- 专利标题: Hydrogenated block copolymer, resin composition, pressure-sensitive adhesive, adhesive, molded object, liquid-packaging container, medical tool, medical tube, corner member for weather seal, and weather seal
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申请号: US17089404申请日: 2020-11-04
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公开(公告)号: US11279789B2公开(公告)日: 2022-03-22
- 发明人: Shinya Oshita , Yusuke Nojima , Mikio Masuda
- 申请人: KURARAY CO., LTD.
- 申请人地址: JP Kurashiki
- 专利权人: KURARAY CO., LTD.
- 当前专利权人: KURARAY CO., LTD.
- 当前专利权人地址: JP Kurashiki
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JPJP2015-033855 20150224
- 主分类号: C08F297/04
- IPC分类号: C08F297/04 ; C08L53/02 ; C08L23/10 ; B32B27/06 ; B32B7/12 ; C08C19/02 ; C09J153/02 ; B32B25/08 ; B32B27/08 ; B32B27/32 ; B65D65/40 ; C08L23/14 ; C09J123/14
摘要:
Provided are a hydrogenated block copolymer capable of giving a resin composition having good moldability and sufficient mechanical strength and excellent in flexibility, kink resistance and transparency and also excellent in pressure sensitive adhesiveness, adhesiveness and weather resistance, and a resin composition containing the hydrogenated block copolymer, as well as a pressure sensitive adhesive, an adhesive, a molded article, a liquid-packaging container, a medical tool, a medical tube, a corner member for weather seal, and a weather seal that are produced using these. Specifically, the hydrogenated block copolymer is a hydrogenated block copolymer prepared by hydrogenating a block copolymer that contains at least a polymer block (A) consisting mainly of a structural unit derived from an aromatic vinyl compound, and a polymer block (B) consisting mainly of a structural unit derived from isoprene, a structural unit derived from butadiene, or a structural unit derived from a mixture of isoprene and butadiene, wherein the content of the polymer block (A) is 1% by mass or more and less than 5% by mass relative to the total amount of the hydrogenated block copolymer, the total content of the 1,2-bond and the 3,4-bond of the polymer block (B) is 30 to 85 mol %, the hydrogenation rate of the polymer block (B) is 80 mol % or more, and the weight average molecular weight of the hydrogenated block copolymer is 150,000 to 800,000.