ES2172015T3 - Microcapsulas de quitina o de derivados de quitina que contienen una substancia hidrofoba, en particular un filtro solar y procedimiento de preparacion de dichas microcapsulas. - Google Patents

Microcapsulas de quitina o de derivados de quitina que contienen una substancia hidrofoba, en particular un filtro solar y procedimiento de preparacion de dichas microcapsulas.

Info

Publication number
ES2172015T3
ES2172015T3 ES97947105T ES97947105T ES2172015T3 ES 2172015 T3 ES2172015 T3 ES 2172015T3 ES 97947105 T ES97947105 T ES 97947105T ES 97947105 T ES97947105 T ES 97947105T ES 2172015 T3 ES2172015 T3 ES 2172015T3
Authority
ES
Spain
Prior art keywords
chitosan
microcapsules
quitina
derivatives
polyhydroxylated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES97947105T
Other languages
English (en)
Inventor
Bernard Grandmontagne
Francois Marchio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merck SA
Original Assignee
Merck SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Merck SA filed Critical Merck SA
Application granted granted Critical
Publication of ES2172015T3 publication Critical patent/ES2172015T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/11—Encapsulated compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
    • A61K8/445—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof aromatic, i.e. the carboxylic acid directly linked to the aromatic ring
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5036—Polysaccharides, e.g. gums, alginate; Cyclodextrin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2984—Microcapsule with fluid core [includes liposome]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2989—Microcapsule with solid core [includes liposome]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2998—Coated including synthetic resin or polymer

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Organic Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Dermatology (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Cosmetics (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Medicinal Preparation (AREA)

Abstract

LA INVENCION SE REFIERE A UNAS MICROCAPSULAS FORMADAS POR UNA PARED DE QUITINA O UN DERIVADO DE LA MISMA O DE POLIAMINAS POLIHIDROXILADAS O UNA SAL DE LAS MISMAS QUE ENVUELVE UNA SUSTANCIA HIDROFOBA. SE REFIERE ASIMISMO AL PROCEDIMIENTO DE ELABORACION DE LAS MICROCAPSULAS, QUE CONSISTE EN: FORMAR UNA EMULSION DE UNA FASE HIDROFOBA CONSTITUIDA POR LA SUSTANCIA HIDROFOBA EN UNA FASE ACUOSA QUE CONTENGA UN AGENTE TENSIOACTIVO ANIONICO ELEGIDO ENTRE LOS TENSIOACTIVOS CAPACES DE PROVOCAR LA INSOLUBILIZACION DEL QUITOSANO O SUS DERIVADOS O DE POLIAMINAS POLIHIDROXILADAS; MEZCLAR DICHA EMULSION CON UNA SAL ORGANICA DE QUITOSANO O SUS DERIVADOS O DE POLIAMINAS POLIHIDROXILADAS A FIN DE PROVOCAR LA COACERVACION DEL QUITOSANO O SUS DERIVADOS O DE LAS POLIAMINAS POLIHIDROXILADAS EN TORNO DE LAS GOTITAS DE LA FASE HIDROFOBA; SOMETER EL COACERVADO DE QUITOSANO O SUS DERIVADOS O DE POLIAMINAS POLIHIDROXILADAS A UNA REACCION DE ACETILACION O RETICULACION; RETIRAR LAS MICROCAPSULAS. APLICACION A LAS COMPOSICIONES COSMETICAS QUE INCORPORAN FILTROS SOLARES.
ES97947105T 1996-11-21 1997-11-20 Microcapsulas de quitina o de derivados de quitina que contienen una substancia hidrofoba, en particular un filtro solar y procedimiento de preparacion de dichas microcapsulas. Expired - Lifetime ES2172015T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9614215A FR2755856B1 (fr) 1996-11-21 1996-11-21 Microcapsules de chitine ou de derives de chitine contenant une substance hydrophobe, notamment un filtre solaire et procede de preparation de telles microcapsules

Publications (1)

Publication Number Publication Date
ES2172015T3 true ES2172015T3 (es) 2002-09-16

Family

ID=9497859

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97947105T Expired - Lifetime ES2172015T3 (es) 1996-11-21 1997-11-20 Microcapsulas de quitina o de derivados de quitina que contienen una substancia hidrofoba, en particular un filtro solar y procedimiento de preparacion de dichas microcapsulas.

Country Status (9)

Country Link
US (1) US6242099B1 (es)
EP (1) EP0885061B1 (es)
JP (1) JP2000504033A (es)
AT (1) ATE213432T1 (es)
AU (1) AU5227498A (es)
DE (1) DE69710571T2 (es)
ES (1) ES2172015T3 (es)
FR (1) FR2755856B1 (es)
WO (1) WO1998022210A1 (es)

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DE69710571D1 (de) 2002-03-28
FR2755856B1 (fr) 1999-01-29
DE69710571T2 (de) 2002-11-21
JP2000504033A (ja) 2000-04-04
FR2755856A1 (fr) 1998-05-22
ATE213432T1 (de) 2002-03-15
WO1998022210A1 (fr) 1998-05-28
EP0885061A1 (fr) 1998-12-23
AU5227498A (en) 1998-06-10
EP0885061B1 (fr) 2002-02-20
US6242099B1 (en) 2001-06-05

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