FR2130609A1 - - Google Patents

Info

Publication number: FR2130609A1
Authority: FR; France
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

FR7210228A

Other versions

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.)

Graham Magnetics Inc

Original Assignee

Graham Magnetics Inc

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.)

1971-03-24

Filing date

1972-03-23

Publication date

1972-11-03

1972-03-23 Application filed by Graham Magnetics Inc filed Critical Graham Magnetics Inc

1972-11-03 Publication of FR2130609A1 publication Critical patent/FR2130609A1/fr

1978-09-01 Application granted granted Critical

1978-09-01 Publication of FR2130609B1 publication Critical patent/FR2130609B1/fr

Status Expired legal-status Critical Current

Links

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/418—Preparation of metal complexes containing carboxylic acid moieties
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/16—Metallic particles coated with a non-metal
- 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
- G11B5/70605—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 metals or alloys
- 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
- G11B5/70605—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 metals or alloys
- G11B5/70621—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 metals or alloys containing Co metal or alloys
- 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
- G11B5/714—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 dimension of the magnetic particles
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/061—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder with a protective layer
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/065—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder obtained by a reduction
- 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
- Y10T428/2998—Coated including synthetic resin or polymer

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Metallurgy (AREA)
Power Engineering (AREA)
Oil, Petroleum & Natural Gas (AREA)
Paints Or Removers (AREA)
Hard Magnetic Materials (AREA)
Compositions Of Macromolecular Compounds (AREA)
Magnetic Record Carriers (AREA)
Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Powder Metallurgy (AREA)

FR7210228A 1971-03-24 1972-03-23 Expired FR2130609B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US12751471A	1971-03-24	1971-03-24
US228387A US3892673A (en)	1971-03-24	1972-02-22	Composition of metal salt crystals having a polymeric coating

Publications (2)

Publication Number	Publication Date
FR2130609A1 true FR2130609A1 (fr)	1972-11-03
FR2130609B1 FR2130609B1 (fr)	1978-09-01

Family

ID=26825704

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7210228A Expired FR2130609B1 (fr)	1971-03-24	1972-03-23

Country Status (15)

Country	Link
US (1)	US3892673A (fr)
JP (1)	JPS5245660B1 (fr)
AT (1)	AT331052B (fr)
BE (1)	BE781111A (fr)
CA (1)	CA972190A (fr)
CH (1)	CH566396A5 (fr)
DE (1)	DE2213131A1 (fr)
ES (1)	ES401098A1 (fr)
FR (1)	FR2130609B1 (fr)
GB (1)	GB1382724A (fr)
IE (1)	IE36220B1 (fr)
IL (1)	IL39014A (fr)
IT (1)	IT954521B (fr)
NL (1)	NL7203970A (fr)
SE (1)	SE388962B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3909240A (en) *	1973-09-28	1975-09-30	Graham Magnetics Inc	Method of producing acicular metal crystals
DE2535277C2 (de) *	1975-08-07	1984-10-18	Basf Ag, 6700 Ludwigshafen	Verwendung von Alkylenoxiden zur Stabilisierung pyrophorer Metallpulverteilchen
NO155316C (no) *	1982-04-23	1987-03-11	Sintef	Fremgangsmaate for fremstilling av magnetiske polymerpartikler.
WO1984002031A1 (fr) *	1982-11-10	1984-05-24	Sintef	Particules polymeres magnetiques et leur procede de preparation
JP4072994B2 (ja) *	2001-10-11	2008-04-09	学校法人日本大学	磁性粒子
CN101781186A (zh) *	2009-01-21	2010-07-21	尤米科尔公司	草酸钴粉末及其用于制造具有优良冷压和烧结性质的Co粉末的用途

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2216770A (en) *	1937-02-11	1940-10-08	Glidden Co	Method of making metal powders and product
US2621137A (en) *	1948-07-13	1952-12-09	Charles Hardy Inc	Reducing metal powders
US2791561A (en) *	1950-04-27	1957-05-07	Gen Aniline & Film Corp	Magnetic powders and method of making the same
US3228882A (en) *	1963-01-04	1966-01-11	Chevron Res	Dispersions of ferromagnetic cobalt particles
US3228881A (en) *	1963-01-04	1966-01-11	Chevron Res	Dispersions of discrete particles of ferromagnetic metals
US3574685A (en) *	1969-01-14	1971-04-13	Ibm	Manufacture of magnetic particles by reacting iron,cobalt,or nickel salts with oxalic acid salts in dialkyl sulfoxide

1972
- 1972-02-22 US US228387A patent/US3892673A/en not_active Expired - Lifetime
- 1972-03-17 DE DE19722213131 patent/DE2213131A1/de not_active Withdrawn
- 1972-03-17 IL IL39014A patent/IL39014A/en unknown
- 1972-03-22 IT IT67909/72A patent/IT954521B/it active
- 1972-03-22 AT AT243672A patent/AT331052B/de not_active IP Right Cessation
- 1972-03-23 ES ES401098A patent/ES401098A1/es not_active Expired
- 1972-03-23 FR FR7210228A patent/FR2130609B1/fr not_active Expired
- 1972-03-23 SE SE7203791A patent/SE388962B/xx unknown
- 1972-03-23 CH CH434372A patent/CH566396A5/xx not_active IP Right Cessation
- 1972-03-23 BE BE781111A patent/BE781111A/fr not_active IP Right Cessation
- 1972-03-23 CA CA137,973A patent/CA972190A/en not_active Expired
- 1972-03-24 GB GB1407672A patent/GB1382724A/en not_active Expired
- 1972-03-24 NL NL7203970A patent/NL7203970A/xx not_active Application Discontinuation
- 1972-03-24 JP JP47029693A patent/JPS5245660B1/ja active Pending
- 1972-03-24 IE IE386/72A patent/IE36220B1/xx unknown

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number	Publication date
IL39014A (en)	1976-10-31
IL39014A0 (en)	1972-05-30
GB1382724A (en)	1975-02-05
ES401098A1 (es)	1975-07-16
CA972190A (en)	1975-08-05
SE388962B (sv)	1976-10-18
JPS5245660B1 (fr)	1977-11-17
AT331052B (de)	1976-08-10
FR2130609B1 (fr)	1978-09-01
US3892673A (en)	1975-07-01
CH566396A5 (fr)	1975-09-15
IE36220L (en)	1972-09-24
ATA243672A (de)	1975-10-15
NL7203970A (fr)	1972-09-26
BE781111A (fr)	1972-09-25
DE2213131A1 (de)	1972-09-28
IE36220B1 (en)	1976-09-15
IT954521B (it)	1973-09-15

Legal Events

Date	Code	Title	Description
1985-01-25	ST	Notification of lapse

Publication	Publication Date	Title
FR2130609B1 (fr)	1978-09-01
FR2134322B1 (fr)	1975-07-04
FR2124620A1 (fr)	1972-09-22
FR2125448A1 (fr)	1972-09-29
CH561784A5 (fr)	1975-05-15
CH565868A5 (fr)	1975-08-29
CH416572A4 (fr)	1973-08-31
CH559788B5 (fr)
CH559293A5 (fr)	1975-02-28
CH1267572A4 (fr)	1977-08-15
CH579145A5 (fr)	1976-08-31
CH554015A (fr)	1974-09-13
CH566198A5 (fr)	1975-09-15
BG17196A1 (fr)	1973-07-25
CH556428A (fr)	1974-11-29
BG18042A1 (fr)	1974-09-02
CH40172A4 (fr)	1974-10-31
CH548481A (fr)	1974-04-30
BG16987A3 (fr)	1973-04-25
CH564475A5 (fr)	1975-07-31
CH561633A5 (fr)	1975-05-15
CH568262A5 (fr)	1975-10-31
CH559218A5 (fr)	1975-02-28
CH569671A5 (fr)	1975-11-28
BG18500A1 (fr)	1975-02-25