首页> 外国专利> STABIL VATTEN-I-OLJA-EMULSION ANVAENDBAR VID KLARNING AV VATTENSYSTEM SAOSOM HJAELPMEDEL VID BORRNING AV GYTTJIG MARK OCH VID SECONDARY TYPE OF VARIABLE

STABIL VATTEN-I-OLJA-EMULSION ANVAENDBAR VID KLARNING AV VATTENSYSTEM SAOSOM HJAELPMEDEL VID BORRNING AV GYTTJIG MARK OCH VID SECONDARY TYPE OF VARIABLE

机译:稳定的油包水乳液,适用于水系统的清洁,以作为泥浆地面钻探和第二类变量的辅助工具

摘要

1384470 Water-in-oil emulsions NALCO CHEMICAL CO 17 May 1972 [12 July 1971] 23208/72 Heading C3P A water-in-oil emulsion comprises an inert hydrophobic liquid ranging from 5À0 to 26% by weight of the emulsion and an aqueous phase excluding emulsifier ranging from 74 to 95% by weight of the emulsion which phase comprises a synthetic water soluble vinyl addition polymer having a concentration between 20 and 50% by weight of the emulsion and water ranging between 23 and 45% by weight of the emulsion; and additionally a water-in-oil emulsifying agent having a concentration between 0À1 and 30% by weight of the emulsion. The emulsion may be prepared by inverse emulsion polymerization using a water-in-oil polymerization mixture of the appropriate composition. The preferred hydrophobic liquid is a branched-chain isoparaffinic solvent. Examples describe the copolymerization of acrylamide with acrylic or methacrylic acid and the homopolymerization of dimethylaminoethyl methacrylate and styrene sulphonic acid. Sorbitan monostearate is used as the emulsifier and azobis-(isobutyronitrile) as the catalyst. The emulsion may be inverted in water by the use of a surfactant to form a solution of the polymer.
机译:1384470油包水乳液NALCO CHEMICAL CO 1972年5月17日[1971年7月12日] 23208/72标题C3P油包水乳液包含惰性疏水性液体,占乳液重量的5-0%至26%,并包含水相不包括占乳液重量的74-95%的乳化剂,该相包含浓度为乳液重量的20-50%的合成水溶性乙烯基加成聚合物和占乳液重量的23-45%的水;另外,油包水型乳化剂的浓度为乳液重量的0-1%至30%。可以通过使用适当组成的油包水聚合混合物通过反相乳液聚合来制备乳液。优选的疏水性液体是支链异链烷烃溶剂。实施例描述了丙烯酰胺与丙烯酸或甲基丙烯酸的共聚以及甲基丙烯酸二甲基氨基乙基酯和苯乙烯磺酸的均聚。山梨糖醇单硬脂酸酯用作乳化剂,偶氮双-(异丁腈)用作催化剂。乳液可通过使用表面活性剂在水中转化以形成聚合物的溶液。

著录项

  • 公开/公告号FI56539B

    专利类型

  • 公开/公告日1979-10-31

    原文格式PDF

  • 申请/专利权人 NALCO CHEMICAL CO;

    申请/专利号FI19720001523

  • 申请日1972-05-31

  • 分类号C08F2/32;C08F20/56;C08F112/14;C08F120/34;C08F20/06;C08F20/14;

  • 国家 FI

  • 入库时间 2022-08-22 20:46:10

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