides the above silicone derivative, which is a gelling agent for gelling an oil component.
[0014]
Further, the present invention is selected from dimethylpolysiloxane represented by the following general formula (III), cyclic silicone represented by the following general formula (IV), and alkyl-modified silicone represented by the following general formula (V) The silicone derivative is provided as a gelling agent for gelling one or more oil components.
[0015]
Figure 2004262856
[0016]
(Where x represents an integer of 2 to 800)
[0017]
Figure 2004262856
[0018]
(Wherein, R 3 and R 4 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, and y represents an integer of 3 to 7)
[0019]
Figure 2004262856
[0020]
(Wherein, R 5 represents an alkyl group having 6 to 18 carbon atoms, and z represents an integer of 1 or 2)
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail.
[0022]
The silicone derivative according to the present invention is represented by the following general formula (I-1) or (I-2).
[0023]
Figure 2004262856
[0024]
Figure 2004262856
[0025]
In the general formulas (I-1) and (I-2), R 1 represents a group represented by the following formula (II).
[0026]
Figure 2004262856
[0027]
In the general formula (II), R 2 represents an alkyl group having 4 to 30 carbon atoms, and more preferably an alkyl group having 12 to 18 carbon atoms. m represents an integer of 2 to 20, and more preferably an integer of 4 to 10. By setting R 2 and m within the above ranges, gelation of the oil can be more effectively performed. In addition, for example, when blended in a cosmetic, the gelling of the oil can be performed without being affected by other blending components, so that a wide range of dosage form products can be manufactured.
[0028]
Compounds represented by the above general formulas (I-1) and (I-2) are dimethylpolysiloxanes having a Si—H bond at one end or a side chain (the above general formulas (I-1) and (I-2) during), and R 1 is a compound that shows a hydrogen atom), the compound having a group represented by the general formula (II) having a terminal vinyl group (hereinafter, the "terminal vinyl group-containing segment", or simply "segment" In some cases). The hydrosilylation reaction can be performed by a known method.
[0029]
As a specific example of the production, a production method as described in the section of Examples described later is exemplified.
[0030]
The silicone derivative of the present invention is suitable for gelling oil. The oil to be gelled is not particularly limited as long as it is a liquid oil, but oils used in cosmetics, quasi-drugs, pharmaceuticals, and the like are preferable, and particularly expressed by the following general formula (III). One or more selected from the group consisting of dimethylpolysiloxane, cyclic dimethylpolysiloxane represented by the following general formula (IV), and alkyl-modified silicone represented by the following general formula (V) are preferably used.
[0031]
Figure 2004262856
[0032]
In the general formula (III), x represents an integer of 2 to 800. The dimethylpolysiloxane represented by the general formula (III) has a viscosity of about 1.5 to 10,000 mPa · s (25 ° C.).
[0033]
Figure 2004262856
[0034]
In the general formula (IV), R 3 and R 4 each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and y represents an integer of 3 to 7. Specific examples of the cyclic silicone represented by the general formula (IV) include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.
[0035]
Figure 2004262856
[0036]
In the general formula (V), R 5 represents an alkyl group having 6 to 18 carbon atoms, and z represents an integer of 1 or 2.
[0037]
Oils other than the silicone oils represented by the general formulas (III) to (V) can also be subjected to gelation. Examples of these oils include squalane, liquid paraffin, petrolatum, microcrystalline wax, ozokerite, ceresin, polyethylene wax, Fischer-Tropsch wax, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, isostearic acid, cetyl alcohol, Hexadecyl alcohol, oleyl alcohol, cetyl-2-ethylhexanoate, 2-ethylhexyl palmitate, 2-octyldodecyl myristate, 2-octyldodecyl gum ester, neopentylglycol-2-ethylhexanate, triglyceride isooctylate, 2-octyldodecyl oleate, isopropyl myristate, isostearic acid triglyceride, coconut oil fatty acid triglyceride, olive oil Avocado oil, beeswax, carnauba wax, candelilla wax, hydrogenated jojoba oil, jojoba oil, myristyl myristate, lanolin, dimethylpolysiloxane, cyclic dimethylpolysiloxane, methylphenylpolysiloxane, silicone resin, polyether-modified silicone, amino-modified silicone And other various hydrocarbons, higher fatty acids, oils and fats, esters, higher alcohols, waxes, silicones, and the like, but are not limited to these examples.
