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    Production process for highly water absorbable polymer
    2.
    发明授权
    Production process for highly water absorbable polymer 失效
    高吸水性聚合物的生产工艺

    公开(公告)号：US4612250A

    公开(公告)日：1986-09-16

    申请号：US710702

    申请日：1985-03-11

    申请人： Hisao Takeda ,  Yasunori Taniguchi

    发明人： Hisao Takeda ,  Yasunori Taniguchi

    IPC分类号： A61L15/60 ,  C08F220/06 ,  B32B27/00

    CPC分类号： C08F220/06 ,  A61L15/60 ,  Y10S521/905 ,  Y10T428/31855

    摘要： Disclosed is a process for preparing water absorbing, cross-linked acrylate resins by aqueous polymerization of (A) acrylic acid neutralized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine; with (B) acrylamide in a mole ratio of 70 to 100 mole percent (A) to 30:0 mole percent (B); and (C) a water miscible or a water soluble polyvinyl monomer in an amount of 0.001 to 0.3 weight percent based on the total weight of (A) and (B). In accordance with one embodiment of the invention, the concentration of monomers (A) plus (B) should be at least 70 percent by weight of the polymerization mixture of (A) plus (B) plus (C) to achieve a substantially dry polymer (less than 15 weight percent water) when polymerization is completed by utilizing the exothermic heat of polymerization and cross-linking to drive off water without the need for additional heating to obtain a dry solid. The addition of polystyrene and/or methylcellulose substantially increases the water absorbing capacity of these polymers.

    摘要翻译： 公开了一种通过（A）丙烯酸的水性聚合制备吸水交联丙烯酸酯树脂的方法，例如用氨和/或苛性碱和/或胺中和的70-100摩尔％ （B）丙烯酰胺，摩尔比为70-100摩尔％（A）至30：0摩尔％（B）; 和（C）基于（A）和（B）的总重量，0.001至0.3重量％的水混溶性或水溶性聚乙烯基单体。 根据本发明的一个实施方案，单体（A）加（B）的浓度应为（A）加（B）加（C）的聚合混合物的至少70重量％，以实现基本上干燥的聚合物 （小于15重量％的水），当聚合完成时，通过利用聚合的放热和交联以驱除水而不需要额外的加热以获得干燥的固体。 聚苯乙烯和/或甲基纤维素的加入显着增加了这些聚合物的吸水能力。

    Process for production of water-soluble polymer dispersion
    3.
    发明授权
    Process for production of water-soluble polymer dispersion 失效
    生产水溶性聚合物分散体的方法

    公开(公告)号：US4929655A

    公开(公告)日：1990-05-29

    申请号：US286976

    申请日：1988-12-20

    申请人： Hisao Takeda ,  Mutsumi Kawano

    发明人： Hisao Takeda ,  Mutsumi Kawano

    IPC分类号： C08F2/10 ,  C08F2/16

    CPC分类号： C08F2/10

    摘要： A process for preparing a water-soluble polymer dispersion is here provided which is characterized by polymerizing water-soluble monomers of 5 to 1000 mole % of a cationic monomer represented by formula (I) defined herein, 0 to 50 mole % of another cationic monomer represented by formula (II) defined herein and 0 to 95 mole % of (meth)acrylamide in the presence of 1 to 10% by weight of an organic high-molecular multivalent cation based on the total weight of the monomers in a multivalent anionic salt aqueous solution having a concentration of 15% by weight or more.

    摘要翻译： 这里提供一种制备水溶性聚合物分散体的方法，其特征在于聚合5至1000摩尔％的由本文定义的式（I）表示的阳离子单体的水溶性单体，0至50摩尔％的另一阳离子单体 由式（II）表示，和0〜95摩尔％的（甲基）丙烯酰胺，在1〜10重量％的有机高分子多价阳离子的存在下，基于多价阴离子盐中单体的总重量 浓度为15重量％以上的水溶液。

    Process for the preparation of dispersions using viscosity-increase inhibitors of water-soluble polymers
    6.
    发明授权
    Process for the preparation of dispersions using viscosity-increase inhibitors of water-soluble polymers 有权
    使用粘度增加的水溶性聚合物抑制剂制备分散体的方法

    公开(公告)号：US06187853B1

    公开(公告)日：2001-02-13

    申请号：US09331031

    申请日：1999-07-06

    申请人： Hisao Takeda ,  Takumi Ohara ,  Mika Suzuki ,  Kenji Sakai

    发明人： Hisao Takeda ,  Takumi Ohara ,  Mika Suzuki ,  Kenji Sakai

    IPC分类号： C08F210

    CPC分类号： C08F20/60 ,  C08F2/10 ,  C08F20/34

    摘要： A process for producing a water-soluble polymer dispersion comprising polymerizing water-soluble monomers having double bonds in an aqueous salt solution that dissolves the monomers but does not dissolve the formed polymer while stirring in the presence of a dispersant composed of a polymer electrolyte soluble in this aqueous salt solution to obtain fine polymer particles dispersed in the aqueous salt solution, characterized by adding at least one viscosity-increase suppressor selected from the group consisting of: (A) a polyvalent carboxylic acid or a salt thereof, (B) a polyvalent phenol, (C) a cyclic compound containing a hydroxyl group and a carboxyl group or a salt thereof, (D) gluconic acid or a salt thereof, (E) a reaction product obtained by reacting methoxyhydroquinone and/or (meth)acrylic cationic monomer with a compound that generates radicals in an oxidizing atmosphere, (F) a reaction product obtained by reacting (meth)acrylic cationic polymer with a compound that generates radicals in an oxidizing atmosphere, (G) a reaction product obtained by reacting (meth)acrylic cationic polymer with an oxidant, and a mixture thereof.

    摘要翻译： 一种水溶性聚合物分散体的制造方法，其特征在于，在溶解单体的水溶液中聚合具有双键的水溶性单体，但是在可溶于聚合物电解质的分散剂存在下搅拌的同时不溶解所形成的聚合物 该盐水溶液得到分散在盐水溶液中的微细聚合物颗粒，其特征在于添加至少一种选自下组的增粘抑制剂：（A）多元羧酸或其盐，（B）多价羧酸 苯酚，（C）含羟基和羧基的环状化合物或其盐，（D）葡萄糖酸或其盐，（E）通过使甲氧基对苯二酚和/或（甲基）丙烯酸阳离子单体 与在氧化气氛中产生自由基的化合物反应，（F）使（甲基）丙烯酸阳离子聚合物与产生 氧化气氛中的自由基，（G）通过（甲基）丙烯酸阳离子聚合物与氧化剂反应获得的反应产物及其混合物。

    Process for preparation of dispersion of water-soluble cationic polymer the dispersion produced thereby and its use
    7.
    发明授权
    Process for preparation of dispersion of water-soluble cationic polymer the dispersion produced thereby and its use 失效
    制备水溶性阳离子聚合物分散体的方法由此制得的分散体及其用途

    公开(公告)号：US5587415A

    公开(公告)日：1996-12-24

    申请号：US502613

    申请日：1995-07-14

    申请人： Hisao Takeda

    发明人： Hisao Takeda

    IPC分类号： C08F2/16 ,  C08F20/34 ,  C08F20/60

    CPC分类号： C08F20/60 ,  C08F20/34

    摘要： A water-soluble cationic (co)polymer dispersion prepared by the polymerization of a specified cationic quaternary monomer, which is obtained by quaternization by use of an alkyl halide, optionally with another cationic monomer and/or (meth)acrylamide, the polymerization being carried out in a salt solution which does not dissolve the resulting (co)polymer, and in the presence of a specific cationic polymer dispersant which is soluble in the salt solution, and its use as a flocculant or a paper chemical are provided.

    摘要翻译： 通过使用烷基卤化物任选地与另外的阳离子单体和/或（甲基）丙烯酰胺季铵化获得的指定的阳离子季铵单体的聚合制备的水溶性阳离子（共）聚合物分散体，进行聚合 在不溶解所得（共）聚合物的盐溶液中，并且在可溶于盐溶液的特定阳离子聚合物分散剂的存在下，提供其作为絮凝剂或纸化学品的用途。

    Process for the preparation of dispersion of water-soluble cationic polymer
    8.
    发明授权
    Process for the preparation of dispersion of water-soluble cationic polymer 失效
    制备水溶性阳离子聚合物分散体的方法

    公开(公告)号：US5006590A

    公开(公告)日：1991-04-09

    申请号：US414174

    申请日：1989-09-28

    申请人： Hisao Takeda ,  Mutsumi Kawano

    发明人： Hisao Takeda ,  Mutsumi Kawano

    IPC分类号： C08F2/10 ,  C08F2/08 ,  C08F2/16 ,  C08F2/44 ,  C08F20/34 ,  C08F20/36 ,  C08F20/52 ,  C08F20/60 ,  C08F220/34 ,  C08F220/60 ,  D21H17/37

    CPC分类号： C08F220/60 ,  C08F220/34

    摘要： The present invention relates to the preparation of a dispersion wherein a copolymer comprising an acrylic monomer containing a dialkylbenzylammonium group is dispersed in an aqueous solution of a salt as fine particle. Two cationic polymers are used in the polymerization of the above monomer in the aqueous solution of a salt. One of the cationic polymers is a (co)polymer comprising an acrylic monomer containing a trialkylammonium group which is soluble both in the aqueous solution of a salt and in water, while the other thereof is a copolymer comprising an acrylic monomer containing a dialkylbenzylammonium group which is soluble in water, but insoluble in the aqueous solution of a salt. The above aqueous solution of a salt is an aqueous solution of a polyvalent anion salt such as sulfate or phosphate. A dispersion of a water-soluble cationic polymer can be prepared by dissolving the above monomer in the aqueous solution and carrying out the polymerization in the presence of the above two polymers.

    摘要翻译： 本发明涉及分散体的制备，其中包含含有二烷基苄基铵基团的丙烯酸单体的共聚物分散在作为细颗粒的盐的水溶液中。 上述单体在盐水溶液中聚合时使用两种阳离子聚合物。 阳离子聚合物之一是包含可溶于盐水溶液和水中的三烷基铵基团的丙烯酸单体的（共）聚合物，而另一种是包含含有二烷基苄基铵基团的丙烯酸单体的共聚物， 溶于水，但不溶于盐的水溶液。 上述盐的水溶液是多价阴离子盐如硫酸盐或磷酸盐的水溶液。 可以通过将上述单体溶解在水溶液中并在上述两种聚合物存在下进行聚合来制备水溶性阳离子聚合物的分散体。

    Production process for highly water absorbable polymer
    9.
    发明授权
    Production process for highly water absorbable polymer 失效

    公开(公告)号：US4525527A

    公开(公告)日：1985-06-25

    申请号：US460037

    申请日：1983-01-21

    申请人： Hisao Takeda ,  Yasunori Taniguchi

    发明人： Hisao Takeda ,  Yasunori Taniguchi

    IPC分类号： A61L15/60 ,  C08F220/06

    CPC分类号： C08F220/06 ,  A61L15/60 ,  Y10S521/905 ,  Y10T428/31855

    摘要： Disclosed is a process for preparing water absorbing, cross-linked acrylate resins by aqueous polymerization of (A) acrylic acid neutralized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine; with (B) acrylamide in a mole ratio of 70 to 100 mole percent (A) to 30:0 mole percent (B); and (C) a water miscible or a water soluble polyvinyl monomer in an amount of 0.001 to 0.3 weight percent based on the total weight of (A) and (B). In accordance with one embodiment of the invention, the concentration of monomers (A) plus (B) should be at least 70 percent by weight of the polymerization mixture of (A) plus (B) plus (C) to achieve a substantially dry polymer (less than 15 weight percent water) when polymerization is completed by utilizing the exothermic heat of polymerization and cross-linking to drive off water without the need for additional heating to obtain a dry solid. The addition of polystyrene and/or methylcellulose substantially increases the water absorbing capacity of these polymers.