FR2143315A1 - Magnetic tape support - contg uniformly distributed ferromagnetic particles in a polyester binder - Google Patents

Magnetic tape support - contg uniformly distributed ferromagnetic particles in a polyester binder

Info

Publication number
FR2143315A1
FR2143315A1 FR7222619A FR7222619A FR2143315A1 FR 2143315 A1 FR2143315 A1 FR 2143315A1 FR 7222619 A FR7222619 A FR 7222619A FR 7222619 A FR7222619 A FR 7222619A FR 2143315 A1 FR2143315 A1 FR 2143315A1
Authority
FR
France
Prior art keywords
contg
polyester
magnetic tape
uniformly distributed
ferromagnetic particles
Prior art date
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.)
Withdrawn
Application number
FR7222619A
Other languages
French (fr)
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.)
Filmfabrik Wolfen VEB
Original Assignee
Filmfabrik Wolfen VEB
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 Filmfabrik Wolfen VEB filed Critical Filmfabrik Wolfen VEB
Publication of FR2143315A1 publication Critical patent/FR2143315A1/en
Withdrawn legal-status Critical Current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

Landscapes

  • Laminated Bodies (AREA)
  • Paints Or Removers (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Magnetic Record Carriers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Magnetic tape, film or thread support contains a powdered ferromagnetic substance (I) and an magnetic binder (pref. polyester) where the support is of one layer contg. 5-60 wt.% (I) homogeneously distributed. (I) is Fe, Co, Ni powder or alloy. The polyester is produced from combinations of aliphatic/aromatic diols and dicarboxylic acids. A magnetic field is applied during spinning of the polyester contg. (I). The tape is used for information storage and has better magnetic properties than the two-layer type. Cheaper process, produces fewer rejects.
FR7222619A 1971-06-25 1972-06-22 Magnetic tape support - contg uniformly distributed ferromagnetic particles in a polyester binder Withdrawn FR2143315A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD15607971A DD99469A1 (en) 1971-06-25 1971-06-25

Publications (1)

Publication Number Publication Date
FR2143315A1 true FR2143315A1 (en) 1973-02-02

Family

ID=5483999

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7222619A Withdrawn FR2143315A1 (en) 1971-06-25 1972-06-22 Magnetic tape support - contg uniformly distributed ferromagnetic particles in a polyester binder

Country Status (3)

Country Link
DD (1) DD99469A1 (en)
DE (1) DE2162957A1 (en)
FR (1) FR2143315A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370384A (en) * 1980-10-03 1983-01-25 Tdk Electronics Co., Ltd. Magnetic recording medium
US4668415A (en) * 1986-02-12 1987-05-26 E. I. Du Pont De Nemours And Company Facilitation of orientation of thermotropic polymers in a magnetic field

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370384A (en) * 1980-10-03 1983-01-25 Tdk Electronics Co., Ltd. Magnetic recording medium
US4668415A (en) * 1986-02-12 1987-05-26 E. I. Du Pont De Nemours And Company Facilitation of orientation of thermotropic polymers in a magnetic field

Also Published As

Publication number Publication date
DD99469A1 (en) 1973-08-13
DE2162957A1 (en) 1972-12-28

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Legal Events

Date Code Title Description
RE Withdrawal of published application