KR870010491A - 자기기록 매체 - Google Patents

자기기록 매체 Download PDF

Info

Publication number
KR870010491A
KR870010491A KR870003651A KR870003651A KR870010491A KR 870010491 A KR870010491 A KR 870010491A KR 870003651 A KR870003651 A KR 870003651A KR 870003651 A KR870003651 A KR 870003651A KR 870010491 A KR870010491 A KR 870010491A
Authority
KR
South Korea
Prior art keywords
carbon atoms
film
weight
unsaturated hydrocarbon
alkyl group
Prior art date
Application number
KR870003651A
Other languages
English (en)
Other versions
KR920003438B1 (ko
Inventor
시게오 우쓰미
시게유끼 와따나베
Original Assignee
다까미야 다다시
다이아호일 가부시끼가이샤
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 다까미야 다다시, 다이아호일 가부시끼가이샤 filed Critical 다까미야 다다시
Publication of KR870010491A publication Critical patent/KR870010491A/ko
Application granted granted Critical
Publication of KR920003438B1 publication Critical patent/KR920003438B1/ko

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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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.]

Abstract

내용 없음

Description

자기기록 매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (6)

  1. 평균표면조도 Ra 0.005 내지 0.013㎛, 필름-필름의 정마찰계수(㎲) 0.28 이하, 필름-필름 동마찰계수(μd) 0.28 이하 및 50회 반복이동중 최대마찰계수 0.300 이하를 갖는 2축 배향 폴리에스테르 필름과 그 폴리에스테르 필름의 1면에 형성된 자기층으로 구성되고, 상기 2축 배향 폴리에스테르 필름은 폴리에스테르 100중량부에 대해
    (A) 평균직경 0.1 내지 1.5㎛의 내부 입자 및/또는 평균 직경 0.1 내지 1.0㎛의 불활성 부가 입자 0.001내지 1.0중량부와
    (B) 각각 서로 다른 탄소수 18이상의 고급 지방족 모노카르복시산 혼합물 및/또는 각각 서로 다른 탄소수 18 이상의 그 유도체 혼합물로 구성되고, 탄소원자 34 이상의 고급 지방족 모노카르복시산 및/또는 탄소원자 34 이상의 그 유도체 10중량% 이상을 함유하고, 그리고 융점이 80 내지 200℃인 유기윤활제 0.005 내지 2중량부를 포함하고,
    상기 고급 지방족 모토카르복시산 및 그 유도체가 다음 일반식(1)로 나타내지는 자기 기록 매체:
    상기식에서,
    R1은 10 이상의 탄소원자를 갖는 불포화 탄화수소기 또는 아킬기이고,
    R2는 1이상의 탄소원자를 갖는 알킬기 또는 2 이상의 탄소원자를 갖는 불포화탄화수소기이고,
    R3는 수소원자, 1 이상의 탄소원자를 갖는 알킬기, 또는 2 이상의 탄소원자를 갖는 불포화 탄화수소기이고,
    R4는 수소원자, 금속, 1 이상의 탄소원자를 갖는 알킬기 또는 2 이상의 탄소원자를 갖는 불포화 탄화수소기이고,
    R1,R2,R3및 R4에서 탄소원자의 총수는 16 이상이다.
  2. 제1항에 있어서, 상기 윤활제가 34 이상의 탄소원자를 갖는 고급 지방족 모노카르복시산 및/또는 34이상의 탄소원자를 갖는 그의 유도체 20중량% 이상을 함유하는 자기 기록 매체.
  3. 제1항에 있어서, 상기 2축 배향된 폴리에스테르 필름이 다음 관계식(2),(3) 및 (4)를 만족하는 자기 기록 매체:
    상기식에서,
    n은 평균 굴절률을 나타내고,
    △p는 표면 배향도를 나타내며, △n은 복굴절률을 나타낸다.
  4. 제1항에 있어서, 상기 돌기로부터 유래되고 상기 2축 배향된 폴리에스테르 필름의 표면 1mm2당 2㎛ 이상의 주축을 갖는 돌기 및 요부쌍의 수 A가 다음 관계식 (5)을 만족하는 자기 기록 매체:
  5. 제1항에 있어서, 상기 2축 배향된 폴리에스테르 필름이 폴리에스테르 100 중량부에 대해 평균 직경 0.1 내지 0.6㎛를 갖는 소직경 내부입자 0.1 내지 1.0 중량부와 평균직경 0.4 내지 1.0㎛를 갖는 큰 직경 불활성 부가 입자 0 내지 0.1 중량부를 함유하는 자기 기록매체.
  6. 폴리에스테르 100 중량부에 대하여 평균직경 0.1내지 1.5㎛의 내부 입자 및/또는 평균직경 0.1내지 1.0㎛ 불활성 부가 입자 0.001 내지 1.0 중량부를 함유하는 폴리에스테르 중합체를 폴리에스테르 100 중량부에 대하여 각각 서로 다른 18 이상의 탄소수를 갖는 고급 지방족 모노카르복시산의 혼합물 및/또는 각각 서로 다른 18 이상의 탄소수를 갖는 그 유도체의 혼합물로 구성되고, 34 이상의 탄소원자를 갖는 하기 일반식(1)의 고급 지방족 모노카르복시산 및/ 또는 34이상의 탄소원자를 갖는 그의 유도체 10중량 % 이상을 함유하고 80내지 200℃의 융점을 갖는 유기 윤활제 0.005 내지 2중량부와 혼합하고:
    그 혼합물을 250 내지 310℃에서 무정형 필름으로 용융압출하고;
    연신후의 복굴절률이 0.030 내지 0.130으로 되도록 무정형 필름을 75 내지 140℃에서 2.0 내지 0.8배까지 종방향으로 연신시키고;
    그 결과 얻어진 필름을 90 내지 150℃에서 2.0 내지 5.0배까지 횡방향으로 연신시키고;
    이와 같이 2축 연신된 필름을 200 내지 240℃에서 1내지 60초동안 열경화시켜 평균표면조도 Ra 0.005내지 0.013㎛, 필름-필름의 정마찰계수(μs) 0.28이하, 필름-필름의 동마찰계수(μd) 0.28 이하, 및 50회 반복 이동시의 최대마찰계수 0.30 이하인 2축 배향 폴리에스테르 필름을 얻고;그리고
    상기 2축 배향 폴리에스테르 필름의 1면에 자기층을 형성하는 단계로 구성되는 자기기록 매체의 제조방법:
    상기식에서,
    R1은 10 이상의 탄소원자를 갖는 불포화 탄화수소기 또는 아킬기이고,
    R2는 1 이상의 탄소원자를 갖는 알킬기 또는 2이상의 탄소원자를 갖는 불포화탄화수소기이고,
    R3는 수소원자, 1 이상의 탄소원자를 갖는 알킬기, 또는 2 이상의 탄소원자를 갖는 불포화 탄화수소이고,
    R4는 수소원자, 금속, 1 이상의 탄소원자를 갖는 알킬기 또는 2 이상의 탄소원자를 갖는 불포화 탄화수소기이고,
    R1,R2,R3및 R4에서 탄소원자의 총수는 16 이상임.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890001447A 1986-04-16 1987-04-16 샌드위치된 산화 실리콘층과 질화 실리콘층을 갖는 프로그램 가능 접속패드 KR920003438B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP61087683A JPS62245520A (ja) 1986-04-16 1986-04-16 磁気記録媒体
JP87683 1986-04-16
US155,193 1988-02-11

Publications (2)

Publication Number Publication Date
KR870010491A true KR870010491A (ko) 1987-11-30
KR920003438B1 KR920003438B1 (ko) 1992-05-01

Family

ID=13921726

Family Applications (2)

Application Number Title Priority Date Filing Date
KR1019890001447A KR920003438B1 (ko) 1986-04-16 1987-04-16 샌드위치된 산화 실리콘층과 질화 실리콘층을 갖는 프로그램 가능 접속패드
KR1019870003651D KR920003488B1 (ko) 1986-04-16 1987-04-16 자기기록 매체

Family Applications After (1)

Application Number Title Priority Date Filing Date
KR1019870003651D KR920003488B1 (ko) 1986-04-16 1987-04-16 자기기록 매체

Country Status (4)

Country Link
US (1) US4781963A (ko)
JP (1) JPS62245520A (ko)
KR (2) KR920003438B1 (ko)
GB (1) GB2190020A (ko)

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
DE69227354T2 (de) * 1991-11-18 1999-05-06 Toray Industries Biaxial orientierter Film aus thermoplastischem Harz
EP0674580A4 (en) * 1992-12-09 1995-11-22 Hoechst Ag BIAXALLY IMPROVED ORIENTED POLYESTER FILM FOR MAGNETIC RECORDING MEDIUM.
WO1994013470A1 (en) * 1992-12-09 1994-06-23 Hoechst Aktiengesellschaft Biaxially oriented copolyester film for magnetic recording disks and magnetic recording disks made therefrom
WO1994013464A1 (en) * 1992-12-09 1994-06-23 Hoechst Aktiengesellschaft Biaxially oriented copolyester film for capacitor dielectric use or thermal transfer ribbon use
WO1994013466A1 (en) * 1992-12-09 1994-06-23 Hoechst Aktiengesellschaft Biaxially oriented penbb film for magnetic recording medium and magnetic recording media made therewith
EP0673310A4 (en) * 1992-12-09 1995-12-06 Hoechst Ag BIAXIAL WITH A FUNCTIONAL SILANE BASED, ORIENTED COPOLYESTER FILM AND SUCH COMPOSITE FILMS.
CA2273499A1 (en) * 1997-10-03 1999-04-15 Iwao Okazaki 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
EP0203604B1 (en) * 1985-05-29 1990-08-22 Teijin Limited Polyester film for magnetic recording media

Also Published As

Publication number Publication date
JPH0363132B2 (ko) 1991-09-30
JPS62245520A (ja) 1987-10-26
KR920003438B1 (ko) 1992-05-01
KR920003488B1 (ko) 1992-05-01
US4781963A (en) 1988-11-01
GB8708773D0 (en) 1987-05-20
GB2190020A (en) 1987-11-11

Similar Documents

Publication Publication Date Title
KR870010491A (ko) 자기기록 매체
KR950018195A (ko) 폴리에틸렌-2,6-나프탈렌디카르복실레이트의 이축 배향 필름
KR860009384A (ko) 가요성 자기 기록 매체
KR860008872A (ko) 금속박막 자기기록 매체용 폴리에스테르 필름
KR940018217A (ko) 이축 배향 적층 폴리에스테르 필름 및 이것을 베이스 필름으로 하는 자기 기록 매체
KR870005789A (ko) 자기기록테이프용 폴리에틸렌-2,6-나프탈레이트 필름
KR950031507A (ko) 이축 배향 적층 폴리에스테르 필름
KR910000871A (ko) 자기기록 매체용 폴리에스테르 필름
KR890701665A (ko) 폴리에스테르 필름 및 자기 기록매체
GB1526625A (en) Process for subbing photographic hydrophobic films
KR910018983A (ko) 자기기록매체용 2 축배향 폴리에스테르 필름
KR870006979A (ko) 배향 풀리에스테르 필름
KR920009923A (ko) 폴리에스테르 필름
KR930703385A (ko) 폴리에틸렌-2,6-나프탈렌디카르복실레이트 필름
KR880008980A (ko) 안트라퀴논 화합물 및 이를 함유하는 편광 필름
KR900013056A (ko) 액정 폴리에스테르 수지 조성물
KR870004402A (ko) 자기 디스크
KR930001157A (ko) 광학 테이프
DE3769928D1 (de) Leichtgleitender polyarylenthioaetherfilm und verfahren zu seiner herstellung.
KR880004447A (ko) 광학적 정보 기록 매체
KR910011956A (ko) 2축 배향 폴리에스테르 필름
KR870009257A (ko) 투명하고 미끄럼성이 좋은 2축연신 폴리에스테르 필름
KR870000688A (ko) 광디스크
KR830002016A (ko) 에폭시수지의 부착 방지제
KR970002915A (ko) 윤활제 및 그를 사용한 자기 기록 매체

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
NORF Unpaid initial registration fee