BLOCK COPOLYMER HYDROGENATE, RESIN COMPOSITION, AND VARIOUS APPLICATIONS THEREOF

    公开(公告)号:EP3805284A1

    公开(公告)日:2021-04-14

    申请号:EP19811093.4

    申请日:2019-05-30

    申请人: Kuraray Co., Ltd.

    摘要: The present invention relates to a block copolymer including a polymer block (A) containing more than 70 mol% of a structural unit derived from an aromatic vinyl compound, and a polymer block (B) containing 30 mol% or more of a structural unit derived from a conjugated diene compound, the block copolymer further satisfying following conditions.
    Condition (1): A content of the polymer block (A) in the block copolymer is 1 to 70% by mass.
    Condition (2): A maximum width of a series of temperature regions where tan δ measured in accordance with JIS K7244-10 (2005), under conditions including a strain amount of 0.1%, a frequency of 1 Hz, a measurement temperature of -70 to 100°C, and a temperature rise rate of 3°C/min, is 1.0 or more is less than 16°C.
    Condition (3): A temperature at a peak position of tan δ in the condition (2) is 0°C to +50°C.
    Condition (4): A mobility parameter M indicating a mobility of the polymer block (B) is 0.01 to 0.25 sec.

    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
    5.
    发明公开
    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 审中-公开
    氢化嵌段共聚物,树脂组合物,压敏胶粘剂,粘合剂,成型物体,液体包装容器,医疗工具,医用管,天然气密封件和天气密封件

    公开(公告)号:EP3263613A1

    公开(公告)日:2018-01-03

    申请号:EP16755504.4

    申请日:2016-02-23

    申请人: Kuraray Co., Ltd.

    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.

    摘要翻译: 本发明提供一种氢化嵌段共聚物及含有该氢化嵌段共聚物的树脂组合物,该氢化嵌段共聚物能够得到成型性,机械强度良好,柔软性,耐扭结性,透明性优异,且压敏粘合性,密合性,耐候性优异的树脂组合物 ,以及使用它们制造的压敏粘合剂,粘合剂,模塑制品,液体包装容器,医疗工具,医用管,用于气密密封的角部构件以及气候密封件。 具体而言,氢化嵌段共聚物是将至少含有主要由来自芳香族乙烯基化合物的结构单元构成的聚合物嵌段(A)和以聚合物嵌段(B)为主体的嵌段共聚物氢化而成的氢化嵌段共聚物 衍生自异戊二烯的结构单元,衍生自丁二烯的结构单元或衍生自异戊二烯和丁二烯的混合物的结构单元,其中聚合物嵌段(A)的含量为1质量%以上且小于5质量% 相对于氢化嵌段共聚物的总量,聚合物嵌段(B)的1,2-键和3,4-键的总含量为30〜85摩尔%,聚合物嵌段 (B)为80摩尔%以上,氢化嵌段共聚物的重均分子量为15万〜80万。

    THERMOPLASTIC POLYMER COMPOSITION AND MOLDED ARTICLE
    8.
    发明公开
    THERMOPLASTIC POLYMER COMPOSITION AND MOLDED ARTICLE 审中-公开
    热塑性聚氨酯密封胶

    公开(公告)号:EP2592115A1

    公开(公告)日:2013-05-15

    申请号:EP11803604.5

    申请日:2011-07-05

    申请人: Kuraray Co., Ltd.

    摘要: A thermoplastic polymer composition which is excellent in flexibility, mechanical properties, and moldability and is capable of adhering to ceramics, metals, and synthetic resins even by heat treatment at a low temperature (for example, 190 °C or lower) without the treatment with a primer, and a molded product obtained by using the thermoplastic polymer composition. The thermoplastic polymer composition includes 100 parts by mass of a thermoplastic elastomer (A), 1 to 100 parts by mass of a polyvinyl acetal resin (B), 5 to 100 parts by mass of a polar group-containing olefin-based copolymer (C), and 0.1 to 300 parts by mass of a softener (D). The thermoplastic elastomer (A) is a block copolymer which has a polymer block constituted by aromatic vinyl compound units and a polymer block constituted by conjugated diene units or a hydrogenated product of the block copolymer.

    摘要翻译: 一种热塑性聚合物组合物,其柔软性,机械性能和成型性优异,并且即使通过在低温(例如190℃或更低)下的热处理也能够粘附到陶瓷,金属和合成树脂上而不用 底漆,以及使用该热塑性聚合物组合物得到的成型体。 热塑性聚合物组合物包含100质量份热塑性弹性体(A),1〜100质量份聚乙烯醇缩醛树脂(B),5〜100质量份含极性基团的烯烃类共聚物(C )和0.1〜300质量份的软化剂(D)。 热塑性弹性体(A)是具有由芳香族乙烯基化合物单元构成的聚合物嵌段和由共轭二烯单元构成的聚合物嵌段或嵌段共聚物的氢化物的嵌段共聚物。