WO1984000240A1 - Support d'enregistrement magnetique - Google Patents

Support d'enregistrement magnetique Download PDF

Info

Publication number
WO1984000240A1
WO1984000240A1 PCT/JP1983/000210 JP8300210W WO8400240A1 WO 1984000240 A1 WO1984000240 A1 WO 1984000240A1 JP 8300210 W JP8300210 W JP 8300210W WO 8400240 A1 WO8400240 A1 WO 8400240A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording medium
resin
magnetic recording
magnetic
molecular weight
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.)
Ceased
Application number
PCT/JP1983/000210
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
Yoshinobu Ninomiya
Akira Hashimoto
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.)
Sony Corp
Original Assignee
Sony 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=14644902&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1984000240(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sony Corp filed Critical Sony Corp
Priority to DE8383902124T priority Critical patent/DE3370711D1/de
Publication of WO1984000240A1 publication Critical patent/WO1984000240A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
    • 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
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing

Definitions

  • the present invention relates to a magnetic recording medium characterized by containing a resin having at least one kind of polar group selected from the group consisting of and having a molecular weight of 50,000 or less. is there.
  • the above-mentioned resin having a polar group is contained in the binder in an amount of not less than 50% by weight of all the binder components. If the amount is less than this, a sufficient dispersion effect cannot be expected.
  • the binder used in combination with these resins any of the resins usually used for binders can be used.

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
PCT/JP1983/000210 1982-07-01 1983-07-01 Support d'enregistrement magnetique Ceased WO1984000240A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8383902124T DE3370711D1 (en) 1982-07-01 1983-07-01 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57114719A JPS595423A (ja) 1982-07-01 1982-07-01 磁気記録媒体

Publications (1)

Publication Number Publication Date
WO1984000240A1 true WO1984000240A1 (fr) 1984-01-19

Family

ID=14644902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1983/000210 Ceased WO1984000240A1 (fr) 1982-07-01 1983-07-01 Support d'enregistrement magnetique

Country Status (5)

Country Link
US (1) US4529661A (https=)
EP (1) EP0112924B2 (https=)
JP (1) JPS595423A (https=)
DE (1) DE3370711D1 (https=)
WO (1) WO1984000240A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0375660A2 (en) 1985-10-04 1990-06-27 Union Carbide Corporation Phosphorylated reaction products and compositions incorporating such products

