公开(公告)号：EP3724244B1

公开(公告)日：2024-02-21

申请号：EP18887568.6

申请日：2018-12-13

发明人： YAN, Yuan-Yong ,  QIN, Zengquan ,  SAITO, Koichi ,  COOK, Rita E.

IPC分类号： C08L15/00 ,  C08F236/06 ,  C08F236/10 ,  C08F36/06 ,  C08C19/22 ,  C08C19/25 ,  C08C19/44

公开(公告)号：EP4301791A1

公开(公告)日：2024-01-10

申请号：EP22763699.0

申请日：2022-03-02

申请人： LifeStyles Healthcare Pte. Ltd.

发明人： NGUYEN, Kc ,  NGOWPRASERT, Chayapon ,  NETRUNG, Chintana ,  BOONBUMRUNG, Atip ,  RABINGKAO, Phetcharat

IPC分类号： C08F4/12 ,  C08F136/08 ,  C08J5/02 ,  C08C19/20 ,  A61F6/04 ,  C08K3/06 ,  C08F36/08 ,  C08F4/52 ,  C08K5/36 ,  C08J3/24

公开(公告)号：EP4286419A1

公开(公告)日：2023-12-06

申请号：EP22780384.8

申请日：2022-03-23

申请人： Denka Company Limited

发明人： KIYOFUJI, Gaito ,  TOMIZAWA, Seiya ,  KOBAYASHI, Naoki

IPC分类号： C08F2/24 ,  B29C41/14 ,  B29C41/36 ,  C08F2/00 ,  C08F36/18

摘要： A method for producing a chloroprene-based polymer composition, by which a polymerization solution that has a sufficiently high polymer concentration in the resulting polymerization can be obtained and a target solid content concentration can be reached in a short time; the formation of aggregates during polymerization can be to suppressed; and a chloroprene-based polymer composition having high stability after polymerization and hardly generating aggregates can be obtained, at the same time, is provided.
According to the present invention, a method for producing a chloroprene-based polymer composition containing chloroprene-based polymer, comprising a polymerization step, wherein: in the polymerization step, chloroprene, or chloroprene and a monomer copolymerizable with chloroprene, are polymerized until reaching polymerization completion conversion; the polymerization step includes a monomer addition step and an emulsifier addition step, when a total amount of monomer used in the polymerization step is 100%, an initial addition amount of monomer at start of polymerization is X%; in the monomer addition step, when the initial addition amount of the monomer is 100%, a remaining monomer is added to the polymerization system from time when polymerization progresses and Y% of the monomer initially added converts, by reaching the polymerization completion conversion; in the emulsifier addition step, when the total amount of monomer used in the polymerization step is 100%, emulsifier is added from time when polymerization progresses and Z% of the monomer converts by reaching the polymerization completion conversion; and X, Y and Z satisfy following relationship. 1 ≤ XY / 100 ≤ 40 20 ≤ Z ≤ 75 − 65 ≤ Y − Z ≤ 50

公开(公告)号：EP4134244A1

公开(公告)日：2023-02-15

申请号：EP21783806.9

申请日：2021-03-29

申请人： ZS Elastomers Co., Ltd. ,  SUMITOMO CHEMICAL COMPANY, LIMITED ,  Zeon Corporation

发明人： RODRIGUEZ CASTANON, Jesus ,  HAMA, Hisakatsu ,  KANESAKA, Sho ,  ICHIMIYA, Yukari

IPC分类号： B60C1/00 ,  C08C19/25 ,  C08F36/04 ,  C08L9/00 ,  C08L9/06 ,  C08K3/013

摘要： Provided is a conjugated diene-based polymer comprising at least conjugated diene monomer units, and having a shrinkage factor of high molecular weight molecules of 0.4 to 0.8, a degree of adsorption of high molecular weight molecules onto silica of 75% or less, and a degree of adsorption of medium molecular weight molecules of 40 to 100%.

