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    • 6. 发明申请
    • PROCESS FOR PRODUCING DISPERSIONS OF WATER-SOLUBLE VINYL POLYMERS AND STABILIZER FOR CARRYING OUT THE PROCESS
    • 用于生产分散体水的乙烯基聚合物和稳定剂用于实施过程
    • WO1997030094A2
    • 1997-08-21
    • PCT/DE1997000288
    • 1997-02-10
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.JAEGER, WernerZIMMERMANN, ArvidHAHN, MathiasHILDEBRANDT, VolkerREICHERT, Karl, Heinz
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    • C08F02/10
    • C08F283/06C08F2/10
    • The present invention concerns a process for producing dispersions of water-soluble vinyl polymers and a stabilizer for carrying out this process. Such water-soluble, particularly cationic vinyl polymers, are employed on a large scale as process expediters for carrying out, for instance, separating processes in water treatment or waste water purification, respectively, in the paper, coal and ore industries, in oil production or also in the food stuff industry, among others, for floculation, coagulation, retention or dewatering. According to the present invention, water soluble vinyl polymers are homo- or copolymerized in the presence of a dispersion stabilizer of the invention. The stabilizer consists of a graft copolymer whose backbone is formed by polyethylene oxide and its grafted branches of cationic vinyl monomers. Among others, cationic, hydrophobically modified vinyl monomers can be advantageously employed. Copolymerizations can be carried out between cationic or non-ionic hydrophobically modified vinyl polymers and cationic or non-ionic, non-hydrophobically modified vinyl polymers.
    • 本发明涉及一种用于生产水溶性乙烯基聚合物的分散体和用于实施该方法的稳定剂的方法。 这样的水溶性,特别是阳离子乙烯基聚合物在技术上是在大规模作为加工助剂用于水处理或废水净化分离方法的实施例,在纸,煤和矿石行业,石油生产中,甚至在食品工业中,絮凝,凝结除其他外 ,保留或引流使用。 根据本发明,水溶性乙烯基聚合物是根据本发明的或共聚的在分散稳定剂的存在下的自由基均聚。 该稳定剂包括一种接枝共聚物,其聚氧化乙烯的主链,并且其接枝支链选自阳离子乙烯基单体形成的。 有利的是,除其他外,均聚 阳离子中,使用疏水改性的乙烯基单体。 共聚可阳离子或非离子疏水改性的乙烯基聚合物,和阳离子或非离子疏水改性的乙烯基聚合物之间有利地进行。