[go: up one dir, main page]

DE69818036D1 - Biaxial orientierter polyesterfilm für magnetische aufzeichnungsmedien - Google Patents

Biaxial orientierter polyesterfilm für magnetische aufzeichnungsmedien

Info

Publication number
DE69818036D1
DE69818036D1 DE69818036T DE69818036T DE69818036D1 DE 69818036 D1 DE69818036 D1 DE 69818036D1 DE 69818036 T DE69818036 T DE 69818036T DE 69818036 T DE69818036 T DE 69818036T DE 69818036 D1 DE69818036 D1 DE 69818036D1
Authority
DE
Germany
Prior art keywords
biaxial
magnetic recording
polyester film
recording media
oriented polyester
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.)
Revoked
Application number
DE69818036T
Other languages
English (en)
Other versions
DE69818036T2 (de
Inventor
Masafumi Koseki
Hideaki Watanabe
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.)
Teijin Ltd
Original Assignee
Teijin Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=18344404&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69818036(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Teijin Ltd filed Critical Teijin Ltd
Application granted granted Critical
Publication of DE69818036D1 publication Critical patent/DE69818036D1/de
Publication of DE69818036T2 publication Critical patent/DE69818036T2/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • G11B5/73929—Polyester substrates, e.g. polyethylene terephthalate comprising naphthalene ring compounds, e.g. polyethylene naphthalate substrates
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/91—Product with molecular orientation
    • 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.]
    • 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
    • Y10T428/24—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
    • Y10T428/24405—Polymer or resin [e.g., natural or synthetic rubber, etc.]
    • 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.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/268—Monolayer with structurally defined element
    • 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.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Magnetic Record Carriers (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
DE1998618036 1997-12-11 1998-12-02 Biaxial orientierter polyesterfilm für magnetische aufzeichnungsmedien Revoked DE69818036T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP34123197 1997-12-11
JP34123197 1997-12-11
PCT/JP1998/005443 WO1999029488A1 (fr) 1997-12-11 1998-12-02 Feuil de polyester a orientation biaxiale pour supports d'enregistrement magnetique

Publications (2)

Publication Number Publication Date
DE69818036D1 true DE69818036D1 (de) 2003-10-16
DE69818036T2 DE69818036T2 (de) 2004-07-15

Family

ID=18344404

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998618036 Revoked DE69818036T2 (de) 1997-12-11 1998-12-02 Biaxial orientierter polyesterfilm für magnetische aufzeichnungsmedien

Country Status (6)

Country Link
US (1) US6190753B1 (de)
EP (1) EP0982115B1 (de)
KR (1) KR100463695B1 (de)
DE (1) DE69818036T2 (de)
TW (1) TW409094B (de)
WO (1) WO1999029488A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000063001A1 (fr) * 1999-04-19 2000-10-26 Toray Industries, Inc. Film polyester a orientation biaxiale, procede de production dudit film et support d'enregistrement magnetique
DE60015062T2 (de) 1999-06-14 2006-03-09 Teijin Ltd. Biaxial orientierte polyesterfolie und magnetisches aufzeichnungsmedium
DE60130793T2 (de) * 2000-12-11 2008-07-17 Teijin Ltd. Biaxial orientierte polyesterfolie und verfahren zu ihrer herstellung
JP2003062901A (ja) * 2001-08-27 2003-03-05 Teijin Dupont Films Japan Ltd 磁気記録媒体用二軸配向ポリエステルフィルム
JP2004114492A (ja) * 2002-09-26 2004-04-15 Teijin Dupont Films Japan Ltd 二軸配向ポリエステルフィルム
US6999268B2 (en) * 2003-08-12 2006-02-14 Hewlett-Packard Development Company, L.P. Method and system of a head for a storage media
DE602005017008D1 (de) * 2004-01-29 2009-11-19 Teijin Dupont Films Japan Ltd Biaxial orientierte folie
JP4444955B2 (ja) * 2004-05-14 2010-03-31 帝人デュポンフィルム株式会社 フレキシブルエレクトロニクスデバイス基板用配向ポリエステルフィルム
JP4624850B2 (ja) * 2004-05-17 2011-02-02 帝人デュポンフィルム株式会社 二軸配向積層フィルムおよび磁気記録媒体
JPWO2007091381A1 (ja) * 2006-02-09 2009-07-02 帝人デュポンフィルム株式会社 二軸配向ポリエステルフィルムおよび磁気記録テープ
TWI469872B (zh) * 2011-12-13 2015-01-21 Ind Tech Res Inst 低熱膨脹係數聚酯薄膜與其形成方法
JP7003399B2 (ja) * 2016-10-25 2022-01-20 三菱ケミカル株式会社 ポリエステルフィルムロール
JP6725074B2 (ja) 2017-11-08 2020-07-15 ソニー株式会社 磁気記録媒体およびカートリッジ
JP6610822B1 (ja) 2019-03-29 2019-11-27 ソニー株式会社 磁気記録媒体
JP6610823B1 (ja) 2019-03-29 2019-11-27 ソニー株式会社 磁気記録媒体
JP6610821B1 (ja) 2019-03-29 2019-11-27 ソニー株式会社 磁気記録媒体
JP6610824B1 (ja) 2019-04-05 2019-11-27 ソニー株式会社 カートリッジおよびカートリッジメモリ
JP6590102B1 (ja) 2019-04-26 2019-10-16 ソニー株式会社 磁気記録カートリッジ
JP6590103B1 (ja) 2019-04-26 2019-10-16 ソニー株式会社 磁気記録媒体

