KR930002084A - 고밀도 자기 디스크용 폴리에스테르 다층 필름 - Google Patents

고밀도 자기 디스크용 폴리에스테르 다층 필름 Download PDF

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Publication number
KR930002084A
KR930002084A KR1019920011709A KR920011709A KR930002084A KR 930002084 A KR930002084 A KR 930002084A KR 1019920011709 A KR1019920011709 A KR 1019920011709A KR 920011709 A KR920011709 A KR 920011709A KR 930002084 A KR930002084 A KR 930002084A
Authority
KR
South Korea
Prior art keywords
polyester
multilayer film
layer
density magnetic
high density
Prior art date
Application number
KR1019920011709A
Other languages
English (en)
Inventor
시게오 우쯔미
마사시 이나가끼
유꼬 와따누끼
Original Assignee
원본미기재
다이아호일 훽스트 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 원본미기재, 다이아호일 훽스트 가부시끼가이샤 filed Critical 원본미기재
Publication of KR930002084A publication Critical patent/KR930002084A/ko

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • G11B5/733—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 characterised by the addition of non-magnetic particles
    • 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
    • G11B5/733—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 characterised by the addition of non-magnetic particles
    • G11B5/7334—Base layer characterised by composition or structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08—Dimensions, e.g. volume
    • B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2429/00—Carriers for sound or information
    • B32B2429/02—Records or discs
    • 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
    • Y10T428/25—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
    • Y10T428/259—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

  • Magnetic Record Carriers (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

내용 없음.

Description

고밀도 자기 디스크용 폴리에스테르 다층 필름
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (7)

  1. 폴리에스테르(A)층 및 하기 식(1) 내지 (3)으로 표시되는 표면 특성과 3μm이하의 두께를 갖고, 상기 폴리에스테르 층(A)의 적어도 일측상에 적층되는 폴리에스테르(B)층을 포함하는 고밀도 자기 디스크용 폴리에스테르 다층 필름.
    0.002≤Ra≤0.015 (1)
    F3=0 (2)
    50≤Pc(3)
    상기식에서, Ra는 폴리에스테르층(B)의 표면의 중심선 평균 조도(μm);F3는 폴리에스테르층(B)의 표면에서 25cm2마다 존재하는, 0.81μm이상의 높이를 갖는 돌기들의 수; Pc는 폴리에스테르층(B)의 표면에서의 피크 계수(0.8mm 당 피크들의 수)를 각각 나타낸다.
  2. 제1항에 있어서, 상기 폴리에스테르(A)와 폴리에스테르(B)가 각각 방향족 디카르복시산, 및 지방족 글리콜의 중축합물인 고밀도 자기 디스크용 폴리에스테르 다층필름.
  3. 제1항에 있어서, 상기 폴리에스테르(B)가 유기 미립자, 무기 미립자 또는 그 혼합물을 0.5 내지 10.0중량%인 함유하는 고밀도 자기 디스크용 폴리에스테르 다층 필름.
  4. 제3항에 있어서, 상기 미립자가 1내지 100nm의 1차입경을 갖고 그의 함량이 0.5내지 10.0중량%인 고밀도 자기 디스크용 폴리에스테르 다층 필름.
  5. 제4항에 있어서, 상기 미립자가 콜로이드상 실리카 및 카본 블랙이 고밀도 자기 디스크용 폴리에스테르 다층 필름.
  6. 제1항에 있어서, 상기 폴리에스테르(A)층의 두께가 32 내지 99.9μm이고, 폴리에스테르(B)층의 두께가 0.1 내지 3μm이며, 상기 다층 필름의 두께가 35 내지 100μm인 고밀도 자기 디스크용 폴리에스테르 다층 필름.
  7. 제1항에 있어서, 동시 압출법에 의해 제조되는 고밀도 자기 디스크용 폴리에스테르 다층 필름.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920011709A 1991-07-04 1992-06-30 고밀도 자기 디스크용 폴리에스테르 다층 필름 KR930002084A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP91/164710 1991-07-04
JP3164710A JPH058357A (ja) 1991-07-04 1991-07-04 高密度磁気デイスク用ポリエステルフイルム

Publications (1)

Publication Number Publication Date
KR930002084A true KR930002084A (ko) 1993-02-22

Family

ID=15798416

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920011709A KR930002084A (ko) 1991-07-04 1992-06-30 고밀도 자기 디스크용 폴리에스테르 다층 필름

Country Status (7)

Country Link
US (1) US5318823A (ko)
EP (1) EP0522412B1 (ko)
JP (1) JPH058357A (ko)
KR (1) KR930002084A (ko)
CA (1) CA2072409A1 (ko)
DE (1) DE69202628T2 (ko)
MX (1) MX9203872A (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2970001B2 (ja) * 1991-03-06 1999-11-02 三菱化学ポリエステルフィルム株式会社 磁気テープ用ポリエステルフィルム
JP3052447B2 (ja) * 1991-07-12 2000-06-12 三菱化学ポリエステルフィルム株式会社 高密度磁気記録媒体用ポリエチレンナフタレートフィルム
JP3057893B2 (ja) * 1992-04-28 2000-07-04 三菱化学ポリエステルフィルム株式会社 積層フィルム
JPH06333227A (ja) * 1993-05-24 1994-12-02 Fuji Photo Film Co Ltd 磁気記録媒体
JP2925057B2 (ja) * 1993-08-30 1999-07-26 東レ株式会社 二軸配向積層ポリエステルフイルム
US5656356A (en) * 1994-01-11 1997-08-12 Teijin Limited Biaxially oriented laminated polyester film
US5976668A (en) * 1995-02-28 1999-11-02 Sony Corporation Base film for magnetic recording medium and magnetic recording medium using same
US6617377B2 (en) * 2001-10-25 2003-09-09 Cts Corporation Resistive nanocomposite compositions
US7141184B2 (en) 2003-12-08 2006-11-28 Cts Corporation Polymer conductive composition containing zirconia for films and coatings with high wear resistance
US20060043343A1 (en) * 2004-08-24 2006-03-02 Chacko Antony P Polymer composition and film having positive temperature coefficient
JP2021038388A (ja) * 2019-09-02 2021-03-11 東洋紡フイルムソリューション株式会社 二軸配向ポリエステルフィルム

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198458A (en) * 1973-05-11 1980-04-15 Teijin Limited Laminate polyester films
DE3368806D1 (en) * 1982-03-10 1987-02-05 Toray Industries Laminated film and magnetic recording medium made therewith
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
FR2548958B1 (fr) * 1983-07-13 1986-03-21 Rhone Poulenc Films Films polyesters composites
US4732814A (en) * 1985-10-03 1988-03-22 Toray Industries, Inc. Polyester film with smooth and highly adhesive surface and method of making same
JPS62131036A (ja) * 1985-12-02 1987-06-13 Teijin Ltd ポリエステルフイルム
JPH0625267B2 (ja) * 1985-12-17 1994-04-06 ダイアホイルヘキスト株式会社 高密度磁気記録媒体用ポリエチレン−２，６−ナフタレ−トフイルム
JPS6343931A (ja) * 1986-08-12 1988-02-25 Diafoil Co Ltd 磁気記録媒体用ポリエステルフイルム
US5045379A (en) * 1988-06-03 1991-09-03 Diafoil Company, Limited Polyester film for high density magnetic recording medium
DE68929156T2 (de) * 1988-06-08 2000-10-19 Toray Industries Biaxial orientierte Verbundfolie

Also Published As

Publication number Publication date
JPH058357A (ja) 1993-01-19
MX9203872A (es) 1994-03-31
EP0522412A1 (en) 1993-01-13
DE69202628T2 (de) 1996-02-01
CA2072409A1 (en) 1993-01-05
US5318823A (en) 1994-06-07
DE69202628D1 (de) 1995-06-29
EP0522412B1 (en) 1995-05-24

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