GB2114934B - Sheet for use in a magnetic recording tape cassette - Google Patents

Sheet for use in a magnetic recording tape cassette

Info

Publication number
GB2114934B
GB2114934B GB08302171A GB8302171A GB2114934B GB 2114934 B GB2114934 B GB 2114934B GB 08302171 A GB08302171 A GB 08302171A GB 8302171 A GB8302171 A GB 8302171A GB 2114934 B GB2114934 B GB 2114934B
Authority
GB
United Kingdom
Prior art keywords
sheet
magnetic recording
tape cassette
recording tape
cassette
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.)
Expired
Application number
GB08302171A
Other versions
GB2114934A (en
GB8302171D0 (en
Inventor
Haruo Shiba
Toshihiko Ishida
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Publication of GB8302171D0 publication Critical patent/GB8302171D0/en
Publication of GB2114934A publication Critical patent/GB2114934A/en
Application granted granted Critical
Publication of GB2114934B publication Critical patent/GB2114934B/en
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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73925—Composite or coated non-esterified substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
    • 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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • G11B5/73931—Two or more layers, at least one layer being polyester
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/107—Ceramic
    • B32B2264/108—Carbon, e.g. graphite particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/21—Anti-static
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2429/00—Carriers for sound or information
    • B32B2429/02—Records or discs

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Magnetic Record Carriers (AREA)
  • Adhesive Tapes (AREA)
GB08302171A 1982-02-23 1983-01-26 Sheet for use in a magnetic recording tape cassette Expired GB2114934B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982024503U JPS58127464U (en) 1982-02-23 1982-02-23 Sheet for magnetic tape cassettes

Publications (3)

Publication Number Publication Date
GB8302171D0 GB8302171D0 (en) 1983-03-02
GB2114934A GB2114934A (en) 1983-09-01
GB2114934B true GB2114934B (en) 1985-06-12

Family

ID=12139991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08302171A Expired GB2114934B (en) 1982-02-23 1983-01-26 Sheet for use in a magnetic recording tape cassette

Country Status (4)

Country Link
JP (1) JPS58127464U (en)
DE (1) DE3306089A1 (en)
GB (1) GB2114934B (en)
NL (1) NL8300248A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8401561U1 (en) * 1984-01-20 1984-05-03 Basf Ag, 6700 Ludwigshafen TAPE CASSETTE, ESPECIALLY MAGNETIC TAPE CASSETTE AND INSERT FILM DAFUER
DE8415333U1 (en) * 1984-05-19 1984-11-22 Basf Ag, 6700 Ludwigshafen MAGNETIC TAPE CASSETTE, IN PARTICULAR COMPACT CASSETTE
US5451643A (en) * 1993-03-05 1995-09-19 Baylor University Poly(alkylene dicarboxylates) and synthesis thereof
US5561212A (en) * 1993-03-05 1996-10-01 Baylor University Poly(methylene oxalate), a new composition of matter
US5371171A (en) * 1993-03-05 1994-12-06 Baylor University Poly(methylene oxalate) and precursors thereto

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS537115Y2 (en) * 1973-05-22 1978-02-22

Also Published As

Publication number Publication date
NL8300248A (en) 1983-09-16
JPS58127464U (en) 1983-08-29
GB2114934A (en) 1983-09-01
GB8302171D0 (en) 1983-03-02
DE3306089A1 (en) 1983-09-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950126