ES2173078T3 - Polvo fotocromico protector de la radiacion ultravioleta, metodo de fabricar el mismo y preparaciones topicas para la piel que utilizan el mismo. - Google Patents

Polvo fotocromico protector de la radiacion ultravioleta, metodo de fabricar el mismo y preparaciones topicas para la piel que utilizan el mismo.

Info

Publication number
ES2173078T3
ES2173078T3 ES92109768T ES92109768T ES2173078T3 ES 2173078 T3 ES2173078 T3 ES 2173078T3 ES 92109768 T ES92109768 T ES 92109768T ES 92109768 T ES92109768 T ES 92109768T ES 2173078 T3 ES2173078 T3 ES 2173078T3
Authority
ES
Spain
Prior art keywords
same
photocromic
skin
powder
manufacturing
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
ES92109768T
Other languages
English (en)
Inventor
Tsutomu Saito
Fukuji Suzuki
Kazuhisa Ohno
Osamu Sakurai
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.)
Shiseido Co Ltd
Original Assignee
Shiseido Co Ltd
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 Shiseido Co Ltd filed Critical Shiseido Co Ltd
Application granted granted Critical
Publication of ES2173078T3 publication Critical patent/ES2173078T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3676—Treatment with macro-molecular organic compounds
    • 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
    • A61K8/0216—Solid or semisolid forms
    • A61K8/022—Powders; Compacted Powders
    • 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
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/29—Titanium; Compounds thereof
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/0081—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound
    • C09C1/0084—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound containing titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3615—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3653—Treatment with inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3653—Treatment with inorganic compounds
    • C09C1/3661—Coating
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3669—Treatment with low-molecular organic compounds
    • 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
    • A61K2800/42—Colour properties
    • A61K2800/43—Pigments; Dyes
    • A61K2800/438—Thermochromatic; Photochromic; Phototropic
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/02—Amorphous compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/84—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by UV- or VIS- data
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/32—Thermal properties
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Dermatology (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Cosmetics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)
  • Paper (AREA)

Abstract

UN MATERIAL PROTECTOR DE LOS RAYOS ULTRAVIOLETAS FOTOCROMICO, COMPUESTO PRINCIPALMENTE DE PARTICULAS DE OXIDO DE TITANIO, QUE TIENE UN AREA SUPERFICIAL ESPECIFICA DE 25 M2/G O SUPERIOR Y TIENE TAMBIEN DELTA E = S 1/2 A (GRADOS DE DECOLORACION) Y B (EN LA RESTAURACION) 1/2 DELTA E = 3, UN METODO PARA LA PRODUCCION DEL MISMO Y UNA PREPARACION DE USO EXTERNO PARA LA PIEL QUE LO UTILIZAN. SE PUEDEN OBTENER TANTO PROPIEDADES FOTOCROMICAS COMO UN EFECTO PROTECTOR A LOS RAYOS ULTRAVIOLETAS EXCELENTE.
ES92109768T 1991-06-10 1992-06-10 Polvo fotocromico protector de la radiacion ultravioleta, metodo de fabricar el mismo y preparaciones topicas para la piel que utilizan el mismo. Expired - Lifetime ES2173078T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3166511A JP3053667B2 (ja) 1991-06-10 1991-06-10 ホトクロミック性紫外線遮蔽粉体及びその製造方法、皮膚外用剤

Publications (1)

Publication Number Publication Date
ES2173078T3 true ES2173078T3 (es) 2002-10-16

Family

ID=15832697

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92109768T Expired - Lifetime ES2173078T3 (es) 1991-06-10 1992-06-10 Polvo fotocromico protector de la radiacion ultravioleta, metodo de fabricar el mismo y preparaciones topicas para la piel que utilizan el mismo.

Country Status (9)

Country Link
US (1) US5762915A (es)
EP (1) EP0526712B1 (es)
JP (1) JP3053667B2 (es)
KR (1) KR100209815B1 (es)
AU (1) AU657538B2 (es)
CA (1) CA2070749C (es)
DE (1) DE69232454T2 (es)
ES (1) ES2173078T3 (es)
TW (1) TW205007B (es)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06227943A (ja) * 1993-02-02 1994-08-16 Seven Kagaku:Kk 皮膚化粧料
JP3330610B2 (ja) * 1994-01-24 2002-09-30 触媒化成工業株式会社 ホトクロミック複合酸化物および該ホトクロミック複合酸化物を含有する化粧料
US5700451A (en) * 1995-05-24 1997-12-23 The Procter & Gamble Company Sunscreen composition
FR2758335B1 (fr) * 1997-01-16 1999-02-19 Oreal Procede de preparation d'un compose photochrome, le compose photochrome obtenu et la composition cosmetique le comprenant
FR2767807B1 (fr) * 1997-08-26 1999-10-08 Oreal Procede de preparation d'oxyde de titane photochrome, compose obtenu et composition le comprenant
FR2767839B1 (fr) * 1997-08-26 2002-06-07 Oreal Utilisation d'un conducteur ionique pour ameliorer le photochromisme d'une composition,notamment cosmetique, comprenant un compose photochrome, et composition comprenant ce conducteur ionique et ce compose photochrome
EP0957140A3 (en) * 1998-05-14 2000-05-10 Nikki Chemical Co., Ltd. Ultraviolet-cutoff material and process for preparing the same
FR2780275B1 (fr) * 1998-06-25 2000-08-04 Oreal Produit de maquillage associant un pigment photochrome et un filtre u.v, ses utilisations
GB9818016D0 (en) * 1998-08-18 1998-10-14 Procter & Gamble Cosmetic compositions
KR100289281B1 (ko) * 1998-09-03 2002-03-08 손 경 식 훼이셜메이크업화장료조성물
US6491929B1 (en) * 1999-03-01 2002-12-10 The General Hospital Corporation Skin cosmetics
US6361763B1 (en) * 2000-03-27 2002-03-26 George H. Carroll Photochromic tanning and sunscreen lotion
FR2815848B1 (fr) * 2000-10-31 2003-04-18 Oreal Compostion cosmetque contenant un agent de coloration photochrome et son utilisation pour le maquillage et/ou le soin de la peau et/ou des phaneres
KR20020096214A (ko) * 2001-06-19 2002-12-31 조현화 광호변성 투웨이 케이크의 제조방법
JP4188672B2 (ja) * 2002-05-31 2008-11-26 篠田プラズマ株式会社 フォトクロミック体、フォトクロミック材料及びその製造方法
GB0230156D0 (en) * 2002-12-24 2003-02-05 Oxonica Ltd Sunscreens
CA2528660A1 (en) * 2002-12-24 2004-07-15 Oxonica Limited Sunscreens
GB0315656D0 (en) * 2003-07-03 2003-08-13 Oxonica Ltd Metal oxide formulations
EP1696004A1 (en) * 2005-02-24 2006-08-30 A. Schulman Plastics Oxo-degradability inducing substance
US7569210B2 (en) * 2005-09-26 2009-08-04 Jamie Collins Doss Therapeutic soap product with UV protection
US7700079B2 (en) 2005-09-26 2010-04-20 Jamie Collins Doss Therapeutic soap product with UV protection
FR2942400B1 (fr) * 2009-02-23 2011-04-22 Oreal Procede de photomaquillage dans lequel un agent optique est utilise pour proteger le resultat obtenu
FR2942407B1 (fr) * 2009-02-23 2011-08-05 Oreal Procede de photomaquillage et composition de photomaquillage
WO2013049696A2 (en) 2011-09-30 2013-04-04 Ribi Hans O Advanced multi-element consumable - disposable products
EP2969582B1 (en) 2013-03-15 2021-06-02 Segan Industries, Inc. Compounds for reducing background color in color change compositions
US10703913B2 (en) 2015-12-25 2020-07-07 Shiseido Company, Ltd. Titanium dioxide powder and cosmetic formulated therewith
JP7017325B2 (ja) 2017-06-26 2022-02-08 株式会社 資生堂 二酸化チタン粉体を配合した乳化化粧料
JP7010607B2 (ja) * 2017-06-26 2022-01-26 株式会社 資生堂 固形粉末化粧料
JP7017326B2 (ja) * 2017-06-26 2022-02-08 株式会社 資生堂 二酸化チタン粉体を配合した化粧料
CN110349833A (zh) * 2019-06-02 2019-10-18 威海鑫润德贸易有限公司 一种荧光灯管内涂层及其制备方法
CN112980020B (zh) * 2021-03-29 2022-05-10 哈尔滨工业大学 一种兼具可逆变色和紫外屏蔽的poss基膜材料的合成方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709984A (en) * 1967-06-26 1973-01-09 Nl Industries Inc Photoreactive titanium dioxide material
US3658539A (en) * 1968-05-22 1972-04-25 Nl Industries Inc Method for the preparation of photoreactive titanium dioxide composition
US3749764A (en) * 1971-10-18 1973-07-31 Dow Chemical Co Titanium dioxide pigment
US4505886A (en) * 1983-07-01 1985-03-19 Nl Industries, Inc. Process for preparing high quality titanium dioxide
JPH0621057B2 (ja) * 1985-09-18 1994-03-23 サンスタ−株式会社 化粧料組成物
JPS63132811A (ja) * 1986-11-21 1988-06-04 Shiseido Co Ltd 化粧料
ES2076171T3 (es) * 1988-06-01 1995-11-01 Shiseido Co Ltd Cosmetico fotocromatico regulador de la manifestacion del color.
FR2636492B1 (fr) * 1988-09-15 1994-04-15 Peugeot Automobiles Boitier pour circuits electroniques notamment pour vehicule automobile
JP2915454B2 (ja) * 1989-11-30 1999-07-05 株式会社資生堂 ホトクロミック性肌色顔料およびその製造方法
FI89900C (fi) * 1990-03-01 1993-12-10 Kemira Oy Nytt framstaellningsfoerfarande av titandioxid
GB9018034D0 (en) * 1990-08-16 1990-10-03 Tioxide Group Services Ltd Production process
JP2961383B2 (ja) * 1990-10-01 1999-10-12 株式会社コーセー 化粧料

Also Published As

Publication number Publication date
KR930000095A (ko) 1993-01-15
AU657538B2 (en) 1995-03-16
CA2070749A1 (en) 1992-12-11
US5762915A (en) 1998-06-09
JP3053667B2 (ja) 2000-06-19
DE69232454D1 (de) 2002-04-11
TW205007B (es) 1993-05-01
AU1811992A (en) 1993-12-23
CA2070749C (en) 2002-03-26
JPH04364117A (ja) 1992-12-16
EP0526712A1 (en) 1993-02-10
KR100209815B1 (ko) 1999-07-15
EP0526712B1 (en) 2002-03-06
DE69232454T2 (de) 2002-11-07

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