CH547234A - SYNTHESIS FERRIC OXIDE GAMMA. - Google Patents

SYNTHESIS FERRIC OXIDE GAMMA.

Info

Publication number: CH547234A
Authority: CH; Switzerland
Prior art keywords: ferric oxide; oxide gamma; synthesis; synthesis ferric; gamma
Prior art date: 1971-03-17

Application number

CH385472A

Other languages

French (fr)

Original Assignee

Pfizer

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.)

1971-03-17

Filing date

1972-03-16

Publication date

1974-03-29

1972-03-16 Application filed by Pfizer filed Critical Pfizer

1974-03-29 Publication of CH547234A publication Critical patent/CH547234A/en

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
- G11B5/70663—Preparation processes specially adapted therefor, e.g. using stabilising agents
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
- 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
- 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
- G11B5/70647—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 with a skin
- 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
- 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
- C01P2004/51—Particles with a specific particle size distribution
- 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
- 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
- C01P2006/40—Electric 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
- C01P2006/42—Magnetic properties

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Health & Medical Sciences (AREA)
Dermatology (AREA)
General Health & Medical Sciences (AREA)
Inorganic Chemistry (AREA)
Compounds Of Iron (AREA)
Hard Magnetic Materials (AREA)
Paints Or Removers (AREA)

CH385472A 1971-03-17 1972-03-16 SYNTHESIS FERRIC OXIDE GAMMA. CH547234A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US12533171A	1971-03-17	1971-03-17
US22563672A	1972-02-11	1972-02-11

Publications (1)

Publication Number	Publication Date
CH547234A true CH547234A (en)	1974-03-29

Family

ID=26823475

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH385472A CH547234A (en)	1971-03-17	1972-03-16	SYNTHESIS FERRIC OXIDE GAMMA.

Country Status (14)

Country	Link
JP (1)	JPS5549016B1 (en)
AR (1)	AR199878A1 (en)
AU (1)	AU442230B2 (en)
BE (1)	BE780830A (en)
CA (1)	CA980536A (en)
CH (1)	CH547234A (en)
DE (1)	DE2212435C3 (en)
FI (1)	FI54284C (en)
FR (1)	FR2130407B1 (en)
GB (1)	GB1392196A (en)
IE (1)	IE36177B1 (en)
IT (1)	IT957573B (en)
NL (1)	NL167660C (en)
SE (1)	SE389329B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2735316C3 (en) *	1977-08-05	1981-01-29	Basf Ag, 6700 Ludwigshafen	Process for the production of acicular, ferrimagnetic iron oxides
DE2801395C2 (en) *	1978-01-13	1982-04-22	Bayer Ag, 5090 Leverkusen	Thermally stabilized ferrimagnetic iron oxide
DE2805405A1 (en) *	1978-02-09	1979-08-16	Basf Ag	PROCESS FOR THE PRODUCTION OF NEEDLE-SHAPED FERRIMAGNETIC IRON OXIDES
DE2945203A1 (en) *	1979-11-09	1981-06-04	Basf Ag, 6700 Ludwigshafen	METHOD FOR PRODUCING (GAMMA) IRON (III) OXIDE
JPS5816364U (en) *	1981-07-25	1983-02-01	株式会社新潟鐵工所	Timing adjustment device for concrete pumps
DE3224325A1 (en) *	1982-06-30	1984-01-05	Basf Ag, 6700 Ludwigshafen	METHOD FOR PRODUCING NEEDLE-SHAPED, FERRIMAGNETIC IRON OXIDES
DE3417793A1 (en) *	1984-05-14	1985-11-14	Basf Ag, 6700 Ludwigshafen	METHOD FOR THE PRODUCTION OF FINE-PARTIC, NEEDLE-SHAPED AND HIGH-CERCITIVE HEXAGONAL FERRITES AND THEIR USE FOR THE PRODUCTION OF MAGNETIC RECORDING CARRIERS AND PLASTOFERRITE
DE3516885A1 (en) *	1985-05-10	1986-11-13	Basf Ag, 6700 Ludwigshafen	METHOD FOR THE PRODUCTION OF NEEDLE-SHAPED, COBAL-CONTAINING FERRIMAGNETIC IRON OXIDS
DE3518481A1 (en) *	1985-05-23	1986-11-27	Basf Ag, 6700 Ludwigshafen	METHOD FOR THE PRODUCTION OF FINE-PARTIC AND NEEDLE-SHAPED HEXAGONAL FERRITES AND THEIR USE FOR THE PRODUCTION OF MAGNETIC RECORDING CARRIERS AND PLASTOFERRITE
CN118125779B (en) *	2024-05-07	2024-07-02	湖南瑞砂环境科技有限公司	Gap filler based on gold tailings and preparation process thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1244896A (en) *	1960-01-11	1960-10-28	C K Williams & Co	Process for obtaining ferro-magnetic iron oxide powders, in particular for magnetic recording elements and powders and elements obtained by this process
US3498748A (en) *	1967-05-18	1970-03-03	Pfizer & Co C	Preparation of magnetic ferric oxide

