IT1106169B - Pigmento di magnetite procedimento per produrlo e supporti di registrazione che lo contengono - Google Patents

Pigmento di magnetite procedimento per produrlo e supporti di registrazione che lo contengono

Info

Publication number
IT1106169B
IT1106169B IT51330/78A IT5133078A IT1106169B IT 1106169 B IT1106169 B IT 1106169B IT 51330/78 A IT51330/78 A IT 51330/78A IT 5133078 A IT5133078 A IT 5133078A IT 1106169 B IT1106169 B IT 1106169B
Authority
IT
Italy
Prior art keywords
produce
recording media
media containing
magnetite pigment
procedure
Prior art date
Application number
IT51330/78A
Other languages
English (en)
Other versions
IT7851330A0 (it
Original Assignee
Bayer 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
Priority claimed from DE19772744598 external-priority patent/DE2744598C2/de
Priority claimed from DE19782829962 external-priority patent/DE2829962A1/de
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of IT7851330A0 publication Critical patent/IT7851330A0/it
Application granted granted Critical
Publication of IT1106169B publication Critical patent/IT1106169B/it

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
    • G11B5/70678—Ferrites
    • G11B5/70684—Ferro-ferrioxydes
    • G11B5/70689—Magnetite
    • 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
    • C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
    • 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
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • 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
    • C01P2006/32—Thermal properties
    • C01P2006/37—Stability against thermal decomposition
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Compounds Of Iron (AREA)
IT51330/78A 1977-10-04 1978-10-02 Pigmento di magnetite procedimento per produrlo e supporti di registrazione che lo contengono IT1106169B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772744598 DE2744598C2 (de) 1977-10-04 1977-10-04 Feinteilige Magnetitpigmente mit hoher Oxidationsbeständigkeit und Verfahren zu ihrer Herstellung
DE19782829962 DE2829962A1 (de) 1978-07-07 1978-07-07 Feinteilige magnetitpigmente mit hoher oxidationsbestaendigkeit und verfahren zu ihrer herstellung

Publications (2)

Publication Number Publication Date
IT7851330A0 IT7851330A0 (it) 1978-10-02
IT1106169B true IT1106169B (it) 1985-11-11

Family

ID=25772849

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51330/78A IT1106169B (it) 1977-10-04 1978-10-02 Pigmento di magnetite procedimento per produrlo e supporti di registrazione che lo contengono

Country Status (9)

Country Link
US (1) US4264462A (it)
JP (1) JPS5458729A (it)
AU (1) AU519462B2 (it)
CA (1) CA1128290A (it)
FR (1) FR2405282A1 (it)
GB (1) GB2005242B (it)
IT (1) IT1106169B (it)
NL (1) NL187181C (it)
PL (1) PL113751B1 (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522992A (en) * 1991-07-18 1996-06-04 Cervantes; Raul P. Solution treatment device
DE4139052A1 (de) * 1991-11-28 1993-06-03 Bayer Ag Thermostabile eisenoxidpigmente, verfahren zu ihrer herstellung sowie deren verwendung
DE4322886C2 (de) * 1993-07-09 1995-04-20 Bayer Ag Thermostabile Eisenoxidpigmente, Verfahren zu ihrer Herstellung sowie deren Verwendung
DE102006023244A1 (de) * 2006-05-18 2007-11-22 Lanxess Deutschland Gmbh Oxidationsstabile Eisenoxidpigmente, Verfahren zu ihrer Herstellung sowie deren Verwendung
DE102006023245A1 (de) * 2006-05-18 2007-11-22 Lanxess Deutschland Gmbh Oxidationsstabile Eisenoxidpigmente, Verfahren zu ihrer Herstellung sowie deren Verwendung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914424A (en) * 1958-02-24 1959-11-24 Little Inc A Vapor phase corrosion inhibition
GB907793A (en) * 1959-12-04 1962-10-10 Ici Ltd Improvements in or relating to corrosion inhibitors for copper and copper containingalloys
DE1159731B (de) * 1960-08-04 1963-12-19 Heinrich Mueller Dampfphaseninhibitoren zum Schutz von Eisen und seinen Legierungen gegen atmosphaerische Korrosion
US3852069A (en) * 1971-01-25 1974-12-03 Agfa Gevaert Application of magnetic recording strips to motion picture film
US3795539A (en) * 1971-06-23 1974-03-05 Adm Tronics Water-based binder for magnetic tape
BE794155A (fr) * 1972-01-20 1973-07-17 Bayer Ag Pigments colores mineraux
US3931025A (en) * 1973-09-21 1976-01-06 Bayer Aktiengesellschaft Magnetic iron oxides with improved orientability and a process for their production
DE2535277C2 (de) * 1975-08-07 1984-10-18 Basf Ag, 6700 Ludwigshafen Verwendung von Alkylenoxiden zur Stabilisierung pyrophorer Metallpulverteilchen

Also Published As

Publication number Publication date
IT7851330A0 (it) 1978-10-02
GB2005242B (en) 1982-10-06
US4264462A (en) 1981-04-28
JPS5543027B2 (it) 1980-11-04
JPS5458729A (en) 1979-05-11
AU519462B2 (en) 1981-12-03
CA1128290A (en) 1982-07-27
PL210031A1 (pl) 1979-06-18
NL7809884A (nl) 1979-04-06
FR2405282A1 (fr) 1979-05-04
FR2405282B1 (it) 1983-08-05
GB2005242A (en) 1979-04-19
AU4034178A (en) 1980-04-17
NL187181B (nl) 1991-01-16
NL187181C (nl) 1991-06-17
PL113751B1 (en) 1980-12-31

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