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Class 428/843.5 - Fluorine compound


Subclass of Class 428 - Stock material or miscellaneous articles
Definition: Subject matter in which the lubricant is a fluorine compound.
No. of patents: 16
Last issue date: 01/29/2008


NumberTitleIssue Date
7323260Lubricant, recording medium and carboxylic acid compound
The present invention provides a lubricant capable of holding an excellent lubricating property under various types of service conditions, maintaining a lubricating effect for a long period of time and providing excellent traveling property, abrasion resistance, dur...
01/29/2008
6663971Branched perfluoro polyethylene glycol (PF-PEG) high performance thin film disk lubricants
A non-linear perluoro polyalkylene or perfluoro polyarylene glycol of specific molecular conformation such as plate-like, spherical, or helical and having the formula CFx --[--(--RO--)n --CF3 ]4-x, wherein R is ...
12/16/2003
6617011Elastomeric lubricants for magnetic recording media
Elastomeric fluoropolyether lubricant topcoats are formed on a protective overcoat of a magnetic recording medium. Embodiments include forming a an amorphous carbon layer having a thickness of no greater than about 25 Å as the protective overcoat and pol...
09/09/2003
5230964Magnetic recording media a comprising magnetic particles binder and (fluorinated phenoxy)(3-perfluoroalkylphenoxy)-cyclic phosphazene lubricant
A magnetic recording media containing a lubricant which is a cyclic phosphazene completely substituted with fluorinated phenoxy substituents and m-perfluoroalkylphenoxy substituents, in ratios ranging from 1:1 to 1:5 is disclosed. The recording media and ...
07/27/1993
5091249Magnetic recording medium lubricant comprising two different fluorinated polyethers each having specified terminal groups
A magnetic recording medium comprising a non-magnetic support having a magnetic layer thereon, wherein the surface of the magnetic layer contains (a) a first fluorinated polyether having an oxo acid group or an oxo acid salt group at one or both terminals...
02/25/1992
4828924Magnetic recording medium
A magnetic recording medium of high durability comprising a substrate material and a magnetic layer provided on at least one surface of the substrate material, the magnetic layer comprising magnetic powder and a resinous binder, characterized in that the ...
05/09/1989
4822637Fabrication of magnetic recording medium with lubricant
Fabrication of magnetic recording media having a coating containing harsh pigment like CrO2 particles and adapted for frequent contact with a head, with good durability, abrasivity, etc., accommodated by using a lubricant system including a flu...
04/18/1989
4721795Fluoropolyethers containing end groups endowed with anchoring capacity
Compounds suitable for being used as lubricants, having general formula: (I) RO--(C3 F6 O)m --(CFXO)n --CFX--L, or (II) R"CFXO--(C3 F6 O)x (CFXO)y --(C2 F4 ...
01/26/1988
4659627Magnetic recording medium with lubricant
Magnetic recording media having a coating containing harsh pigment like CrO2 particles and adapted for frequent contact with a head, with good durability, abrasivity, etc., accommodated by using a lubricant system including a fluoro-silicone oi...
04/21/1987
4642246Process for chemically bonding a lubricant to a magnetic disk
A process for chemically bonding a lubricant to a magnetic disk by applying a functionalized polymeric lubricant to the disk, heating it until a significant portion bonds to the disk via the functional terminal group, and then reacting the unbonded residu...
02/10/1987
4621016Magnetic recording media
By inclusion of a fluorinated graphite material in conjunction with carbon black in the magnetic layer of a magnetic recording medium, the medium is improved significantly in its surface properties and electromagnetic performance properties as well as mag...
11/04/1986
4613548Polyphosphazene magnetic tape lube
A magnetic recording media containing a normally liquid polyphosphazene lubricant, e.g. low molecular weight linear or cyclic poly-fluoroalkoxy phosphazene mixtures....
09/23/1986
4431702Magnetic recording medium
A magnetic recording medium having a magnetic layer comprising a magnetic powder and a resin binder, which is characterized by that the magnetic layer contains an ethylene trifluoride chloride polymer of a low degree of polymerization and a fatty acid est...
02/14/1984
4327139Rigid magnetic recording disk having perfluoropolyether lubricant
A magnetic recording medium comprising a non-magnetic base and a magnetizable layer which is applied to at least one side thereof and comprises magnetic particles finely dispersed in a polymeric binder and additives, the surface of the magnetizable layer ...
04/27/1982
4267238Flexible magnetic recording media lubricated with fluorinated telechelic polyether polymer
Flexible magnetic recording tape is lubricated by a thin coating of a fluorinated telechelic polyether polymer having at least one polar group such as --CONHCH2 CH2 OH, --COOCH3, --CH2 OH, and --COCF3.
05/12/1981
4034133Magnetic recording medium with lubricant
A magnetic recording element of the type including a base and a coating upon a surface of the base, the coating comprising magnetic particles dispersed in a polymeric binder and a lubricant, the improvement comprising a lubricant chosen from the group con...
07/05/1977
 
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