[0038]
When the silicone derivative of the present invention is used as an oil component gelling agent, it is preferably used in a range of about 0.1: 99.9 to 50:50 (mass ratio) of the silicone derivative of the present invention: oil component, depending on the type of oil component used. be able to.
[0039]
The novel silicone derivative of the present invention is suitably used in cosmetics, quasi-drugs, pharmaceuticals and the like as a gelling agent for gelling oil. By blending the silicone derivative of the present invention, an arbitrary wide product form can be adopted without being restricted by other blending components, and the oil component can be gelled stably. Furthermore, in addition to the gelling ability, other effects depending on the dosage form, for example, a creamy form, a milky liquid form, etc., provide a refreshing feeling and can maintain stable properties without separation or the like. Dosage forms such as molds and sticks have good spreadability and have effects such as obtaining shape stability.
[0040]
When the silicone derivative of the present invention is used, a transparent cosmetic can be obtained depending on the components to be combined.
[0041]
Specific examples of the external preparation composition containing the silicone derivative of the present invention include, for example, sunscreen cosmetics, skin care cosmetics such as water-in-oil emulsion creams, foundations, lipsticks, lip gloss, makeup cosmetics such as mascara, Hair cosmetics such as hair waxes and hair sticks, cleaning agents such as oil cleansing, kneading perfumes and the like can be mentioned, but are not limited to these examples.
[0042]
【Example】
Next, the present invention will be described in more detail with reference to Examples, but the technical scope of the present invention is not limited by these Examples.
[0043]
I. Production of a segment containing a terminal vinyl group [Example 1] Synthesis of L-isoleucylaminooctadecane (L-Ile-NHC 18 H 37 )
Figure 2004262856
[0045]
180 ml of single distilled ethanol was added to 20 g (0.0378 mol) of ZL-Ile-NHC 18 H 37 and dissolved by heating. Separately, a mixed solution was prepared by adding 2 tablespoons of palladium carbon to 60 ml of 2-methoxyethanol with a resin spatula under a nitrogen stream. This was added to the above ethanol solution, and stirred for 7 hours under a hydrogen stream. Then, after confirming removal of the Z group by silica gel thin layer chromatography (developing solvent; CH 3 Cl: CH 3 OH: AcOH = 95: 5: 3 (mass ratio)), natural filtration was performed twice to remove palladium carbon. Removed. The obtained solution was concentrated under reduced pressure to completely remove the solvent. To this was added 100 ml of dry THF for dissolution, and the insoluble matter was removed by gravity filtration. The filtrate was concentrated under reduced pressure, added with 100 ml of hexane and recrystallized to obtain the title compound (C 24 H 50 N 2 O, Mw 382.67). The yield was 12.09 g, and the yield was 84%.
