FLUOROPOLYETHER COMPOUND, LUBRICANT, MAGNETIC DISK, AND METHOD FOR PRODUCING SAME

Title:

FLUOROPOLYETHER COMPOUND, LUBRICANT, MAGNETIC DISK, AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2016/084781

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a fluoropolyether compound which has exceptional heat resistance and with which it is possible to maintain the lubricity of a magnetic disk surface without evaporating at high temperatures caused by laser heating, a lubricant, a magnetic disk, and a method for producing the same. The present invention pertains to: a fluoropolyether compound in which a C4-10 aliphatic hydrocarbon chain present in the center of the molecule is ether-bonded to each of two or more perfluoropolyethers, wherein the aliphatic hydrocarbon chain has one or more hydroxyl groups, and the two or more perfluoropolyethers each have at least one polar group selected from the group consisting of -OH, -OCH2CH(OH)CH2OH, -OCH2CH(OH)CH2OCH2CH(OH)CH2OH, -O(CH2)mOH, and -OCH2(OH)CHCH2-OC6H4-R1 (where m is an integer of 2-8, and R1 is hydrogen, a C1-4 alkoxy group, an amino group, or an amide residue) at the terminal that is not on the hydrocarbon-chain side; a lubricant and a magnetic disk that contain this compound; and a method for producing a magnetic disk.

Inventors:

SAGATA RYOSUKE (JP)
SHIMIZU TSUYOSHI (JP)
KASAI HARUO (JP)

Application Number:

PCT/JP2015/082882

Publication Date:

June 02, 2016

Filing Date:

November 24, 2015

Export Citation:

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Assignee:

MORESCO CORP (JP)

International Classes:

C07C43/13; C08G65/331; C10M105/54; C10M105/66; C10M105/68; C10M107/38; C10M107/40; G11B5/725; G11B5/84; C10N30/06; C10N30/08; C10N40/18; C10N50/02

Domestic Patent References:

WO2015022871A1

2015-02-19

Foreign References:

JP2006070173A	2006-03-16
JP2009211765A	2009-09-17
JP2014509677A	2014-04-21

Other References: