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    • 3. 发明申请
    • EXPANDABLE ELASTOMERIC MATERIAL IN THE PRESENCE OF WATER OR OIL
    • 在水或油中存在的可膨胀弹性体材料
    • WO2011133214A1
    • 2011-10-27
    • PCT/US2011/000699
    • 2011-04-20
    • RHODIA OPERATIONSADAM, HerveCADIX, ArnaudVUONG, Chi-Thanh
    • ADAM, HerveCADIX, ArnaudVUONG, Chi-Thanh
    • C09K8/28
    • C08F2/32C08F220/56C08G18/69C08L23/06C08L83/04C08L33/26
    • A process for the preparation of an elastomer capable of swelling in oil and/or in water and brine comprising the steps of : a) making an aqueous inverse emulsion of particles of a polymer comprising a betaine group prepared by inverse emulsion polymerization of monomers A b comprising a betaine group, optionally other monomers B a and a small quantity of polyvalent, preferably divalent or trivalent monomers C a , comprised in an aqueous phase dispersed in the form of droplets in a hydrophobic external phase having hydrophobic surfactants, the molar ratio of the monomers Ab to the optional monomers B a being between 4/96 and 40/60, preferably 7/93 and 30/70, the molar ratio of the polyvalent, preferably divalent or trivalent monomers C a per mole of polymer being between 1.5 and 10, preferably between 2 and 4, and b) compounding said elastomer with the aqueous inverse emulsion obtained by step a).
    • 一种制备能够在油和/或水和盐水中溶胀的弹性体的方法,包括以下步骤:a)制备含有通过反相乳液聚合制备的甜菜碱基团的聚合物颗粒的水性反相乳液,所述单体包含 甜菜碱基团,任选的其它单体Ba和少量多价,优选二价或三价单体Ca,其包含在疏水性外相中以水滴形式分散在具有疏水性表面活性剂的水相中,单体Ab与 任选的单体Ba在4/96和40/60之间,优选7/93和30/70,每摩尔聚合物的多价,优选二价或三价单体Ca的摩尔比在1.5至10之间,优选在2和 4,和b)将所述弹性体与通过步骤a)获得的水性反相乳液混合。