1972
- 1972-03-10 GB GB1141272A patent/GB1392196A/en not_active Expired
- 1972-03-14 FI FI67972A patent/FI54284C/en active
- 1972-03-15 AU AU40023/72A patent/AU442230B2/en not_active Expired
- 1972-03-15 DE DE19722212435 patent/DE2212435C3/en not_active Expired
- 1972-03-16 CH CH385472A patent/CH547234A/en not_active IP Right Cessation
- 1972-03-16 IE IE34372A patent/IE36177B1/en unknown
- 1972-03-16 CA CA137,228A patent/CA980536A/en not_active Expired
- 1972-03-16 AR AR24097472A patent/AR199878A1/en active
- 1972-03-17 FR FR7209464A patent/FR2130407B1/fr not_active Expired
- 1972-03-17 JP JP2736572A patent/JPS5549016B1/ja active Pending
- 1972-03-17 NL NL7203583A patent/NL167660C/en not_active IP Right Cessation
- 1972-03-17 SE SE347972A patent/SE389329B/en unknown
- 1972-03-17 BE BE780830A patent/BE780830A/en not_active IP Right Cessation
- 1972-03-17 IT IT4907072A patent/IT957573B/en active

Also Published As

Publication number	Publication date
CA980536A (en)	1975-12-30
FR2130407A1 (en)	1972-11-03
JPS5549016B1 (en)	1980-12-09
IE36177B1 (en)	1976-09-01
NL7203583A (en)	1972-09-19
IT957573B (en)	1973-10-20
FI54284C (en)	1978-11-10
DE2212435B2 (en)	1977-09-01
NL167660C (en)	1982-01-18
FR2130407B1 (en)	1974-12-13
AU4002372A (en)	1973-09-20
AU442230B2 (en)	1973-11-01
BE780830A (en)	1972-09-18
IE36177L (en)	1972-09-17
FI54284B (en)	1978-07-31
NL167660B (en)	1981-08-17
DE2212435C3 (en)	1978-04-20
AR199878A1 (en)	1974-10-08
SE389329B (en)	1976-11-01
DE2212435A1 (en)	1972-10-19
GB1392196A (en)	1975-04-30

Publication	Publication Date	Title
SE394960B (en)	1977-07-25	REACTION CRYSTALIZER
DK127955B (en)	1974-02-11	Construction set.
NL163939C (en)	1980-10-15	SIGNAL CONVERSION SYSTEM.
NL152451B (en)	1977-03-15	HOSPITAL BED.
IT971348B (en)	1974-04-30	EMERGENCY BED
CH547234A (en)	1974-03-29	SYNTHESIS FERRIC OXIDE GAMMA.
AT313470B (en)	1974-02-25	X-ray contrast media
AT313469B (en)	1974-02-25	X-ray contrast media
DK132205B (en)	1975-11-10	Antiperspirant.
NL169957C (en)	1982-09-16	SYRINGE.
AT339250B (en)	1977-10-10	REACTOR
AT312795B (en)	1974-01-25	X-ray contrast media
DK128402B (en)	1974-04-29	Antiperspirant.
BR7201523D0 (en)	1973-05-31	EASILY SUBDIVISIBLE PILL
CH558759A (en)	1975-02-14	FERRIC OXIDE.
CH542483A (en)	1973-09-30	Information facility
AT314078B (en)	1974-03-25	X-ray contrast media
CH546077A (en)	1974-02-28	CATHETER VENTRICULOCEREBRAL.
DK133804B (en)	1976-07-26	Toothpaste.
NL165047C (en)	1981-03-16	BED CONSTRUCTION.
DK130871B (en)	1975-04-28	Antiperspirant.
AU3543371A (en)	1973-05-10	Catalyst having superior heat-characteristics
AT318801B (en)	1974-11-25	X-ray contrast media
AT312162B (en)	1973-12-27	X-ray contrast media
ES171869Y (en)	1972-07-16	BED.

Legal Events

Date	Code	Title	Description
1986-09-30	PUE	Assignment	Owner name: PFIZER PIGMENTS INC.
1991-11-29	PL	Patent ceased