公开(公告)号：US20230303808A1

公开(公告)日：2023-09-28

申请号：US18023555

申请日：2021-08-31

申请人： KURARAY CO., LTD.

发明人： Tetsuyuki CHO ,  Yosuke UEHARA ,  Yoshikazu UENO ,  Toru ASADA ,  Eiichi ISHIDA

IPC分类号： C08L9/00 ,  C08J3/09

CPC分类号： C08L9/00 ,  C08J3/092 ,  C08J2309/00

摘要： Provided are an emulsion composition which can be produced more easily than a conventional method and has excellent emulsion stability, and a method for producing the same. The emulsion composition contains a liquid conjugated diene rubber, a diluent having a vapor pressure at 20° C. of 10 Pa or less, a surfactant, and water.

公开(公告)号：US20230331941A1

公开(公告)日：2023-10-19

申请号：US18022783

申请日：2021-05-26

申请人： KURARAY CO., LTD

发明人： Eiichi ISHIDA ,  Tetsuyuki CHO ,  Shinichi TAKEMOTO ,  Toru ASADA ,  Jiro TANAKA

IPC分类号： D06M15/693 ,  D06M15/61 ,  C08J5/06 ,  C08L7/00

CPC分类号： C08J5/06 ,  C08L7/00 ,  D06M15/61 ,  D06M15/693 ,  C08J2307/00 ,  C08J2409/06 ,  C08J2429/04 ,  C08J2477/02 ,  C08J2479/02 ,  C08L2205/035 ,  C08L2205/16 ,  D06M2101/34

摘要： To provide reinforcing fibers that are excellent in adhesiveness to rubber even though resorcinol, formaldehyde, and an epoxy compound are not used, and a molded article using the same. Reinforcing fibers including fibers, a surface-modifying layer covering at least a part of a surface of the fibers, and an adhesive layer containing conjugated Diene-Based rubber covering at least a part of the surface-modifying layer, the surface-modifying layer containing a polyamine compound having one or more kind of a functional group selected from primary to tertiary amino groups and an imino group, having a weight average molecular weight (Mw) of 300 or more.

公开(公告)号：US20220306822A1

公开(公告)日：2022-09-29

申请号：US17780087

申请日：2020-11-10

申请人： KURARAY CO., LTD.

发明人： Eiichi ISHIDA ,  Daisuke KODA ,  Toru ASADA ,  Shinichi TAKEMOTO ,  Shuhei YORIMITSU ,  Hiroyuki KAWAI

IPC分类号： C08J5/24 ,  C08L23/16 ,  C08L7/00 ,  D06M15/356

摘要： To provide surface-modified fibers and reinforcing fibers that are capable of enhancing the adhesiveness to rubber, without the use of resorcinol and formaldehyde, and a molded article using the same. Surface-modified fibers include fibers, and a surface-modifying layer covering at least a part of a surface of the fibers, and have a solid surface zeta potential on a surface of the surface-modifying layer of −20.0 to 30.0 mV.

公开(公告)号：US20210246299A1

公开(公告)日：2021-08-12

申请号：US16972849

申请日：2019-06-07

申请人： KURARAY CO., LTD.

发明人： Yusuke AMANO ,  Eiichi ISHIDA ,  Kazuhiko MAEKAWA ,  Daisuke KODA ,  Hiroshi KANBARA

IPC分类号： C08L51/04 ,  C08L51/06 ,  C08L29/04 ,  C08L23/08 ,  C08L23/22 ,  C08F236/06 ,  C08F236/08 ,  C08K3/04 ,  C08K3/36 ,  C08K5/54 ,  C08L9/06 ,  C08L7/00 ,  C08L91/00 ,  B60C1/00

摘要： The present invention provides a rubber composition having superior moldability, wear resistance, and grip performance, and tires therewith. The present invention relates to a rubber composition comprising: a copolymer (B) constituted of a vinyl alcohol polymer (B-1) region and a diene polymer (B-2) region; and a rubber component (C), wherein the rubber composition comprises 1 to 20 parts by mass of the copolymer (B) relative to 100 parts by mass of the rubber component (C).