FR2326454A1 - Pigments magnetiques ameliores d'oxyde de fer pour la fabrication de couches magnetiques - Google Patents

Pigments magnetiques ameliores d'oxyde de fer pour la fabrication de couches magnetiques

Info

Publication number
FR2326454A1
FR2326454A1 FR7629716A FR7629716A FR2326454A1 FR 2326454 A1 FR2326454 A1 FR 2326454A1 FR 7629716 A FR7629716 A FR 7629716A FR 7629716 A FR7629716 A FR 7629716A FR 2326454 A1 FR2326454 A1 FR 2326454A1
Authority
FR
France
Prior art keywords
manufacture
iron oxide
magnetic
pigments
improved
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.)
Granted
Application number
FR7629716A
Other languages
English (en)
Other versions
FR2326454B1 (fr
Inventor
Eduard Schonafinger
Paul Deigner
Manfred Ohlinger
Helmut Jakusch
Jurgen Amort
Heinz Nestler
Claus-Dietrich Seiler
Otto Ambros
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of FR2326454A1 publication Critical patent/FR2326454A1/fr
Application granted granted Critical
Publication of FR2326454B1 publication Critical patent/FR2326454B1/fr
Granted 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
    • C09C1/22—Compounds of iron
    • C09C1/24—Oxides of iron
    • 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
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/12—Treatment with organosilicon compounds
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/71—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the lubricant
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • 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
    • C01P2006/42—Magnetic 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
    • C01P2006/90—Other properties not specified above
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24372—Particulate matter
    • Y10T428/2438—Coated
    • Y10T428/24388—Silicon containing coating
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24372—Particulate matter
    • Y10T428/24413—Metal or metal compound
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y10T428/257—Iron oxide or aluminum oxide
    • 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
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • Y10T428/2995—Silane, siloxane or silicone coating
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31652—Of asbestos
    • Y10T428/31663—As siloxane, silicone or silane
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31652—Of asbestos
    • Y10T428/31667—Next to addition polymer from unsaturated monomers, or aldehyde or ketone condensation product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)
  • Compounds Of Iron (AREA)
  • Soft Magnetic Materials (AREA)
FR7629716A 1975-10-02 1976-10-01 Pigments magnetiques ameliores d'oxyde de fer pour la fabrication de couches magnetiques Granted FR2326454A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752543962 DE2543962A1 (de) 1975-10-02 1975-10-02 Verbesserte eisenoxid-magnetpigmente fuer die herstellung von magnetschichten

Publications (2)

Publication Number Publication Date
FR2326454A1 true FR2326454A1 (fr) 1977-04-29
FR2326454B1 FR2326454B1 (fr) 1981-05-08

Family

ID=5958039

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7629716A Granted FR2326454A1 (fr) 1975-10-02 1976-10-01 Pigments magnetiques ameliores d'oxyde de fer pour la fabrication de couches magnetiques

Country Status (9)

Country Link
US (1) US4271234A (fr)
JP (1) JPS5244794A (fr)
BE (1) BE846849A (fr)
DE (1) DE2543962A1 (fr)
FR (1) FR2326454A1 (fr)
GB (1) GB1547636A (fr)
IT (1) IT1069992B (fr)
NL (1) NL7610900A (fr)
SU (1) SU784753A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377073A1 (fr) * 1977-01-07 1978-08-04 Philips Nv Fluide d'enregistrement magnetique et son procede de fabrication
EP0023265A1 (fr) * 1979-07-06 1981-02-04 Bayer Ag Solides finement divisés, leur préparation et leur utilisation

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5715231A (en) 1980-07-03 1982-01-26 Sony Corp Magnetic recording medium
US4600677A (en) * 1982-03-15 1986-07-15 Xerox Corporation Organoalkoxysilane carrier coatings
JPS59107426A (ja) * 1982-12-08 1984-06-21 Toray Silicone Co Ltd 磁気記録体
US4554088A (en) * 1983-05-12 1985-11-19 Advanced Magnetics Inc. Magnetic particles for use in separations
JPS6070518A (ja) * 1983-09-28 1985-04-22 Toshiba Corp 磁気記録媒体
JPS6087429A (ja) * 1983-10-19 1985-05-17 Victor Co Of Japan Ltd 磁気記録媒体及びその製造方法
US4597801A (en) * 1984-09-28 1986-07-01 Union Carbide Corporation Silane dispersing agent for magnetic media
US4719121A (en) * 1986-06-16 1988-01-12 Dow Corning Corporation Method of making a magnetic recording medium and composition
US4640790A (en) * 1986-07-14 1987-02-03 Dow Corning Corporation Dispersant composition for magnetic media
JP2864244B2 (ja) * 1987-05-19 1999-03-03 日新製鋼株式会社 機能性薄膜コーテイングをもつカラートナー用顔料
FR2624873B1 (fr) * 1987-12-18 1992-01-10 Rhone Poulenc Chimie Particules composites magnetisables a base d'organopolysiloxane reticule, leur procede de preparation et leur application en biologie
US4961959A (en) * 1988-03-23 1990-10-09 Dow Corning Corporation Quaternary ammonium salt of an alkoxysilane as a dispersant for magnetic pigment
US4929376A (en) * 1988-03-23 1990-05-29 Dow Corning Corporation Quaternary ammonium salt of an alkoxysilane as a dispersant for magnetic pigment
KR910010031B1 (ko) * 1989-05-19 1991-12-10 동양나이론 주식회사 난연 자성 복합 수지 조성물
US5277984A (en) * 1990-02-02 1994-01-11 Nippon Zeon Co., Ltd. Magnetic recording medium comprising ferromagnetic powder, a silane compound, and a binder comprising an epoxy group and specified functional group
DE4041663A1 (de) * 1990-12-22 1992-06-25 Merck Patent Gmbh Silanisierte pigmente und deren verwendung zu vergilbungsinhibierung von pigmentierten kunststoffen
US5320914A (en) * 1991-06-26 1994-06-14 Nippon Zeon Co., Ltd. Magnetic recording medium comprising a styrene copolymer or an acrylic copolymer
WO1997038041A1 (fr) * 1996-04-04 1997-10-16 Nanophase Technologies Corporation Polymeres siloxane a greffage en forme d'etoile, poudres ceramiques enrobees avec lesdits polymeres et procede de fabrication de poudres ceramiques enrobees
DE19614136A1 (de) * 1996-04-10 1997-10-16 Inst Neue Mat Gemein Gmbh Verfahren zur Herstellung agglomeratfreier nanoskaliger Eisenoxidteilchen mit hydrolysebeständigem Überzug
US5993967A (en) * 1997-03-28 1999-11-30 Nanophase Technologies Corporation Siloxane star-graft polymers, ceramic powders coated therewith and method of preparing coated ceramic powders
WO1998051435A1 (fr) * 1997-05-14 1998-11-19 Weixin Tang Particules metalliques entierement enrobees, de taille uniforme
DE19820112A1 (de) * 1998-05-06 1999-11-11 Eckart Standard Bronzepulver Mit reaktiven Orientierungshilfsmitteln beschichtete Effektpigmente
JP5456951B2 (ja) * 2004-12-08 2014-04-02 日鉄鉱業株式会社 酸化物膜被覆微粒子の製造方法
DE102006023244A1 (de) * 2006-05-18 2007-11-22 Lanxess Deutschland Gmbh Oxidationsstabile Eisenoxidpigmente, Verfahren zu ihrer Herstellung sowie deren Verwendung
DE102008003615A1 (de) * 2008-01-09 2009-07-16 Magforce Nanotechnologies Ag Magnetische Transducer
ES2807209T3 (es) 2011-08-10 2021-02-22 Magforce Ag Método para fabricar nanopartículas magnéticas aglomerantes recubiertas con alcoxisilano
US9139737B1 (en) 2011-11-21 2015-09-22 Nanophase Technologies Corporation Multifunctional coated powders and high solids dispersions
US10555892B1 (en) 2017-03-09 2020-02-11 Nanophase Technologies Corporation Functionalized siloxane or polysiloxane coated particles with enhanced light filtering properties
US10590278B2 (en) 2017-04-10 2020-03-17 Nanophase Technologies Corporation Coated powders having high photostability

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1486828A (fr) * 1966-07-15 1967-06-30 Basf Ag Procédé de fabrication de supports de magnétogrammes
NL7410375A (nl) * 1973-08-02 1975-02-04 Bayer Ag Magnetische pigmenten met verbeterde orienteer- baarheid alsmede werkwijze voor de bereiding daarvan.
FR2256494A1 (fr) * 1973-12-28 1975-07-25 Basf Ag

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1147518A (en) * 1965-07-17 1969-04-02 Basf Ag Magnetic recording media
US4169912A (en) * 1975-10-02 1979-10-02 Dynamit Nobel Aktiengesellschaft Iron oxide magnetic pigments for the production of magnetic coatings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1486828A (fr) * 1966-07-15 1967-06-30 Basf Ag Procédé de fabrication de supports de magnétogrammes
NL7410375A (nl) * 1973-08-02 1975-02-04 Bayer Ag Magnetische pigmenten met verbeterde orienteer- baarheid alsmede werkwijze voor de bereiding daarvan.
FR2256494A1 (fr) * 1973-12-28 1975-07-25 Basf Ag

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ABJP/72 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377073A1 (fr) * 1977-01-07 1978-08-04 Philips Nv Fluide d'enregistrement magnetique et son procede de fabrication
EP0023265A1 (fr) * 1979-07-06 1981-02-04 Bayer Ag Solides finement divisés, leur préparation et leur utilisation

Also Published As

Publication number Publication date
FR2326454B1 (fr) 1981-05-08
US4271234A (en) 1981-06-02
SU784753A3 (ru) 1980-11-30
IT1069992B (it) 1985-03-25
JPS5244794A (en) 1977-04-08
NL7610900A (nl) 1977-04-05
BE846849A (fr) 1977-01-31
DE2543962A1 (de) 1977-04-14
GB1547636A (en) 1979-06-27

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