公开(公告)号：EP3896105B1

公开(公告)日：2022-11-30

申请号：EP20870141.7

申请日：2020-09-25

发明人： KANG, Suk Youn ,  BAE, Ju Ryang ,  CHOI, Seo Won ,  LEE, Tae Chul

IPC分类号： C08F36/04 ,  C08F4/54 ,  C08F8/42 ,  C08F8/30 ,  C08L15/00 ,  C08L9/00 ,  C08C19/22 ,  C08C19/25

公开(公告)号：EP4061860A2

公开(公告)日：2022-09-28

申请号：EP20890595.0

申请日：2020-11-19

申请人： BRIDGESTONE CORPORATION

发明人： KANATOMI, Yoshihiko ,  MAGISTRELLI, Jeffrey M. ,  HUE, Ryan J. ,  LIU, Yuan

IPC分类号： C08F36/04 ,  C08F236/10 ,  C08F136/06 ,  C08F8/42 ,  C08F8/04 ,  C08K3/36 ,  C08K3/06 ,  C08L9/00 ,  C08L9/06 ,  B60C1/00

公开(公告)号：EP3584262B1

公开(公告)日：2022-08-24

申请号：EP18754368.1

申请日：2018-02-01

发明人： KOTANI, Kyohei ,  KIMURA, Madoka

IPC分类号： C08F36/04 ,  C08F293/00 ,  C08K3/04 ,  C08K3/36 ,  C08K5/54 ,  C08L9/00 ,  C08L53/00 ,  B60C1/00 ,  C08F36/06 ,  C08F136/06 ,  C08L9/06 ,  C08F297/00

公开(公告)号：EP4035905A1

公开(公告)日：2022-08-03

申请号：EP20878622.8

申请日：2020-09-24

申请人： Sumitomo Rubber Industries, Ltd.

发明人： YASUDA, Rie ,  WASHIZU, Kensuke

IPC分类号： B60C1/00 ,  C08C19/02 ,  C08F36/04 ,  C08L15/00 ,  C08L25/04 ,  C08L45/00 ,  C08K3/04 ,  C08K3/36

摘要： The present disclosure provides a rubber composition and a tire which have excellent enduring performance as well as good fuel economy and wet grip performance. The present disclosure relates to a rubber composition containing a hydrogenated conjugated diene polymer (A) having a weight average molecular weight of 100,000 or more and a degree of hydrogenation of 75 mol% or higher, a hydrogenated conjugated diene polymer (B) having a weight average molecular weight of less than 100,000, and a resin having a softening point of 20°C or higher.

公开(公告)号：EP4023657A1

公开(公告)日：2022-07-06

申请号：EP21847332.0

申请日：2021-07-21

申请人： LG Chem, Ltd.

发明人： KANG, Suk Youn ,  LEE, Tae Chul ,  KIM, Dong Hui ,  CHOI, Seo Won

IPC分类号： C07F7/08 ,  C07F7/10 ,  C08F36/04 ,  C08F8/30 ,  C08F8/42 ,  C08F4/52 ,  C08L9/00 ,  C08K3/04

摘要： The present invention relates to an imine group-containing novel compound which is useful as a polymer modifier, a modified conjugated diene-based polymer including a functional group derived from the novel compound and having excellent affinity with a filler, a method for preparing the polymer, and a rubber composition including the polymer, and provides an imine group-containing compound represented by Formula 1, a modified conjugated diene-based polymer including a functional group derived therefrom, and a method for preparing the polymer.

公开(公告)号：EP3997134A1

公开(公告)日：2022-05-18

申请号：EP20739779.5

申请日：2020-07-07

申请人： ENI S.p.A.

发明人： BELLUSSI, Giuseppe ,  DE ANGELIS, Alberto Renato ,  CARROZZA, Chiara ,  BOGGIONI, Laura

IPC分类号： C08C19/20 ,  C08F36/00