公开(公告)号：US20210261878A1

公开(公告)日：2021-08-26

申请号：US17275080

申请日：2019-08-28

Applicant: DAICEL CORPORATION

Inventor： Norihiro KIMOTO ,  Tomohiro GOTO ,  Hiroki KAGEYAMA

IPC: C10M125/02 ,  C10M169/04 ,  F16C33/04

Abstract: Provided is an initial break-in lubricant composition capable of easily and economically reducing the coefficient of friction of a sliding portion. The initial break-in lubricant composition includes an organic dispersion medium and nanocarbon particles in a quantity from 0.1 to 2000 ppm by mass. The nanocarbon particles are preferably particles of one or more nanocarbon material(s) selected from the group consisting of: nanodiamonds, fullerenes, graphene oxide, nanographite, carbon nanotubes, carbon nanofilaments, onion-like carbon, diamond-like carbon, amorphous carbon, carbon black, carbon nanohorns, and carbon nanocoils.

公开(公告)号：US20210087702A1

公开(公告)日：2021-03-25

申请号：US16968351

申请日：2019-01-28

Applicant: DAICEL CORPORATION

Inventor： Norihiro KIMOTO ,  Tomohiro GOTO ,  Kouichi UMEMOTO

IPC: C25D5/00 ,  C25D3/48 ,  C25D3/46 ,  C25D3/50 ,  C25D7/00

Abstract: Provided is a plating film that can exhibit a high gloss and a low contact resistance value. The plating film according to an embodiment of the present invention is a plating film including a noble metal matrix and nanodiamond particles dispersed in the noble metal matrix. The plating film according to an embodiment of the present invention preferably has a gloss at an incident angle of 60° of not less than 250 GU and/or a contact resistance value at a load of 50 gf of not greater than 1 mΩ, and a difference between a contact resistance value at a load of 50 gf and a contact resistance value at a load of 5 gf of not greater than 5 mΩ. The nanodiamond particles are preferably nanodiamond particles including a surface-modifying group containing a sterically repulsive group and particularly preferably nanodiamond particles including a surface-modifying group containing a polyglycerol chain.

公开(公告)号：US20200339908A1

公开(公告)日：2020-10-29

申请号：US16762550

申请日：2018-10-25

Applicant: DAICEL CORPORATION ,  TOHOKU UNIVERSITY

Inventor： Norihiro KIMOTO ,  Tomohiro GOTO ,  Koshi ADACHI ,  Tsubasa TAKAHASHI

IPC: C10M173/02 ,  C10M125/02

Abstract: The present invention provides an initial running-in agent composition suitable for forming a low-friction surface (running-in surface) on a sliding member, such as a hard carbon film, in a system in which water is used as a lubricant. The initial running-in agent composition (10) according to an embodiment of the present invention contains water 11 as a lubricant base and nanodiamond particles (12). In the initial running-in agent composition (10), a content of the water (11) is preferably 99 mass % or greater, and a content of the nanodiamond particles (12) is preferably 1.0 mass % or less.

公开(公告)号：US20200094195A1

公开(公告)日：2020-03-26

申请号：US16613096

申请日：2018-04-27

Applicant: Daicel Corporation

Inventor： Toshikazu NAKAMURA ,  Masao IWAYA ,  Takamasa SUZUKI ,  Tomohiro GOTO

IPC: B01D69/14 ,  B01D53/22 ,  B01D69/12 ,  B01D67/00

Abstract: This ionic liquid-containing laminate includes a porous layer having affinity with ionic liquids (C), said layer holding an ionic liquid-containing liquid (A) within voids therein, and a porous layer lacking affinity with ionic liquids (B). The porous layer having affinity with ionic liquids (C) may include an inorganic material (e.g., metal oxide particles having an average particle size of 0.001 to 10 μm on a number basis). The ionic liquid-containing liquid (A) may include an ionic liquid containing cations selected from ammonium, imidazolium and phosphonium cations, and anions selected from fluorine-containing anions, cyano-containing anions and amino acid-derived anions. The porous layer having affinity with ionic liquids (C) may include 1 to 100 volume parts of the ionic liquid-containing liquid (A) with respect to 100 volume parts of voids therein. The ionic liquid-containing laminate is easily formable, and is able to stably hold (or fix) the ionic liquid while maintaining said liquid in a liquid state.

公开(公告)号：US20230348808A1

公开(公告)日：2023-11-02

申请号：US18349809

申请日：2023-07-10

Applicant: DAICEL CORPORATION

Inventor： Norihiro KIMOTO ,  Tomohiro GOTO ,  Hiroki KAGEYAMA

IPC: C10M125/02 ,  C10M169/04 ,  F16C33/04

CPC classification number: C10M125/02 ,  C10M169/04 ,  F16C33/043 ,  C10N2030/06

Abstract: Provided is an initial break-in lubricant composition capable of easily and economically reducing the coefficient of friction of a sliding portion. The initial break-in lubricant composition includes an organic dispersion medium and nanocarbon particles in a quantity from 0.1 to 2000 ppm by mass. The nanocarbon particles are preferably particles of one or more nanocarbon material(s) selected from the group consisting of: nanodiamonds, fullerenes, graphene oxide, nanographite, carbon nanotubes, carbon nanofilaments, onion-like carbon, diamond-like carbon, amorphous carbon, carbon black, carbon nanohorns, and carbon nanocoils.

公开(公告)号：US20210154622A1

公开(公告)日：2021-05-27

申请号：US16612036

申请日：2018-04-27

Applicant: Daicel Corporation

Inventor： Toshikazu NAKAMURA ,  Masao IWAYA ,  Takamasa SUZUKI ,  Tomohiro GOTO

IPC: B01D69/02 ,  A01G7/02 ,  B01D61/38 ,  B01D67/00 ,  B01D69/12 ,  B01D71/02 ,  B01D71/26

Abstract: A carbon dioxide separation membrane according to the present invention includes: an ionic liquid affinitive porous layer (C) having an ionic liquid-containing liquid (A) retained in voids; and an ionic liquid non-affinitive porous layer (B). The ionic liquid affinitive porous layer (C) may contain inorganic materials (for example, metal oxide particles having an average particle size of about 0.001 to 5 μm on a number basis). An average thickness of the ionic liquid affinitive porous layer (C) may be about from 0.01 to 10 μm. The ionic liquid affinitive porous layer (C) may include the ionic liquid-containing liquid (A) at a ratio from 0.1 to 99 parts by volume with respect to 100 parts by volume of voids. It may be a carbon dioxide separation membrane for fertilizing plants with carbon dioxide. The carbon dioxide separation membrane can reduce a size of the carbon dioxide concentrating device and enables smooth operation of the device.