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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Method of treating the skin with organic acids in anhydrous microsphere delivery systems

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) A61K-091/27    A61K-031/19   
미국특허분류(USC) 424/450 ; 514/557 ; 514/574
출원번호 US-0069089 (1998-04-28)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Ohlandt, Greeley, Ruggiero & Perle, LLP
인용정보 피인용 횟수 : 71  인용 특허 : 15
초록

There is provided a method of treating skin with a therapeutic, water-soluble organic acid. There is also provided an anhydrous composition containing the water-soluble organic acid is encapsulated into hydrophobic microspheres through which the organic acid can elute in the presence of water is applied to the skin. The composition is wet with water immediately prior to, or after the composition is applied to the skin.

대표
청구항
▼

[ What is claimed:] [1.] A therapeutic composition comprising:an anhydrous vehicle selected from the group consisting of powder, lotion, solid, cream and gel;at least one microsphere; andfrom about 20 wt %.% to about 30 wt. % of a water-soluble organic acid entrapped within said at least one microspherewherein said at least one microsphere is formed of a non-polar copolymer of a carbamate and an acrylate, and wherein the addition of water to the composition facilitates the elution of said water-soluble organic acid from within said at least one microsphe...

이 특허에 인용된 특허 (15)

  1. Van Scott Eugene J. (1138 Sewell La. Rydal PA 19046) Yu Ruey J. (4 Lindenwold Ave. Ambler PA 19002). aa
  2. Yu Ruey J. (4 Lindenwold Ave. Ambler PA 19002) Van Scott Eugene J. (1138 Sewell La. Rydal PA 19046). Alpha hydroxyacids, alpha ketoacids and their use in treating skin conditions. USP1982124363815.
  3. Szycher Michael (Lynnfield MA) Reed Andrew M. (Arvada CO). Biostable polyurethane products. USP1993105254662.
  4. Coury Arthur J. (St. Paul MN) Hobot Christopher M. (Mound MN) Carlson Kurt (Osseo MN). Biostable, segmented aliphatic polyurethanes and process therefor. USP1989104873308.
  5. Schaefer Hans (Antibes FRX) Watts Francine (Le Bar sur Loup FRX) Papantoniou Christos (Montmorency FRX) Mahieu Claude (Paris FRX). Cosmetic or pharmaceutical composition containing microspheres of polymers or of fatty substances filled with at least o. USP1994035292512.
  6. Szycher Michael (Lynnfield MA). Hydrophilic polyurethane elastomers. USP1992065118779.
  7. Gould Francis E. (Princeton NJ) Johnston Christian W. (Neshanic Station NJ). Hydrophilic polyurethanes of improved strength. USP1994085334691.
  8. Heinze Friedrich (Frankfurt DEX) Clasen Martina (Hamburg DEX). Microspherules. USP1996035496565.
  9. Ascione Jean-Marc (Paris FRX) Allard Delphine (Colombes FRX). Photoprotective/cosmetic compositions comprising 2,4,6-tris[p-((2′-ethylhexyl)oxycarbonyl)anilino]-1,3,5-triazine and d. USP1996025489431.
  10. Hansenne Isabelle (Paris FRX) van Leeuwen Victoria (Paris FRX). Photoprotective/cosmetic compositions comprising at least one solid organic sunscreen compound and salicylate solvents t. USP1997095667765.
  11. Duffy John A. (West Milford NJ) Teal Janice J. (Suffern NY) Garrison Mark S. (White Plains NY) Serban George P. (Ridgefield CT). Retinoid conjugate compounds and methods for treating of skin aging. USP1997025605933.
  12. Reed Andrew M. (Arvada CO) Askill Ian N. (Arvada CO) Weber Willis W. (Morrison CO). Segmented polyether polyurethane. USP1989074849458.
  13. Gould Francis E. (Princeton) Johnston Christian W. (Neshanic Station) Seems George E. (Pennington NJ). Thermally reversible polyurethane hydrogels and cosmetic, biological and medical uses. USP1991035000955.
  14. Yu Ruey J. (4400 Dexter St. Philadelphia PA 19128) Van Scott Eugene J. (1138 Sewell Lane Rydal PA 19046). Treatment of body odor and disturbed keratinization. USP1977104053630.
  15. Roman, Steven A.. Use as insecticides of esters of nitro(tetrahydro-2H-1,3-thiazin-2-ylidene)acetic acids. USP1977084045559.

이 특허를 인용한 특허 피인용횟수: 71

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