公开(公告)号：US20240043278A1

公开(公告)日：2024-02-08

申请号：US18258809

申请日：2022-01-13

Applicant: ZEON CORPORATION

Inventor： Arinobu KATADA ,  Hirokazu TAKAI

IPC: C01B32/159 ,  C01B32/168

CPC classification number: C01B32/159 ,  C01B32/168 ,  C01B2202/02 ,  C01B2202/32 ,  C01B2202/34 ,  C01B2202/36

Abstract: Provided is a technique related to oxidized carbon nanotubes having excellent dispersion stability and dispersibility in water. The oxidized carbon nanotubes include oxidized single-walled carbon nanotubes, have a ratio of the oxidized single-walled carbon nanotubes relative to the total number of oxidized carbon nanotubes of more than 50%, and have a BET specific surface area of 100 m2/g or less.

公开(公告)号：US20180044498A1

公开(公告)日：2018-02-15

申请号：US15551910

申请日：2016-02-26

Applicant: ZEON CORPORATION

Inventor： Masahiro SHIGETA ,  Tsutomu NAGAMUNE ,  Arinobu KATADA

IPC: C08K3/04 ,  H01B1/18 ,  C08K7/24

CPC classification number: C08K3/041 ,  B82Y5/00 ,  B82Y30/00 ,  B82Y40/00 ,  C08K3/04 ,  C08K7/06 ,  C08K7/24 ,  C08K2201/001 ,  C08K2201/003 ,  C08K2201/006 ,  C08K2201/011 ,  C08L83/04 ,  H01B1/18 ,  Y10S977/75 ,  Y10S977/753 ,  Y10S977/843 ,  Y10S977/932

Abstract: Disclosed is a silicone rubber composition and a vulcanized product thereof, which show high levels of flexibility and electrical conductivity at the same time. The disclosed silicone rubber composition comprises a silicone rubber and fibrous carbon nanostructures including carbon nanotubes, wherein the fibrous carbon nanostructures exhibit a convex upward shape in a t-plot obtained from an adsorption isotherm. The disclosed vulcanized product is obtainable by vulcanization of the silicone rubber composition.

公开(公告)号：US20170204244A1

公开(公告)日：2017-07-20

申请号：US15326544

申请日：2015-07-22

Applicant: ZEON CORPORATION

Inventor： Arinobu KATADA

IPC: C08K3/04

Abstract: Provided is a crosslinked rubber having excellent workability and heat resistance, and a crosslinkable rubber composition that can be used to form the crosslinked rubber. The crosslinkable rubber composition contains: a rubber including a carboxyl group-containing ethylenically unsaturated monomer unit; an amine-based crosslinking agent having a melting point of at least 50° C. and no higher than 180° C.; and one or more carbon nanotubes. The crosslinked rubber is obtainable through crosslinking of the crosslinkable rubber composition. The carbon nanotubes preferably have a BET specific surface area of from 600 m2/g to 2,000 m2/g.

公开(公告)号：US20180208738A1

公开(公告)日：2018-07-26

申请号：US15745787

申请日：2016-07-29

Applicant: ZEON CORPORATION

Inventor： Masaaki KOMATSU ,  Arinobu KATADA

IPC: C08K3/04 ,  C08K7/06 ,  C08J3/215

CPC classification number: C08K3/041 ,  B82Y30/00 ,  B82Y40/00 ,  C08J3/212 ,  C08J3/215 ,  C08J2327/18 ,  C08K7/06 ,  C08K2201/001 ,  C08K2201/003 ,  C08K2201/004 ,  C08K2201/011 ,  C08L27/12 ,  C08L27/18 ,  H01B1/24 ,  Y10S977/75 ,  Y10S977/752 ,  Y10S977/753 ,  Y10S977/842

Abstract: Disclosed is a composite resin material which includes a fluororesin and fibrous carbon nanostructures, wherein the composite resin material has a fluororesin content of 70% by mass or more and a fibrous carbon nanostructure content of 0.01% to 0.5% by mass based on the amount of the fluororesin, and wherein when a 50 μm thick shaped product obtained by shaping the composite resin material is observed with an optical microscope, the number of aggregates that contain the fibrous carbon nanostructures as a main component and have a diameter of 300 μm or more is 3 or less in a 30 mm×30 mm field of view.

公开(公告)号：US20170022316A1

公开(公告)日：2017-01-26

申请号：US15286037

申请日：2016-10-05

Applicant: ZEON CORPORATION

Inventor： Arinobu KATADA

IPC: C08F290/12 ,  E21B41/00 ,  F16J15/3284

CPC classification number: C08F290/128 ,  C08F279/02 ,  C08K5/0025 ,  C08K5/098 ,  C08K5/103 ,  C08K5/14 ,  C09K3/10 ,  C09K8/50 ,  C09K2003/1068 ,  C09K2200/0607 ,  E21B41/00 ,  F16J15/32 ,  F16J15/3284 ,  C08L9/02 ,  C08L33/18 ,  C08F220/14 ,  C08F2222/1033

Abstract: A cross-linkable rubber composition for a seal material which is used at an oilfield or gas well comprising a nitrile group-containing copolymer rubber which contains α,β-ethylenically unsaturated nitrile monomer units 10 to 60 wt % and has an iodine value of 120 or less, an α,β-ethylenically unsaturated carboxylic acid metal salt (B), and an organic peroxide cross-linking agent (C) is provided. According to the present invention, it is possible to provide a rubber composition which is excellent in shapeability, is high in durability against hydrogen sulfide and other corrosive gases, and is suitable for application as a seal material which is used at an oilfield or gas well.

Abstract translation: 一种用于油田或气井的密封材料的可交联橡胶组合物，其包含含腈基的共聚物橡胶，其含有10至60重量％的α，β-烯键式不饱和腈单体单元，碘值为120 或更少的α，β-烯键式不饱和羧酸金属盐（B）和有机过氧化物交联剂（C）。 根据本发明，可以提供一种成型性优异，耐硫化氢等腐蚀性气体的耐久性高的橡胶组合物，适用于在油田或气井中使用的密封材料 。

公开(公告)号：US20170015797A1

公开(公告)日：2017-01-19

申请号：US15116401

申请日：2015-03-13

Applicant: ZEON CORPORATION

Inventor： Arinobu KATADA ,  Yoshio FUKUMINE ,  Atsuhiro SHIONO

IPC: C08J3/24 ,  C08K5/205

CPC classification number: C08J3/24 ,  C08F220/44 ,  C08F236/12 ,  C08J3/246 ,  C08J2309/02 ,  C08K5/17 ,  C08K5/205 ,  C08L9/02 ,  C08L13/00 ,  C08L15/005 ,  C08F236/06 ,  C08F2220/281 ,  C08F222/02

Abstract: A cross-linked rubber is excellent in both fuel oil resistance and cold resistance. A cross-linkable rubber composition contains: a nitrile group-containing copolymer rubber [A] including less than 30 wt % α,β-ethylenically unsaturated nitrile monomer units (a1), conjugated diene monomer units (b1), and α,β-ethylenically unsaturated dicarboxylic acid monoester monomer units (d1), wherein at least part of the conjugated diene monomer units (b1) is hydrogenated; a nitrile group-containing copolymer rubber [B] including not less than 30 wt % α,β-ethylenically unsaturated nitrile monomer units (a2) and conjugated diene monomer units (b2), wherein at least part of the conjugated diene monomer units (b2) may be hydrogenated; and an amine-based cross-linking agent.

Abstract translation: 交联橡胶具有优异的耐燃油性和耐寒性。 可交联橡胶组合物含有：含有少于30重量％的α，β-烯属不饱和腈单体单元（a1），共轭二烯单体单元（b1）和α，β-二烯单体单元（b1）的含腈基共聚物橡胶[A] 烯键式不饱和二羧酸单酯单体单元（d1），其中至少部分共轭二烯单体单元（b1）被氢化; 含有不少于30重量％α，β-烯属不饱和腈单体单元（a2）和共轭二烯单体单元（b2）的含腈基共聚物橡胶[B]，其中至少部分共轭二烯单体单元（b2 ）可以被氢化; 和胺类交联剂。

