Thermoplastic elastomeric block copolymers
    8.
    发明授权
    Thermoplastic elastomeric block copolymers 失效
    热塑性弹性体嵌段共聚物

    公开(公告)号:US06197889B1

    公开(公告)日:2001-03-06

    申请号:US08981051

    申请日:1997-12-11

    IPC分类号: C08F29300

    CPC分类号: C08F297/04

    摘要: Elastomeric block copolymers comprising at least one hard block A composed of styrene monomers and at least one elastomeric block (B/A) composed of styrene monomers and dienes, the glass transition temperature Tg of the block A being more than 25° C. and that of block (B/A) being less than 25° C. and the phase volume ratio of block A to block (B/A) being chosen so that the proportion of the hard phase in the total block copolymer is from 1 to 40% by volume and the amount by weight of the diene is less than 50% by weight, and the relative proportion of 1,2 linkages of the polydiene, based on the sum of 1,2- and 1,4-cis/trans linkages, being below 15%, are prepared by anionic polymerization by means of a lithium alkyl in a nonpolar solvent in the presence of a soluble potassium salt and are used for the production of shaped articles.

    摘要翻译: 弹性体嵌段共聚物包含至少一个由苯乙烯单体组成的硬嵌段A和至少一个由苯乙烯单体和二烯构成的弹性嵌段(B / A),嵌段A的玻璃化转变温度Tg高于25℃, (B / A)小于25℃,并且选择块A与嵌段(B / A)的相体积比,使得总嵌段共聚物中硬相的比例为1〜40% 并且二烯的重量百分比小于50重量%,并且基于1,2-和1,4-顺/反键的总和的聚二烯的1,2-键的相对比例, 低于15%,通过在非极性溶剂中在可溶性钾盐的存在下通过烷基锂进行阴离子聚合制备,并用于生产成型制品。

    Stabilised block copolymers made from styrol monomers and diene monomers
    10.
    发明申请
    Stabilised block copolymers made from styrol monomers and diene monomers 审中-公开
    由苯乙烯单体和二烯单体制成的稳定的嵌段共聚物

    公开(公告)号:US20060020061A1

    公开(公告)日:2006-01-26

    申请号:US10525088

    申请日:2003-07-25

    IPC分类号: C08K5/15

    摘要: The invention relates to thermoplastic moulded masses containing, a) at least one block copolymer (A), comprising, with relation to (A), a1) 50 to 90 wt. % of at least one styrol monomer, a2) 10 to 50 wt. % of at least one diene monomer, with the following as stabilisers, relative to the moulded mass, b) 0.001 to 0.18 wt. % of at least one benzofuranone derivative (B), c) 0.05 to 1 wt. % of at least one organic phosphite (C), and d) 0.1 to 0.3 wt. % of at least one stabiliser compound (D), selected from sterically hindered phenols and aromatic amines.

    摘要翻译: 本发明涉及含有a)至少一种嵌段共聚物(A)的热塑性模塑料,其包含与(A)相关的组合物,a1)50-90wt。 %的至少一种苯乙烯单体,a2)10〜50wt。 %的至少一种二烯单体,以下为稳定剂,相对于模制物质,b)0.001至0.18wt。 %的至少一种苯并呋喃酮衍生物(B),c)0.05〜1wt。 %的至少一种有机亚磷酸酯(C),和d)0.1〜0.3重量% %的至少一种稳定剂化合物(D),选自空间位阻酚和芳族胺。