JP6147820B2 - 化粧品組成物中での使用に適したゲル技術 - Google Patents
化粧品組成物中での使用に適したゲル技術 Download PDFInfo
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- JP6147820B2 JP6147820B2 JP2015156017A JP2015156017A JP6147820B2 JP 6147820 B2 JP6147820 B2 JP 6147820B2 JP 2015156017 A JP2015156017 A JP 2015156017A JP 2015156017 A JP2015156017 A JP 2015156017A JP 6147820 B2 JP6147820 B2 JP 6147820B2
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Description
一実施形態では、フラクタルネットワークは、少なくとも1種類のサブミクロンサイズのフラクタル粒子(つまり、ナノ粒子)を含んでいる。フラクタル粒子は、正、中性あるいは負の正味の表面電荷を有してもよい(ゼータ電位)。適切な媒体に分散されると、フラクタル粒子は、フラクタルネットワークを形成するために合体する。媒体に応じて、ファンデルワールス力(親水性分散剤)、静電引力の観点から、あるいは水素結合(親油性分散剤)に起因して、合体が生じる。以下でより詳細に説明されるように、本発明のゲルを形成するために、剪断下で、マクロ粒子がこの分散剤に添加されてもよい。
分散されたコロイド粒子は、2つの主要なメカニズムによって帯電される。つまり、イオン性表面基の解離あるいは優先吸着である。各メカニズムは、同時にあるいは独立して生じる。粒子表面上の酸性基の解離によって、負に帯電された表面が生ずる。これとは逆に、塩基性基の解離によって、正に帯電された表面がもたらされる。何れの場合でも、表面電荷の大きさは、酸性または塩基性基の強さと溶液のpHによる。表面電荷は、表面のイオン化を抑制することによってゼロ(等電点)まで減じることもできる。これは、負に帯電された粒子の場合は、pHを低下させることによって、正に帯電された粒子の場合は、pHを増加させることによって実現されてもよい。さらに、負に帯電された粒子の分散体にアルカリを添加すれば、粒子はより負に帯電されるようになる。この分散体に酸が添加されれば、粒子の電荷が中和される位置に達する。引き続き酸を添加すると、粒子には正の電荷が生じる。
イオン種とイオン性界面活性剤の吸着とは、具体的には、帯電された粒子表面上に吸着され得ることである。カチオン界面活性剤の場合、吸着によって正に帯電された表面がもたらされ、アニオン界面活性剤の場合、吸着によって負に帯電された表面がもたらされる。一価あるいは多価の無機イオン(例えば、Na+、Al3+)は、2つのうちのいずれか1の方法で、帯電された表面と相互作用できる。つまり、所定のpHにおいて電荷の大きさを減少するか等電点(電荷中和点)のpHに変化するかのいずれかである。粒子表面上へのイオン種の特異的な吸着は、低濃度であっても、表面電荷に著しい効果を及すことができる。場合によっては、特異的なイオン吸着は、表面を逆帯電させることができる。粒子の分散体に界面活性剤や特定のイオンを添加することは、表面の電荷特性を修正するありふれた手法である。
本発明のゲルの調製に使用される巨視的粒子は、半透明であり、ゲルのマトリックス内にある。もっとも、化粧品組成物は、多相、例えば、連続する外部相内にゲルが分散されるエマルションであってもよいことが分かっている。代わりに、付加的な成分がゲル相に分散されてもよい。さらに別の実施形態では、巨視的粒子は、フラクタル粒子との相互作用を増加させる電荷や表面官能基を有してもよい。
