Login| Sign Up| Help| Contact|

Patent Searching and Data


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)
Application Number:
PCT/JP2018/005913
Publication Date:
September 07, 2018
Filing Date:
February 20, 2018
Export Citation:
Click for automatic bibliography generation   Help
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:
JP2003055310A2003-02-26
JP2001131372A2001-05-15
JP2004300369A2004-10-28
JP2003335967A2003-11-28
JP2009513348A2009-04-02
Attorney, Agent or Firm:
OIKAWA Shu et al. (JP)
Download PDF: