FLUORINE-CONTAINING COMPOUND AND MAGNETIC RECORDING MEDIUM USING THE SAME

PROBLEM TO BE SOLVED: To provide a fluorine-containing compound which is highly lubricative and has a surface improvement capability even in an adsorbed state, by introducing polysiloxane oligomer having a short relaxation time into a perfluoro oxyalkyl group or a molecular terminal thereof. SOLUTIO...

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Bibliographische Detailangaben
Hauptverfasser:	SASAKI HIROSHI, SHOJI SABURO, HAMADA TOMOYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PHYSICS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a fluorine-containing compound which is highly lubricative and has a surface improvement capability even in an adsorbed state, by introducing polysiloxane oligomer having a short relaxation time into a perfluoro oxyalkyl group or a molecular terminal thereof. SOLUTION: This linear fluorine-containing compound is formed by introducing polysiloxane oligomer having a short relaxation time into a perfluoro oxyalkyl group or a molecular terminal of a perfluoro oxyalkyl group. Thus, the relaxation time of a correlation function of inter-terminal vector time in a state that the compound is adsorbed on a graphite substrate at a temperature of 300K becomes not longer than 350 picoseconds. The linear fluorine-containing compound is expressed by a formula 1 (where n is 2 to 5, m is 1 to 2, and Rf represents a perfluoro oxyalkyl group or a perfluoro oxyalkylene group having a molecular weight not less than 800), and a formula 2. Thus, a fluorine- containing compound which is highly lubricative and has a surface improvement capability in an adsorbed state, and a magnetic recording medium using this compound may be provided.