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154618A (en) * 1981-03-19 1982-09-24 Sony Corp Magnetic recording medium
JPS595424A (ja) * 1982-07-01 1984-01-12 Sony Corp 磁気記録媒体
JPS598127A (ja) * 1982-07-05 1984-01-17 Sony Corp 磁気記録媒体
US4562117A (en) * 1983-05-26 1985-12-31 Konishiroku Photo Industry Co., Ltd. Magnetic recording medium and a process of fabricating such magnetic recording medium
JPS6057527A (ja) * 1983-09-08 1985-04-03 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6079522A (ja) * 1983-10-04 1985-05-07 Sony Corp 磁気記録媒体
JPS6095722A (ja) * 1983-10-28 1985-05-29 Sony Corp 磁気記録媒体
US4634633A (en) * 1983-12-15 1987-01-06 Sony Corporation Magnetic recording medium
DE3516781A1 (de) * 1984-05-11 1985-11-14 Nippon Zeon Co., Ltd., Tokio/Tokyo Magnetische anstrichfarbe fuer magnetische aufzeichnungsmedien
JPS60242467A (ja) * 1984-05-17 1985-12-02 Konishiroku Photo Ind Co Ltd 金属磁性粉の処理方法
JPS619826A (ja) * 1984-06-25 1986-01-17 Konishiroku Photo Ind Co Ltd 磁気記録媒体
JPS6116016A (ja) * 1984-07-02 1986-01-24 Tdk Corp 磁気記録媒体
JPS6126932A (ja) * 1984-07-17 1986-02-06 Tdk Corp 磁気記録媒体
US5171784A (en) * 1984-08-02 1992-12-15 Union Carbide Chemicals & Plastics Technology Corporation Phosphorylated reaction products and compositions incorporating such products
CA1267987A (en) * 1984-08-02 1990-04-17 Union Carbide Corporation Phosphorylated reaction products and compositions incorporating such products
US4842942A (en) * 1984-08-15 1989-06-27 Toyo Boseki Kabushiki Kaisha Magnetic recording medium
US4600521A (en) * 1984-10-09 1986-07-15 Nippon Zeon Co., Ltd. Electron-beam reactive magnetic coating composition for magnetic recording media
JPS6190327A (ja) * 1984-10-09 1986-05-08 Sony Corp 磁気記録媒体
JPS61113125A (ja) * 1984-11-06 1986-05-31 Fuji Photo Film Co Ltd 磁気記録媒体
JPS61158023A (ja) * 1984-12-29 1986-07-17 Sony Corp 磁気記録媒体
DE3602257C2 (de) * 1985-01-28 1995-06-14 Hitachi Maxell Magnetisches Aufzeichnungsmedium
JPS61180927A (ja) * 1985-02-06 1986-08-13 Matsushita Electric Ind Co Ltd 磁気記録媒体
JPH0715738B2 (ja) * 1985-02-27 1995-02-22 花王株式会社 磁気記録媒体
EP0193084B1 (en) * 1985-03-01 1988-04-20 Sumitomo Bayer Urethane Co.Ltd: Magnetic recording medium, a process for preparing a magnetic recording medium and a binder composition therefor
US4798755A (en) * 1985-05-01 1989-01-17 Fuji Photo Film Co., Ltd. Magnetic recording medium
KR900002991B1 (en) * 1985-05-29 1990-05-04 Victor Company Of Japan Magnetic recording carrier
JPS626437A (ja) * 1985-07-01 1987-01-13 Tdk Corp 磁気記録媒体及び其の製造方法
JPS626429A (ja) * 1985-07-02 1987-01-13 Sony Corp 磁気記録媒体
JPH0719355B2 (ja) * 1985-07-30 1995-03-06 ソニー株式会社 磁気記録媒体
JPS6252718A (ja) * 1985-08-30 1987-03-07 Konishiroku Photo Ind Co Ltd 磁気記録媒体
US4707410A (en) * 1985-09-11 1987-11-17 Nippon Zeon Co., Ltd. Magnetic recording media
US4701372A (en) * 1985-09-18 1987-10-20 Toyo Boseki Kabushiki Kaisha Magnetic recording medium
CA1278399C (en) * 1985-10-15 1990-12-27 Charles Neale Merriam Vinyl chloride resins and compositions incorporating such resins
US4748084A (en) * 1985-11-11 1988-05-31 Nippon Zeon Co., Ltd. Magnetic recording medium
US4729922A (en) * 1985-11-11 1988-03-08 Fuji Photo Film Co., Ltd. Magnetic recording medium
US4731292A (en) * 1985-11-18 1988-03-15 Konishiroku Photo Industry Co., Ltd. Magnetic recording medium
US4743501A (en) * 1985-11-27 1988-05-10 Tdk Corporation Magnetic recording medium
JPS62143230A (ja) * 1985-12-17 1987-06-26 Konishiroku Photo Ind Co Ltd 磁気記録媒体の製造方法
JPS62195720A (ja) * 1986-02-21 1987-08-28 Toyobo Co Ltd 磁気記録媒体
US5034271A (en) * 1986-02-28 1991-07-23 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPH0752504B2 (ja) * 1986-04-18 1995-06-05 富士写真フイルム株式会社 磁気記録媒体
JPH0743818B2 (ja) * 1986-05-07 1995-05-15 松下電器産業株式会社 磁気記録媒体
US4868046A (en) * 1986-06-07 1989-09-19 Victor Company Of Japan, Ltd. Magnetic recording mediums comprising a modified vinyl chloride resin binder in at least a magnetic recording layer
US4732812A (en) * 1986-06-23 1988-03-22 Minnesota Mining And Manufacturing Company Magnetic recording medium
JPS6384879A (ja) * 1986-09-25 1988-04-15 Fuji Photo Film Co Ltd 研磨テ−プ
JPH0734253B2 (ja) * 1986-10-13 1995-04-12 富士写真フイルム株式会社 磁気記録媒体
US4970127A (en) * 1986-10-20 1990-11-13 Union Carbide Chemicals And Plastics Company Inc. Novel vinyl chloride resins and compositions incorporating such resins
JPH0748252B2 (ja) * 1986-12-22 1995-05-24 富士写真フイルム株式会社 磁気記録媒体
US5153063A (en) * 1987-04-22 1992-10-06 Fuji Photo Film Co., Ltd. Magnetic recording medium having a vinyl-chloride resin and a urethane resin binder system each of which resins contain three percent or less of a low molecular weight resin fraction
JPH01195720A (ja) * 1988-01-04 1989-08-07 Nec Corp 半導体集積回路
US5240780A (en) * 1988-02-08 1993-08-31 Minnesota Mining And Manufacturing Company Colored salts of polymeric sulfonate polyanions and dye cations, and light-absorbing coatings made therewith
US5185423A (en) * 1989-01-06 1993-02-09 Minnesota Mining And Manufacturing Company Method of making sulfonated hydroxy-functional polyurethane binder for magnetic recording media
US5071578A (en) * 1989-01-06 1991-12-10 Minnesota Mining And Manufacturing Company Sulfonated hydroxy-functional polyurethane binder for magnetic recording media
US5260136A (en) * 1989-01-06 1993-11-09 Minnesota Mining And Manufacturing Company Magnetic recording medium comprising a cured dispersion coating of sulfonated hydroxy-functional polyurethane binder and magnetizable pigment
JP2806578B2 (ja) * 1989-12-11 1998-09-30 日本ゼオン株式会社 磁気記録媒体
JP2929303B2 (ja) * 1989-12-28 1999-08-03 コニカ株式会社 ディスク状磁気記録媒体
DE59106529D1 (de) * 1990-11-01 1995-10-26 Basf Magnetics Gmbh Magnetischer Aufzeichnungsträger.
ES2124806T3 (es) * 1993-03-22 1999-02-16 Union Carbide Chem Plastic Medios de registro magneticos.
GB9320711D0 (en) * 1993-10-07 1993-11-24 Minnesota Mining & Mfg Binder for magnetic media
US5371166A (en) * 1993-12-22 1994-12-06 The B. F. Goodrich Company Polyurethane composition for use as a dispersing binder
US5759666A (en) * 1995-12-21 1998-06-02 Minnesota Mining And Manufacturing Company Carboxylic acid functional polyurethane polymers and blends thereof used in magnetic recording media
US5705253A (en) * 1994-06-13 1998-01-06 Minnesota Mining And Manufacturing Company Video recording tapes suitable for high speed contact duplication
US5501903A (en) * 1994-07-29 1996-03-26 Minnesota Mining And Manufacturing Company Magnetic recording medium having a binder system including a non halogenated vinyl polymer and a polyurethane polymer each with specified pendant groups
US6265060B1 (en) 1995-03-15 2001-07-24 Imation Corp. Magnetic recording medium incorporating fluorine-containing, solvent-soluble vinyl copolymer having no vinyl chloride or vinylidene chloride components
US5674604A (en) * 1995-03-31 1997-10-07 Minnesota Mining And Manufacturing Company Magnetic recording medium comprising magnetic particles, binder, and a non halogenated vinyl oligomer dispersant
US6037070A (en) * 1996-06-28 2000-03-14 Fuji Photo Film Co., Ltd. Magnetic recording medium and method for manufacturing binder for magnetic recording medium
US6139982A (en) * 1998-11-06 2000-10-31 Imation Corp. Magnetic recording medium having a binder system including a polyurethane polymer having both phosphonate and quaternary ammonium pendant groups

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS567403A (en) * 1979-06-30 1981-01-26 Toda Kogyo Corp Preparation of acicular crystalline magnetic iron oxide grain powder
JPS5792422A (en) * 1980-11-25 1982-06-09 Sony Corp Magnetic recording medium
JPS5792423A (en) * 1980-11-25 1982-06-09 Sony Corp Magnetic recording medium

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CA1003707A (en) * 1973-01-02 1977-01-18 Duane G. Heikkinen Fine-metal-particle-based magnetic recording medium of improved environmental stability
JPS54143117A (en) * 1978-04-27 1979-11-08 Toyo Boseki Magnetic recording medium
US4273807A (en) * 1979-03-19 1981-06-16 E. I. Du Pont De Nemours And Company Acicular α-iron particles and recording media employing same
DE2914659A1 (de) * 1979-04-11 1980-10-23 Agfa Gevaert Ag Magnetisches speichermedium und verfahren zu dessen herstellung
JPS5613519A (en) * 1979-07-12 1981-02-09 Tdk Corp Magnetic recording medium
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JPS5753824A (en) * 1980-09-12 1982-03-31 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5758227A (en) * 1980-09-25 1982-04-07 Tdk Corp Magnetic recording medium
JPS57130229A (en) * 1981-02-04 1982-08-12 Fuji Photo Film Co Ltd Manufacture of magnetic recording material
JPS57133521A (en) * 1981-02-10 1982-08-18 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57150129A (en) * 1981-03-12 1982-09-16 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57200938A (en) * 1981-06-05 1982-12-09 Tdk Corp Magnetic recording medium
DE3232008A1 (de) * 1981-09-03 1983-03-10 TDK Electronics Co., Ltd., Tokyo Magnetischer aufzeichnungstraeger
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JPS58130435A (ja) * 1982-01-29 1983-08-03 Fuji Photo Film Co Ltd 磁気記録媒体

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Publication number Priority date Publication date Assignee Title
JPS567403A (en) * 1979-06-30 1981-01-26 Toda Kogyo Corp Preparation of acicular crystalline magnetic iron oxide grain powder
JPS5792422A (en) * 1980-11-25 1982-06-09 Sony Corp Magnetic recording medium
JPS5792423A (en) * 1980-11-25 1982-06-09 Sony Corp Magnetic recording medium

Non-Patent Citations (1)

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Title
See also references of EP0112924A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0375660A2 (en) 1985-10-04 1990-06-27 Union Carbide Corporation Phosphorylated reaction products and compositions incorporating such products
EP0375659A2 (en) 1985-10-04 1990-06-27 Union Carbide Corporation Phosphorylated reaction products and compositions incorporating such products

Also Published As

Publication number Publication date
JPH0563843B2 (https=) 1993-09-13
DE3370711D1 (en) 1987-05-07
US4529661A (en) 1985-07-16
EP0112924A1 (en) 1984-07-11
EP0112924A4 (en) 1984-11-16
EP0112924B1 (en) 1987-04-01
JPS595423A (ja) 1984-01-12
EP0112924B2 (en) 1992-11-04

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