JPH0363132B2 - - Google Patents

Info

Publication number
JPH0363132B2
JPH0363132B2 JP8768386A JP8768386A JPH0363132B2 JP H0363132 B2 JPH0363132 B2 JP H0363132B2 JP 8768386 A JP8768386 A JP 8768386A JP 8768386 A JP8768386 A JP 8768386A JP H0363132 B2 JPH0363132 B2 JP H0363132B2
Authority
JP
Japan
Prior art keywords
film
carbon atoms
weight
parts
alkyl group
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
JP8768386A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62245520A (ja
Inventor
Shigeo Uchiumi
Shigeyuki 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.)
Diafoil Co Ltd
Original Assignee
Diafoil Co 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
Application filed by Diafoil Co Ltd filed Critical Diafoil Co Ltd
Priority to JP61087683A priority Critical patent/JPS62245520A/ja
Priority to GB8708773A priority patent/GB2190020A/en
Priority to KR1019870003651D priority patent/KR920003488B1/ko
Priority to KR1019890001447A priority patent/KR920003438B1/ko
Priority to US07/038,898 priority patent/US4781963A/en
Publication of JPS62245520A publication Critical patent/JPS62245520A/ja
Publication of JPH0363132B2 publication Critical patent/JPH0363132B2/ja
Granted 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
    • B29C55/143—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively firstly parallel to the direction of feed and then transversely thereto
    • 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
    • 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
    • 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.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24372—Particulate matter
    • Y10T428/24413—Metal or metal compound
    • 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
    • Y10T428/24421—Silicon containing
    • 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
    • Y10T428/256—Heavy metal or aluminum 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
    • Y10T428/25—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
    • Y10T428/25—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.]

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Magnetic Record Carriers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Bipolar Integrated Circuits (AREA)
  • Semiconductor Integrated Circuits (AREA)
JP61087683A 1986-04-16 1986-04-16 磁気記録媒体 Granted JPS62245520A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP61087683A JPS62245520A (ja) 1986-04-16 1986-04-16 磁気記録媒体
GB8708773A GB2190020A (en) 1986-04-16 1987-04-13 Magnetic recording medium
KR1019870003651D KR920003488B1 (ko) 1986-04-16 1987-04-16 자기기록 매체
KR1019890001447A KR920003438B1 (ko) 1986-04-16 1987-04-16 샌드위치된 산화 실리콘층과 질화 실리콘층을 갖는 프로그램 가능 접속패드
US07/038,898 US4781963A (en) 1986-04-16 1987-04-16 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61087683A JPS62245520A (ja) 1986-04-16 1986-04-16 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS62245520A JPS62245520A (ja) 1987-10-26
JPH0363132B2 true JPH0363132B2 (OSRAM) 1991-09-30

Family

ID=13921726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61087683A Granted JPS62245520A (ja) 1986-04-16 1986-04-16 磁気記録媒体

Country Status (4)

Country Link
US (1) US4781963A (OSRAM)
JP (1) JPS62245520A (OSRAM)
KR (2) KR920003488B1 (OSRAM)
GB (1) GB2190020A (OSRAM)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0827934B2 (ja) * 1987-09-10 1996-03-21 ダイアホイルヘキスト株式会社 磁気カード
JP2766287B2 (ja) * 1989-01-27 1998-06-18 日世株式会社 ミルクシェークおよびその製造方法
JP2650441B2 (ja) * 1989-10-18 1997-09-03 東レ株式会社 二軸配向積層フィルム
JPH03137814A (ja) * 1989-10-24 1991-06-12 Diafoil Co Ltd フロッピーディスク用二軸配向ポリエステルフィルム
DE4034869A1 (de) * 1990-11-02 1992-05-07 Hoechst Ag Flaechenhafter formkoerper mit wenigstens einseitig regelmaessig strukturierter oberflaeche
GB9110902D0 (en) * 1991-05-21 1991-07-10 Ici Plc Polymeric film
EP0543600B1 (en) * 1991-11-18 1998-10-21 Toray Industries, Inc. Biaxially oriented thermoplastic resin film
WO1994013466A1 (en) * 1992-12-09 1994-06-23 Hoechst Aktiengesellschaft Biaxially oriented penbb film for magnetic recording medium and magnetic recording media made therewith
JPH08504385A (ja) * 1992-12-09 1996-05-14 ヘキスト・アクチェンゲゼルシャフト 官能性シランで下塗りした二軸配向コポリエステルフィルムおよびそのフィルムラミネート
WO1994013463A1 (en) * 1992-12-09 1994-06-23 Hoechst Aktiengesellschaft Improved biaxially oriented copolyester film for magnetic recording media
WO1994013470A1 (en) * 1992-12-09 1994-06-23 Hoechst Aktiengesellschaft Biaxially oriented copolyester film for magnetic recording disks and magnetic recording disks made therefrom
EP0671990A1 (en) * 1992-12-09 1995-09-20 Hoechst Aktiengesellschaft Biaxially oriented copolyester film for capacitor dielectric use or thermal transfer ribbon use
EP0943428B1 (en) * 1997-10-03 2003-01-02 Toray Industries, Inc. Biaxially oriented polyester film

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7800122A (nl) * 1978-01-05 1979-07-09 Philips Nv Magnetische registratieband en drager voor een magnetische registratieband.
JPS54107313A (en) * 1978-02-09 1979-08-23 Sony Corp Magnetic recording medium
JPS56139551A (en) * 1980-04-03 1981-10-31 Teijin Ltd Transparent, easily slipping polyethylene terephthalate film
JPS5774828A (en) * 1980-10-24 1982-05-11 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57185345A (en) * 1981-05-08 1982-11-15 Diafoil Co Ltd Production of polyester film
US4439479A (en) * 1982-01-15 1984-03-27 Teijin Limited Slippery biaxially stretched polyester films
JPS59189163A (ja) * 1983-04-12 1984-10-26 Toray Ind Inc ポリエステル組成物
JPS59202254A (ja) * 1983-05-02 1984-11-16 Toray Ind Inc ポリエステル組成物
JPS59221354A (ja) * 1983-05-31 1984-12-12 Toray Ind Inc 配向ポリエステルフイルム
FR2549076B1 (fr) * 1983-07-13 1986-10-10 Rhone Poulenc Films Films en polyester charges et bi-etires et utilisation de ces films pour la fabrication notamment de bandes magnetiques
US4590119A (en) * 1983-07-15 1986-05-20 Toray Industries, Inc. Polyester film and magnetic recording medium therefrom
JPS60166435A (ja) * 1984-02-09 1985-08-29 Toyobo Co Ltd 配向ポリエステルフイルム
JPS59229314A (ja) * 1984-05-16 1984-12-22 Diafoil Co Ltd ポリエステルフイルム
DE3673565D1 (de) * 1985-05-29 1990-09-27 Teijin Ltd Polyesterfilm fuer magnetische aufzeichnungstraeger.

Also Published As

Publication number Publication date
GB2190020A (en) 1987-11-11
JPS62245520A (ja) 1987-10-26
KR920003438B1 (ko) 1992-05-01
US4781963A (en) 1988-11-01
GB8708773D0 (en) 1987-05-20
KR870010491A (ko) 1987-11-30
KR920003488B1 (ko) 1992-05-01

Similar Documents

Publication Publication Date Title
US5096773A (en) Biaxially oriented polyester film
JPH0363132B2 (OSRAM)
JPH0639538B2 (ja) 二軸配向ポリエステルフィルム
EP0590570B1 (en) Biaxially oriented polyester film for magnetic recording medium
JPH0336061B2 (OSRAM)
JPS6238766B2 (OSRAM)
JPH0437092B2 (OSRAM)
JPH0358580B2 (OSRAM)
JPH07121573B2 (ja) 複合化フィルム
JPH0420369B2 (OSRAM)
JP3254258B2 (ja) ポリエチレン−２，６−ナフタレートフィルム
JP2954983B2 (ja) 熱可塑性ポリエステル組成物およびそれからなるフィルム
JP2001162750A (ja) 易接着性二軸配向ポリエステルフィルム
JPS63191838A (ja) 二軸配向ポリエステルフイルム
JPH0684445B2 (ja) 磁気記録媒体用二軸配向ポリエステルフィルム
JPS63300423A (ja) 磁気記録媒体用二軸配向ポリエステルフイルム
JPH0625268B2 (ja) ポリエチレン−２，６−ナフタレートフィルム
JPH0639541B2 (ja) 二軸配向ポリエステルフィルム
JPH05117420A (ja) ポリエチレン―２，６―ナフタレートフイルム
JP2606198B2 (ja) ポリエステルフイルム
KR100291275B1 (ko) 자기 기록 매체용 필름
JPH0733964A (ja) 磁気記録媒体用二軸配向ポリエステルフィルム
JPH0363133B2 (OSRAM)
JPS6297828A (ja) 二軸延伸ポリエステルフイルム
JP2003103739A (ja) 積層ポリエステルフィルムおよび磁気記録媒体