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    • 6. 发明授权
    • Thermoplastic elastomers having improved heat resistance comprising
conjugated diene/methyl methacrylate block copolymers
    • 具有改进的耐热性的热塑性弹性体包括共轭二烯/甲基丙烯酸甲酯嵌段共聚物
    • US5476904A
    • 1995-12-19
    • US158395
    • 1993-11-29
    • Philippe HeimBruno VuilleminPhilippe TeyssiePhilippe BayardJinshan Wang
    • Philippe HeimBruno VuilleminPhilippe TeyssiePhilippe BayardJinshan Wang
    • C08F297/00C08F297/02C08L53/00C09J153/00C08F295/00
    • C08L53/00C08F297/026C09J153/00
    • Thermoplastic, elastomeric, conjugated diene (e.g., butadiene)/methyl methacrylate block copolymers having elevated Tg and improved impact strength, well suited as polymer impact strength-modifiers and for conversion into pressure-sensitive adhesives, are prepared by (a) anionically polymerizing a conjugated diene monomer in an apolar solvent medium to provide a living polydiene, (b) next adding an alkali metal alkoxyalcoholate ligand to the medium comprising the living polydiene thus formed, (c) block copolymerizing the step (b) living polydiene with methyl methacrylate comonomer to provide a living copolymer, and (d) reacting the step (c) living copolymer with at least one protonic compound, e.g., water, alcohol and/or acid, and completing the polymerization thereof, with the proviso that polymerization of the conjugated diene and the methyl methacrylate comonomers is strictly carried out in the apolar solvent medium, in particular in toluene, benzene or ethylbenzene.
    • 通过(a)阴离子聚合一种(a)阴离子聚合的方法制备具有Tg和提高的冲击强度的热塑性弹性体,共轭二烯(例如丁二烯)/甲基丙烯酸甲酯嵌段共聚物,非常适合作为聚合物冲击强度改性剂和用于转化成压敏粘合剂 共轭二烯单体在非极性溶剂介质中提供活性聚二烯,(b)接下来在包含如此形成的活性聚二烯的介质中加入碱金属烷氧基醇化物配体,(c)将活性聚二烯与甲基丙烯酸甲酯共​​聚单体嵌段共聚 提供活性共聚物,和(d)使活性共聚物与至少一种质子化合物例如水,醇和/或酸反应并完成其聚合反应,条件是共轭二烯的聚合反应 甲基丙烯酸甲酯共​​聚单体严格在非极性溶剂介质中进行,特别是在甲苯,苯或乙苯中。
    • 10. 发明授权
    • Impact-resistant composition based on thermoplastic methacrylic (co)polymer
    • 基于热塑性甲基丙烯酸(共)聚合物的抗冲击组合物
    • US06939917B2
    • 2005-09-06
    • US10182671
    • 2001-01-26
    • Patrice GaillardPhilippe HeimGilles MeunierBruno Vuillemin
    • Patrice GaillardPhilippe HeimGilles MeunierBruno Vuillemin
    • C08J5/00B29B7/38B29K33/04C08F291/00C08L33/12C08F8/00C08L9/00C08L25/02C08L33/06C08L35/02
    • C08L33/12C08L2666/24
    • The impact-resistant thermoplastic compositions comprising (A) a rigid thermoplastic methacrylic polymer or copolymer matrix P containing mostly methyl methacrylate units, (B) at least one impact-modifying additive and (C) at least one elastomer copolymer which contains grafting sites, at least on pendant chains, and is obtained from at least one vinylaromatic monomer (C1) and from at one monomer chosen from the monomers (C2): C1-C15 linear or branched alkyl acrylates, C1-C4 alkoxyalkyl acrylates and aralkyl acrylates, dienes (C3) and ethylenically unsaturated monomers (C4) having one or more pendant initiating functional groups, the said copolymer (C) being grafted by thermoplastic polymer groups P and being dispersed in the matrix (A) in the form of nodules, which can be called “particles”, from 10 nm to 500 nm in size and able to have a droplet, capsule-type monoinclusion and/or salami-type multi-inclusion morphology.
    • 耐冲击热塑性组合物包含(A)主要含有甲基丙烯酸甲酯单元的刚性热塑性甲基丙烯酸聚合物或共聚物基体P,(B)至少一种冲击改性添加剂和(C)含有接枝位点的至少一种弹性体共聚物, 至少在侧链上,并且由至少一种乙烯基芳族单体(C 1 H 1)和从一种选自单体(C 2 H 2)的单体获得: 丙烯酸C 1 -C 4烷基烷基酯和丙烯酸芳烷基酯,二烯(C 1 -C 6烷基) (C 3)和具有一个或多个起始起始官能团的烯属不饱和单体(C 4 S),所述共聚物(C)由热塑性聚合物基团P接枝并分散在 可以称为“颗粒”的结节形式的矩阵(A),其尺寸为10nm至500nm,并且能够具有液滴,胶囊型单一包封和/或萨拉米字型多重 - 纳入形态。