DE69202628D1 - Mehrschichtiger Polyesterfilm für HD-Magnetplatte. - Google Patents

Mehrschichtiger Polyesterfilm für HD-Magnetplatte.

Info

Publication number
DE69202628D1
DE69202628D1 DE69202628T DE69202628T DE69202628D1 DE 69202628 D1 DE69202628 D1 DE 69202628D1 DE 69202628 T DE69202628 T DE 69202628T DE 69202628 T DE69202628 T DE 69202628T DE 69202628 D1 DE69202628 D1 DE 69202628D1
Authority
DE
Germany
Prior art keywords
magnetic disk
polyester film
layer polyester
layer
film
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 - Lifetime
Application number
DE69202628T
Other languages
English (en)
Other versions
DE69202628T2 (de
Inventor
Shigeo Utsumi
Masashi Inagaki
Yuko Watanuki
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.)
Mitsubishi Polyester Film Corp
Original Assignee
Mitsubishi Polyester Film 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 Mitsubishi Polyester Film Corp filed Critical Mitsubishi Polyester Film Corp
Publication of DE69202628D1 publication Critical patent/DE69202628D1/de
Application granted granted Critical
Publication of DE69202628T2 publication Critical patent/DE69202628T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • G11B5/73935—Polyester substrates, e.g. polyethylene terephthalate characterised by roughness or surface features, e.g. by added 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • G11B5/733—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 characterised by the addition of non-magnetic particles
    • 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
    • G11B5/733—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 characterised by the addition of non-magnetic particles
    • G11B5/7334—Base layer characterised by composition or structure
    • 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
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • 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
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness
    • 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
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24372—Particulate matter
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/254—Polymeric or resinous material
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/259—Silicic material
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]
DE69202628T 1991-07-04 1992-06-30 Mehrschichtiger Polyesterfilm für HD-Magnetplatte. Expired - Lifetime DE69202628T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3164710A JPH058357A (ja) 1991-07-04 1991-07-04 高密度磁気デイスク用ポリエステルフイルム

Publications (2)

Publication Number Publication Date
DE69202628D1 true DE69202628D1 (de) 1995-06-29
DE69202628T2 DE69202628T2 (de) 1996-02-01

Family

ID=15798416

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69202628T Expired - Lifetime DE69202628T2 (de) 1991-07-04 1992-06-30 Mehrschichtiger Polyesterfilm für HD-Magnetplatte.

Country Status (7)

Country Link
US (1) US5318823A (de)
EP (1) EP0522412B1 (de)
JP (1) JPH058357A (de)
KR (1) KR930002084A (de)
CA (1) CA2072409A1 (de)
DE (1) DE69202628T2 (de)
MX (1) MX9203872A (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2970001B2 (ja) * 1991-03-06 1999-11-02 三菱化学ポリエステルフィルム株式会社 磁気テープ用ポリエステルフィルム
JP3052447B2 (ja) * 1991-07-12 2000-06-12 三菱化学ポリエステルフィルム株式会社 高密度磁気記録媒体用ポリエチレンナフタレートフィルム
JP3057893B2 (ja) * 1992-04-28 2000-07-04 三菱化学ポリエステルフィルム株式会社 積層フィルム
JPH06333227A (ja) * 1993-05-24 1994-12-02 Fuji Photo Film Co Ltd 磁気記録媒体
JP2925057B2 (ja) * 1993-08-30 1999-07-26 東レ株式会社 二軸配向積層ポリエステルフイルム
US5656356A (en) * 1994-01-11 1997-08-12 Teijin Limited Biaxially oriented laminated polyester film
US5976668A (en) * 1995-02-28 1999-11-02 Sony Corporation Base film for magnetic recording medium and magnetic recording medium using same
US6617377B2 (en) * 2001-10-25 2003-09-09 Cts Corporation Resistive nanocomposite compositions
US7141184B2 (en) 2003-12-08 2006-11-28 Cts Corporation Polymer conductive composition containing zirconia for films and coatings with high wear resistance
US20060043343A1 (en) * 2004-08-24 2006-03-02 Chacko Antony P Polymer composition and film having positive temperature coefficient
JP2021038388A (ja) * 2019-09-02 2021-03-11 東洋紡フイルムソリューション株式会社 二軸配向ポリエステルフィルム

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198458A (en) * 1973-05-11 1980-04-15 Teijin Limited Laminate polyester films
DE3368806D1 (en) * 1982-03-10 1987-02-05 Toray Industries Laminated film and magnetic recording medium made therewith
JPS59203232A (ja) * 1983-05-02 1984-11-17 Diafoil Co Ltd 磁気記録体用ポリエステルフイルム
FR2548958B1 (fr) * 1983-07-13 1986-03-21 Rhone Poulenc Films Films polyesters composites
US4732814A (en) * 1985-10-03 1988-03-22 Toray Industries, Inc. Polyester film with smooth and highly adhesive surface and method of making same
JPS62131036A (ja) * 1985-12-02 1987-06-13 Teijin Ltd ポリエステルフイルム
JPH0625267B2 (ja) * 1985-12-17 1994-04-06 ダイアホイルヘキスト株式会社 高密度磁気記録媒体用ポリエチレン−２，６−ナフタレ−トフイルム
JPS6343931A (ja) * 1986-08-12 1988-02-25 Diafoil Co Ltd 磁気記録媒体用ポリエステルフイルム
US5045379A (en) * 1988-06-03 1991-09-03 Diafoil Company, Limited Polyester film for high density magnetic recording medium
DE68929156T2 (de) * 1988-06-08 2000-10-19 Toray Industries, Inc. Biaxial orientierte Verbundfolie

Also Published As

Publication number Publication date
KR930002084A (ko) 1993-02-22
MX9203872A (es) 1994-03-31
EP0522412B1 (de) 1995-05-24
US5318823A (en) 1994-06-07
JPH058357A (ja) 1993-01-19
DE69202628T2 (de) 1996-02-01
CA2072409A1 (en) 1993-01-05
EP0522412A1 (de) 1993-01-13

Similar Documents

Publication Publication Date Title
DE68919130D1 (de) Polyesterfilm für magnetische Aufzeichnungsträger.
DE69113585D1 (de) Biaxial gerichteter Polyesterfilm für magnetische Aufzeichnungsträger.
DE69317376D1 (de) Laminierter Polyesterfilm für magnetisches Aufzeichnungsmedium
DE3751424D1 (de) Mehrschichtige Polyesterfolie für magnetische Informationsträger.
DE69133432D1 (de) Mehrschichtinformationsspeichersystem
DE3382633D1 (de) Polyesterfilm fuer ein magnetisches aufzeichnungsmedium.
DE59009347D1 (de) Entmagnetisierungseinrichtung für magnetische Aufzeichnungsträger.
DE69818036D1 (de) Biaxial orientierter polyesterfilm für magnetische aufzeichnungsmedien
DE69233633D1 (de) Polyesterfilm für magnetische Aufzeichnung
DE69202628D1 (de) Mehrschichtiger Polyesterfilm für HD-Magnetplatte.
GB2173731B (en) Polyester film for magnetic recording media
DE69122154D1 (de) Biaxial ausgerichteter Polyesterfilm für magnetische Aufzeichnungsmedia
DE69205662D1 (de) Laminierter Polyesterfilm für magnetischen Aufzeichnungsträger.
MX9200995A (es) Pelicula de poliester adecuada para una cinta magnetica.
DE69204708D1 (de) Polyesterfolie für ein Magnetband.
DE69124793D1 (de) Polyesterfolie für magnetische aufzeichnungsträger
DE59205483D1 (de) Magnetische Aufzeichnungsträger
DE69207519D1 (de) Laminierter Polyesterfilm für magnetisches Aufzeichnungsmedium
DE69330327D1 (de) Biaxial ausgerichteter Polyesterfilm für magnetisches Aufzeichnungsmedium
DE69110945D1 (de) Magnetisches Aufzeichnungsmedium.
DE69331627D1 (de) Polyester Folien für magnetische Aufzeichnungen
DE69200110D1 (de) Polyäthylentherephthalatfilm für magnetische Aufzeichnungsträger.
DE69220616D1 (de) Magnetplatteneinheit
DE69425351D1 (de) Magnetische Aufzeichnungs-/Wiedergabevorrichtung mit Langspielbetrieb
MX9203988A (es) Medio para grabacion magnetica de alta densidad.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
R071 Expiry of right

Ref document number: 522412

Country of ref document: EP