化粧品組成物は、パウダー状、ケーキ状、ペンシル状、スティック状、軟膏状、クリーム状、乳液状、ローション状、液相状、ゲル状、エマルション状、乳化ゲル状、ムース状、泡状、スプレー型、拭き取り型を含む種々の形態を取ってもよい。化粧品組成物は、液体あるいはパウダーファンデーションで使用されると好ましい。
化粧品組成物の使用方法は、皮膚の美的外観の改善に関し、これに限定される訳ではないが、特に、顔面、首、または唇領域上やその周りで、1または複数のしわ、小じわ、毛穴、皮膚の欠陥をぼかしたり覆ったりする方法、痣、そばかす、発赤、クモ状静脈、および目の周りの隈などの皮膚の欠陥を補修する方法、皮膚の色調を高めたり、変更する方法、仕上げのメーキャップを改善する方法、および毛髪、まつ毛、眉毛に適用される方法を含む。
ゾルゲル化学技術が、C.J.BrinkerとW.Schererによって「Acad.Press」(Boston)1990年に記載されるように、本発明のゲルの形態に影響を及ぼすように使用されてもよい。本明細書の全てがこれに参照されて包含される。
本発明は、以下の非限定的な例によってさらに例証される。
実施例1乃至6は、本発明を例証しており、実施例1乃至3は水性エマルションを、実施例4乃至6は、フラクタル粒子3,4,5がD5に分散された非水性組成物を示している。
Dow Corningの1413Liquidと、Velvesil125と、DC5225Cを、3枚羽根のプロペラ式の混合機を用いて均一になるまで混合し、続いて、D5とナイロンを添加した。その後、RM2051がシリコン相に添加され、さらに10分間混合された。
煙霧シリカ/アルミナの30重量%分散体が、室温で約20分間、均一になるまで水と塩化ナトリウムに加えられた。その後、10分間連続して撹拌しながら、相Bを相Aに徐々に添加した。その後、組成物はさらに20分間混合された。
以下の例は、顔料を含むファンデーション組成物を示している。
1.ゲルシステムを含む化粧品組成物であって、
前記ゲルシステムが、(a)ナノ粒子のフラクタルネットワークと、(b)半透明の巨視的粒子を含む、
ことを特徴とする化粧品組成物。
2.前記ナノ粒子は、粒径が約50〜900ナノメートルの範囲にあり、約1.38〜約2の範囲の屈折率を有する無機ナノ粒子である、ことを特徴とする上記1に記載の化粧品組成物。
3.前記無機ナノ粒子が、シリカ、アルミナ、チタニア、ジルコニア、酸化亜鉛、酸化インジウムスズ、セリア、およびこれらの混合物からなる群から選ばれ、
前記巨視的粒子が、シリコンエラストマー、シリコンクロスポリマー、炭化水素エラストマー、天然および合成ゴム、ポリマー球体、およびこれらの互換可能な組み合わせからなる群から選ばれる、ことを特徴とする上記2に記載の化粧品組成物。
4.ポリマー球体が、フルオロポリマー、ポリアクリレート、ナイロン、ポリエステル、セルロースビーズ、ポリウレタン、ポリアクリルエステル、ポリエステル、ポリアミド、ポリエステルアミド、ポリウレタン、およびこれらの混合物からなる群から選ばれる、ことを特徴とする上記3に記載の化粧品組成物。
5.前記ゲルは、前記組成物の重量に対して、約1%〜100%の量で存在する、ことを特徴とする上記3に記載の化粧品組成物。
6.前記ゲルは、前記ゲルの重量に対して、少なくとも約2%から60%未満のナノ粒子を含む、ことを特徴とする上記4に記載の化粧品組成物。
7.前記ナノ粒子は、シリコンエラストマー、シリコンクロスポリマー、ナイロン、ポリウレタン、セルロースビーズ、およびこれらの混合物からなる群から選ばれる、ことを特徴とする上記4に記載の化粧品組成物。
8.前記巨視的粒子は、架橋型シリコン接着剤の化学反応により得られる架橋シリコンエラストマー、シリル水素化物を有するオレフィンまたはオレフィン系シリコンのヒドロシリル化によって調製される付加重合シリコンエラストマー、およびエポキシシリコンとシリル水素官能基を含む二官能性前駆体分子の架橋分子の不存在下での自己重合によって得られるシリコンクロスポリマーからなる群から選ばれる、ことを特徴とする上記7に記載の化粧品組成物。
9.前記シリコンクロスポリマーは、(ジメチコン/ビニルジメチコン)クロスポリマー、(ビニルジメチコン/ラウリルジメチコン)クロスポリマー、(アルキルセテアリルジメチコン/ポリシクロヘキサンオキシド)クロスポリマー、およびこれらの混合物からなる群から選ばれる、ことを特徴とする上記8に記載の化粧品組成物。
10.前記巨視的粒子は、約1.38から約1.6の範囲の屈折率を有する、ことを特徴とする上記7に記載の化粧品組成物。
11.前記ゲルは、約5〜約99%の量で存在し、前記化粧品組成物が有効成分をさらに含む、ことを特徴とする上記10に記載の化粧品組成物。
12.前記有効成分は、顔料、光拡散物質、日焼け止め、紫外線吸収剤およびこれらの組み合わせからなる群から選ばれる、ことを特徴とする上記11に記載の化粧品組成物。
13.異なるナノ粒子によって、異なるフラクタルネットワークが形成される、ことを特徴とする上記1に記載の化粧品組成物。
14.前記ゲルは、所定のpHを有する、第1のナノ粒子と第2のナノ粒子の水性分散体であり、
前記第1および第2のナノ粒子は、前記pHで逆符号に帯電されたゼータ電位を有する、
ことを特徴とする上記3に記載の化粧品組成物。
15.前記第1のナノ粒子がアルミナであり、前記第2のナノ粒子がシリカである、ことを特徴とする上記14に記載の化粧品組成物。
16.前記化粧品組成物は実質的に無水性であり、前記ゲルが非水性溶媒をさらに含む、ことを特徴とする上記3に記載の化粧品組成物。
17.前記化粧品組成物は、前記巨視的粒子が分散されるとともに、前記フラクタル粒子の屈折率と前記巨視的粒子の屈折がと一致しない溶媒を含む、ことを特徴とする上記3に記載の化粧品組成物。
18.(a)所定のpHを有し、第1の粒子と第2の粒子を含む化粧品組成物の重量に対して、約3〜約90%の量で存在する水性のゲルフラクタルネットワークであって、前記第1および第2の粒子が、前記所定のpHで逆符号に帯電されるゼータ電位を有し、前記第1および前記第2のナノ粒子が、アルキル置換煙霧シリカ、煙霧シリカ、コロイド状シリカ、煙霧アルミナおよびこれらの混合物からなる群から選ばれる水性のゲルフラクタルネットワークと、
(b)粒径が約1〜約200ミクロンの範囲にあり、約1.38〜約1.6の屈折率を有する半透明の巨視的粒子であって、前記ナノ粒子の屈折率と前記巨視的粒子の屈折率が一致しない半透明の巨視的粒子と、
(c)少なくとも一種類の化粧品有効成分と、を含む、
ことを特徴とする化粧品組成物。
19.前記ナノ粒子が、約50〜約200ナノメートルの粒径を有し、前記巨視的粒子が約2〜約50ミクロンの粒径を有する、ことを特徴とする上記18に記載の化粧品組成物。
20.前記巨視的粒子が、シリコンエラストマー、炭化水素エラストマー、シリコンクロスポリマー、ナイロン、ポリウレタン、セルロースビーズ、およびこれらの組み合わせからなる群から選ばれる、ことを特徴とする上記19に記載の化粧品組成物。
21.(a)ナノ粒子のフラクタルネットワークと、(b)半透明の巨視的粒子と、(c)無水溶媒と、を含み、
ナノ粒子の屈折率と巨視的粒子の屈折率が一致しない、
ことを特徴とする実質的に非水性の化粧品組成物。
22.前記ナノ粒子が、アルキル置換煙霧シリカ、煙霧シリカ、コロイド状シリカ、煙霧アルミナ、煙霧チタニアおよびこれらの混合物からなる群から選ばれる、ことを特徴とする上記21に記載の化粧品組成物。
23.前記巨視的粒子が、シリコンエラストマー、炭化水素エラストマー、シリコンクロスポリマー、ポリマー球体およびこれらの組み合わせからなる群から選ばれる、ことを特徴とする上記22に記載の化粧品組成物。
24.前記巨視的粒子が、シリコンエラストマー、炭化水素エラストマー、シリコンクロスポリマー、ポリマー球体およびこれらの組み合わせからなる群から選ばれる、ことを特徴とする上記21に記載の化粧品組成物。
25.前記ポリマー球体が、フルオロポリマー、ポリアクリレート、ナイロン、ポリエステル、セルロースビーズ、ポリウレタン、ポリアクリル酸エステル、ポリアミド、ポリエステルアミド、ポリウレタン、およびこれらの混合物からなる群から選ばれる、ことを特徴とする上記24に記載の化粧品組成物。
26.前記ナノ粒子が、約50〜約200ナノメートルの粒径を有し、
前記巨視的粒子が、約2〜約50ミクロンの粒径と、約1.38〜約1.6の屈折率を有する、
ことを特徴とする上記21に記載の化粧品組成物。
27.前記溶媒が、液体炭化水素と液体シリコンからなる群から選ばれる、ことを特徴とする上記21に記載の化粧品組成物。
28.ナノ粒子のフラクタルネットワーク内に半透明の巨視的粒子を含むゲルシステム。
29.ナノ粒子の屈折率と巨視的粒子の屈折率が一致しない、ことを特徴とする上記28に記載のゲルシステム。
30.前記フラクタルネットワークは、所定のpHを有する、第1のナノ粒子および第2のナノ粒子の水性分散体であり、
前記第1および第2のナノ粒子が、前記所定のpHで、逆符号に帯電されたゼータ電位を有し、
前記巨視的粒子が、少なくとも半透明である、
ことを特徴とする上記29に記載のゲルシステム。
31.前記フラクタルネットワークは、非水溶媒中において、実質的に無水の分散体となる、ことを特徴とする上記29に記載のゲルシステム。
32.しわ、小じわおよび毛穴からなる群から選ばれる皮膚の欠陥の外観を光学的にぼかす方法であって、
前記皮膚の欠陥の外観を光学的にぼかすのに有効な量のスキンケアまたはメーキャップ組成物を皮膚に塗布するステップを含み、
前記組成物が、(a)ナノ粒子のフラクタルネットワークと、(b)半透明の巨視的粒子からなるゲルシステムを含む、
ことを特徴とする方法。
Claims (7)
- ゲルを含む、無水性の化粧品組成物であって、
該ゲルが、化粧品組成物の重量に対して1〜100%の量で存在し、
該ゲルが、(a)ナノ粒子のフラクタルネットワークと(b)該ナノ粒子のフラクタルネットワークに覆われた半透明のマクロ粒子とを含み、
該ナノ粒子の屈折率は、該マクロ粒子の屈折率と一致せず、
前記化粧品組成物は1%未満の水分を含み、
該ゲルは、第1のナノ粒子と第2のナノ粒子との非水性分散体であり、
該第1および第2のナノ粒子が正または負の逆符号の表面電荷を有し、
該第1のナノ粒子がアルミナであり、該第2のナノ粒子がシリカであり、
該第1および第2のナノ粒子は、粒径が50〜900ナノメートルの範囲にあり、1.38〜2の範囲の屈折率を有し、
該マクロ粒子は、2〜50マイクロメートルの粒径を有する、
ことを特徴とする化粧品組成物。 - 前記マクロ粒子が、シリコーンエラストマー、シリコーンクロスポリマー、炭化水素エラストマー、天然および合成ゴム、ポリマー球体、およびこれらの互換可能な組み合わせからなる群から選ばれ、ここで、ポリマー球体は、フルオロポリマー、ポリアクリレート、ポリエステル、セルロースビーズ、ポリウレタン、ポリエーテル、ポリアミド、ポリエステルアミド、およびこれらの混合物からなる群から選ばれる、ことを特徴とする請求項1に記載の化粧品組成物。
- 前記ゲルは、該ゲルの重量に対して2%から60%のナノ粒子を含む、ことを特徴とする請求項1または2に記載の化粧品組成物。
- 前記シリコーンクロスポリマーは、(ジメチコン/ビニルジメチコン)クロスポリマー、(ビニルジメチコン/ラウリルジメチコン)クロスポリマー、およびこれらの混合物からなる群から選ばれる、ことを特徴とする請求項2に記載の化粧品組成物。
- 顔料、光拡散物質、日焼け止め、紫外線吸収剤およびこれらの互換可能な組み合わせからなる群から選ばれる有効成分をさらに含む、ことを特徴とする請求項1乃至4のいずれか1項に記載の化粧品組成物。
- 無水性のゲルフラクタルネットワークが、前記化粧品組成物の重量に対して、3〜90%の量で存在し、
前記第1および第2のナノ粒子が、アルキル置換煙霧シリカ、煙霧シリカ、コロイド状シリカ、煙霧アルミナおよびこれらの混合物からなる群から選ばれ、
前記ナノ粒子のフラクタルネットワークに覆われた半透明のマクロ粒子が、1.38〜1.6の屈折率を有し、前記ナノ粒子の屈折率は前記マクロ粒子の屈折率と一致せず、
前記ナノ粒子が、50〜200ナノメートルの粒径を有する、
ことを特徴とする請求項1に記載の化粧品組成物。 - しわ、小じわおよび毛穴からなる群から選ばれる皮膚の欠陥の外観を光学的にぼかすのに有効な量を皮膚に塗布して、該皮膚の欠陥の外観を光学的にぼかすためのスキンケア用またはメーキャップ用の無水性の組成物であって、
(a)ナノ粒子のフラクタルネットワークと、(b)該ナノ粒子のフラクタルネットワークに覆われた半透明のマクロ粒子と、を含むゲルを含み、
該ナノ粒子の屈折率は、該マクロ粒子の屈折率と一致せず、
前記組成物は1%未満の水分を含み、
該ゲルは、第1のナノ粒子と第2のナノ粒子との非水性分散体であり、
該第1および第2のナノ粒子が正または負の逆符号の表面電荷を有し、
該第1のナノ粒子がアルミナであり、該第2のナノ粒子がシリカであり、
該第1および第2のナノ粒子は、50〜200ナノメートルの粒径を有し、
該マクロ粒子は、2〜50マイクロメートルの粒径を有する、
ことを特徴とする組成物。
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KR20190068199A (ko) * | 2017-12-08 | 2019-06-18 | (주)아모레퍼시픽 | 모공 가림용 또는 피부 보습용 화장료 조성물 |
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JP2016026152A (ja) | 2016-02-12 |
JP2011507958A (ja) | 2011-03-10 |
HK1146220A1 (en) | 2011-05-20 |
US20100266649A1 (en) | 2010-10-21 |
WO2009085444A1 (en) | 2009-07-09 |
CA2708543A1 (en) | 2009-07-09 |
CN101909597B (zh) | 2013-02-13 |
EP2229142A4 (en) | 2015-10-07 |
BRPI0821690B1 (pt) | 2016-10-25 |
CA2708543C (en) | 2016-05-24 |
MX343797B (es) | 2016-11-23 |
CN101909597A (zh) | 2010-12-08 |
TW200934524A (en) | 2009-08-16 |
EP2229142A1 (en) | 2010-09-22 |
MX2010005984A (es) | 2010-07-05 |
AR069973A1 (es) | 2010-03-03 |
EP2229142B1 (en) | 2019-02-27 |
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