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Title:
CYCLOPHOSPHAZENE COMPOUND, LUBRICANT COMPRISING SAME, AND MAGNETIC DISK
Document Type and Number:
WIPO Patent Application WO/2011/136379
Kind Code:
A1
Abstract:
Disclosed are a cyclophosphazene compound represented by formula (I), a lubricant comprising the compound, and a magnetic disk. In formula (I), n is 2, 3, or 4, m is an integer of 1-12, R is a C1-4 fluoroalkyl, and Rf is -CF2O(CF2CF2O)x(CF2O)yCF2- or -CF2CF2O(CF2CF2CF2O)zCF2CF2-. Symbols x, y, and z each is 0 or a positive real number so that the fluoropolyether containing the Rf and represented by HOCH2-Rf-CH2OH has a number-average molecular weight of 500-4,000, the fluoropolyether having a molecular-weight distribution (PD) of 1.0-1.5.

Inventors:
SHIMIZU, Tsuyoshi (5-3 Minatojimaminami-machi 5-chome, Chuo-ku, Kobe-sh, Hyogo ., 〒6500047, JP)
清水 豪 (〒47 兵庫県神戸市中央区港島南町5丁目5番3号 株式会社MORESCO内 Hyogo, 〒6500047, JP)
Application Number:
JP2011/060493
Publication Date:
November 03, 2011
Filing Date:
April 20, 2011
Export Citation:
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Assignee:
MORESCO Corporation (5-3 Minatojimaminami-machi 5-chome, Chuo-ku Kobe-sh, Hyogo ., 〒6500047, JP)
株式会社MORESCO (〒47 兵庫県神戸市中央区港島南町5丁目5番3号 Hyogo, 〒6500047, JP)
SHIMIZU, Tsuyoshi (5-3 Minatojimaminami-machi 5-chome, Chuo-ku, Kobe-sh, Hyogo ., 〒6500047, JP)
International Classes:
C07F9/6593; C08G65/335; C10M105/74; G11B5/725; C10N20/04; C10N30/00; C10N40/18
Domestic Patent References:
2006-01-26
2010-03-11
Foreign References:
JP2000260017A2000-09-22
JP2002275484A2002-09-25
JP2010108583A2010-05-13
Other References:
None
See also references of EP 2565198A1
Attorney, Agent or Firm:
TAMURA, Iwao (9-22, Terauchi 1-chomeToyonaka-shi, Osaka, 〒5610872, JP)
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Claims: