Title:
FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/024781
Kind Code:
A1
Abstract:
This fluorine-containing ether compound is represented by the following formula. R1-CH2-R2[-CH2-R3-CH2-R2]x-CH2-R4 (x represents an integer of 1 or 2, R2 represents a perfluoropolyether chain, at least one of the x-number of R3 is represented by formula (2-1) or (2-2), and R1 and R4 are each a terminal group which has 2-4 polar groups, in which the number of carbon atoms located at the shortest distance for carbon atoms bound to adjacent ones of the polar groups is 1-9, and which has an oxygen atom to be bound to a methylene group that is bound to R2.)
Inventors:
TANJI YUTAKA (JP)
KATO TSUYOSHI (JP)
YAGYU DAISUKE (JP)
FUKUMOTO NAOYA (JP)
YOSHIMURA NATSUMI (JP)
KATO TSUYOSHI (JP)
YAGYU DAISUKE (JP)
FUKUMOTO NAOYA (JP)
YOSHIMURA NATSUMI (JP)
Application Number:
PCT/JP2023/027183
Publication Date:
February 01, 2024
Filing Date:
July 25, 2023
Export Citation:
Assignee:
RESONAC CORP (JP)
International Classes:
C07C43/13; C07C233/18; C07C235/60; C07C255/15; C07C255/54; G11B5/725; G11B5/84; C10M107/38; C10N20/04; C10N30/00; C10N40/18
Domestic Patent References:
| WO2018116742A1 | 2018-06-28 | |||
| WO2017145995A1 | 2017-08-31 | |||
| WO2021251335A1 | 2021-12-16 | |||
| WO2021020066A1 | 2021-02-04 |
Foreign References:
| JP5743438B2 | 2015-07-01 |
Other References:
X.-C. GUO, B. MARCHON, R.-H. WANG, C. M. MATE, Q. DAI, R. J. WALTMAN, H. DENG, D. POCKER, Q.-F. XIAO, Y. SAITO, T. OHTANI: "A multidentate lubricant for use in hard disk drives at sub-nanometer thickness", JOURNAL OF APPLIED PHYSICS, AMERICAN INSTITUTE OF PHYSICS, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747, vol. 111, no. 2, 15 January 2012 (2012-01-15), 2 Huntington Quadrangle, Melville, NY 11747, pages 024503, XP055537932, ISSN: 0021-8979, DOI: 10.1063/1.3677984
Attorney, Agent or Firm:
OIKAWA Shu et al. (JP)
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