ITRM920471A0 - Derivati di perfluoropolieteri, lubrificanti che li contengono e materiale e registrazione magnetica che li impiega. - Google Patents
Derivati di perfluoropolieteri, lubrificanti che li contengono e materiale e registrazione magnetica che li impiega.Info
- Publication number
- ITRM920471A0 ITRM920471A0 IT92RM471A ITRM920471A ITRM920471A0 IT RM920471 A0 ITRM920471 A0 IT RM920471A0 IT 92RM471 A IT92RM471 A IT 92RM471A IT RM920471 A ITRM920471 A IT RM920471A IT RM920471 A0 ITRM920471 A0 IT RM920471A0
- Authority
- IT
- Italy
- Prior art keywords
- perfluoropolyethers
- lubricants
- derivatives
- contain
- magnetic recording
- Prior art date
Links
- 239000000314 lubricant Substances 0.000 title 1
- 239000000463 material Substances 0.000 title 1
- 239000010702 perfluoropolyether Substances 0.000 title 1
Classifications
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- 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
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- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/333—Polymers modified by chemical after-treatment with organic compounds containing nitrogen
- C08G65/33303—Polymers modified by chemical after-treatment with organic compounds containing nitrogen containing amino group
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/56—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing nitrogen
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/38—Lubricating compositions characterised by the base-material being a macromolecular compound containing halogen
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- 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
- G11B5/71—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 lubricant
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- 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
- G11B5/7257—Perfluoropolyether lubricant
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- C—CHEMISTRY; METALLURGY
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- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/04—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen, halogen, and oxygen
- C10M2211/044—Acids; Salts or esters thereof
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- C10M2215/066—Arylene diamines
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Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Lubricants (AREA)
- Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyethers (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14863791 | 1991-06-20 | ||
JP16664091 | 1991-07-08 | ||
JP19805391 | 1991-08-07 | ||
JP35633091A JP3240654B2 (ja) | 1991-06-20 | 1991-12-24 | パーフルオロポリエーテル誘導体及びこれを用いた潤滑剤並びに磁気記録媒体 |
Publications (3)
Publication Number | Publication Date |
---|---|
ITRM920471A0 true ITRM920471A0 (it) | 1992-06-19 |
ITRM920471A1 ITRM920471A1 (it) | 1993-12-19 |
IT1254397B IT1254397B (it) | 1995-09-14 |
Family
ID=27472879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITRM920471A IT1254397B (it) | 1991-06-20 | 1992-06-19 | Derivati di perfluoropolieteri, lubrificanti che li contengono e materiale per registrazione magnetica che li impiega |
Country Status (5)
Country | Link |
---|---|
US (2) | US5453539A (it) |
EP (1) | EP0519406B1 (it) |
JP (1) | JP3240654B2 (it) |
DE (1) | DE69231529T2 (it) |
IT (1) | IT1254397B (it) |
Families Citing this family (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3240654B2 (ja) * | 1991-06-20 | 2001-12-17 | ソニー株式会社 | パーフルオロポリエーテル誘導体及びこれを用いた潤滑剤並びに磁気記録媒体 |
JPH05143975A (ja) * | 1991-09-24 | 1993-06-11 | Sony Corp | 磁気記録媒体 |
JPH07102271A (ja) * | 1993-10-01 | 1995-04-18 | Sony Corp | 潤滑剤及び磁気記録媒体 |
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-
1991
- 1991-12-24 JP JP35633091A patent/JP3240654B2/ja not_active Expired - Fee Related
-
1992
- 1992-06-16 EP EP92110161A patent/EP0519406B1/en not_active Expired - Lifetime
- 1992-06-16 DE DE69231529T patent/DE69231529T2/de not_active Expired - Fee Related
- 1992-06-19 IT ITRM920471A patent/IT1254397B/it active
- 1992-06-19 US US07/901,183 patent/US5453539A/en not_active Expired - Lifetime
-
1995
- 1995-05-03 US US08/434,026 patent/US5536425A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
IT1254397B (it) | 1995-09-14 |
EP0519406A2 (en) | 1992-12-23 |
DE69231529T2 (de) | 2001-05-17 |
JPH0593059A (ja) | 1993-04-16 |
ITRM920471A1 (it) | 1993-12-19 |
EP0519406B1 (en) | 2000-10-25 |
US5453539A (en) | 1995-09-26 |
EP0519406A3 (en) | 1993-04-28 |
JP3240654B2 (ja) | 2001-12-17 |
DE69231529D1 (de) | 2000-11-30 |
US5536425A (en) | 1996-07-16 |
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