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IT1011084B - Pigmenti colorati e procedimento per la loro produzione - Google Patents

Pigmenti colorati e procedimento per la loro produzione

Info

Publication number
IT1011084B
IT1011084B IT49278/74A IT4927874A IT1011084B IT 1011084 B IT1011084 B IT 1011084B IT 49278/74 A IT49278/74 A IT 49278/74A IT 4927874 A IT4927874 A IT 4927874A IT 1011084 B IT1011084 B IT 1011084B
Authority
IT
Italy
Prior art keywords
procedure
production
colored pigments
pigments
colored
Prior art date
Application number
IT49278/74A
Other languages
English (en)
Original Assignee
Merck Gmbh
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 Gmbh filed Critical Merck Gmbh
Application granted granted Critical
Publication of IT1011084B publication Critical patent/IT1011084B/it

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
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/26—Aluminium; Compounds thereof
    • 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
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02—Preparations containing skin colorants, e.g. pigments
    • 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
    • C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
    • 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
    • C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
    • C09C1/0021—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a core coated with only one layer having a high or low refractive index
    • 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
    • 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
    • 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
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • 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
    • 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
    • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
    • C09C2200/10—Interference pigments characterized by the core material
    • C09C2200/102—Interference pigments characterized by the core material the core consisting of glass or silicate material like mica or clays, e.g. kaolin
    • 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
    • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
    • C09C2200/30—Interference pigments characterised by the thickness of the core or layers thereon or by the total thickness of the final pigment particle
    • C09C2200/301—Thickness of the core
    • 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
    • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
    • C09C2200/30—Interference pigments characterised by the thickness of the core or layers thereon or by the total thickness of the final pigment particle
    • C09C2200/302—Thickness of a layer with high refractive material
    • 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
    • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
    • C09C2200/30—Interference pigments characterised by the thickness of the core or layers thereon or by the total thickness of the final pigment particle
    • C09C2200/306—Thickness of an absorbing layer
    • 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
    • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
    • C09C2200/40—Interference pigments comprising an outermost surface coating
    • C09C2200/401—Inorganic protective 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
    • C09C2220/00—Methods of preparing the interference pigments
    • C09C2220/10—Wet methods, e.g. co-precipitation
    • 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
    • C09C2220/00—Methods of preparing the interference pigments
    • C09C2220/10—Wet methods, e.g. co-precipitation
    • C09C2220/103—Wet methods, e.g. co-precipitation comprising a drying or calcination step after applying each layer

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Organic Chemistry (AREA)
  • Epidemiology (AREA)
  • Inorganic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Cosmetics (AREA)
IT49278/74A 1973-03-17 1974-03-15 Pigmenti colorati e procedimento per la loro produzione IT1011084B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2313332A DE2313332C3 (de) 1973-03-17 1973-03-17 Farbige Pigmente

Publications (1)

Publication Number Publication Date
IT1011084B true IT1011084B (it) 1977-01-20

Family

ID=5875057

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49278/74A IT1011084B (it) 1973-03-17 1974-03-15 Pigmenti colorati e procedimento per la loro produzione

Country Status (8)

Country Link
US (1) US3951679A (it)
JP (1) JPS5642634B2 (it)
BR (1) BR7402049D0 (it)
DE (1) DE2313332C3 (it)
ES (1) ES424358A1 (it)
FR (1) FR2221500B1 (it)
GB (1) GB1430701A (it)
IT (1) IT1011084B (it)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
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CA1090953A (en) * 1976-05-26 1980-12-09 Louis Armanini Iron oxide coated mica nacreous pigments
US4047969A (en) * 1976-10-05 1977-09-13 The Mearl Corporation Iron blue nacreous coated pigments
DE2928287A1 (de) * 1979-07-13 1981-01-29 Merck Patent Gmbh Perlglanzpigmente, verfahren zu ihrer herstellung und ihre verwendung
US4309480A (en) * 1980-02-28 1982-01-05 The Mearl Corporation Iron blue nacreous pigments
DE3211165A1 (de) * 1982-03-26 1983-09-29 Basf Ag, 6700 Ludwigshafen Pigmentzubereitungen und deren verwendung zum pigmentieren von tiefdruck- und lackfarben
US4525217A (en) * 1983-05-02 1985-06-25 Basf Wyandotte Corporation Process for preparing ferriferrocyanide pigments
DE3334596A1 (de) * 1983-09-24 1985-04-18 Merck Patent Gmbh, 6100 Darmstadt Dispergierbares berliner blau-pigment
JPH0729902B2 (ja) * 1985-07-11 1995-04-05 住友化学工業株式会社 メ−クアツプ化粧料
JPH0723974B2 (ja) * 1985-10-29 1995-03-15 三田工業株式会社 電子写真用メタリツクトナ−
DE3636075A1 (de) * 1986-10-23 1988-04-28 Merck Patent Gmbh Kosmetische zubereitungen
US4755229A (en) * 1987-02-09 1988-07-05 The Mearl Corporation Colored micaceous pigments
US5119871A (en) * 1990-04-06 1992-06-09 The B. F. Goodrich Company Opacified pearlescent multilayer louver for vertical blinds
US5496630A (en) * 1993-09-13 1996-03-05 The Geon Company Thermoplastic multilayer louver with a polished metal look
US5820884A (en) * 1996-11-15 1998-10-13 Townley Jewelry, Inc. Scented body gel having particulate matter in the form of glitter
US6007846A (en) * 1997-05-16 1999-12-28 Townley Jewelry, Inc. Scented body gel having particulate matter in the form of glitter with predetermined shapes
US6107244A (en) * 1997-10-15 2000-08-22 Nashua Corporation Verification methods employing thermally--imageable substrates
US5888251A (en) * 1998-04-28 1999-03-30 Aveda Corporation Method of coloring hair or eyelashes with compositions which contain metal containing pigments and a copaiba resin
US6569520B1 (en) † 2000-03-21 2003-05-27 3M Innovative Properties Company Photocatalytic composition and method for preventing algae growth on building materials
DE10120179A1 (de) * 2001-04-24 2002-10-31 Merck Patent Gmbh Farbige Pigmente
DE10137831A1 (de) 2001-08-02 2003-02-13 Merck Patent Gmbh Mehrschichtige Interferenzpigmente
EP1539094A1 (en) * 2002-09-20 2005-06-15 The Procter & Gamble Company Striped liquid personal cleansing compositions containing a cleansing phase and a separate benefit phase
WO2004050055A1 (en) * 2002-11-04 2004-06-17 The Procter & Gamble Company Striped liquid personal cleansing compositions containing a cleansing phase and a separate benefit phase with improved stability
DE10310736A1 (de) 2003-03-10 2004-09-23 Merck Patent Gmbh Interferenzpigmente mit Körperfarbe
KR20070121060A (ko) 2003-05-01 2007-12-26 더 프록터 앤드 갬블 캄파니 시각적으로 구별되는 다중 액상 조성물
WO2004098559A2 (en) * 2003-05-01 2004-11-18 The Procter & Gamble Company Striped liquid personal cleansing compositions containing a cleansing phase and a separate benefit phase comprising a high internal phase emulsion
US20050100570A1 (en) * 2003-05-08 2005-05-12 The Procter & Gamble Company Multi-phase personal care composition
US20040223991A1 (en) * 2003-05-08 2004-11-11 The Procter & Gamble Company Multi-phase personal care composition
DE10361436A1 (de) * 2003-12-23 2005-07-28 Eckart Gmbh & Co.Kg Gefärbte Metallpigmente, Verfahren zu deren Herstellung, Verwendung der gefärbten Metallpigmente in Kosmetika und Kosmetikum
US8951947B2 (en) * 2003-12-24 2015-02-10 The Procter & Gamble Company Multi-phase personal cleansing compositions comprising a lathering cleansing phase and a non-lathering structured aqueous phase
WO2005084616A1 (en) 2004-02-27 2005-09-15 The Procter & Gamble Company A mild multi-phased personal care composition
US7353831B1 (en) * 2004-06-11 2008-04-08 Ladd Forsline Container for storing pressed powders
WO2006010090A1 (en) * 2004-07-09 2006-01-26 The Procter & Gamble Company Multi-phased personal care composition
KR20070051345A (ko) 2004-08-23 2007-05-17 시바 스페셜티 케미칼스 홀딩 인크. 알루미늄 및 ＳｉＯＺ(Ｚ=0.7-2.0)를 기본으로 하는플레이크형 안료의 제조방법
EP1672037B1 (en) * 2004-12-16 2016-12-07 Kao Corporation Pearlescent pigment
CN101090701B (zh) * 2005-03-21 2011-11-02 宝洁公司 包括视觉上不同的相的多相个人护理组合物
US7820609B2 (en) 2005-04-13 2010-10-26 The Procter & Gamble Company Mild, structured, multi-phase personal cleansing compositions comprising density modifiers
MX2007007312A (es) * 2005-04-13 2007-07-09 Procter & Gamble Composiciones multifase estructuradas y suaves para la limpieza personal.
US20070141001A1 (en) * 2005-12-15 2007-06-21 The Procter & Gamble Company Non-migrating colorants in multi-phase personal cleansing compositions
US8104616B2 (en) * 2006-02-11 2012-01-31 The Procter & Gamble Company Clamshell package for holding and displaying consumer products
US8153144B2 (en) * 2006-02-28 2012-04-10 The Proctor & Gamble Company Stable multiphase composition comprising alkylamphoacetate
EP2066290A2 (en) * 2006-09-28 2009-06-10 The Procter and Gamble Company Concealer composition comprising titanium dioxide coated pigment and metal soap coated pigment
US8105996B2 (en) * 2007-03-30 2012-01-31 The Procter & Gamble Company Multiphase personal care composition comprising a structuring
US8158566B2 (en) * 2007-03-30 2012-04-17 The Procter & Gamble Company Multiphase personal care composition comprising a structuring system that comprises an associative polymer, a low HLB emulsifier and an electrolyte
ATE497997T1 (de) 2007-07-12 2011-02-15 Basf Se Interferenzpigmente auf basis von perlitschuppen
US8936799B2 (en) 2009-10-28 2015-01-20 Basf Se Pigments with improved sparkling effect
DE102009051171A1 (de) 2009-10-29 2011-05-05 Merck Patent Gmbh Pigmente
WO2011095447A2 (en) 2010-02-04 2011-08-11 Basf Se Pigment compositions with improved sparkling effect
US8475846B2 (en) * 2010-03-09 2013-07-02 Basf Corporation Colored micaceous pigments having bismuth oxychloride appearance and performance effects
US9508475B2 (en) 2010-06-30 2016-11-29 Viavi Solutions Inc. Magnetic multilayer pigment flake and coating composition
CN102443285B (zh) * 2011-09-05 2013-07-24 福州坤彩精化有限公司 普鲁士蓝珠光效果颜料及其制备方法
CN102766357A (zh) * 2012-08-10 2012-11-07 杭州弗沃德精细化工有限公司 一种导磁珠光颜料的制备方法
DE102012024901A1 (de) * 2012-12-20 2014-07-10 Merck Patent Gmbh Pigmente
US9168393B2 (en) 2013-03-13 2015-10-27 Johnson & Johnson Consumer Inc. Pigmented skin-care compositions
US9168394B2 (en) 2013-03-13 2015-10-27 Johnson & Johnson Consumer Inc. Pigmented skin-care compositions
US9320687B2 (en) 2013-03-13 2016-04-26 Johnson & Johnson Consumer Inc. Pigmented skin-care compositions
US9168209B2 (en) 2013-03-13 2015-10-27 Johnson & Johnson Consumer Inc. Pigmented skin-care compositions
MX2017006149A (es) 2014-11-10 2017-07-27 Procter & Gamble Composiciones para el cuidado personal con dos fases beneficas.
US10966916B2 (en) 2014-11-10 2021-04-06 The Procter And Gamble Company Personal care compositions
WO2016077325A1 (en) 2014-11-10 2016-05-19 The Procter & Gamble Company Personal care compositions with two benefit phases
EP3697375B1 (en) 2017-10-20 2021-12-01 The Procter & Gamble Company Aerosol foam skin cleanser
CN111225652A (zh) 2017-10-20 2020-06-02 宝洁公司 气溶胶泡沫洁肤剂
WO2020112486A1 (en) 2018-11-29 2020-06-04 The Procter & Gamble Company Methods for screening personal care products
WO2021252426A1 (en) * 2020-06-09 2021-12-16 Sun Chemical Corporation Colored cosmetic solid dispersions
CN115975401B (zh) * 2022-12-14 2024-08-09 浙江瑞成新材料股份有限公司 包覆含磷、铁、锂复合物的云母钛咖啡色珠光颜料及其制备方法

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* Cited by examiner, † Cited by third party
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BE759469A (fr) * 1969-11-29 1971-05-26 Merck Patent Gmbh Pigment a brillant nacre et leurs procedes de
DE2244298C3 (de) * 1972-09-09 1975-06-19 Merck Patent Gmbh, 6100 Darmstadt Perlglanzpigmente und Verfahren zu ihrer Herstellung

Also Published As

Publication number Publication date
FR2221500A1 (it) 1974-10-11
DE2313332B2 (de) 1977-06-08
DE2313332A1 (de) 1974-09-19
US3951679A (en) 1976-04-20
GB1430701A (en) 1976-04-07
DE2313332C3 (de) 1978-10-05
JPS49128028A (it) 1974-12-07
ES424358A1 (es) 1976-10-16
BR7402049D0 (pt) 1974-11-19
JPS5642634B2 (it) 1981-10-06
FR2221500B1 (it) 1977-09-30

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