CA995069A - Manufacture of magnetic recording media - Google Patents

Manufacture of magnetic recording media

Info

Publication number: CA995069A
Authority: CA; Canada
Prior art keywords: manufacture; magnetic recording; recording media; media; magnetic
Prior art date: 1973-01-02
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.): Expired

Application number

CA188,969A

Other languages

English (en)

Other versions

CA188969S (en

Inventor

Hans J. Hartmann

Guenter Vaeth

Helmut Kopke

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.)

BASF SE

Original Assignee

BASF SE

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.)

1973-01-02

Filing date

1973-12-27

Publication date

1976-08-17

1973-01-02 Priority claimed from DE19732300020 external-priority patent/DE2300020C3/de

1973-12-27 Application filed by BASF SE filed Critical BASF SE

1976-08-17 Application granted granted Critical

1976-08-17 Publication of CA995069A publication Critical patent/CA995069A/en

Status Expired legal-status Critical Current

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
- G11B5/702—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 bonding agent
- G11B5/7028—Additives, e.g. crosslinking agents
- 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
- G11B5/7013—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 dispersing agent
- 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

CA188,969A 1973-01-02 1973-12-27 Manufacture of magnetic recording media Expired CA995069A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19732300020 DE2300020C3 (de)		1973-01-02	Herstellen von Dispersionen

Publications (1)

Publication Number	Publication Date
CA995069A true CA995069A (en)	1976-08-17

Family

ID=5868146

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA188,969A Expired CA995069A (en)	1973-01-02	1973-12-27	Manufacture of magnetic recording media

Country Status (7)

Country	Link
JP (1)	JPS4999005A (it)
BE (1)	BE809335A (it)
CA (1)	CA995069A (it)
FR (1)	FR2212596B3 (it)
GB (1)	GB1448470A (it)
IT (1)	IT1000408B (it)
NL (1)	NL7317421A (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2617809C2 (de) *	1976-04-23	1984-09-20	Basf Ag, 6700 Ludwigshafen	Verfahren zur Stabilisierung von Chromdioxid-Magnetpigmenten und seine Verwendung
JPS61233424A (ja) *	1986-04-04	1986-10-17	Hitachi Ltd	磁気媒体

1973
- 1973-12-17 JP JP48139737A patent/JPS4999005A/ja active Pending
- 1973-12-19 GB GB5870773A patent/GB1448470A/en not_active Expired
- 1973-12-19 NL NL7317421A patent/NL7317421A/xx unknown
- 1973-12-27 CA CA188,969A patent/CA995069A/en not_active Expired
- 1973-12-27 FR FR7346513A patent/FR2212596B3/fr not_active Expired
- 1973-12-28 IT IT54662/73A patent/IT1000408B/it active
1974
- 1974-01-02 BE BE139466A patent/BE809335A/xx unknown

Also Published As

Publication number	Publication date
FR2212596A1 (it)	1974-07-26
NL7317421A (it)	1974-07-04
BE809335A (fr)	1974-07-02
DE2300020A1 (de)	1974-07-25
DE2300020B2 (de)	1975-08-28
IT7354662A1 (it)	1975-06-28
IT1000408B (it)	1976-03-30
GB1448470A (en)	1976-09-08
FR2212596B3 (it)	1976-10-22
JPS4999005A (it)	1974-09-19

Publication	Publication Date	Title
AU476502B2 (en)	1976-09-23	Magnetic transducing assembly
AU442671B2 (en)	1973-11-29	Magnetic recording tape
CA991914A (en)	1976-06-29	Method of making magnetic recording medium
CA1021875A (en)	1977-11-29	Magnetic disk memory
AU450743B2 (en)	1974-07-18	Magnetic recording medium
AU464297B2 (en)	1975-08-21	Fine-metal-particle-based magnetic recording medium of'improved environmental stability
CA1028208A (en)	1978-03-21	Coated magnetic recording media
CA1028053A (en)	1978-03-14	Offset read/write magnetic recording system
CA1033057A (en)	1978-06-13	Magnetic recording and reproducing system
AU4234772A (en)	1973-11-22	Magnetic recording medium
CA1035208A (en)	1978-07-25	Magnetic recording medium
CA1003563A (en)	1977-01-11	Magnetic recording playback system
CA1001908A (en)	1976-12-21	Magnetic recording medium
CA1026168A (en)	1978-02-14	Magnetic recording media
CA1029129A (en)	1978-04-04	Magnetic recording tape
CA1018647A (en)	1977-10-04	Magnetic tape reproducing system
AU4545772A (en)	1974-02-14	Magnetic record medium
CA1010309A (en)	1977-05-17	Magnetic recording media
CA1030257A (en)	1978-04-25	Device for the thermomagnetic recording of information
CA982419A (en)	1976-01-27	Production of rigid magnetic recording media
AU485273B2 (en)	1976-01-22	Magnetic recording medium
AU453512B2 (en)	1974-09-13	Magnetic tape reproducing system
CA969433A (en)	1975-06-17	Magnetic recording media
AU488433B2 (en)	1976-01-22	Magnetic recording tape
CA981533A (en)	1976-01-13	Magnetic recording medium