公开(公告)号：US11046797B2

公开(公告)日：2021-06-29

申请号：US16082677

申请日：2017-03-24

Applicant: ZEON CORPORATION

Inventor： Kunihiro Goto ,  Maki Mesuda ,  Koji Annaka ,  Takuya Ishii

IPC: H01M4/13 ,  H01M4/62 ,  C08F220/48 ,  H01G11/38 ,  C08F220/44 ,  H01M4/139 ,  C08F220/46 ,  H01G11/30 ,  H01M10/0525

Abstract: A disclosed binder composition comprises a copolymer which comprises a nitrile group-containing monomer unit, an acidic group-containing monomer unit and a basic group-containing monomer unit, wherein the proportion of the nitrile group-containing monomer unit in the copolymer is 70.0 mol % or more and 99.0 mol % or less, and wherein the total proportion of the acidic group-containing monomer unit and the basic group-containing monomer unit in the copolymer is 0.8 mol % or more and 10.0 mol % or less.

公开(公告)号：US12202923B2

公开(公告)日：2025-01-21

申请号：US17772770

申请日：2020-10-28

Applicant: ZEON CORPORATION

Inventor： Yasuaki Watanabe ,  Kunihiro Goto

IPC: C08F236/12

Abstract: A nitrile-group-containing copolymer rubber, including 15% by weight or more and less than 28% by weight of α,β-ethylenically unsaturated nitrile monomer units (a), 10 to 50% by weight of α,β-ethylenically unsaturated monocarboxylic acid ester monomer units (b), 22 to 74% by weight of conjugated diene monomer units (c), and 1 to 10% by weight of carboxyl group-containing monomer units (d) and having an iodine value of 120 or less, wherein the conjugated diene monomer units (c) are at least partially hydrogenated, and the proportion of isoprene units in the conjugated diene monomer units (c) is 5% by weight or more and less than 33% by weight.