[0046]
Example 2 Synthesis of 4-Pentenoyl Chloride
Figure 2004262856
[0048]
The dry CH 2 Cl 2 in 40ml was added to 4-pentenoic acid of 10 ml (0.098 mol) was transferred to a ice bath. Further, a dropping funnel was set, and 9.40 ml (0.107 mol) of oxalyl chloride and 20 ml of dry CH 2 Cl 2 were added to the funnel so as to be well mixed. Thereafter, the mixed solution was slowly dropped from the funnel, and the whole was dropped, and then returned to room temperature. Then, the mixture was transferred to a water bath and stirred at 35 ° C. overnight. This was concentrated under reduced pressure in a water bath at 16 ° C. using an evaporator. The obtained reaction product was subjected to atmospheric distillation using a semi-micro distillation apparatus. At this time, fractionation was performed at 125 ° C. as the target substance. First, dichloromethane started to evaporate at about 40 ° C. and oxalyl chloride started to evaporate at about 67 ° C., which was used as the first distillation. After a while, the temperature began to rise sharply, and the temperature was switched to main distillation at around 100 ° C. The temperature became constant at 122 ° C. (oil bath 140 ° C.). When the target substance had completely evaporated and the temperature had dropped to 118 ° C., it was switched to rear distillation. The title compound (C 5 H 7 ClO, Mw 118.56) thus obtained was 11.56 g in yield 81%.
[0049]
[Example 3] Synthesis of N-4-n-pentenoyl-L-isoleucylaminooctadecane (N-4-n-Pentenoyl-L-isoleuylclaminooctadecane)
Figure 2004262856
[0051]
16.14 g (0.042 mol) of L-Ile-NHC 18 H 37 (the compound obtained in Example 1) was dissolved by heating in 700 ml of dry THF. This was transferred to an ice bath, and 5.0 g (0.042 mol) of 4-pentenoyl chloride (the compound obtained in Example 2) was added dropwise with stirring. After 7.1 ml (0.056 mol) of triethylamine was added thereto, the mixture was returned to room temperature and stirred overnight. Thereafter, NEt 3 .HCl was removed by hot filtration. This was concentrated under reduced pressure and dissolved by adding 200 ml of simple distillation hexane. This was allowed to stand in a freezer, and the precipitated gel was vacuum-filtered after suction filtration. The obtained solid was dissolved in 300 ml of single-distilled ethyl acetate, and insolubles were removed by gravity filtration. The filtrate was allowed to stand in a freezer, and the precipitated gel was suction-filtered and dried under vacuum. Removal of the impurities was confirmed by silica gel thin layer chromatography (developing solvent; CH 3 Cl: CH 3 OH: AcOH = 95: 5: 3 (mass ratio)). The title compound (C 29 H 56 N 2 O 2 , Mw 464.43) thus obtained was 17.52 g in yield 89%.
[0052]
II. Production of Silicone Derivatives [Example 4] Synthesis of siloxane oligomer having N-4-n-pentenoyl-L-isoleucylaminooctadecane (N-4-n-pentenoyl-L-isoleuylclaminooctadecane) introduced as a segment at one end ]
Figure 2004262856
[0054]
2.0 g (4.3 × 10 −3 mol) of N-4-n-pentenoyl-L-isoleucylaminooctadecane (the compound obtained in Example 3; “Segment A”) is dissolved in 20 ml of dry toluene by heating. I let it. The mixture was stirred in a 40 ° C. oil bath for 10 minutes under a nitrogen stream. To this was added 60 μl of Karstedt's catalyst solution [divinyltetramethyldisiloxane platinum (O) complex in xylenes (divinyltetramethyldisiloxane) (x) complex in xylenes]. After stirring for 15 minutes, 1.24 g (5.6 × 10 −3 mol) of 1,1,1,3,3,5,5-heptamethylsiloxane (Mw 222.51) was added, and 15 ml of dry toluene was added. Washed off well. As After stirring overnight, (around 910 cm -1) CH 2 = CH- with FT-IR spectrum, absorption of Si-H (2150 cm around -1) The reaction was terminated after confirming that disappeared. The toluene solvent was concentrated under reduced pressure to obtain a candy-like reaction product. To this, 45 ml of methanol was added and dissolved by heating. At this time, the methanol solution was yellowish, and black insolubles appeared to be platinum clusters. When the insolubles were removed by hot filtration and the filtrate was gelled at room temperature, black clusters precipitated again with the product gel. The impurities were removed by hot filtration, and the precipitation and hot filtration were repeated until no impurities were deposited. Finally, the mixture was gelled in a freezer and collected by suction filtration to obtain a silicone derivative 1 of the present invention (C 36 H 78 N 2 O 4 Si 3 , Mw 687.27). The yield was 2.96 g, and the yield was 86%.