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58168526A (ja) * 1982-03-31 1983-10-04 Teijin Ltd 近赤外線吸収性ポリエステルフイルム
DE345644T1 (de) * 1988-06-04 1991-10-17 Diafoil Co., Ltd., Tokio/Tokyo Polyesterfilm fuer magnetische aufzeichnungstraeger.
US5051292A (en) * 1989-02-01 1991-09-24 Teijin Limited Biaxially oriented film of polyethylene-2,6-naphthalate
US5374462A (en) * 1989-08-31 1994-12-20 Idemitsu Kosan Co., Ltd. Magnetic recording medium
JPH0393024A (ja) 1989-09-04 1991-04-18 Hitachi Maxell Ltd 金属薄膜型磁気記録媒体
JPH0646450B2 (ja) * 1990-11-01 1994-06-15 帝人株式会社 磁気記録フレキシブルディスク
JP2528215B2 (ja) * 1990-12-13 1996-08-28 帝人株式会社 磁気記録媒体用二軸配向ポリエステルフイルム
US5665454A (en) * 1991-03-22 1997-09-09 Teijin Limited Biaxially oriented polyethylene-2,6-naphthalate film and magnetic tape formed therefrom
DE69233066T2 (de) * 1991-08-13 2004-02-26 Teijin Ltd. Magnetband, hergestellt aus einem biaxial ausgerichteten,in eine Richtung ausge-dehnten Polyethylen -2,6- naphthalat-film
JP3056575B2 (ja) 1992-02-06 2000-06-26 帝人株式会社 ポリエチレン―２，６―ナフタレートフィルム
JPH0646450A (ja) 1992-07-21 1994-02-18 Sony Corp 画像信号のプリント装置
US5362571A (en) * 1994-03-16 1994-11-08 Teijin Limited Magnetic tape for use in cassette for digital audio tape recorder and biaxially oriented polyester base film therefor
JPH07223288A (ja) 1993-12-13 1995-08-22 Toray Ind Inc 二軸配向積層フィルム
JP3464333B2 (ja) * 1996-03-07 2003-11-10 帝人株式会社 磁気記録媒体用ポリエステルフイルム
JPH10138432A (ja) * 1996-11-14 1998-05-26 Teijin Ltd 磁気テープ用二軸配向積層ポリエステルフィルム

Also Published As

Publication number Publication date
DE69818036T2 (de) 2004-07-15
KR100463695B1 (ko) 2004-12-29
US6190753B1 (en) 2001-02-20
EP0982115A4 (de) 2001-05-23
TW409094B (en) 2000-10-21
EP0982115A1 (de) 2000-03-01
WO1999029488A1 (fr) 1999-06-17
EP0982115B1 (de) 2003-09-10
KR20000070955A (ko) 2000-11-25

Similar Documents

Publication Publication Date Title
DE69317376D1 (de) Laminierter Polyesterfilm für magnetisches Aufzeichnungsmedium
DE69818036D1 (de) Biaxial orientierter polyesterfilm für magnetische aufzeichnungsmedien
DE69113585D1 (de) Biaxial gerichteter Polyesterfilm für magnetische Aufzeichnungsträger.
DE69603013D1 (de) Mehrschichtige magnetische aufzeichnungsmedia und magnetoresistive antriebssysteme
DE68919130D1 (de) Polyesterfilm für magnetische Aufzeichnungsträger.
DE69834761D1 (de) Magnetisches Aufzeichnungsmedium
DE69705693D1 (de) Glaskeramisches Trägermaterial für magnetisches Informationsaufzeichnungsmedium
DE69421657D1 (de) Kassette für Aufzeichnungsträger
DE69122154D1 (de) Biaxial ausgerichteter Polyesterfilm für magnetische Aufzeichnungsmedia
DE69233633D1 (de) Polyesterfilm für magnetische Aufzeichnung
DE69608489D1 (de) Magnetisches Aufzeichnungsmedium
DE60015062D1 (de) Biaxial orientierte polyesterfolie und magnetisches aufzeichnungsmedium
DE69836238D1 (de) Magnetisches Aufzeichnungsmedium
DE19782243T1 (de) Magnetaufzeichnungsmedium
ATE236448T1 (de) Zweiseitige aufbewahrungseinheit für informationsträger
DE69330327D1 (de) Biaxial ausgerichteter Polyesterfilm für magnetisches Aufzeichnungsmedium
DE69205662D1 (de) Laminierter Polyesterfilm für magnetischen Aufzeichnungsträger.
DE69506672D1 (de) Magnetisches Aufzeichnungsmedium
DE69124793D1 (de) Polyesterfolie für magnetische aufzeichnungsträger
DE69817697D1 (de) Magnetisches Aufzeichnungsmedium
DE69503282D1 (de) Magnetisches Aufzeichnungsmedium
DE69510017D1 (de) Magnetisches Aufzeichnungsmedium
DE69207519D1 (de) Laminierter Polyesterfilm für magnetisches Aufzeichnungsmedium
DE69706343D1 (de) Biaxial ausgerichteter Polyesterfilm für magnetisches Aufzeichnungsmedium
DE69535320D1 (de) Magnetischer Aufzeichnungsträger

Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation