DE69330327D1 - Biaxial ausgerichteter Polyesterfilm für magnetisches Aufzeichnungsmedium - Google Patents

Biaxial ausgerichteter Polyesterfilm für magnetisches Aufzeichnungsmedium

Info

Publication number
DE69330327D1
DE69330327D1 DE69330327T DE69330327T DE69330327D1 DE 69330327 D1 DE69330327 D1 DE 69330327D1 DE 69330327 T DE69330327 T DE 69330327T DE 69330327 T DE69330327 T DE 69330327T DE 69330327 D1 DE69330327 D1 DE 69330327D1
Authority
DE
Germany
Prior art keywords
recording medium
magnetic recording
polyester film
biaxially oriented
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.)
Expired - Fee Related
Application number
DE69330327T
Other languages
English (en)
Other versions
DE69330327T2 (de
Inventor
Tomoyuki Kotani
Kazuo Endo
Takashi Harada
Seiji Sakamoto
Narihiro Masuda
Masashi Inagaki
Chikakazu Kawaguchi
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
Priority claimed from JP4260316A external-priority patent/JPH06139551A/ja
Priority claimed from JP27457392A external-priority patent/JP3251660B2/ja
Priority claimed from JP4324184A external-priority patent/JPH06172555A/ja
Application filed by Mitsubishi Polyester Film Corp filed Critical Mitsubishi Polyester Film Corp
Publication of DE69330327D1 publication Critical patent/DE69330327D1/de
Application granted granted Critical
Publication of DE69330327T2 publication Critical patent/DE69330327T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16—Making expandable particles
    • C08J9/18—Making expandable particles by impregnating polymer particles with the blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • 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
    • 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
    • Y10S428/91—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.]
    • Y10T428/24942—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
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y10T428/257—Iron oxide or aluminum oxide
    • 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
    • Y10T428/258—Alkali metal or alkaline earth metal or compound thereof
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
    • 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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • 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)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Magnetic Record Carriers (AREA)
DE1993630327 1992-09-29 1993-09-27 Biaxial ausgerichteter Polyesterfilm für magnetisches Aufzeichnungsmedium Expired - Fee Related DE69330327T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4260316A JPH06139551A (ja) 1992-09-29 1992-09-29 磁気記録媒体用二軸配向ポリエステルフィルム
JP27457392A JP3251660B2 (ja) 1992-10-13 1992-10-13 磁気記録媒体用二軸配向ポリエステルフィルム
JP4324184A JPH06172555A (ja) 1992-12-03 1992-12-03 磁気記録媒体用二軸配向ポリエステルフィルム

Publications (2)

Publication Number Publication Date
DE69330327D1 true DE69330327D1 (de) 2001-07-19
DE69330327T2 DE69330327T2 (de) 2002-05-02

Family

ID=27334911

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1993630327 Expired - Fee Related DE69330327T2 (de) 1992-09-29 1993-09-27 Biaxial ausgerichteter Polyesterfilm für magnetisches Aufzeichnungsmedium

Country Status (4)

Country Link
US (1) US5670236A (de)
EP (1) EP0590570B1 (de)
KR (1) KR100261781B1 (de)
DE (1) DE69330327T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2954807B2 (ja) * 1993-05-13 1999-09-27 帝人株式会社 二軸配向積層ポリエステルフイルム
US5529832A (en) * 1994-11-10 1996-06-25 Teijin Limited Biaxially oriented laminated polyester film
JP3345247B2 (ja) * 1996-01-26 2002-11-18 帝人株式会社 積層二軸配向ポリエステルフイルム
EP0787579B1 (de) * 1996-02-05 2002-10-09 Teijin Limited Biaxial orientierte Verbundfolie
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
JPH10188256A (ja) * 1996-12-20 1998-07-21 Sony Corp 磁気記録媒体
JPH1134262A (ja) * 1997-07-22 1999-02-09 Teijin Ltd 積層二軸配向ポリエステルフィルム
US6331344B1 (en) * 1997-10-03 2001-12-18 Toray Industries, Inc. Biaxially oriented polyester film
DE19814710A1 (de) * 1998-04-01 1999-10-07 Hoechst Diafoil Gmbh Mehrschichtige, biaxial orientierte Polyesterfolie, Verfahren zu ihrer Herstellung und ihre Verwendung als Magnetbandfolie
EP0995593B2 (de) * 1998-05-06 2005-10-12 Teijin Limited Biaxial orientierte polyesterverbundfolie
JP2005339701A (ja) * 2004-05-28 2005-12-08 Fuji Photo Film Co Ltd 情報記録テープ

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5766936A (en) * 1980-10-15 1982-04-23 Teijin Ltd Polyester film
JPS5969426A (ja) * 1982-10-06 1984-04-19 Maruo Calcium Kk 沈降性炭酸カルシウム水系分散体
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
DE3313923A1 (de) * 1983-04-16 1984-10-18 Hoechst Ag, 6230 Frankfurt Polyesterrohstoff, daraus hergestellte formkoerper, vorzugsweise eine folie, sowie verwendung der formkoerper
JPS62207356A (ja) * 1986-03-07 1987-09-11 Nippon Shokubai Kagaku Kogyo Co Ltd 滑り性改良方法
JP2504055B2 (ja) * 1987-05-29 1996-06-05 東洋紡績株式会社 磁気記録媒体用二軸配向ポリエステルフイルム
US5188891A (en) * 1987-12-25 1993-02-23 Diafoil Company, Limited Magnetic recording medium comprising a polyester film substrate, a magnetic coating and a specified back coat layer
JPH07103247B2 (ja) * 1988-04-06 1995-11-08 ダイアホイルヘキスト株式会社 ポリエステル組成物および該組成物からなるフィルム
JPH0755533B2 (ja) * 1988-06-04 1995-06-14 ダイアホイルヘキスト株式会社 磁気記録媒体用ポリエステルフィルム
DE68919130T2 (de) * 1988-06-04 1995-06-01 Diafoil Hoechst Co Ltd Polyesterfilm für magnetische Aufzeichnungsträger.
DE68929156T2 (de) * 1988-06-08 2000-10-19 Toray Industries Biaxial orientierte Verbundfolie
EP0460640A1 (de) * 1990-06-07 1991-12-11 Diafoil Hoechst Co., Ltd Polyesterfilm für magnetische Aufzeichnungsmedien
DE69131923T2 (de) * 1990-11-26 2000-10-05 Teijin Ltd Biaxial ausgerichteter Polyesterfilm
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
JP2729189B2 (ja) * 1991-09-03 1998-03-18 ダイアホイルヘキスト株式会社 磁気記録媒体用積層ポリエステルフィルム

Also Published As

Publication number Publication date
EP0590570B1 (de) 2001-06-13
US5670236A (en) 1997-09-23
EP0590570A1 (de) 1994-04-06
KR100261781B1 (ko) 2000-07-15
KR940007789A (ko) 1994-04-28
DE69330327T2 (de) 2002-05-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee