DE3538836C2 - - Google Patents
Info
- Publication number
- DE3538836C2 DE3538836C2 DE3538836A DE3538836A DE3538836C2 DE 3538836 C2 DE3538836 C2 DE 3538836C2 DE 3538836 A DE3538836 A DE 3538836A DE 3538836 A DE3538836 A DE 3538836A DE 3538836 C2 DE3538836 C2 DE 3538836C2
- Authority
- DE
- Germany
- Prior art keywords
- magnetic recording
- coating layer
- recording medium
- carbon atoms
- organic compound
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 30
- 125000004432 carbon atom Chemical group C* 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 150000002894 organic compounds Chemical class 0.000 claims description 18
- 239000011247 coating layer Substances 0.000 claims description 16
- 230000005294 ferromagnetic effect Effects 0.000 claims description 15
- 125000003709 fluoroalkyl group Chemical group 0.000 claims description 15
- 239000010408 film Substances 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000010409 thin film Substances 0.000 claims description 12
- 125000000217 alkyl group Chemical group 0.000 claims description 10
- 125000001931 aliphatic group Chemical group 0.000 claims description 9
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 9
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 9
- -1 hydroxy fatty acids Chemical class 0.000 claims description 8
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 7
- 239000000194 fatty acid Substances 0.000 claims description 7
- 229930195729 fatty acid Natural products 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 150000005846 sugar alcohols Polymers 0.000 claims description 4
- 125000004429 atom Chemical group 0.000 claims description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical class [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 2
- 150000003973 alkyl amines Chemical class 0.000 claims description 2
- 235000011044 succinic acid Nutrition 0.000 claims description 2
- COVQXPJCMCBBPX-UHFFFAOYSA-N sulfanylcarbamic acid Chemical class OC(=O)NS COVQXPJCMCBBPX-UHFFFAOYSA-N 0.000 claims description 2
- 150000003566 thiocarboxylic acids Chemical class 0.000 claims description 2
- 150000004670 unsaturated fatty acids Chemical class 0.000 claims description 2
- 235000021122 unsaturated fatty acids Nutrition 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 229920006267 polyester film Polymers 0.000 description 5
- 238000007740 vapor deposition Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229910020630 Co Ni Inorganic materials 0.000 description 3
- 229910002440 Co–Ni Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000002685 polymerization catalyst Substances 0.000 description 2
- 238000005019 vapor deposition process Methods 0.000 description 2
- CCRJEFKSXBBDNM-UHFFFAOYSA-N 2-methyl-3-oxo-3-sulfanylpropanoic acid Chemical compound OC(=O)C(C)C(O)=S CCRJEFKSXBBDNM-UHFFFAOYSA-N 0.000 description 1
- QPHPUQJVKQXISS-UHFFFAOYSA-N 4-oxo-4-sulfanylbutanoic acid Chemical compound OC(=O)CCC(S)=O QPHPUQJVKQXISS-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 description 1
- 235000018417 cysteine Nutrition 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- 239000010702 perfluoropolyether Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 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
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
- G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
- G11B5/7253—Fluorocarbon lubricant
-
- 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]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
-
- 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]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
- Y10T428/31544—Addition polymer is perhalogenated
Landscapes
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22941884A JPS61107529A (ja) | 1984-10-31 | 1984-10-31 | 磁気記録媒体 |
| JP22941684A JPS61107527A (ja) | 1984-10-31 | 1984-10-31 | 磁気記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3538836A1 DE3538836A1 (de) | 1986-04-30 |
| DE3538836C2 true DE3538836C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-08-04 |
Family
ID=26528782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853538836 Granted DE3538836A1 (de) | 1984-10-31 | 1985-10-31 | Magnetisches aufzeichnungsmaterial |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4647507A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
| DE (1) | DE3538836A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62117135A (ja) * | 1985-11-18 | 1987-05-28 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
| CA1297738C (en) * | 1986-01-09 | 1992-03-24 | Hirofumi Kondo | Magnetic recording medium |
| US4833031A (en) * | 1986-03-20 | 1989-05-23 | Matsushita Electric Industrial Co., Ltd. | Magnetic recording medium |
| JPH0777023B2 (ja) * | 1986-04-03 | 1995-08-16 | 富士写真フイルム株式会社 | 磁気記録媒体 |
| US4840843A (en) * | 1986-10-17 | 1989-06-20 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
| FR2620445B1 (fr) * | 1987-09-16 | 1990-07-20 | Centre Nat Rech Scient | Nouveaux derives fluores d'acides amines, utilisables en particulier comme agents tensioactifs ou cotensioactifs et preparations a usage biomedical comprenant ces derives |
| US5061562A (en) * | 1987-09-22 | 1991-10-29 | Fuji Photo Film Co., Ltd. | Method for preparing a magnetic recording medium and a magnetic disk using the same |
| DE68919439T2 (de) * | 1988-06-06 | 1995-06-01 | Fuji Photo Film Co Ltd | Magnetischer Aufzeichnungsträger. |
| JP2913684B2 (ja) * | 1989-08-28 | 1999-06-28 | ソニー株式会社 | 磁気記録媒体 |
| JPH03105719A (ja) * | 1989-09-20 | 1991-05-02 | Hitachi Ltd | 磁気記録媒体及びそれを用いた磁気記憶装置 |
| US5252400A (en) * | 1990-11-13 | 1993-10-12 | Matsushita Electric Industrial Co., Ltd. | Fluorine-containing compounds |
| US6303227B1 (en) | 1997-07-16 | 2001-10-16 | Matsushita Electric Industrial Co., Ltd. | Lubricant composition magnetic recording medium, and process for producing magnetic recording medium |
| EP0944044A3 (en) * | 1998-03-19 | 2001-09-19 | Sony Corporation | Magnetic recording medium and method of manufacturing magnetic recording medium |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5234924B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1974-10-02 | 1977-09-06 | ||
| US4096079A (en) * | 1976-09-10 | 1978-06-20 | Ball Brothers Research Corporation | Protective lubricating compositions for recordings |
| DE2839378B1 (de) * | 1978-09-11 | 1979-11-15 | Basf Ag | Magnetischer Aufzeichnungstraeger |
| US4268556A (en) * | 1979-01-08 | 1981-05-19 | Minnesota Mining And Manufacturing Company | Rigid magnetic recording disks lubricated with fluorinated telechelic polyether |
| JPS5625232A (en) * | 1979-08-06 | 1981-03-11 | Sony Corp | Magnetic recording medium |
| US4505990A (en) * | 1983-07-14 | 1985-03-19 | Hercules Incorporated | Coating compositions |
| US4529659A (en) * | 1983-11-05 | 1985-07-16 | Nippon Telegraph & Telephone Public Corporation | Magnetic recording member and process for manufacturing the same |
| JPS60109028A (ja) * | 1983-11-17 | 1985-06-14 | Hitachi Maxell Ltd | 磁気記録媒体 |
-
1985
- 1985-10-24 US US06/791,075 patent/US4647507A/en not_active Expired - Lifetime
- 1985-10-31 DE DE19853538836 patent/DE3538836A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3538836A1 (de) | 1986-04-30 |
| US4647507A (en) | 1987-03-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8320 | Willingness to grant licences declared (paragraph 23) | ||
| 8339 | Ceased/non-payment of the annual fee |