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    • 10. 发明申请
    • PRODUCTION OF POLYMER EMULSIONS
    • 生产聚合物乳液
    • WO1995004767A1
    • 1995-02-16
    • PCT/GB1994001692
    • 1994-08-02
    • ZENECA LIMITEDZENECA RESINS B.V.HADDLETON, David, MarkPADGET, John, ChristopherOVERBEEK, Gerardus, Cornelis
    • ZENECA LIMITEDZENECA RESINS B.V.
    • C08F265/02
    • C08F265/02
    • Process for the production of an aqueous polymer emulsion which process comprises: a) preparing a low molecular weight polymer containing acid-functional groups using a free-radical polymerisation process which employs a free-radical initiator and, for the purpose of controlling molecular weight, a transition metal chelate complex, wherein said low molecular weight polymer has a number average molecular weight within the range of from 500 to 50,000; b) conducting an aqueous emulsion polymerisation process to form an aqueous emulsion of a hydrophobic polymer from at least one olefinically unsaturated monomer, wherein the low molecular weight polymer of step a) is introduced to the aqueous medium of said emulsion polymerisation process before the start of and/or during said emulsion polymerisation process and becomes dissolved or dispersed in said aqueous medium.
    • 制备含水聚合物乳液的方法,该方法包括:a)使用自由基聚合方法制备含有酸官能团的低分子量聚合物,其使用自由基引发剂,并且为了控制分子量, 过渡金属螯合络合物,其中所述低分子量聚合物的数均分子量在500至50,000的范围内; b)进行水性乳液聚合方法以形成来自至少一种烯属不饱和单体的疏水性聚合物的水性乳液,其中步骤a)的低分子量聚合物在开始之前被引入所述乳液聚合方法的水性介质中 和/或在所述乳液聚合过程期间溶解或分散在所述水性介质中。