GB1197661A - Magnetic Recording Material. - Google Patents
Magnetic Recording Material.Info
- Publication number
- GB1197661A GB1197661A GB4782/68A GB478268A GB1197661A GB 1197661 A GB1197661 A GB 1197661A GB 4782/68 A GB4782/68 A GB 4782/68A GB 478268 A GB478268 A GB 478268A GB 1197661 A GB1197661 A GB 1197661A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- copolymer
- carbon
- layer
- size
- 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
Links
- 239000002245 particle Substances 0.000 abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 4
- 229910052799 carbon Inorganic materials 0.000 abstract 3
- 229920001577 copolymer Polymers 0.000 abstract 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 abstract 1
- 229920002284 Cellulose triacetate Polymers 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 abstract 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 abstract 1
- 239000006229 carbon black Substances 0.000 abstract 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000006249 magnetic particle Substances 0.000 abstract 1
- 239000010445 mica Substances 0.000 abstract 1
- 229910052618 mica group Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920000515 polycarbonate Polymers 0.000 abstract 1
- 239000004417 polycarbonate Substances 0.000 abstract 1
- -1 polyethylene terephthalate Polymers 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 1
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- 230000003746 surface roughness Effects 0.000 abstract 1
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
- G11B5/73—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
- G11B5/735—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 back layer
- G11B5/7356—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 back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2
- G11B5/7358—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 back layer comprising non-magnetic particles in the back layer, e.g. particles of TiO2, ZnO or SiO2 specially adapted for achieving a specific property, e.g. average roughness [Ra]
Landscapes
- Paints Or Removers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR92918A FR1531397A (fr) | 1967-01-30 | 1967-01-30 | Nouvelles bandes pour enregistrement magnétique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1197661A true GB1197661A (en) | 1970-07-08 |
Family
ID=8624525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4782/68A Expired GB1197661A (en) | 1967-01-30 | 1968-01-30 | Magnetic Recording Material. |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE709254A (enrdf_load_stackoverflow) |
| FR (1) | FR1531397A (enrdf_load_stackoverflow) |
| GB (1) | GB1197661A (enrdf_load_stackoverflow) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4975102A (enrdf_load_stackoverflow) * | 1972-11-20 | 1974-07-19 | ||
| JPS52107105U (enrdf_load_stackoverflow) * | 1977-01-20 | 1977-08-15 | ||
| US4534999A (en) * | 1983-07-15 | 1985-08-13 | Basf Aktiengesellschaft | Production of magnetic recording media having a backing coating |
| EP0171185A3 (en) * | 1984-07-09 | 1986-05-07 | Hitachi Maxell Ltd. | Magnetic recording medium |
| US4645723A (en) * | 1984-02-18 | 1987-02-24 | Basf Aktiengesellschaft | Production of magnetic recording media possessing a backing coating, and magnetic recording media thus produced |
| US5330784A (en) * | 1992-11-12 | 1994-07-19 | Basf Magnetics Gmbh | Process of producing a flexible magnetic recording media having a backing coating |
| US5346761A (en) * | 1992-05-21 | 1994-09-13 | Basf Magnetics Gmbh | Flexible magnetic recording media having a backing coating containing a polyurethane resin having a phosphate group and precipated silica |
| US5419959A (en) * | 1991-05-31 | 1995-05-30 | Basf Magnetics Gmbh | Magnetic recording medium having an infra-red light transparent balkcoat layer |
-
1967
- 1967-01-30 FR FR92918A patent/FR1531397A/fr not_active Expired
-
1968
- 1968-01-11 BE BE709254D patent/BE709254A/xx unknown
- 1968-01-30 GB GB4782/68A patent/GB1197661A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4975102A (enrdf_load_stackoverflow) * | 1972-11-20 | 1974-07-19 | ||
| JPS52107105U (enrdf_load_stackoverflow) * | 1977-01-20 | 1977-08-15 | ||
| US4534999A (en) * | 1983-07-15 | 1985-08-13 | Basf Aktiengesellschaft | Production of magnetic recording media having a backing coating |
| US4645723A (en) * | 1984-02-18 | 1987-02-24 | Basf Aktiengesellschaft | Production of magnetic recording media possessing a backing coating, and magnetic recording media thus produced |
| EP0171185A3 (en) * | 1984-07-09 | 1986-05-07 | Hitachi Maxell Ltd. | Magnetic recording medium |
| US5419959A (en) * | 1991-05-31 | 1995-05-30 | Basf Magnetics Gmbh | Magnetic recording medium having an infra-red light transparent balkcoat layer |
| US5346761A (en) * | 1992-05-21 | 1994-09-13 | Basf Magnetics Gmbh | Flexible magnetic recording media having a backing coating containing a polyurethane resin having a phosphate group and precipated silica |
| US5330784A (en) * | 1992-11-12 | 1994-07-19 | Basf Magnetics Gmbh | Process of producing a flexible magnetic recording media having a backing coating |
Also Published As
| Publication number | Publication date |
|---|---|
| BE709254A (enrdf_load_stackoverflow) | 1968-05-16 |
| FR1531397A (fr) | 1968-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |