NL7901438A - Werkwijze voor de bereiding van een feooh pigment. - Google Patents

Werkwijze voor de bereiding van een feooh pigment. Download PDF

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Publication number
NL7901438A
NL7901438A NL7901438A NL7901438A NL7901438A NL 7901438 A NL7901438 A NL 7901438A NL 7901438 A NL7901438 A NL 7901438A NL 7901438 A NL7901438 A NL 7901438A NL 7901438 A NL7901438 A NL 7901438A
Authority
NL
Netherlands
Prior art keywords
pigment
feooh
water
magnetic
ammonium salt
Prior art date
Application number
NL7901438A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL7901438A priority Critical patent/NL7901438A/nl
Priority to US06/118,259 priority patent/US4349385A/en
Priority to DE19803004056 priority patent/DE3004056A1/de
Priority to JP1927880A priority patent/JPS55113631A/ja
Priority to FR8003692A priority patent/FR2449711A1/fr
Priority to GB8005683A priority patent/GB2043614B/en
Priority to BE0/199496A priority patent/BE881848A/fr
Publication of NL7901438A publication Critical patent/NL7901438A/nl

Links

Classifications

    • 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
    • G11B5/706—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 composition of the magnetic material
    • G11B5/70626—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 composition of the magnetic material containing non-metallic substances
    • G11B5/70642—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 composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70652—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 composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3
    • G11B5/70657—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 composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3 with a skin
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • 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
    • 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
    • Y10T428/25—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
NL7901438A 1979-02-23 1979-02-23 Werkwijze voor de bereiding van een feooh pigment. NL7901438A (nl)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL7901438A NL7901438A (nl) 1979-02-23 1979-02-23 Werkwijze voor de bereiding van een feooh pigment.
US06/118,259 US4349385A (en) 1979-02-23 1980-02-04 Method of preparing a FeOOH pigment
DE19803004056 DE3004056A1 (de) 1979-02-23 1980-02-05 Verfahren zur herstellung eines feooh-pigments
JP1927880A JPS55113631A (en) 1979-02-23 1980-02-20 Manufacture of improved feooh pigment and magnetic recording element using said pigment
FR8003692A FR2449711A1 (fr) 1979-02-23 1980-02-20 Procede pour la preparation d'un pigment de feooh, et element d'enregistrement magnetique comportant un tel pigment
GB8005683A GB2043614B (en) 1979-02-23 1980-02-20 Method of preparing a feooh pigment
BE0/199496A BE881848A (fr) 1979-02-23 1980-02-21 PROCEDE POUR LA PREPARATION D'UN PIGMENT DE FeOOH

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7901438A NL7901438A (nl) 1979-02-23 1979-02-23 Werkwijze voor de bereiding van een feooh pigment.
NL7901438 1979-02-23

Publications (1)

Publication Number Publication Date
NL7901438A true NL7901438A (nl) 1980-08-26

Family

ID=19832681

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7901438A NL7901438A (nl) 1979-02-23 1979-02-23 Werkwijze voor de bereiding van een feooh pigment.

Country Status (7)

Country Link
US (1) US4349385A (ja)
JP (1) JPS55113631A (ja)
BE (1) BE881848A (ja)
DE (1) DE3004056A1 (ja)
FR (1) FR2449711A1 (ja)
GB (1) GB2043614B (ja)
NL (1) NL7901438A (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505990A (en) * 1983-07-14 1985-03-19 Hercules Incorporated Coating compositions
DE3820499A1 (de) * 1988-06-16 1989-12-21 Bayer Ag Thermisch stabile eisenoxidpigmente mit gamma-fe(pfeil abwaerts)2(pfeil abwaerts)0(pfeil abwaerts)3(pfeil abwaerts)-struktur, verfahren zu ihrer herstellung sowie deren verwendung
IL132506A (en) 1999-10-21 2006-06-11 Biopigment Ltd Method for production of iron oxide pigments
JPWO2004017336A1 (ja) * 2002-08-06 2005-12-08 日本板硝子株式会社 強磁性微粒子発熱体の製造方法
CN102285692B (zh) * 2011-06-16 2013-03-27 西南大学 一种具有强磁光效应胶体的制备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD74306A (ja) *
DE1219009B (de) * 1963-06-26 1966-06-16 Bayer Ag Verfahren zur Herstellung von gamma-FeOOH
JPS4915360A (ja) * 1972-05-17 1974-02-09
US3843540A (en) * 1972-07-26 1974-10-22 Us Interior Production of magnetic fluids by peptization techniques
DE2428875C2 (de) * 1974-06-14 1983-11-03 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von γ-Eisen(III)oxid
JPS5422838B2 (ja) * 1974-08-11 1979-08-09
US4178416A (en) * 1976-03-12 1979-12-11 Eastman Kodak Company Acicular ferric oxide for magnetic recording and process for producing same
DE2633597C2 (de) * 1976-07-27 1983-01-13 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von nadel- bis prismenförmigen ferrimagnetischen Eisenoxidpigmenten zur magnetischen Signalaufzeichnung
JPS54138894A (en) * 1978-04-20 1979-10-27 Hitachi Maxell Ltd Production of magnetic iron oxide powder

Also Published As

Publication number Publication date
DE3004056A1 (de) 1980-08-28
JPS55113631A (en) 1980-09-02
FR2449711A1 (fr) 1980-09-19
BE881848A (fr) 1980-08-21
JPH0243687B2 (ja) 1990-10-01
GB2043614A (en) 1980-10-08
US4349385A (en) 1982-09-14
GB2043614B (en) 1983-01-26

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A1B A search report has been drawn up
BV The patent application has lapsed