KR870008679A - 자기 테이프용 다중-층 폴리에스테르 필름 - Google Patents

자기 테이프용 다중-층 폴리에스테르 필름 Download PDF

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KR870008679A
KR870008679A KR870002723A KR870002723A KR870008679A KR 870008679 A KR870008679 A KR 870008679A KR 870002723 A KR870002723 A KR 870002723A KR 870002723 A KR870002723 A KR 870002723A KR 870008679 A KR870008679 A KR 870008679A
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Prior art keywords
film
mentioned
layer
polyester
microns
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KR870002723A
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English (en)
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KR950007555B1 (ko
Inventor
달만 헤르만
헨셀 하르트무트
세퍼 베르너
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베틀라우퍼, 게르만
훽스트 아크티엔게젤샤프트
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Application filed by 베틀라우퍼, 게르만, 훽스트 아크티엔게젤샤프트 filed Critical 베틀라우퍼, 게르만
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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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • 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
    • 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
    • Y10T428/25—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
    • Y10T428/259—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

  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Magnetic Record Carriers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

내용 없음

Description

자기 테이프용 다중-층 폴리에스테르 필름
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (20)

  1. ⅰ) 표면조도 Ra가 0.010마이크론 이하인 제 1 폴리에스테르 필름층 ; 및 ⅱ) 표면조도 Ra가 0.010 마이크론보다 큰 제 2 폴리에스테르 필름층으로 이루어지며, 단, 10마이크론 이하의 두께를 가지고, 또한 종방향으로 6,500N/mm2이상의 탄성률을 가짐을 특징으로 하는, 탁얼한 탄성률을 갖는 동시 압출되고 2측 연신된 얇은 다중-층 폴리에스테르 필름.
  2. 제 1 항에 있어서, 언급된 제 1 층이 0.005 마이크론 이하의 표면조도 Ra를 갖는 필름.
  3. 제 1 항에 있어서, 언급된 제 1 층이 폴리에스테르의 블랜드로 이루어지는 필름.
  4. 제 1 항에 있어서, 언급된 제 1 층이 폴리에틸렌 테레프탈레이트로 이루어지는 필름.
  5. 제 1 항에 있어서, 언급된 제 2 층이 0.001 내지 5㎛의 평균 입자 크기를 갖는 입자를, 제 2 층의 총 중량을 기준하여 0.01 내지 1 중량 %의 양으로 함유하는 필름.
  6. 제 5 항에 있어서, 언급된 입자가 황산바륨, 가교결합된 아크릴레이트, 탄산칼슘, 이산화규소, 카올린, 및 이산화티탄으로 이루어진 그룹 중에서 선택되는 필름.
  7. 제 5 항에 있어서, 언급된 입자가 가교 결합된 아크릴레이트 또는 항산바륨으로 이루어지는 필름.
  8. 제 5 항에 있어서, 언급된 제 2 층이 폴리에스테르의 블랜드로 이루어지는 필름.
  9. 제 5 항에 있어서, 언급된 제 2 층이 폴리에스틸렌 테레프탈레이트로 이루어지는 필름.
  10. 제 5 항에 있어서, 언급된 제 2 층이 폴리핵생성제를 함유하는 필름.
  11. 제10항에 있어서, 언급된 핵생성제가 나트륨 몬타네이트인 필름.
  12. 제11항에 있어서, 언급된 나트륨 몬타네이트의 양이 언급된 제 2 층의 총 중량을 기준하여 0.01 내지 5중량 % 범위인 필름.
  13. ⅰ) 어떠한 입자도 함유하지 않는 제 1 폴리에스테르수지, 및 (a) 0.001내지 5마이크론의 평균입자 크기를 갖는 입자 0.01 내지 1 중량 %와 (b) 핵 생성제 0.5 내지 0.1% 중량을 함유하는 제 2 폴리에스테르 수지를 별개의 압출기내에서 용융시키고,
    ⅱ) 언급된 제 1 및 제 2 폴리에스테르 수지를 다이를 통해 냉각 드럼상에 동시에 압출시킴으로써 캐스트 동시 압출된 폴리에스테르 시이트를 형성시킨 다음,
    ⅲ) 언급된 캐스트 동시 압출된 폴리에스테르 시이트를 연신시키고 계속해서 열고정(heat setting)시켜, 종방향으로 6,500N/mm2이상의 탄성률 및 10 마이크론 이하의 두께를 가지며, 한쪽 표면은 0.010 마이크론 이하의 표면 조도를 갖고 반대쪽 표면은 0.010 마이크론보다 큰 표면 조도를 갖는 2 측 연신된 다중층 폴리에스테르 필름을 생성시킴을 특징으로 하여, 탁월한 탄성률을 갖는 동시 압출된 얇은 폴리에스테르 필름을 제조하는 방법.
  14. 제13항에 있어서, 언급된 핵 생성제가 나트륨 몬타네이트인 방법.
  15. 제13항에 있어서, 언급된 연신공정율, 1.05 내지 9.0 범위내의 총 연신비로 종방향 및 횡방향으로 필름을 연신시켜 수행하는 방법.
  16. 제15항에 있어서, 연신을 2-단계 공정으로 수행하는 방법
  17. 제15항에 있어서, 연신을 다-단계 공정으로 수행하는 방법
  18. 제15항에 있어서, 연신을 동시 연신공정으로 수행하는 방법
  19. 제13항에 있어서, 열 고정을 Tg+70℃와 중합체 융점 사이의 온도범위내에서 수행하는 방법
  20. 제19항에 있어서, 언급된 열 고정을 0.5 내지 100초의 시간 간격으로 수행하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870002723A 1986-03-26 1987-03-25 자기 테이프용 다중-층 폴리에스테르 필름 KR950007555B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863610167 DE3610167A1 (de) 1986-03-26 1986-03-26 Mehrschichtige polyesterfolie fuer magnetische informationstraeger
DEP3610167.2 1986-03-26

Publications (2)

Publication Number Publication Date
KR870008679A true KR870008679A (ko) 1987-10-20
KR950007555B1 KR950007555B1 (ko) 1995-07-12

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ID=6297305

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KR1019870002723A KR950007555B1 (ko) 1986-03-26 1987-03-25 자기 테이프용 다중-층 폴리에스테르 필름

Country Status (5)

Country Link
US (1) US4798759A (ko)
EP (1) EP0238985B1 (ko)
JP (1) JP2583497B2 (ko)
KR (1) KR950007555B1 (ko)
DE (2) DE3610167A1 (ko)

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DE3414309A1 (de) * 1984-04-16 1985-10-24 Hoechst Ag, 6230 Frankfurt Kratzerfreie polyestermehrschichtfolie
DE3414347A1 (de) * 1984-04-16 1985-10-24 Hoechst Ag, 6230 Frankfurt Traegerfolie fuer magnetische informationstraeger
JPS61239930A (ja) * 1985-04-17 1986-10-25 Teijin Ltd 磁気記録用ポリエステルフイルム
JP3111331B2 (ja) * 1992-07-28 2000-11-20 有限会社マス構造企画 擁壁用ブロック及び擁壁の構築構造

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JP2583497B2 (ja) 1997-02-19
EP0238985B1 (de) 1995-07-26
EP0238985A2 (de) 1987-09-30
US4798759A (en) 1989-01-17
EP0238985A3 (en) 1989-05-24
JPS62236736A (ja) 1987-10-16
KR950007555B1 (ko) 1995-07-12
DE3610167A1 (de) 1987-10-01
DE3751424D1 (de) 1995-08-31

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