发明申请
US20230102867A1 MODIFIED VINYLAROMATIC COPOLYMER, PRODUCTION METHOD THEREFOR, MODIFIED CONJUGATED DIENE COPOLYMER OBTAINED THEREFROM AND COMPOSITION THEREOF, CROSSLINKED RUBBER OBJECT, AND TIRE MEMBER
有权
基本信息:
- 专利标题： MODIFIED VINYLAROMATIC COPOLYMER, PRODUCTION METHOD THEREFOR, MODIFIED CONJUGATED DIENE COPOLYMER OBTAINED THEREFROM AND COMPOSITION THEREOF, CROSSLINKED RUBBER OBJECT, AND TIRE MEMBER
- 申请号：US17622699 申请日：2020-06-23
- 公开(公告)号：US20230102867A1 公开(公告)日：2023-03-30
- 发明人： Masanao KAWABE , Tadashi KURATOMI
- 申请人： NIPPON STEEL Chemical & Material Co., Ltd.
- 申请人地址： JP Tokyo
- 专利权人： NIPPON STEEL Chemical & Material Co., Ltd.
- 当前专利权人： NIPPON STEEL Chemical & Material Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2019-117636 20190625,JP2019-117688 20190625
- 国际申请： PCT/JP2020/024577 WO 20200623
- 主分类号： C08F212/36
- IPC分类号： C08F212/36 ; C08F212/08 ; C08F210/14 ; C08F8/42 ; C08F236/06 ; C08C19/25 ; B60C1/00
摘要：
To provide a modified vinylaromatic copolymer which can be used in production of copolymer rubber and which has reactivity and solubility, and a copolymer rubber material obtained therefrom, which simultaneously has processability, strength, and homogeneity. The modified vinylaromatic copolymer is a copolymer containing a structural unit (a) derived from a divinylaromatic compound and a structural unit (b) derived from a monovinylaromatic compound, wherein the structural unit (a) at least partially includes the following crosslinked structural unit (a1), and a terminal is modified by a modification group having at least one functional group selected from the group consisting of an amino group, a hydroxyl group, and an alkoxysilyl group.