公开(公告)号：US11261395B2

公开(公告)日：2022-03-01

申请号：US16972813

申请日：2019-06-10

Applicant: SHOWA DENKO K.K.

Inventor： Tsuyoshi Kato ,  Kentaro Watanabe ,  Yasuyuki Ueda

IPC: C10M103/02 ,  C10M105/72 ,  G11B5/725 ,  C07C57/50 ,  C07C65/30 ,  C07C225/06 ,  C07C305/22 ,  C07D487/22 ,  C10M105/60 ,  C10M105/70 ,  C10N20/00 ,  C10N40/18

Abstract: The invention provides a fullerene compound; a lubricant that is for a magnetic recording medium and that contains the fullerene compound; and a magnetic recording medium. The fullerene compound is an ionic liquid that is represented by general formula (1) and is formed from a Bronsted acid (Hn1X) and a Bronsted base ([R2R3)N—]m1—R1); wherein one of the Brønsted acid and the Broønsted base contains a group having a fullerene; and the other contains a perfluoroalkyl chain.

公开(公告)号：US11525032B2

公开(公告)日：2022-12-13

申请号：US16625860

申请日：2018-06-27

Applicant: SHOWA DENKO K.K.

Inventor： Kentaro Watanabe ,  Yasuyuki Ueda ,  Kenzo Hanawa

IPC: C08G65/321 ,  G11B5/84 ,  C08F299/02 ,  G11B5/725 ,  C10M107/38 ,  C08G65/32 ,  C08G65/00 ,  C08G65/337 ,  C08G65/334 ,  C10M147/04

Abstract: According to one aspect of the present invention, an organic fluorine compound is represented by a general formula (R-π-E-CH2-A-CH2-E′)n-π′-G  (1B) (where n is an integer of 2 to 5, A is a divalent perfluoropolyether group, π is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E and E′ are each independently an ether bond or an ester bond or a group that is represented by a chemical formula —O—CH2CH(OH)CH2O— π′ is a group in which n+1 hydrogen atoms are separated from benzene, G is an organic group containing a fullerene skeleton, the n number of groups each of which is represented by a general formula R-π-E-CH2-A-CH2-E′- may be the same or different, and at least one π among the n number of π is an arylene group).

公开(公告)号：US10738260B2

公开(公告)日：2020-08-11

申请号：US16322564

申请日：2017-08-08

Applicant: SHOWA DENKO K.K.

Inventor： Takeshi Igarashi ,  Kentaro Watanabe ,  Yasuyuki Ueda

IPC: C10M107/38 ,  C08G65/332 ,  C10M105/54 ,  C10N40/18 ,  C10N50/08 ,  C07C69/63

Abstract: One embodiment of the present invention is a fullerene derivative represented by general formula (1) (wherein FLN is a fullerene backbone; each A is independently a monovalent group including a divalent perfluoropolyether group; each R is each independently a hydrogen atom, a hydrocarbon group, or an alkoxycarbonyl group including a divalent perfluoropolyether group; at least one of the 2m R is a hydrocarbon group or an alkoxycarbonyl group including a divalent perfluoropolyether group; m is an integer from 1 to 5; and n is an integer from 1 to 6).

公开(公告)号：US11820862B2

公开(公告)日：2023-11-21

申请号：US16625870

申请日：2018-06-27

Applicant: SHOWA DENKO K.K.

Inventor： Kentaro Watanabe ,  Yasuyuki Ueda ,  Kenzo Hanawa

IPC: C08G65/321 ,  G11B5/84 ,  C08G65/32 ,  C08G65/00 ,  C08G65/337 ,  C08G65/334 ,  C10M147/04 ,  C08F299/02 ,  G11B5/725 ,  C10M107/38

CPC classification number: C08G65/321 ,  C08F299/02 ,  C08G65/007 ,  C08G65/32 ,  C08G65/337 ,  C08G65/3344 ,  C10M147/04 ,  G11B5/7257 ,  G11B5/84 ,  G11B5/8408 ,  C10M107/38

Abstract: According to one aspect of the present invention, an organic fluorine compound is represented by a general formula

(R-π-E-CH2)2-A  (1A)

(where A is a divalent perfluoropolyether group, π is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E is an ether bond or an ester bond or a group that is represented by a chemical formula

—O—CH2CH(OH)CH2O—

two groups each of which is represented by a general formula

R-π-E-CH2—

may be the same or different, and at least one n among two π is an arylene group).

公开(公告)号：US11358927B2

公开(公告)日：2022-06-14

申请号：US17049792

申请日：2019-04-25

Applicant: SHOWA DENKO K.K.

Inventor： Yasuyuki Ueda ,  Akira Shibuya ,  Hideo Miyata ,  Hiroshi Uchida

IPC: C07C231/06 ,  B01J31/02

Abstract: A method of producing an N,N-disubstituted amide of the present invention is a method of reacting a nitrile with an alcohol in the presence of a catalyst, wherein the nitrile is a compound represented by R1CN (R1 represents an alkyl group having 10 or less carbon atoms or an aryl group having 10 or less carbon atoms), wherein the alcohol is a compound represented by R2OH (R2 represents an alkyl group having 10 or less carbon atoms), wherein the catalyst is a metal salt represented by MXn (M represents a metal cation having an oxidation number of n, X represents a monovalent anion including a substituted sulfonyl group represented by —S(═O)2—R3 (R3 represents a hydrocarbon group having 10 or less carbon atoms or a group in which some or all of hydrogen atoms in the hydrocarbon group are substituted with fluorine atoms), and n represents an integer of 1 to 4), a substituent bonded to a carbon atom in a carbonyl group of the N,N-disubstituted amide is R1, and two substituents bonded to nitrogen atoms in an amide group are both R2.

公开(公告)号：US10336764B2

公开(公告)日：2019-07-02

申请号：US15828987

申请日：2017-12-01

Applicant: SHOWA DENKO K.K.

Inventor： Takeshi Igarashi ,  Yasuyuki Ueda ,  Kentaro Watanabe

IPC: C07D487/22 ,  C07D487/18 ,  C07D487/08 ,  C07D209/70 ,  C10M105/70 ,  C10M105/54 ,  C10M103/02 ,  C10M105/00

Abstract: A fullerene derivative, used as a lubricant, includes, in a molecule: a fullerene backbone; and n pyrrolidine rings each being condensed to the fullerene backbone, each of the pyrrolidine rings including one aryl group including a group including m perfluoropolyether chains, “m” being an integer from 2 to 5 and “n” being an integer from 1 to 5.

公开(公告)号：US10246553B2

公开(公告)日：2019-04-02

申请号：US15803963

申请日：2017-11-06

Applicant: SHOWA DENKO K.K.

Inventor： Kentaro Watanabe ,  Yasuyuki Ueda ,  Takeshi Igarashi

IPC: C08G65/329 ,  C08G65/332 ,  C08G65/333 ,  C08G65/337 ,  C10M107/38

Abstract: In an organic fluorine compound, an organic group including a single aromatic ring or a condensed ring consisting of aromatic rings at a non-bonded terminal is bonded to each of all of terminals of a chain structure including a perfluoropolyether structure.