[0055]
The 1 H-NMR spectrum (solvent: deuterated chloroform) measurement result in Example 4 was as follows.
[0056]
Figure 2004262856
[0057]
In addition, the FT-IR measurement results of the H-terminal dimethylpolysiloxane, the segment A, and the silicone derivative 1 of the present invention were as follows.
[0058]
<H-terminal dimethylpolysiloxane>
2150 cm -1 (nSi-H).
[0059]
<Segment A>
3289 cm -1 (νN-H, amide), 1635 cm -1 (νC = O, amide I), 911 cm -1 (δCH, CH 2 = CH-).
[0060]
<Inventive silicone derivative 1>
3287 cm -1 (νN-H, amide), 1633 cm -1 (νC = O, amide I), 1257 cm -1 (νSi-C, Si-CH 3 ), 1221 cm -1 (δCH 2 , -CH 2 -Si- ), 1049 cm -1 (νSi-O-Si), displaced 2150 cm -1 (νSi-H), displaced 911 cm -1 (δCH, CH 2 = CH-).
[0061]
[Example 5] Synthesis of siloxane oligomer into which N-4-n-pentenoyl-L-isoleucylaminooctadecane (N-4-n-pentenoyl-L-isoleuylclaminooctadecane) was introduced as a segment
Figure 2004262856
[0063]
3.0 g (6.45 × 10 −3 mol) of N-4-n-pentenoyl-L-isoleucylaminooctadecane (the compound obtained in Example 3; “Segment A”) was dissolved in 25 ml of dry toluene by heating. I let it. The mixture was stirred in a 40 ° C. oil bath for 10 minutes under a nitrogen stream. To this was added 70 μl of Karstedt's catalyst solution [divinyltetramethyldisiloxane platinum (O) complex in xylenes (divinyltetramethyldisiloxane) (x) complex in xylenes]. After stirring for 15 minutes, 1.87 g (8.39 × 10 −3 mol) of 1,1,1,3,3,5,5-heptamethylsiloxane (Mw 222.51) was added, and 5 ml of dry toluene was added. Washed off well. As After stirring overnight, (around 910 cm -1) CH 2 = CH- with FT-IR spectrum, absorption of Si-H (2150 cm around -1) The reaction was terminated after confirming that disappeared. The toluene solvent was concentrated under reduced pressure, and 120 ml of methanol was added thereto and dissolved by heating. At this time, the methanol solution was yellow. When the filtrate was gelled at room temperature, black clusters were precipitated together with the product gel. The black clusters were removed by hot filtration. The yellowing of the methanol solution became lighter by repeating gelation and hot filtration until no impurities were precipitated. Finally, 150 ml of the methanol solution was gelled in a freezer and collected by suction filtration to obtain a silicone derivative 2 of the present invention (C 36 H 78 N 2 O 4 Si 3 , Mw 687.27). The yield was 3.85 g, and the yield was 87%.
[0064]
[Example 6] Synthesis of siloxane oligomer having N-10-n-undecenoyl-L-isoleucylaminooctadecane (N-4-n-Undecenoyl-L-isoleuylclaminooctadecane) introduced as a segment at one end.
Figure 2004262856
[0066]
2.0 g (3.7 × 10 −3 mol) of N-4-n-undecenoyl-L-isoleucylaminooctadecane was added to 20 ml of dry toluene, dissolved by heating, and heated at 30 to 50 ° C. under a nitrogen stream. 100 μL of Pt catalyst (Platinum (0) -1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex solution in xylene), 1,1,1,3,3,5,5-heptamethyl in an oil bath 1.05 g (4.7 × 10 −3 mol) of trisiloxane was added, and the mixture was stirred and refluxed overnight. Absorption of H-Si by IR (2150cm -1), after confirming the disappearance of the absorption of CH 2 = CH- (910cm -1) , the reaction was terminated. The obtained solution was concentrated under reduced pressure, and the solvent was completely distilled off. Thereafter, a simple distillation methanol was added and dissolved by heating, and the mixture was allowed to stand in a freezer overnight. The precipitate was suction-filtered and dried under vacuum to obtain the title silicone derivative of the present invention. The yield was 2.12 g, and the yield was 75%.
[0067]
[Example 7] Synthesis of siloxane oligomer in which N-10-n-undecenoyl-L-isoleucylaminooctadecane (N-4-n-Undecenoyl-L-isoleuylclaminooctadecane) was introduced as a segment.
Figure 2004262856
[0069]
To 40 ml of dry toluene, 2.0 g (3.6 × 10 −3 mol) of N-4-n-undecenoyl-L-isoleucylaminooctadecane was added and dissolved by heating. The oil was heated at 30 to 50 ° C. under a nitrogen stream. 100 μL of Pt catalyst (Platinum (0) -1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex solution in xylene), 1,1,1,3,5,5,5-heptamethyltriene by bus 1.1 g (4.7 × 10 −3 mol) of siloxane was added, and the mixture was stirred and refluxed overnight. Absorption of H-Si by IR (2150cm -1), after confirming the disappearance of the absorption of CH 2 = CH- (910cm -1) , the reaction was terminated.
[0070]
The obtained solution was concentrated under reduced pressure, and the solvent was completely distilled off. Thereafter, a simple distillation methanol was added and dissolved by heating, and the mixture was allowed to stand in a freezer overnight. The precipitate was suction-filtered and dried under vacuum to obtain the title silicone derivative of the present invention. The yield was 2.26 g, and the yield was 80%.
[0071]
III. Gelling ability The gelling ability of the silicone derivative of the present invention was evaluated by the following method.
[0072]
[Gelling ability]
Using the segment A used in the synthesis of Example 4 and the silicone derivative 1 as the product, and the silicone derivative 2 as the product of the synthesis in Example 5, dimethylpolysiloxane (6 mPa · s) and cyclic silicone (decamethyl) were used. The gelling ability for cyclopentasiloxane) and alkyl-modified silicone was evaluated. In addition, the segment A (the segment containing a terminal vinyl group) is known as a gelling agent.
[0073]
That is, 0.5 g of any of the above-mentioned segment A, silicone derivative 1 and silicone derivative 2 and 9.5 g of any of dimethylpolysiloxane, decamethylcyclopentasiloxane and alkyl-modified silicone are taken, and these are placed in a 50-mL glass. After placing in a vial and dissolving by heating at 90 ° C., the state of the contents (containment) when left at room temperature for 2 hours was observed by a tilt method. The tilt method evaluates the state of the contents when the glass vial is tilted at 45 ° using the following index. Table 1 shows the results.
(Evaluation criteria)
:: The content is not fluid and gelled. △: The content is not fluid, but there is a precipitate and non-uniform. X: The content is fluid.
[Table 1]
Figure 2004262856
[0075]
In Table 1, “alkyl-modified silicone” (*) is a compound represented by the above general formula (V) (in the formula, R 5 = C 8 H 17 and z = 1).
[0076]
As is clear from the results in Table 1, all of the silicone derivatives 1 and 2 according to the present invention could gel the oil component. In addition, the segment A did not melt at 90 ° C. and could not gel the oil.
[0077]
【The invention's effect】
As described in detail above, the novel silicone derivative of the present invention, when used in, for example, cosmetics, pharmaceuticals, and quasi-drugs, can stably gel oils such as silicone oil without being restricted by other ingredients. Can be Therefore, by using the novel silicone derivative of the present invention, it is possible to prepare cosmetics, pharmaceuticals, quasi-drugs and the like in a wide range of dosage forms.

Claims (3)

下記一般式(I−1)または(I−2)で表されるシリコーン誘導体。
Figure 2004262856
Figure 2004262856
(式中、Rは下記式(II)で表される基を表す)
Figure 2004262856
(式中、Rは炭素数4〜30のアルキル基を表し、mは2〜20の整数を表す)
A silicone derivative represented by the following general formula (I-1) or (I-2).
Figure 2004262856
Figure 2004262856
(Wherein, R 1 represents a group represented by the following formula (II))
Figure 2004262856
(Wherein, R 2 represents an alkyl group having 4 to 30 carbon atoms, and m represents an integer of 2 to 20)
油分をゲル化するためのゲル化剤である、請求項1記載のシリコーン誘導体。The silicone derivative according to claim 1, which is a gelling agent for gelling an oil component. 下記一般式(III)で表されるジメチルポリシロキサン、下記一般式(IV)で表される環状シリコーン、下記一般式(V)で表されるアルキル変性シリコーンの中から選ばれる1種または2種以上の油分をゲル化するためのゲル化剤である、請求項1記載のシリコーン誘導体。
Figure 2004262856
(式中、xは2〜800の整数を表す)
Figure 2004262856
(式中、R、Rはそれぞれ独立に水素原子、炭素数1〜6のアルキル基を表し、yは3〜7の整数を表す)
Figure 2004262856
(式中、Rは炭素数6〜18のアルキル基を表し、zは1または2の整数を表す)
One or two selected from dimethylpolysiloxane represented by the following general formula (III), cyclic silicone represented by the following general formula (IV), and alkyl-modified silicone represented by the following general formula (V) The silicone derivative according to claim 1, which is a gelling agent for gelling the oil component.
Figure 2004262856
(Where x represents an integer of 2 to 800)
Figure 2004262856
(Wherein, R 3 and R 4 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, and y represents an integer of 3 to 7)
Figure 2004262856
(Wherein, R 5 represents an alkyl group having 6 to 18 carbon atoms, and z represents an integer of 1 or 2)
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004262857A (en) * 2003-03-03 2004-09-24 Shiseido Co Ltd External preparation composition
JP2011057872A (en) * 2009-09-10 2011-03-24 Ricoh Co Ltd Material for inkjet ink composition and inkjet ink composition
US8003086B2 (en) 2006-05-09 2011-08-23 L'oreal S.A. Bis-urea compounds and compositions and method of cosmetic treatment
JP2012215835A (en) * 2011-03-31 2012-11-08 Ricoh Co Ltd Rewritable recording medium, method for manufacturing rewritable recording medium, image recording set, and image recording method
JP2012242692A (en) * 2011-05-20 2012-12-10 Tdk Corp Hologram recording-material composition and hologram recording medium
JP2014074058A (en) * 2007-07-26 2014-04-24 Shiseido Co Ltd Gel composition and cosmetic

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004262857A (en) * 2003-03-03 2004-09-24 Shiseido Co Ltd External preparation composition
US8003086B2 (en) 2006-05-09 2011-08-23 L'oreal S.A. Bis-urea compounds and compositions and method of cosmetic treatment
JP2014074058A (en) * 2007-07-26 2014-04-24 Shiseido Co Ltd Gel composition and cosmetic
JP2011057872A (en) * 2009-09-10 2011-03-24 Ricoh Co Ltd Material for inkjet ink composition and inkjet ink composition
US8360565B2 (en) 2009-09-10 2013-01-29 Ricoh Company, Limited Material for an inkjet ink composition and inkjet ink composition
JP2012215835A (en) * 2011-03-31 2012-11-08 Ricoh Co Ltd Rewritable recording medium, method for manufacturing rewritable recording medium, image recording set, and image recording method
JP2012242692A (en) * 2011-05-20 2012-12-10 Tdk Corp Hologram recording-material composition and hologram recording medium

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