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    AQUEOUS POLYMER DISPERSION AND PROCESS
    3.
    发明申请
    AQUEOUS POLYMER DISPERSION AND PROCESS 审中-公开
    水性聚合物分散体和工艺

    公开(公告)号：US20100081764A1

    公开(公告)日：2010-04-01

    申请号：US12444665

    申请日：2007-10-05

    申请人： Keltoum Ouzineb ,  Jong-Shing Guo ,  Augustin Chen ,  Sheng Jiang ,  Leo Ternorutsky

    发明人： Keltoum Ouzineb ,  Jong-Shing Guo ,  Augustin Chen ,  Sheng Jiang ,  Leo Ternorutsky

    IPC分类号： C08F2/22 ,  C08L31/00 ,  C08K5/05 ,  C08K5/09

    CPC分类号： C08F2/22 ,  C08F2/26 ,  C08F220/18 ,  C08F220/28 ,  C08F257/02 ,  C08F265/04 ,  C08F265/06 ,  C08L51/003 ,  C08L2666/02 ,  C09D151/003 ,  C09J151/003

    摘要： There is described a multi step process for preparing an aqueous dispersion of heterogeneous polymer particles by mini-emulsion polymerisation, the process comprising the steps of (I) (a) forming a mixture comprising: (i) water; (ii) at least one stabiliser (such as a surfactant and a hydrophobic co-stabiliser); (iii) at least one tackifier (such as polyterpenes, rosin resins and/or hydrocarbon resins); (iv) at least one α,β-ethylenically unsaturated monomer; (b) applying high shear to the mixture from step (a) to form an essentially stable mini-emulsion comprising an aqueous continuous phase and dispersed therein stabilised droplets of average diameter from about 10 to about 1000 nm, (c) polymerising the monomer(s) within the droplets in the presence of a free radical initiator; (d) adding further monomer to the dispersed phase to form a dispersion; then: (II) using the dispersion from step (I) as a seed to form a dispersion of heterogeneous polymer particles in a subsequent emulsion polymerisation. The resultant tackified PSAs may have a core shell structure and are stable under high shear.

    摘要翻译： 描述了通过微乳液聚合制备非均相聚合物颗粒的水分散体的多步骤方法，该方法包括以下步骤：（I）（a）形成混合物，其包含：（i）水; （ii）至少一种稳定剂（如表面活性剂和疏水性共稳定剂）; （iii）至少一种增粘剂（例如多萜烯，松香树脂和/或烃树脂）; （iv）至少一种α，β-烯属不饱和单体; （b）对来自步骤（a）的混合物施加高剪切以形成包含水性连续相的基本上稳定的微乳液并分散在其中，平均直径为约10至约1000nm的稳定液滴，（c）使单体聚合 在自由基引发剂的存在下在液滴内; （d）将另外的单体加入到分散相中以形成分散体; 然后：（II）使用来自步骤（I）的分散体作为种子以在随后的乳液聚合中形成非均相聚合物颗粒的分散体。 所得到的增粘PSA可以具有核壳结构，并且在高剪切下是稳定的。

    Polymer Composition and Process
    4.
    发明申请
    Polymer Composition and Process 审中-公开
    聚合物组成和工艺

    公开(公告)号：US20100093930A1

    公开(公告)日：2010-04-15

    申请号：US12522564

    申请日：2008-01-11

    申请人： Jong-Shing Guo ,  Augustin Chen ,  Sheng Jiang ,  Leo Ternorutsky ,  Keltoum Ouzineb

    发明人： Jong-Shing Guo ,  Augustin Chen ,  Sheng Jiang ,  Leo Ternorutsky ,  Keltoum Ouzineb

    IPC分类号： C08F2/22

    CPC分类号： C08F283/006 ,  C08G18/8064 ,  C08G2170/40 ,  C08L2666/20 ,  C09J175/16

    摘要： There is described a multi step mini-emulsion process for preparing a hybrid acrylic/polyurethane pressure sensitive adhesive (PSA) of very high shear strength, good peel strength and/or also high moisture vapor transmission rate, the process comprising the steps of: a) forming a first aqueous mixture comprising a hydrophilic stabilizer; b) forming separately a second oil mixture comprising: i) at least one vinyl functional polyurethane (optionally prepared from an isocyanate functional monomer; at least one monol and/or at least one α,β-ethylenically unsaturated monomer ii) optionally at least one hydrocarbon polymer (such as polystyrene); and iii) at least one α,β-ethylenically unsaturated monomer (such as (meth)acrylate or acids thereof; and/or iv) option-=ally at least one hydrophobic stabilizer; where components (ii), (iii) and/or (iv) may optionally be the same; c) mixing the aqueous and oil mixtures together to form a pre-(macro) emulsion; d) generating a stable mini-emulsion there-from optionally by applying high shear to form an aqueous continuous phase and stabilized oil droplets of average diameter from about 10 to about 1000 nm, and e) polymerizing the polymer precursor(s) within the droplets, optionally in the presence of a free radical initiator; to obtain a polymer latex.

    摘要翻译： 描述了一种用于制备具有非常高剪切强度，良好剥离强度和/或高水蒸汽透过速率的混合丙烯酸/聚氨酯压敏粘合剂（PSA）的多步微乳液方法，该方法包括以下步骤： ）形成包含亲水稳定剂的第一含水混合物; b）单独形成第二油混合物，其包含：i）至少一种乙烯基官能聚氨酯（任选地由异氰酸酯官能单体制备;至少一种单醇和/或至少一种α，b-烯属不饱和单体ii）任选地至少 一种烃聚合物（如聚苯乙烯）; 和iii）至少一种α，β-烯键式不饱和单体（例如（甲基）丙烯酸酯或其酸;和/或iv）选择性地 - 至少一种疏水稳定剂; 组分（ii），（iii）和/或（iv）可以任选地相同; c）将水和油混合物混合在一起以形成预（宏观）乳液; d）在其中产生稳定的微乳液，任选地通过施加高剪切以形成平均直径为约10至约1000nm的水性连续相和稳定的油滴，以及e）在液滴内聚合聚合物前体 任选地在存在自由基引发剂的情况下， 以获得聚合物胶乳。