IT1082184B - Procedimento per la stabilizzazione di pigmenti magnetici al biossido di cromo - Google Patents

Procedimento per la stabilizzazione di pigmenti magnetici al biossido di cromo

Info

Publication number
IT1082184B
IT1082184B IT4903277A IT4903277A IT1082184B IT 1082184 B IT1082184 B IT 1082184B IT 4903277 A IT4903277 A IT 4903277A IT 4903277 A IT4903277 A IT 4903277A IT 1082184 B IT1082184 B IT 1082184B
Authority
IT
Italy
Prior art keywords
stabilization
procedure
chromium dioxide
magnetic pigments
pigments
Prior art date
Application number
IT4903277A
Other languages
English (en)
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Application granted granted Critical
Publication of IT1082184B publication Critical patent/IT1082184B/it

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
    • 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
    • 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
    • C09C1/34—Compounds of chromium
    • C09C1/346—Chromium oxides
    • 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
    • G11B5/70636—CrO2
    • 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
    • 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
    • Y10T428/259—Silicic material
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
IT4903277A 1976-04-23 1977-04-20 Procedimento per la stabilizzazione di pigmenti magnetici al biossido di cromo IT1082184B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2617809A DE2617809C2 (de) 1976-04-23 1976-04-23 Verfahren zur Stabilisierung von Chromdioxid-Magnetpigmenten und seine Verwendung

Publications (1)

Publication Number Publication Date
IT1082184B true IT1082184B (it) 1985-05-21

Family

ID=5976038

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4903277A IT1082184B (it) 1976-04-23 1977-04-20 Procedimento per la stabilizzazione di pigmenti magnetici al biossido di cromo

Country Status (8)

Country Link
US (1) US4275114A (it)
JP (1) JPS6019566B2 (it)
BE (1) BE853856A (it)
DE (1) DE2617809C2 (it)
FR (1) FR2349629A1 (it)
GB (1) GB1572359A (it)
IT (1) IT1082184B (it)
NL (1) NL185019C (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022414B2 (ja) * 1978-04-10 1985-06-01 日立マクセル株式会社 磁気記録媒体
DE3328719C2 (de) * 1982-08-10 1985-07-25 Victor Company Of Japan, Ltd., Yokohama, Kanagawa Magnetisches Aufzeichnungsmaterial
US4454282A (en) * 1983-03-21 1984-06-12 International Business Machines Corporation Water-based chromium dioxide magnetic recording media
US4661408A (en) * 1986-03-18 1987-04-28 E.I. Du Pont De Nemours And Company Coated chromium dioxide particles
JP2810339B2 (ja) * 1995-08-23 1998-10-15 花王株式会社 磁気記録媒体
DE102004035479A1 (de) * 2004-07-14 2006-02-16 Volkswagen Ag Sicherheitssystem für einen Fahrzeugsitz
GB201810581D0 (en) 2018-06-28 2018-08-15 Ctxt Pty Ltd Compounds
EP3986890B1 (en) 2019-06-18 2023-11-15 Pfizer Inc. Benzisoxazole sulfonamide derivatives

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512930A (en) * 1969-05-07 1970-05-19 Du Pont Stabilized ferromagnetic chromium dioxide
JPS5212149Y1 (it) * 1969-10-25 1977-03-17
US3634252A (en) * 1970-06-22 1972-01-11 Du Pont Chromium dioxide recording compositions stabilized with long-chain ammonium salts
US3849152A (en) * 1972-11-06 1974-11-19 Ferro Corp Polysiloxane encapsulation of pigments
JPS4999005A (it) * 1973-01-02 1974-09-19
GB1489436A (en) * 1973-12-28 1977-10-19 Basf Ag Magnetic recording medium containing lubricants
CA1079057A (en) * 1974-12-18 1980-06-10 Manfred Ohlinger Stabilization of chromium dioxide magnetic pigments

Also Published As

Publication number Publication date
NL7704316A (nl) 1977-10-25
GB1572359A (en) 1980-07-30
FR2349629B1 (it) 1983-01-07
NL185019C (nl) 1990-01-02
JPS52130306A (en) 1977-11-01
DE2617809A1 (de) 1977-11-03
DE2617809C2 (de) 1984-09-20
BE853856A (fr) 1977-10-24
US4275114A (en) 1981-06-23
JPS6019566B2 (ja) 1985-05-16
FR2349629A1 (fr) 1977-11-25

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940429