公开(公告)号：US20150353811A1

公开(公告)日：2015-12-10

申请号：US14763462

申请日：2014-01-23

Applicant: ZEON CORPORATION

Inventor： Arinobu KATADA

IPC: C09K8/50

CPC classification number: C08F290/128 ,  C08F279/02 ,  C08K5/0025 ,  C08K5/098 ,  C08K5/103 ,  C08K5/14 ,  C09K3/10 ,  C09K8/50 ,  C09K2003/1068 ,  C09K2200/0607 ,  E21B41/00 ,  F16J15/32 ,  F16J15/3284 ,  C08L9/02 ,  C08L33/18 ,  C08F220/14 ,  C08F2222/1033

Abstract: A cross-linkable rubber composition for a seal material which is used at an oilfield or gas well made of a nitrile group-containing copolymer rubber (A) which contains α,β-ethylenically unsaturated nitrile monomer units 10 to 60 wt % and has an iodine value of 120 or less, an α,β-ethylenically unsaturated carboxylic acid metal salt (B), and an organic peroxide cross-linking agent (C) is provided. Accordingly, it is possible to provide a rubber composition which is excellent in shapeability, is high in durability against hydrogen sulfide and other corrosive gases, and is suitable for application as a seal material which is used at an oilfield or gas well.

Abstract translation: 一种用于密封材料的可交联橡胶组合物，其用于含有含腈基的共聚物橡胶（A）的油田或气井，其含有10至60重量％的α，β-烯属不饱和腈单体单元，并且具有 碘值为120以下，α，bgr-烯键式不饱和羧酸金属盐（B）和有机过氧化物交联剂（C）。 因此，可以提供成形性优异，耐硫化氢等腐蚀性气体的耐久性高的橡胶组合物，适用于在油田或气井中使用的密封材料。

公开(公告)号：US20220071068A1

公开(公告)日：2022-03-03

申请号：US17420719

申请日：2020-01-28

Applicant: ZEON CORPORATION

Inventor： Arinobu KATADA ,  Tomoko YAMAGISHI ,  Mitsugu UEJIMA

IPC: H05K9/00 ,  C01B32/159

Abstract: An electromagnetic wave absorbing sheet includes a sheet-shaped fibrous substrate and a plurality of carbon nanotubes attached to the sheet-shaped fibrous substrate. The attached amount of the carbon nanotubes in the electromagnetic wave absorbing sheet is 5 mass % or more. The electromagnetic wave absorbing sheet has a surface resistance of 20 Ω/sq. or more.

公开(公告)号：US20190292356A1

公开(公告)日：2019-09-26

申请号：US16307268

申请日：2017-05-24

Applicant: ZEON CORPORATION

Inventor： Arinobu KATADA

IPC: C08L13/02 ,  C08K3/04 ,  C08K5/18 ,  C08K5/3417

Abstract: Provided are a shaped product having excellent heat resistance and a rubber composition with which the shaped product can be formed. The rubber composition contains a rubber including an ethylenically unsaturated monomer unit having at least one carboxyl group, a compound having at least one amino group and an aromatic condensed ring structure including at least three rings, and one or more carbon nanotubes. The shaped product is obtained through shaping of the rubber composition.

公开(公告)号：US20180370197A1

公开(公告)日：2018-12-27

申请号：US16062162

申请日：2016-12-22

Applicant: ZEON CORPORATION

Inventor： Tsutomu NAGAMUNE ,  Arinobu KATADA

IPC: B32B25/02 ,  C08K3/04 ,  C08L21/02 ,  H05K9/00 ,  C01B32/158

Abstract: An electromagnetic wave absorption material comprises: fibrous carbon nanostructures; and an insulating material, wherein a content C of the fibrous carbon nanostructures when a content of the insulating material is 100 parts by mass is 5 parts by mass or more and 15 parts by mass or less, or, in the case where the fibrous carbon nanostructures are fibrous carbon nanostructures that exhibit a convex upward shape in a t-plot obtained from an adsorption isotherm, the content C is 0.3 parts by mass or more and 0.8 parts by mass or less, and the electromagnetic wave absorption material absorbs an electromagnetic wave in a frequency domain of more than 20 GHz.