CA2132710A1 - Flexible magnetic recording medium containing polybenzazole polymers - Google Patents
Flexible magnetic recording medium containing polybenzazole polymersInfo
- Publication number
- CA2132710A1 CA2132710A1 CA002132710A CA2132710A CA2132710A1 CA 2132710 A1 CA2132710 A1 CA 2132710A1 CA 002132710 A CA002132710 A CA 002132710A CA 2132710 A CA2132710 A CA 2132710A CA 2132710 A1 CA2132710 A1 CA 2132710A1
- Authority
- CA
- Canada
- Prior art keywords
- substrate
- film
- recording medium
- polymer
- magnetizable
- 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.)
- Abandoned
Links
- 229920000642 polymer Polymers 0.000 title claims description 39
- 239000000758 substrate Substances 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 24
- 229920006254 polymer film Polymers 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 16
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 2
- 239000010408 film Substances 0.000 description 32
- 239000010410 layer Substances 0.000 description 21
- 125000003118 aryl group Chemical group 0.000 description 8
- 239000000178 monomer Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical group C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- -1 poly(ethylene terephthalate) Polymers 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229920002577 polybenzoxazole Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000137 polyphosphoric acid Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 description 1
- RLXBOUUYEFOFSW-UHFFFAOYSA-N 2,5-diaminobenzene-1,4-diol Chemical compound NC1=CC(O)=C(N)C=C1O RLXBOUUYEFOFSW-UHFFFAOYSA-N 0.000 description 1
- NFPYJDZQOKCYIE-UHFFFAOYSA-N 4-amino-3-hydroxybenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1O NFPYJDZQOKCYIE-UHFFFAOYSA-N 0.000 description 1
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 108700040458 Drosophila Strn-Mlck Proteins 0.000 description 1
- ZCQWOFVYLHDMMC-UHFFFAOYSA-N Oxazole Chemical compound C1=COC=N1 ZCQWOFVYLHDMMC-UHFFFAOYSA-N 0.000 description 1
- 241000350481 Pterogyne nitens Species 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229960004050 aminobenzoic acid Drugs 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 125000002529 biphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C12)* 0.000 description 1
- 125000002837 carbocyclic group Chemical group 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 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
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920005570 flexible polymer Polymers 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011104 metalized film Substances 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 125000005551 pyridylene group Chemical group 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 125000005628 tolylene group Chemical group 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 238000005406 washing 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
- G11B5/73—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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/22—Polybenzoxazoles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/32—Polythiazoles; Polythiadiazoles
-
- 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
- G11B5/739—Magnetic recording media substrates
- G11B5/73923—Organic polymer substrates
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Magnetic Record Carriers (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85704392A | 1992-03-24 | 1992-03-24 | |
| US07/857,043 | 1992-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2132710A1 true CA2132710A1 (en) | 1993-09-30 |
Family
ID=25325052
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002132710A Abandoned CA2132710A1 (en) | 1992-03-24 | 1993-03-11 | Flexible magnetic recording medium containing polybenzazole polymers |
| CA002132545A Abandoned CA2132545A1 (en) | 1992-03-24 | 1993-03-11 | Flexible magnetic recording medium containing polybenzazole polymers |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002132545A Abandoned CA2132545A1 (en) | 1992-03-24 | 1993-03-11 | Flexible magnetic recording medium containing polybenzazole polymers |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0632921A1 (enrdf_load_stackoverflow) |
| JP (1) | JPH07504291A (enrdf_load_stackoverflow) |
| KR (2) | KR950701116A (enrdf_load_stackoverflow) |
| CA (2) | CA2132710A1 (enrdf_load_stackoverflow) |
| TW (2) | TW216460B (enrdf_load_stackoverflow) |
| WO (2) | WO1993019461A1 (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3669457B2 (ja) * | 1996-03-19 | 2005-07-06 | 富士通株式会社 | 磁気記録媒体及びその製造方法 |
| CN1239570A (zh) * | 1997-07-17 | 1999-12-22 | 索尼公司 | 磁记录介质和使用该介质的磁记录/再现装置 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3449296A (en) * | 1967-05-29 | 1969-06-10 | Du Pont | Polybenzoxazole film |
| JPS58122622A (ja) * | 1982-01-18 | 1983-07-21 | Hitachi Ltd | 磁気記録媒体に有機保護膜を形成する方法 |
| US5124432A (en) * | 1989-08-31 | 1992-06-23 | The Dow Chemical Company | Branched polybenzazole polymer and method of preparation |
-
1992
- 1992-07-09 TW TW081105450A patent/TW216460B/zh active
- 1992-07-09 TW TW081105449A patent/TW240311B/zh active
-
1993
- 1993-03-11 JP JP5516615A patent/JPH07504291A/ja active Pending
- 1993-03-11 WO PCT/US1993/002206 patent/WO1993019461A1/en not_active Application Discontinuation
- 1993-03-11 WO PCT/US1993/002207 patent/WO1993019462A1/en active Application Filing
- 1993-03-11 CA CA002132710A patent/CA2132710A1/en not_active Abandoned
- 1993-03-11 EP EP93907411A patent/EP0632921A1/en not_active Withdrawn
- 1993-03-11 CA CA002132545A patent/CA2132545A1/en not_active Abandoned
-
1994
- 1994-09-24 KR KR1019940703310A patent/KR950701116A/ko not_active Withdrawn
- 1994-09-24 KR KR1019940703309A patent/KR950701115A/ko not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CA2132545A1 (en) | 1993-09-30 |
| KR950701116A (ko) | 1995-02-20 |
| EP0632921A1 (en) | 1995-01-11 |
| WO1993019461A1 (en) | 1993-09-30 |
| TW240311B (enrdf_load_stackoverflow) | 1995-02-11 |
| TW216460B (enrdf_load_stackoverflow) | 1993-11-21 |
| WO1993019462A1 (en) | 1993-09-30 |
| KR950701115A (ko) | 1995-02-20 |
| JPH07504291A (ja) | 1995-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |