Title:
LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND METHOD FOR PRODUCING MAGNETIC RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2018/159378
Kind Code:
A1
Abstract:
Provided is a lubricant for a magnetic recording medium, the lubricant being able to form a lubricating layer having excellent adhesion to a protective layer. The lubricant for a magnetic recording medium contains a fluorinated ether compound in which a group having an ethylenic carbon-carbon double bond is disposed at one or both terminals of a perfluoroalkyl polyether chain. It is preferable for the group having an ethylenic carbon-carbon double bond to be disposed at one terminal of the perfluoroalkyl polyether chain and for a hydroxyl group to be disposed at the other terminal. It is preferable for the lubricant to contain a compound which has one or a plurality of one or more types of functional group selected from among hydroxyl groups, amino groups, amido groups and carboxyl groups at one or both terminals of a perfluoroalkyl polyether chain.
Inventors:
TOMITA HIROYUKI (JP)
HATTORI HIROKO (JP)
FUKUMOTO NAOYA (JP)
MIYASAKA RYUUTA (JP)
ITO NAOKO (JP)
OTA ICHIRO (JP)
MUROFUSHI KATSUMI (JP)
HATTORI HIROKO (JP)
FUKUMOTO NAOYA (JP)
MIYASAKA RYUUTA (JP)
ITO NAOKO (JP)
OTA ICHIRO (JP)
MUROFUSHI KATSUMI (JP)
Application Number:
PCT/JP2018/005913
Publication Date:
September 07, 2018
Filing Date:
February 20, 2018
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
International Classes:
G11B5/725; C08G65/00; C08G65/329; C08G65/332; C08G65/333; C10M107/38; C10M177/00; G11B5/84; C10N30/00; C10N40/18; C10N70/00
Foreign References:
JP2003055310A | 2003-02-26 | |||
JP2001131372A | 2001-05-15 | |||
JP2004300369A | 2004-10-28 | |||
JP2003335967A | 2003-11-28 | |||
JP2009513348A | 2009-04-02 |
Attorney, Agent or Firm:
OIKAWA Shu et al. (JP)
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