公开(公告)号：US20200263104A1

公开(公告)日：2020-08-20

申请号：US15999837

申请日：2017-02-20

Applicant: SHOWA DENKO K.K.

Inventor： Yuta YAMAGUCHI ,  Naoya FUKUMOTO ,  Naoko ITO ,  Hiroyuki TOMITA ,  Ichiro OTA ,  Katsumi MUROFUSHI

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

Abstract: A fluorine-containing ether compound represented by a formula (1) shown below. R4—CH2—R3—CH2—R2—CH2—R1—CH2—R2—CH2—R3—CH2—R5  (1) In formula (1), R1 and R3 represent the same or different perfluoropolyether chains, R2 represents a linking group containing at least one polar group, one or both of R4 and R5 represent a terminal group containing two or more polar groups, and R4 and R5 are different.

公开(公告)号：US20210340457A1

公开(公告)日：2021-11-04

申请号：US16470713

申请日：2017-11-24

Applicant: SHOWA DENKO K.K.

Inventor： Naoya FUKUMOTO ,  Yuta YAMAGUCHI ,  Naoko ITO ,  Katsumi MUROFUSHI

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

Abstract: A fluorine-containing ether compound represented by formula (1) shown below. R4—CH2—R3—CH2—R2—CH2—R1—CH2—R2—CH2—R3—CH2—R4  (1) (In formula (1), R1 and R3 represent different perfluoropolyether chains, R2 represents a linking group containing one or more polar groups, and R4 represents a terminal group containing two or more polar groups.)

公开(公告)号：US20200005824A1

公开(公告)日：2020-01-02

申请号：US16489919

申请日：2018-02-20

Applicant: SHOWA DENKO K.K.

Inventor： Hiroyuki TOMITA ,  Hiroko HATTORI ,  Naoya FUKUMOTO ,  Ryuuta MIYASAKA ,  Naoko ITO ,  Ichiro OTA ,  Katsumi MUROFUSHI

IPC: G11B5/84 ,  G11B5/725 ,  C08G65/333 ,  C08G65/332 ,  C10M107/38

Abstract: A lubricant for a magnetic recording medium capable of forming a lubricant layer having excellent adhesion to a protective layer is provided. A lubricant for a magnetic recording medium contains a fluorine-containing 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 that the group having the ethylenic carbon-carbon double bond is disposed at one terminal of the perfluoroalkyl polyether chain, and a hydroxyl group is disposed at other terminal. It is preferable that the lubricant for a magnetic recording medium contains a compound in which one or more functional groups selected from a hydroxyl group, an amino group, an amido group and a carboxyl group is disposed at one or both terminals of a perfluoroalkyl polyether chain.

公开(公告)号：US20220280396A1

公开(公告)日：2022-09-08

申请号：US17632725

申请日：2020-08-04

Applicant: SHOWA DENKO K.K.

Inventor： Go FUKADA ,  Eiko KATO ,  Naoko ITO

IPC: A61K8/06 ,  A61K8/19 ,  A61K8/26 ,  A61K8/67 ,  A61Q19/00 ,  A61K8/73

Abstract: A water-in-oil emulsion composition includes (a) at least one ascorbic acid phosphate ester compound selected from the group consisting of ascorbic acid phosphate esters and salts thereof, (b) an organically modified clay mineral, (c) an oil-based agent, and (d) water, in which a content of the component (b) is 0.2% by mass to 4.5% by mass.

公开(公告)号：US20210401681A1

公开(公告)日：2021-12-30

申请号：US17288983

申请日：2019-10-30

Applicant: SHOWA DENKO K.K.

Inventor： Natsuno MISHINA ,  Naoko ITO ,  Manami HATANO

IPC: A61K8/06 ,  A61K8/67 ,  A61K8/73 ,  A61K8/92 ,  A61Q19/00

Abstract: Provided is an oil-in-water-type skin external agent containing: (a) at least one tocopherol phosphate ester compound selected from the group consisting of tocopherol phosphate ester and a salt thereof; (b) gellan gum; (c) a dihydric or trihydric alcohol; (d) at least one oil component selected from the group consisting of esters of fatty acids having 6 to 12 carbon atoms and polyhydric alcohols, and vegetable oils; and (e) water.

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：US20200323759A1

公开(公告)日：2020-10-15

申请号：US16754015

申请日：2018-10-05

Applicant: SHOWA DENKO K.K.

Inventor： Natsuno MISHINA ,  Naoko ITO ,  Manami HATANO ,  Risa IGUCHI

IPC: A61K8/55 ,  A61K8/02 ,  A61K8/73 ,  A61K8/19

Abstract: A gel composition containing (a) at least one selected from tocopherol phosphoric acid esters and salts thereof; (b) carrageenan; (c) locust bean gum; (d) at least one selected from agar and glucomannan; and e) water.

公开(公告)号：US20200010619A1

公开(公告)日：2020-01-09

申请号：US16489931

申请日：2018-02-06

Applicant: SHOWA DENKO K.K.

Inventor： Takuya MINAMI ,  Yoshishige OKUNO ,  Yuta YAMAGUCHI ,  Ryuuta MIYASAKA ,  Naoya FUKUMOTO ,  Hiroko HATTORI ,  Hiroyuki TOMITA ,  Michio SERI ,  Naoko ITO ,  Ichiro OTA ,  Katsumi MUROFUSHI

IPC: C08G65/331 ,  G11B5/725 ,  C10M107/38 ,  C08G65/333

Abstract: A fluorine-containing ether compound of the present invention is represented by the following General Formula (1). (In the General Formula (1), X is a trivalent atom or a trivalent atom group, A is a linking group including at least one polar group, B is a linking group having a perfluoropolyether chain, and D is a polar group or a substituent having a polar group at the end.) [Chem. 1] XA-B-D)3   (1)

公开(公告)号：US20200002258A1

公开(公告)日：2020-01-02

申请号：US16489896

申请日：2018-02-08

Applicant: SHOWA DENKO K.K.

Inventor： Naoya FUKUMOTO ,  Ryuuta MIYASAKA ,  Hiroyuki TOMITA ,  Michio SERI ,  Naoko ITO ,  Katsumi MUROFUSHI

IPC: C07C43/13 ,  C08G65/337 ,  G11B5/725

Abstract: A fluorine-containing ether compound according to the present invention is a fluorine-containing ether compound represented by the following General Formula (1). [Chem. 1] (F2CIA-B-D)2  (1)

公开(公告)号：US20180009773A1

公开(公告)日：2018-01-11

申请号：US15640729

申请日：2017-07-03

Applicant: SHOWA DENKO K.K.

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

IPC: C07D303/28 ,  C10M105/54 ,  C07C43/13 ,  C07C43/23 ,  G11B5/725

CPC classification number: C07D303/28 ,  C07C43/137 ,  C07C43/23 ,  C10M105/54 ,  C10M107/38 ,  C10M2211/0425 ,  C10M2213/043 ,  C10N2230/06 ,  C10N2240/204 ,  C10N2250/14 ,  G11B5/725

Abstract: This fluorine-containing ether compound is represented by Formula (1). R1—R2—CH2—R3—CH2—R4—R5  (1) (in Formula (1), R1 is an aryl group or an aralkyl group, R2 is a divalent linking group having 0 or 1 polar group, R3 is a perfluoropolyether chain, R4 is a divalent linking group having 2 or 3 polar groups, and R5 is an aryl group or an aralkyl group.)