DE69407415D1 - Magnetische aufzeichnungsmedien mit neuem vernetzungsmittel - Google Patents

Magnetische aufzeichnungsmedien mit neuem vernetzungsmittel

Info

Publication number
DE69407415D1
DE69407415D1 DE69407415T DE69407415T DE69407415D1 DE 69407415 D1 DE69407415 D1 DE 69407415D1 DE 69407415 T DE69407415 T DE 69407415T DE 69407415 T DE69407415 T DE 69407415T DE 69407415 D1 DE69407415 D1 DE 69407415D1
Authority
DE
Germany
Prior art keywords
magnetic recording
crosslinking agent
recording media
new crosslinking
new
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 - Fee Related
Application number
DE69407415T
Other languages
English (en)
Other versions
DE69407415T2 (de
Inventor
Norman Rustad
Bruce Bengston
Ramon Hegel
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.)
GlassBridge Enterprises Inc
Original Assignee
Imation 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
Application filed by Imation Corp filed Critical Imation Corp
Publication of DE69407415D1 publication Critical patent/DE69407415D1/de
Application granted granted Critical
Publication of DE69407415T2 publication Critical patent/DE69407415T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/7021—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 containing a polyurethane or a polyisocyanate
    • 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
    • G11B5/7021—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 containing a polyurethane or a polyisocyanate
    • G11B5/7022—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 containing a polyurethane or a polyisocyanate containing mixtures of polyurethanes or polyisocyanates with other polymers
    • 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
    • G11B5/7028—Additives, e.g. crosslinking agents
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing
DE69407415T 1993-06-30 1994-06-07 Magnetische aufzeichnungsmedien mit neuem vernetzungsmittel Expired - Fee Related DE69407415T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8518993A 1993-06-30 1993-06-30
PCT/US1994/006382 WO1995001636A1 (en) 1993-06-30 1994-06-07 Magnetic recording media incorporating new crosslinking agent

Publications (2)

Publication Number Publication Date
DE69407415D1 true DE69407415D1 (de) 1998-01-29
DE69407415T2 DE69407415T2 (de) 1998-05-14

Family

ID=22190030

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69407415T Expired - Fee Related DE69407415T2 (de) 1993-06-30 1994-06-07 Magnetische aufzeichnungsmedien mit neuem vernetzungsmittel

Country Status (5)

Country Link
US (2) US5686013A (de)
EP (1) EP0706704B1 (de)
JP (1) JPH08512075A (de)
DE (1) DE69407415T2 (de)
WO (1) WO1995001636A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5681904A (en) * 1996-04-01 1997-10-28 Minnesota Mining And Manufacturing Company Azido polymers having improved burn rate
US6180200B1 (en) 1998-06-01 2001-01-30 Dsm N. V. Cationic and hybrid radiation curable pressure sensitive adhesives for bonding of optical discs
US7314647B1 (en) 2003-03-20 2008-01-01 Imation Corp. Heat curing and subsequent calendering to produce magnetic recording media
US20050129983A1 (en) * 2003-12-15 2005-06-16 Imation Corp. Magnetic recording medium having a backside coating dispersion
US20070037019A1 (en) * 2005-08-09 2007-02-15 Imation Corp. Purified polyurethane crosslinking agents and magnetic recording media having at least one coating containing a purified polyisocyanate crosslinking agent

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910244B1 (de) * 1970-12-15 1974-03-09
JPS5843817B2 (ja) * 1976-02-24 1983-09-29 富士写真フイルム株式会社 磁気記録体
US4474843A (en) * 1980-08-18 1984-10-02 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPS57111311A (en) * 1980-12-29 1982-07-10 Nippon Polyurethan Kogyo Kk Thermoplastic polyurethane resin
JPS57113420A (en) * 1980-12-29 1982-07-14 Sony Corp Magnetic recording medium
JPS6010417A (ja) * 1983-06-30 1985-01-19 Konishiroku Photo Ind Co Ltd 磁気記録媒体
JPS6038725A (ja) * 1983-08-09 1985-02-28 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6059528A (ja) * 1983-09-12 1985-04-05 Tdk Corp 磁気記録媒体
JPS60107729A (ja) * 1983-11-16 1985-06-13 Fuji Photo Film Co Ltd 磁気記録媒体
US4525424A (en) * 1983-12-30 1985-06-25 International Business Machines Corporation Flexible magnetic recording media having a polyester-polyurethane binder and chromium dioxide pigment
JPS60152535A (ja) * 1984-01-20 1985-08-10 Ichiro Shibauchi 架橋剤及びその製造方法
JPS6174138A (ja) * 1984-09-20 1986-04-16 Fuji Photo Film Co Ltd 磁気記録媒体
JPS61122921A (ja) * 1984-11-19 1986-06-10 Fuji Photo Film Co Ltd 磁気記録媒体
US4621113A (en) * 1985-10-07 1986-11-04 The Dow Chemical Company Repeating block, oligomer-free, polyphase, thermoformable polyurethanes and method of preparation thereof
US4732812A (en) * 1986-06-23 1988-03-22 Minnesota Mining And Manufacturing Company Magnetic recording medium
US4888212A (en) * 1986-10-14 1989-12-19 Fuji Photo Film Co., Ltd. Process for the preparation of magnetic recording medium
JPH0644345B2 (ja) * 1987-04-30 1994-06-08 富士写真フイルム株式会社 磁気記録媒体の製造方法
JPH01173420A (ja) * 1987-12-28 1989-07-10 Konica Corp 非磁性粉を含有するバックコート層を設けた磁気記録媒体
JPH02134720A (ja) * 1988-11-14 1990-05-23 Konica Corp 非磁性粉を含有するバックコート層を設けた磁気記録媒体
US4966797A (en) * 1988-12-26 1990-10-30 Hitachi Ltd. Process for producing magnetic recording medium, magnetic paint, and magnetic disk
US5159053A (en) * 1989-08-28 1992-10-27 The B. F. Goodrich Company Polyurethane for use in electrostatic dissipating applications
JPH0393032A (ja) * 1989-09-04 1991-04-18 Kao Corp 磁気記録媒体
US5576558A (en) * 1992-05-21 1996-11-19 The Yokohama Rubber Co., Ltd. Primer composition containing polyisocyanate and phosphate for bonding to a hard-to-bond material
US5371166A (en) * 1993-12-22 1994-12-06 The B. F. Goodrich Company Polyurethane composition for use as a dispersing binder

Also Published As

Publication number Publication date
US5595824A (en) 1997-01-21
DE69407415T2 (de) 1998-05-14
EP0706704B1 (de) 1997-12-17
US5686013A (en) 1997-11-11
EP0706704A1 (de) 1996-04-17
JPH08512075A (ja) 1996-12-17
WO1995001636A1 (en) 1995-01-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee