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    • 1. 发明授权
    • Process to prepare two phase foam compositions and two phase foam
compositions
    • 制备两相泡沫组合物和两相泡沫组合物的方法
    • US5646193A
    • 1997-07-08
    • US560140
    • 1995-11-17
    • Thomas Fairchild BrownscombeRonald Marshall BassPui Kwan WongGeorge Constantine BlytasWilliam Peter GergenMaryanne Mores
    • Thomas Fairchild BrownscombeRonald Marshall BassPui Kwan WongGeorge Constantine BlytasWilliam Peter GergenMaryanne Mores
    • A61F13/15A61L15/42C08J9/28
    • C08J9/283A61F13/15203A61L15/425
    • A process is provided for the production of a porous crosslinked polymeric foam comprising the steps of: (a) providing a first water-in-oil emulsion comprising (i) a first mixture of polymerizable monomers comprising at least one oil-soluble vinyl monomer and from about 2 to about 70 weight percent, based on the mixture, of a multifunctional unsaturated crosslinking monomer, (ii) at least 70 weight percent, based on the emulsion, of water as the internal phase (iii) an effective amount to produce the water-in-oil emulsion of a first surfactant, and (iv) a first polymerization initiator; (b) providing a second water-in-oil emulsion comprising (i) a mixture of polymerizable monomers comprising at least one oil-soluble vinyl monomer and from about 2 to about 70 weight percent, based on the mixture, of a second multifunctional unsaturated crosslinking monomer, (ii) at least 70 weight percent, based on the emulsion, of water as the internal phase (iii) an effective amount to produce the water-in-oil emulsion of a second surfactant, and (iv) a second polymerization initiator; (c) combining the first and second emulsions; and (d) curing said polymerizable monomers under conditions effective to polymerize and crosslink the polymer prior to significant diffusion between the emulsions. Polymeric foams can be prepared by this process that exhibit positive attributes of foams formed by curing of each of the emulsions individually.
    • 提供了一种生产多孔交联聚合物泡沫体的方法,包括以下步骤:(a)提供第一种油包水乳液,其包含(i)包含至少一种油溶性乙烯基单体的可聚合单体的第一混合物和 基于该混合物,约2至约70重量%的多官能不饱和交联单体,(ii)基于乳液的至少70重量%的作为内相的水(iii)有效量的产生 第一表面活性剂的油包水乳液,和(iv)第一聚合引发剂; (b)提供第二种油包水乳液,其包含(i)包含至少一种油溶性乙烯基单体的可聚合单体和基于该混合物的约2-约70重量%的第二多官能不饱和单体的混合物 交联单体,(ii)基于乳液至少70重量%的作为内相的水(iii)有效量的产生第二表面活性剂的油包水乳液,和(iv)第二聚合 发起者 (c)组合第一和第二乳液; 和(d)在有效聚合和交联聚合物的条件下,在乳液显着扩散之前,使所述可聚合单体固化。 聚合物泡沫可以通过这种方法制备,其显示了通过单独固化每种乳液形成的泡沫的阳性。
    • 3. 发明授权
    • Method for recovering water soluble surfactants
    • 回收水溶性表面活性剂的方法
    • US07033504B1
    • 2006-04-25
    • US10130855
    • 2000-11-21
    • George Constantine BlytasVitold Raimond Kruka
    • George Constantine BlytasVitold Raimond Kruka
    • B01D11/04
    • B01D17/047C02F1/26C02F2101/32
    • Disclosed is a method for recovering and re-employing ionic surfactants from solutions, dispersions and emulsions of water and liquid hydrocarbons, by the addition of a second non-aqueous polar phase and an inorganic salt which changes the ionic strength of the surfactant and causes the surfactant to partition principally into the non-aqueous second polar phase. More specifically, the method applies to recovering hydrate growth inhibitor/modifying compounds, with cationic surfactants such as ammonium, phosphonium and sulphonium alkylated compounds from the effluent of hydrocarbon production wells; the effluent including water, hydrate inhibitor compound, at least one additional polar solvent and inorganic salt. Sufficient additional ions of inorganic salt, and if necessary, an alcohol/glycol are added to the effluent to form a second polar phase that is less polar than the aqueous phase, into which the hydrate inhibitor can then dissolve and be separated from the effluent.
    • 公开了一种通过添加第二非水极性相和无机盐从溶液,分散体和水和液体烃的乳液中回收和重新使用离子表面活性剂的方法,其改变了表面活性剂的离子强度,并导致 表面活性剂主要分配到非水的第二极性相中。 更具体地说,该方法适用于从烃生产井的流出物中回收水合物生长抑制剂/改性化合物与阳离子表面活性剂如铵,鏻和锍烷基化化合物; 流出物包括水,水合物抑制剂化合物,至少一种另外的极性溶剂和无机盐。 向流出物中加入足够的无机盐附加离子和必要时的醇/二醇以形成比水相极性低的第二极性相,然后水合物抑制剂可溶解并与流出物分离。