公开(公告)号：US10968287B2

公开(公告)日：2021-04-06

申请号：US16476403

申请日：2018-01-18

Applicant: ZEON CORPORATION

Inventor： Kentaro Ono ,  Chikara Katano ,  Yasuaki Watanabe

IPC: C08C19/02

Abstract: A method for producing a hydrogenated conjugated diene polymer latex includes: a hydrogenation step of dissolving or dispersing a hydrogenation catalyst containing a platinum group element in a latex of a conjugated diene polymer to hydrogenate a carbon-carbon unsaturated bond in the polymer; an insoluble complex formation step of complexing the platinum group element with a complexing agent to form an insoluble complex; and an insoluble complex removing step of continuously feeding the latex which has undergone the insoluble complex formation step to a centrifuge machine and continuously performing a centrifugation operation to continuously remove the insoluble complex from the latex and continuously discharge the insoluble complex out of the centrifuge machine. In the insoluble complex removal step the feed rate of the latex to the centrifuge machine is adjusted to 0.5 to 15 m3/hour, and the centrifugal force in the centrifugation operation is adjusted to 200 to 10,000 G.

公开(公告)号：US10988609B2

公开(公告)日：2021-04-27

申请号：US16404431

申请日：2019-05-06

Applicant: ZEON CORPORATION

Inventor： Tomonori Nakashima ,  Chikara Katano ,  Masato Sakamoto

IPC: C08L33/20 ,  C08K7/02 ,  C08K5/098

Abstract: A nitrile group-containing highly saturated copolymer rubber composition containing a nitrile group-containing highly saturated copolymer rubber (A) having a Mooney viscosity [ML1+4, 100° C.] of 50 to 200, a nitrile group-containing highly saturated copolymer rubber (B) having a Mooney viscosity [ML1+4, 100° C.] of 5 to 45, and staple fibers (C) having an average fiber length of 0.1 to 12 mm is provided. According to the present invention, a nitrile group-containing highly saturated copolymer rubber composition which can give cross-linked rubber which is extremely high in tensile stress and is excellent in low heat buildup property and has good workability can be provided.

公开(公告)号：US08927640B2

公开(公告)日：2015-01-06

申请号：US14105030

申请日：2013-12-12

Applicant: Zeon Corporation

Inventor： Akira Tsukada ,  Kazuhiro Ejiri ,  Chikara Katano

IPC: C08K3/34 ,  C08L79/04 ,  B32B1/08 ,  B32B25/08 ,  C08K3/00 ,  C08K5/11 ,  C08K5/5419 ,  C08L9/02 ,  F16L11/06 ,  C08K3/04 ,  C08L27/06 ,  C08L33/00 ,  F16L11/04

CPC classification number: C08L79/04 ,  B32B1/08 ,  B32B25/04 ,  B32B25/08 ,  B32B25/14 ,  B32B27/06 ,  B32B27/304 ,  B32B27/308 ,  B32B2270/00 ,  B32B2307/306 ,  B32B2307/308 ,  B32B2307/536 ,  B32B2307/54 ,  B32B2307/714 ,  B32B2307/7265 ,  B32B2597/00 ,  B32B2605/00 ,  C08K3/013 ,  C08K3/04 ,  C08K5/11 ,  C08K5/5419 ,  C08K2201/016 ,  C08L9/02 ,  C08L27/06 ,  C08L33/00 ,  F16L11/06 ,  F16L2011/047 ,  Y10T428/1393 ,  C08L33/20 ,  C08L9/04 ,  C08L2666/04

Abstract: A nitrile copolymer latex composition containing a latex of a nitrile copolymer rubber (A) having α,β-ethylenically unsaturated nitrile monomer units in 10 to 75 wt %, conjugated diene monomer units in 5 to 89.9 wt %, and cationic monomer units and/or monomer units able to form cations in 0.1 to 20 wt %, an inorganic filler (B) having an aspect ratio of 30 to 2,000, and a plasticizer (C) having an SP value by the HOY method of 8 to 10.2 (cal/cm3)1/2, wherein a content of said plasticizer (C) is 0.1 to 200 parts by weight with respect to said nitrile copolymer rubber (A) as 100 parts by weight is provided.

Abstract translation: 一种腈共聚物胶乳组合物，其含有在10至75重量％的共轭二烯单体单元中具有5至89.9重量％的α，b-烯属不饱和腈单体单元的腈共聚物橡胶（A）和阳离子单体单元和 /或能够形成0.1〜20重量％阳离子的单体单元，纵横比为30〜2,000的无机填料（B）和HOY法的SP值为8〜10.2（cal / cm3）1/2，其中所述增塑剂（C）的含量相对于所述腈共聚物橡胶（A）为0.1〜200重量份，为100重量份。

公开(公告)号：US10280244B2

公开(公告)日：2019-05-07

申请号：US15124056

申请日：2015-03-25

Applicant: ZEON CORPORATION

Inventor： Sayaka Inoue ,  Chikara Katano

IPC: C08F236/12 ,  C08C19/02 ,  C08L9/02 ,  C08F220/44 ,  C08F2/38

Abstract: A nitrile group-containing copolymer rubber containing α,β-ethylenically unsaturated nitrile monomer units in 10 to 60 wt % and having a weight average radius of gyration of 10 to 100 nm in range is provided. According to the present invention, a nitrile group-containing copolymer rubber excellent in processability and able to give cross-linked rubber excellent in normal physical properties can be provided.