Expandable elastomeric material in the presence of water or oil
    21.
    发明授权
    Expandable elastomeric material in the presence of water or oil 有权
    在水或油存在下的可膨胀弹性体材料

    公开(公告)号:US09303096B2

    公开(公告)日:2016-04-05

    申请号:US12799153

    申请日:2010-04-20

    Abstract: 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 Ab comprising a betaine group, optionally other monomers Ba and a small quantity of polyvalent, preferably divalent or trivalent monomers Ca, 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 Ba being between 4/96 and 40/60, preferably 7/93 and 30/70, the molar ratio of the polyvalent, preferably divalent or trivalent monomers Ca 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).

    Abstract translation: 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和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。

    Expandable elastomeric material in the presence of water or oil
    25.
    发明申请
    Expandable elastomeric material in the presence of water or oil 有权
    在水或油存在下的可膨胀弹性体材料

    公开(公告)号:US20110257333A1

    公开(公告)日:2011-10-20

    申请号:US12799153

    申请日:2010-04-20

    Abstract: 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 Ab comprising a betaine group, optionally other monomers Ba and a small quantity of polyvalent, preferably divalent or trivalent monomers Ca, 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 Ba being between 4/96 and 40/60, preferably 7/93 and 30/70, the molar ratio of the polyvalent, preferably divalent or trivalent monomers Ca 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).

    Abstract translation: 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, 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和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。

    Demulsifiers in solvent base for separating emulsions and methods of use
    28.
    发明申请
    Demulsifiers in solvent base for separating emulsions and methods of use 有权
    用于分离乳液的溶剂基质中的破乳剂和使用方法

    公开(公告)号:US20090149557A1

    公开(公告)日:2009-06-11

    申请号:US12319440

    申请日:2009-01-07

    CPC classification number: B01D17/047

    Abstract: Demulsifiers containing an anionic surfactant selected from alkylsulfosuccinates, alkylphosphonic acids, and their salts; a nonionic surfactant selected from ethylene oxide/propylene oxide copolymers, ethoxylated fatty acids of polyethylene glycol, terpene alkoxylates, and modified alkanolamides; and solvent bases comprising blends of dibasic esters. Methods for breaking emulsions using such demulsifiers and solvent bases are also disclosed.

    Abstract translation: 含有选自烷基磺基琥珀酸盐,烷基膦酸及其盐的阴离子表面活性剂的破乳剂; 选自环氧乙烷/环氧丙烷共聚物,聚乙二醇的乙氧基化脂肪酸,萜烯烷氧基化物和改性链烷醇​​酰胺的非离子表面活性剂; 和包含二元酯共混物的溶剂基料。 还公开了使用这种破乳剂和溶剂基来破乳的方法。

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