公开(公告)号：US20230120626A1

公开(公告)日：2023-04-20

申请号：US17788125

申请日：2020-12-16

Applicant: SHOWA DENKO K.K.

Inventor： Naoya FUKUMOTO ,  Tsuyoshi KATO ,  Katsumi MUROFUSHI ,  Daisuke YAGYU ,  Masaki NANKO ,  Natsumi SHIBATA

IPC: C10M105/72 ,  C10M105/56 ,  C07C43/13 ,  G11B5/725

Abstract: There is provided a fluorine-containing ether compound represented by the following formula. R1—R2—CH2—R3—CH2—OCH2CH(OH)CH2O—CH2—R3—CH2—R4—R5 (in the formula, R3 represents a perfluoropolyether chain; R2 and R4 represent a divalent linking group having a polar group and may be the same or different from each other; R1 and R5 represent a terminal group bonded to an oxygen atom of R2 or R4 and may be the same or different from each other; and at least one of R1 and R5 is an organic group having 1 to 8 carbon atoms and at least one of hydrogens included in the organic group is substituted by a cyano group).

公开(公告)号：US20210062101A1

公开(公告)日：2021-03-04

申请号：US16643989

申请日：2018-08-07

Applicant: SHOWA DENKO K.K.

Inventor： Tsuyoshi KATO ,  Daisuke YAGYU ,  Naoya FUKUMOTO ,  Yuta YAMAGUCHI

IPC: C10M105/54 ,  G11B5/82 ,  G11B5/725 ,  C10M107/38

Abstract: A fluorine-containing ether compound represented by Formula (1) is provided, R1-R2—CH2—R3—CH2—R4  (1) (In Formula (1), R1 is an alkyl group that may have a substituent, R2 is a divalent linking group bonded to R1 via an ethereal oxygen, R3 is a perfluoropolyether chain, and R4 is an end group which is different from R1-R2 and includes two or three polar groups, in which each of the polar groups is bonded to a different carbon atom, and the carbon atoms bonded to the polar groups are bonded to each other via a linking group containing a carbon atom not bonded to the polar groups.).

公开(公告)号：US20240002743A1

公开(公告)日：2024-01-04

申请号：US18009371

申请日：2021-06-07

Applicant: SHOWA DENKO K.K.

Inventor： Tsuyoshi KATO ,  Ayano ASANO ,  Natsumi SHIBATA ,  Daisuke YAGYU ,  Takuma KURODA ,  Naoya FUKUMOTO

IPC: C10M131/10 ,  C07C43/12 ,  G11B5/725

CPC classification number: C10M131/10 ,  C07C43/126 ,  C10N2040/18 ,  C10M2211/0425 ,  G11B5/7257

Abstract: What is provided is a fluorine-containing ether compound represented by the following formula. R1—R2—O—CH2—R3—CH2—O—R4—R5
(R3 is a perfluoropolyether chain; R2 is represented by Formula (2), R4 is represented by Formula (3), R1 and R5 are hydrogen atoms or Formula (4); a and b in Formula (2) are an integer of 0 to 2, c in Formula (2) is an integer of 2 to 5, d and e in Formula (3) are an integer of 0 to 2, f in Formula (3) is an integer of 2 to 5; at least one of b in Formula (2) and e in Formula (3) is 1 or more; and k in Formula (4) is an integer of 3 to 6.)

公开(公告)号：US20210155751A1

公开(公告)日：2021-05-27

申请号：US16640145

申请日：2018-08-07

Applicant: SHOWA DENKO K.K.

Inventor： Tsuyoshi KATO

IPC: C08G65/22 ,  C08G65/333 ,  G11B5/725

Abstract: A fluorine-containing ether compound characterized by being represented by the following formula (1): R1—R2—CH2—R3—CH2—R4—R5  (1) In the formula (1), R3 is a perfluoropolyether chain. R2 and R4 are divalent linkage groups having a polar group and may be the same or different. R1 and R5 are bonded to an atom other than a carbon atom of R2 or R4. R1 and R5 are terminal groups composed of an organic group having 1 to 8 carbon atoms and may be the same or different. At least one of R1 and R5 is a chain organic group having 1 to 8 carbon atoms wherein one or more hydrogen atoms of the chain organic group is substituted with a group having an amide bond.

公开(公告)号：US20180047419A1

公开(公告)日：2018-02-15

申请号：US15664013

申请日：2017-07-31

Applicant: SHOWA DENKO K.K.

Inventor： Naoya FUKUMOTO ,  Daisuke YAGYU ,  Yuta YAMAGUCHI ,  Shoko UETAKE ,  Tsuyoshi KATO ,  Hiroyuki TOMITA ,  Ryuta MIYASAKA ,  Katsumi MUROFUSHI

IPC: G11B5/725 ,  C10M105/54 ,  C08G65/26 ,  C07C43/13

Abstract: A fluorine-containing ether compound of the present invention is represented by Formula (1). R1—CH2—R2—CH2—R3  (1) (In Formula (1), R1 is an organic end group having 3 or more carbon atoms which includes two or more polar groups with each polar group being bonded to different carbon atoms and the carbon atoms to which the polar groups are bonded being bonded to each other via a linking group including the carbon atoms which are not bonded to the polar groups, R2 includes a perfluoropolyether chain represented by Formula (3), and R3 is a hydroxyl group or R1) —(CF2)y-1—O—((CF2)yO)z—(CF2)y-1—  (3) (In Formula (3), y represents an integer of 2 to 4, and z represents an integer of 1 to 30).

公开(公告)号：US20230257521A1

公开(公告)日：2023-08-17

申请号：US17630594

申请日：2020-07-10

Applicant: SHOWA DENKO K.K.

Inventor： Naoya FUKUMOTO ,  Daisuke YAGYU ,  Tsuyoshi KATO ,  Katsumi MUROFUSHI

IPC: C08G65/337 ,  G11B5/725 ,  C10M107/38 ,  C10N40/18

CPC classification number: C08G65/337 ,  C10M107/38 ,  G11B5/7257 ,  C10M2213/0606 ,  C10N2040/18

Abstract: A fluorine-containing ether compound represented by the following formula (1) is provided.





(In the formula (1), R1 is an alkoxy group having 1 to 10 carbon atoms, R2 is a perfluoropolyether chain, R3 is —OCH2CH(OH)CH2O(CH2)mOH (m in the formula is an integer of 2 to 4).)

公开(公告)号：US20230242829A1

公开(公告)日：2023-08-03

申请号：US18009221

申请日：2021-06-07

Applicant: SHOWA DENKO K.K.

Inventor： Natsumi SHIBATA ,  Naoya FUKUMOTO ,  Tsuyoshi KATO

IPC: C10M107/38 ,  C08G65/331 ,  C08G65/22 ,  C07C43/13 ,  G11B5/725

CPC classification number: C10M107/38 ,  C07C43/137 ,  C08G65/226 ,  C08G65/3318 ,  G11B5/7257 ,  C10M2213/043 ,  C10N2040/18

Abstract: What is provided is a fluorine-containing ether compound represented by the following formula. R1—CH2—R2—CH2—OCH2CH(OH)CH2O—CH2—R3—CH2—R4 (In the formula, R2 and R3 are perfluoropolyether chains, and R1 and R4 are terminal groups having two or three polar groups, in which individual polar groups are bound to different carbon atoms and the carbon atoms to which the polar groups are bound are bound to each other via a linking group having a carbon atom to which the polar groups are not bound).

公开(公告)号：US20210188766A1

公开(公告)日：2021-06-24

申请号：US16640132

申请日：2018-07-30

Applicant: SHOWA DENKO K.K.

Inventor： Masaki NANKO ,  Naoya FUKUMOTO ,  Daisuke YAGYU ,  Yuta YAMAGUCHI ,  Tsuyoshi KATO ,  Hiroyuki TOMITA ,  Katsumi MUROFUSHI ,  Shohei NISHIZAWA

IPC: C07C255/13 ,  C07C43/205 ,  C07C255/17 ,  C07C255/19 ,  C07C255/50 ,  C07D333/16 ,  C08G65/08 ,  C10M107/38 ,  G11B5/725

Abstract: Provided is a fluorine-containing ether compound that can be suitably used as a material for a lubricant for a magnetic recording medium, capable of forming a lubricant layer having excellent chemical substance resistance and wear resistance even when the thickness is small. A fluorine-containing ether compound represented by the following formula (1): R1—R2—CH2—R3—CH2—R4—R5  (1) In the formula (1), R3 is a perfluoropolyether chain. R2 and R4 are divalent linkage groups having a polar group, and may be the same or different. R1 and R5 are terminal groups bonded to R2 or R4, which may be the same or different, and at least one of R1 and R5 is an organic group having 1 to 8 carbon atoms wherein one or more hydrogen atoms of the organic group is substituted with a cyano group.

公开(公告)号：US20190084911A1

公开(公告)日：2019-03-21

申请号：US16082349

申请日：2017-01-30

Applicant: SHOWA DENKO K.K.

Inventor： Daisuke YAGYU ,  Yuta YAMAGUCHI ,  Naoya FUKUMOTO ,  Tsuyoshi KATO ,  Shoko UETAKE ,  Hiroyuki TOMITA ,  Ryuuta MIYASAKA ,  Naoko ITO ,  Ichiro OTA ,  Katsumi MUROFUSHI

IPC: C07C43/23 ,  C07C43/178 ,  C07D333/16 ,  C07D303/26 ,  C07D409/12 ,  C07D277/24 ,  C10M105/54 ,  G11B5/733

Abstract: The present invention relates to a fluorine-containing ether compound represented by Formula (1), R1—R2—CH2—R3—CH2—R4  (1). (In Formula (1), R1 is an end group including an organic group having at least one double bond or triple bond, R2 is a divalent linking group bonded to R1 by etheric oxygen, R3 is a perfluoropolyether chain, R4 is an end group having two or three polar groups with each polar group being bonded to different carbon atoms, and the carbon atoms, to which the polar groups are bonded, being bonded to each other via a linking group including carbon atoms to which the polar groups are not bonded.)

公开(公告)号：US20220259513A1

公开(公告)日：2022-08-18

申请号：US17630639

申请日：2020-07-09

Applicant: SHOWA DENKO K.K.

Inventor： Naoya FUKUMOTO ,  Daisuke YAGYU ,  Tsuyoshi KATO ,  Katsumi MUROFUSHI

IPC: C10M107/38 ,  C08G65/331 ,  C07C43/13 ,  G11B5/725

Abstract: A fluorine-containing ether compound represented by the following formula (1) is provided. R2—CH2—R1—CH2OCH2CH(OH)—(CH2)n—CH(OH)CH2OCH2—R1—CH2—R2  (1) (in the formula (1), n is an integer of 2 to 6, R1 is a perfluoropolyether chain, R2 is —OCH2CH(OH)CH2O(CH2)mOH (m in the formula is an integer of 2 to 4)).