IE812187L - Magnetic medium - Google Patents
Magnetic mediumInfo
- Publication number
- IE812187L IE812187L IE218781A IE218781A IE812187L IE 812187 L IE812187 L IE 812187L IE 218781 A IE218781 A IE 218781A IE 218781 A IE218781 A IE 218781A IE 812187 L IE812187 L IE 812187L
- Authority
- IE
- Ireland
- Prior art keywords
- radiation
- magnetic
- cured mixture
- magnetic medium
- gb2084589a
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
- C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
- C08F299/022—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polycondensates with side or terminal unsaturations
-
- 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
- G11B5/7023—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 polyesters, polyethers, silicones, polyvinyl resins, polyacrylresins or epoxy resins
-
- 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
- G11B5/7026—Radiation curable polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Polymerisation Methods In General (AREA)
Abstract
A magnetic media having improved mechanical and magnetic properties comprising a nonmagnetic substrate coated with a magnetic binder composition composed of (a) a radiation-cured mixture of a high molecular weight thermoplastic polymer, such as a linear polyurethane of MW greater than 50,000, and a radiation-curable polyfunctional acrylate prepolymer and (b) magnetic particles dispersed in the radiation-cured mixture.
[GB2084589A]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18997980A | 1980-09-22 | 1980-09-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
IE812187L true IE812187L (en) | 1982-03-22 |
IE51908B1 IE51908B1 (en) | 1987-04-29 |
Family
ID=22699560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE218781A IE51908B1 (en) | 1980-09-22 | 1981-09-18 | Radiation-cured magnetic media and process for making same |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0060300A1 (en) |
JP (1) | JPS5786131A (en) |
AU (1) | AU546317B2 (en) |
BR (1) | BR8106017A (en) |
CA (1) | CA1167408A (en) |
DE (1) | DE3137691C2 (en) |
FR (1) | FR2491246A1 (en) |
GB (1) | GB2084589B (en) |
IE (1) | IE51908B1 (en) |
MX (1) | MX158193A (en) |
WO (1) | WO1982001099A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4408020A (en) * | 1982-06-28 | 1983-10-04 | The B. F. Goodrich Company | Curable polyurethanes |
JPS5979431A (en) * | 1982-10-29 | 1984-05-08 | Konishiroku Photo Ind Co Ltd | Magnetic recording medium |
EP0123081A3 (en) * | 1983-03-09 | 1986-11-26 | DeSOTO, INC. | Coatings for magnetic recording structures and production thereof |
US4507458A (en) * | 1983-04-14 | 1985-03-26 | Takeda Chemical Industries, Ltd. | Urethane acrylate compositions |
JPS6057531A (en) * | 1983-09-07 | 1985-04-03 | Kao Corp | Magnetic recording medium |
DE3332564A1 (en) * | 1983-09-09 | 1985-03-28 | Basf Ag, 6700 Ludwigshafen | MAGNETIC RECORDING CARRIERS |
DE3418482A1 (en) * | 1984-05-18 | 1985-11-21 | Basf Ag, 6700 Ludwigshafen | MAGNETIC RECORDING CARRIERS |
US4543268A (en) * | 1984-07-05 | 1985-09-24 | Minnesota Mining And Manufacturing Company | Electron-beam adhesion-promoting treatment of polyester film base for magnetic recording media |
US4594262A (en) * | 1984-07-05 | 1986-06-10 | Minnesota Mining And Manufacturing Company | Electron beam adhesion-promoting treatment of polyester film base |
JPH0610856B2 (en) * | 1984-08-04 | 1994-02-09 | ティーディーケイ株式会社 | Magnetic recording medium |
US5281482A (en) * | 1988-04-22 | 1994-01-25 | Minnesota Mining And Manufacturing Company | Magnetic recording medium comprising magnetic particles and an electron beam curable polyurethane binder having segments derived from a specified unsaturated diol |
US5028683A (en) * | 1988-04-22 | 1991-07-02 | Minnesota Mining And Manufacturing Company | Electron-beam curable polyurethane compositions; and method |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB829512A (en) * | 1957-01-31 | 1960-03-02 | Dow Chemical Co | Method for cross-linking vinyl chloride polymers |
US3104983A (en) * | 1959-08-26 | 1963-09-24 | Ibm | Method of curing magnetic tape binder comprising butadiene-acrylonitrile and phenolicresin with subatomic radiation |
DE1240934B (en) * | 1965-09-15 | 1967-05-24 | Basf Ag | Binder for ferromagnetic powder in the manufacture of magnetogram carriers |
DE2100037C3 (en) * | 1971-01-02 | 1980-06-19 | Hartmann, Job-Werner, Dr., 6700 Ludwigshafen | Process for the production of magnetic recording media |
GB1431854A (en) * | 1972-04-07 | 1976-04-14 | Sony Corp | Magnetic recording media and methods of making them |
US4072592A (en) * | 1974-05-20 | 1978-02-07 | Mobil Oil Corporation | Radiation curable coating |
JPS5845474B2 (en) * | 1974-05-20 | 1983-10-11 | モビル オイル コ−ポレ−シヨン | radiation curable paint |
JPS5921909B2 (en) * | 1974-10-31 | 1984-05-23 | 東レ株式会社 | Radiation curable coating composition |
US4152485A (en) * | 1977-08-05 | 1979-05-01 | Toyo Boseki Kabushiki Kaisha | Magnetic recording medium |
FR2425094B1 (en) * | 1978-05-01 | 1985-07-19 | Minnesota Mining & Mfg | PHOTOPOLYMERIZABLE COMPOSITIONS |
FR2456963A1 (en) * | 1979-05-18 | 1980-12-12 | Eastman Kodak Co | PHOTOGRAPHIC PRODUCT HAVING A MAGNETIC RECORDING TRACK AND METHOD FOR THE PRODUCTION THEREOF |
US4273633A (en) * | 1979-06-11 | 1981-06-16 | Union Carbide Corporation | Radiation curable dispersions containing high molecular weight essentially nonpolymerizable vinyl resins |
FR2463477B1 (en) * | 1979-08-06 | 1988-04-08 | Sony Corp | MAGNETIC RECORDING ELEMENT |
FR2463478B1 (en) * | 1979-08-06 | 1986-07-18 | Sony Corp | MAGNETIC RECORDING ELEMENT |
JPS5625230A (en) * | 1979-08-06 | 1981-03-11 | Sony Corp | Magnetic recording medium |
-
1981
- 1981-09-16 CA CA000385988A patent/CA1167408A/en not_active Expired
- 1981-09-17 GB GB8128186A patent/GB2084589B/en not_active Expired
- 1981-09-18 IE IE218781A patent/IE51908B1/en unknown
- 1981-09-21 FR FR8117755A patent/FR2491246A1/en active Granted
- 1981-09-21 JP JP14929181A patent/JPS5786131A/en active Pending
- 1981-09-21 BR BR8106017A patent/BR8106017A/en unknown
- 1981-09-22 DE DE19813137691 patent/DE3137691C2/en not_active Expired
- 1981-09-22 MX MX18925381A patent/MX158193A/en unknown
- 1981-09-22 WO PCT/US1981/001276 patent/WO1982001099A1/en unknown
- 1981-09-22 EP EP19810902865 patent/EP0060300A1/en not_active Withdrawn
- 1981-09-22 AU AU75546/81A patent/AU546317B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
MX158193A (en) | 1989-01-16 |
AU7554681A (en) | 1982-04-01 |
DE3137691C2 (en) | 1984-05-17 |
CA1167408A (en) | 1984-05-15 |
GB2084589B (en) | 1984-08-22 |
JPS5786131A (en) | 1982-05-29 |
EP0060300A1 (en) | 1982-09-22 |
AU546317B2 (en) | 1985-08-29 |
FR2491246A1 (en) | 1982-04-02 |
IE51908B1 (en) | 1987-04-29 |
WO1982001099A1 (en) | 1982-04-01 |
FR2491246B1 (en) | 1984-12-28 |
DE3137691A1 (en) | 1982-05-27 |
BR8106017A (en) | 1982-06-08 |
GB2084589A (en) | 1982-04-15 |
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