MINIEMULSION POLYMERIZATION TO PREPARE DRAG REDUCERS
    35.
    发明公开
    MINIEMULSION POLYMERIZATION TO PREPARE DRAG REDUCERS 有权
    微乳液聚合法制备减阻剂

    公开(公告)号:EP2528951A1

    公开(公告)日:2012-12-05

    申请号:EP11737595.6

    申请日:2011-01-26

    IPC分类号: C08F2/32

    CPC分类号: C08F2/22

    摘要: A method of producing a polymer latex drag reducer. The method begins by forming an aqueous solution comprising a surfactant, a buffer and water. The method then forms an organic solution comprising a monomer and a co-stabilizer. The aqueous solution and the organic solution are mixed to form an emulsion. The emulsion is then subjecting to a high shear device to produce a miniemulsion, wherein the monomers are broken into small droplets followed by polymerizing the miniemulsion with the addition of an initiator, wherein a nucleation occurs in the small monomer droplets.

    摘要翻译: 一种生产聚合物胶乳减阻剂的方法。 该方法首先形成包含表面活性剂,缓冲剂和水的水溶液。 然后该方法形成包含单体和助稳定剂的有机溶液。 将水溶液和有机溶液混合形成乳液。 然后将乳液置于高剪切装置中以制备细乳液,其中将单体破碎成小液滴,随后通过添加引发剂使细乳液聚合,其中在小单体液滴中发生成核。

    Modified latex drag reducer
    36.
    发明公开
    Modified latex drag reducer 有权
    改性乳胶减阻剂

    公开(公告)号:EP2527714A1

    公开(公告)日:2012-11-28

    申请号:EP12181641.7

    申请日:2005-12-19

    IPC分类号: F17D1/17

    摘要: A modified latex drag reducer and methods of making and using the drag reducer in order to reduce friction losses resulting from turbulent fluid flow through a conduit. Particularly, the modified latex drag reducer is formed from an initial latex which is a product of an emulsion polymerization reaction. The initial latex is then modified, preferably by admixing with at least one low HLB surfactant or at least one solvent, or both, to form a modified latex with an enhanced dissolution rate in a hydrocarbon stream over the initial latex.

    摘要翻译: 一种改进的胶乳减阻剂以及制造和使用该减阻剂的方法,以减少由流过导管的湍流流体引起的摩擦损失。 特别地,改性胶乳减阻剂由作为乳液聚合反应产物的初始胶乳形成。 然后对初始胶乳进行改性,优选通过与至少一种低HLB表面活性剂或至少一种溶剂或两者混合以形成在初始胶乳上的烃流中溶解速率提高的改性胶乳。