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    • 1. 发明授权
    • Process for producing dispersions of water-soluble vinyl polymers and
stabilizer for carrying out the process
    • 用于生产水溶性乙烯基聚合物和稳定剂分散体的方法,用于进行该方法
    • US6075089A
    • 2000-06-13
    • US125181
    • 1998-10-05
    • Werner JaegerArvid ZimmermannMathias HahnVolker HildebrandtKarl Heinz Reichert
    • Werner JaegerArvid ZimmermannMathias HahnVolker HildebrandtKarl Heinz Reichert
    • B01F17/34C08F2/10C08F2/24C08F283/06C08K5/06C08F2/16C08L39/00
    • C08F283/06C08F2/10
    • The present invention concerns a process for producing dispersions of watsoluble 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.
    • PCT No.PCT / DE97 / 00288 Sec。 371日期:1998年10月5日 102(e)日期1998年10月5日PCT提交1997年2月10日PCT公布。 公开号WO97 / 30094 日期:1997年8月21日本发明涉及一种水溶性乙烯基聚合物的分散体的制造方法及其制造方法。 大量使用这种水溶性,特别是阳离子乙烯基聚合物作为工艺加速器,用于在纸,煤和矿石工业,油中分别进行水处理或废水净化中的分离过程 生产或在食品行业,其中包括絮凝,凝结,保留或脱水。 根据本发明,水溶性乙烯基聚合物在本发明的分散稳定剂的存在下是均聚的或共聚合的。 稳定剂由接枝共聚物组成,其主链由聚环氧乙烷及其接枝的阳离子乙烯基单体分支形成。 其中,可以有利地使用阳离子,疏水改性的乙烯基单体。 可以在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,非疏水改性的乙烯基聚合物之间进行共聚。
    • 5. 发明申请
    • Process for preparing a polymer dispersion
    • 制备聚合物分散体的方法
    • US20060229401A1
    • 2006-10-12
    • US11450338
    • 2006-06-12
    • Oliver StruckChristian PrzybylaAchim SiegerMathias HahnDirk RuppeltWerner Jaeger
    • Oliver StruckChristian PrzybylaAchim SiegerMathias HahnDirk RuppeltWerner Jaeger
    • C08K3/20
    • C08F2/10C08F2/24
    • The present invention relates to a process for preparing an aqueous polymer dispersion comprising: preparing a dispersant co-polymer of a monomer mixture (M) by polymerising the monomer mixture (M) in a reaction medium which is substantially free from organic solvents and/or substantially free from monomers which are not soluble in water, the monomer mixture (M) comprises at least one cationic vinyl monomer (m3) and at least one monomer (m4) which is tetrahydrofurfuryl acrylate, tetrahydrofurfuryl methacrylate, or a monomer of the general formula (I): wherein R1 is hydrogen or methyl, R2 is hydrogen or C1-C2 alkyl, R3 is hydrogen, C1-C4 alkyl, phenyl, or benzyl, n=1 to 4, and x=1 to 50, and then, polymerising one or more water-soluble monomers (m) in an aqueous solution of a salt in the presence of the obtained dispersant polymer. The invention also relates to an aqueous polymer dispersion, use of the dispersion and a process for the production of paper.
    • 本发明涉及一种制备含水聚合物分散体的方法,其包括:通过在基本上不含有机溶剂的反应介质中聚合单体混合物(M)和/或形成单体混合物(M)来制备单体混合物(M)的分散剂共聚物 基本上不含不溶于水的单体,单体混合物(M)包含至少一种阳离子乙烯基单体(m 3/3)和至少一种单体(m 4) ),其是丙烯酸四氢糠酯,甲基丙烯酸四氢糠酯或通式(I)的单体:其中R 1是氢或甲基,R 2是氢或C