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    Preparation of stable water-in-oil emulsions of hydrolyzed polymers of N-vinylamides and their use
    2.
    发明授权
    Preparation of stable water-in-oil emulsions of hydrolyzed polymers of N-vinylamides and their use 失效
    N-乙烯基酰胺水解聚合物的稳定的油包水乳液的制备及其用途

    公开(公告)号：US5008321A

    公开(公告)日：1991-04-16

    申请号：US438034

    申请日：1989-11-20

    申请人： Heinrich Hartmann ,  Walter Denzinger ,  Michael Kroener ,  Norbert Sendhoff ,  Enrique Freudenberg

    发明人： Heinrich Hartmann ,  Walter Denzinger ,  Michael Kroener ,  Norbert Sendhoff ,  Enrique Freudenberg

    IPC分类号： B01F17/42 ,  C08F2/32 ,  C08F8/12 ,  C08F26/00 ,  C08F26/02 ,  D21F1/66 ,  D21H17/34

    CPC分类号： C08F8/12 ,  D21H17/55 ,  D21H21/10 ,  C08F2800/20 ,  C08F2810/50

    摘要： Stable water-in-oil emulsions of hydrolyzed polymers of N-vinylamides of the formula ##STR1## where R and R.sup.1 are each H or C.sub.1 -C.sub.6 -alkyl are prepared by polymerization of a compound of the formula I alone or as a mixture with other monoethylenically unsaturated monomers, in the form of a water-in-oil emulsion, to give a water-in-oil polymer emulsion, and subsequent hydrolysis of the polymer, by a process in which hydrolysis of the polymer in the form of the water-in-oil polymer emulsion is carried out in the presence of an acid or base and of from 1 to 30% by weight, based on the polymer, of an emulsifier which is obtainable by(A) reacting a C.sub.10 -C.sub.22 -fatty alcohol with epichlorohydrin in a molar ratio of from 1:0.5 to 1:1.5 to give a glycidyl ether,(B) reacting the glycidyl ether with (1) a saturated C.sub.2 -C.sub.6 -alcohol containing from 2 to 6 OH groups or (2) its monoether with a C.sub.10 -C.sub.22 -fatty alcohol, in a molar ratio of glycidyl ether to (1) or (2) of from 1:0.5 to 1:6, in the presence of an acid or base, and(C) alkoxylating the reaction product from (B) with one or more C.sub.2 -C.sub.4 -alkylene oxides in a molar ratio of from 1:1 to 1:6.The polymer emulsions obtainable in this manner are used as drainage aids, retention aids and flocculants in the making of paper and paper products.

    摘要翻译： 式（I）的N-乙烯基酰胺的水解聚合物的稳定的油包水乳液，其中R和R 1各自为H或C 1 -C 6 - 烷基，其通过将式I化合物单独或作为 与油包水乳液形式的其它单烯键式不饱和单体的混合物，通过以下形式的水解方法得到油包水聚合物乳液，并随后水解聚合物 的油包水聚合物乳液在酸或碱的存在下进行，并且以聚合物为基础计，为1至30重量％的乳化剂，其可通过（A）使C10-C22 - 醇与摩尔比为1:0.5至1:1.5的醇，得到缩水甘油醚，（B）使缩水甘油醚与（1）含有2-6个OH基团的饱和C 2 -C 6醇反应，或 （2）其单醚与C 10 -C 22脂肪醇，其缩水甘油醚与（1）或（2）的摩尔比为1:0.5至1:6，在存在o （C）将（B）的反应产物与一种或多种摩尔比为1:1至1:6的C 2 -C 4 - 氧化烯烷氧基化。 以这种方式获得的聚合物乳液可用作造纸和纸制品中的助滤剂，助留剂和絮凝剂。