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    Method for producing a water-absorbent resin
    1.
    发明授权
    Method for producing a water-absorbent resin 有权
    吸水性树脂的制造方法

    公开(公告)号：US08859700B2

    公开(公告)日：2014-10-14

    申请号：US13812695

    申请日：2011-07-20

    申请人： Hideki Yokoyama ,  Sachi Kikuno ,  Atsushi Heguri ,  Nobuhiro Maeda

    发明人： Hideki Yokoyama ,  Sachi Kikuno ,  Atsushi Heguri ,  Nobuhiro Maeda

    IPC分类号： C08F2/20 ,  C08F2/32 ,  A61L15/24 ,  C08F2/18 ,  C08F2/00 ,  C08F220/06 ,  A61L15/60 ,  C08F2/10 ,  C08F2/24 ,  C08F4/04 ,  C08L33/08

    CPC分类号： C08F2/10 ,  A61L15/24 ,  A61L15/60 ,  C08F2/001 ,  C08F2/18 ,  C08F2/20 ,  C08F2/24 ,  C08F2/32 ,  C08F4/04 ,  C08F220/06 ,  C08L33/08 ,  Y10S526/91 ,  Y10S526/911

    摘要： A method for producing a water-absorbent resin having a further reduced odor as compared with a water-absorbent resin obtained by a conventional method as well as a water-absorbent resin produced by the same method, by maintaining the addition rate V from the pouring nozzle for the aqueous solution of the water-soluble ethylenically unsaturated monomer in a polymerization reaction tank not more than 0.30 [min−1], in the first stage polymerization step which is within the step of the conventional method upon performing multi-stages such as two or more stages of reversed-phase suspension polymerizations in a method for producing a water-absorbent resin, and thereby by being able to reduce the amount of the petroleum hydrocarbon dispersion medium remaining in the above water-absorbent resin.

    摘要翻译： 与通过常规方法获得的吸水性树脂相比，具有进一步降低气味的吸水性树脂的制造方法以及通过相同方法制备的吸水性树脂，通过保持来自浇注的添加率V 在聚合反应槽中的水溶性烯键式不饱和单体的水溶液的喷嘴在不大于0.30 [min -1]的情况下，在第一阶段聚合步骤中，在进行多阶段的步骤中的第一阶段聚合步骤，例如 在吸水性树脂的制造方法中，由于能够减少残留在上述吸水性树脂中的石油烃分散介质的量，反相悬浮聚合的两个阶段或更多阶段。

    Method for producing peroxydicarbonates and their use in the radical polymerization of monomers
    2.
    发明授权
    Method for producing peroxydicarbonates and their use in the radical polymerization of monomers 有权

    公开(公告)号：US06770719B2

    公开(公告)日：2004-08-03

    申请号：US10132582

    申请日：2002-04-25

    申请人： Ross James Cozens

    发明人： Ross James Cozens

    IPC分类号： C08F434

    CPC分类号： C08F4/34 ,  C07C407/00 ,  C08F12/04 ,  Y10S526/91 ,  Y10S526/911 ,  Y10S526/932 ,  C07C409/32

    摘要： A process for producing peroxydicarbonates comprising first reacting at least one inorganic peroxide with at least one alkali metal hydroxide to form at least one alkali metal peroxide. The at least one alkali metal peroxide is added to a mixture of at least one haloformate, at least one dispersant and water. The mixture is homogenized during the entire reaction to form a peroxydicarbonate. The peroxydicarbonate is dispersed as small droplets of from 1 to 10 microns in size in the aqueous mixture. The entire mixture is added to a polymerization reactor containing an ethylenically unsaturated monomer. The peroxydicarbonate functions as the free radical initiator to polymerize the monomer. The peroxydicarbonate is substantially free of organic solvents and plasticizers. The resulting polymers are of high quality.

    Method for producing stable, dilute, aqueous, emulsified peroxydicarbonates by homogenization
    3.
    发明授权
    Method for producing stable, dilute, aqueous, emulsified peroxydicarbonates by homogenization 有权
    通过均化生产稳定，稀释，水性，乳化的过氧化二碳酸酯的方法

    公开(公告)号：US06433208B1

    公开(公告)日：2002-08-13

    申请号：US09433907

    申请日：1999-11-04

    申请人： Ross James Cozens

    发明人： Ross James Cozens

    IPC分类号： C07F438

    CPC分类号： C08F4/34 ,  C07C407/00 ,  C08F12/04 ,  Y10S526/91 ,  Y10S526/911 ,  Y10S526/932 ,  C07C409/32

    摘要： A process for producing peroxydicarbonates comprising first reacting at least one inorganic peroxide with at least one alkali metal hydroxide to form at least one alkali metal peroxide. The at least one alkali metal peroxide is added to a mixture of at least one haloformate, at least one dispersant and water. The mixture is homogenized during the entire reaction to form a peroxydicarbonate. The peroxydicarbonate is dispersed as small droplets of from 1 to 10 microns in size in the aqueous mixture. The entire mixture is added to a polymerization reactor containing an ethylenically unsaturated monomer. The peroxydicarbonate functions as the free radical initiator to polymerize the monomer. The peroxydicarbonate is substantially free of organic solvents and plasticizers. The resulting polymers are of high quality.

    摘要翻译： 一种生产过氧化二碳酸酯的方法，包括首先使至少一种无机过氧化物与至少一种碱金属氢氧化物反应以形成至少一种碱金属过氧化物。 将至少一种碱金属过氧化物加入至少一种卤代甲酸酯，至少一种分散剂和水的混合物中。 在整个反应期间将混合物均质化以形成过氧化二碳酸酯。 过氧化二碳酸酯在水性混合物中分散成1至10微米的小液滴。 将整个混合物加入到含烯属不饱和单体的聚合反应器中。 过氧化二碳酸酯用作自由基引发剂以使单体聚合。 过氧化二碳酸酯基本上不含有机溶剂和增塑剂。 所得聚合物质量高。

    Aqueous emulsion
    4.
    发明授权
    Aqueous emulsion 失效
    水乳液

    公开(公告)号：US5599870A

    公开(公告)日：1997-02-04

    申请号：US407670

    申请日：1995-03-21

    申请人： Masato Nakamae ,  Naoki Fujiwara ,  Kazutoshi Terada ,  Daisuke Miyake ,  Ken Yuki ,  Toshiaki Sato ,  Hitoshi Maruyama

    发明人： Masato Nakamae ,  Naoki Fujiwara ,  Kazutoshi Terada ,  Daisuke Miyake ,  Ken Yuki ,  Toshiaki Sato ,  Hitoshi Maruyama

    IPC分类号： B01F17/52 ,  C08F2/30 ,  C08L29/00 ,  C09J133/04 ,  C08L29/04

    CPC分类号： C08F2/30 ,  C09J133/04 ,  C08L29/00 ,  Y10S516/06 ,  Y10S526/911 ,  Y10S526/912

    摘要： The present invention relates to an aqueous emulsion comprising a dispersant of a modified polyvinyl alcohol with an ethylene unit content of 2 to 9 mol % and a degree of hydrolysis of at least 95 mol %, a dispersoid of a polymer of an ethylenically unsaturated monomer, and a ratio (.eta.2 rpm/.eta.20 rpm) of Brookfield viscosity at 30.degree. C., 2 rpm (.eta.2 rpm) as against Brookfield viscosity at 30.degree. C., 20 rpm (.eta.20 rpm) being 1 to 1.8 when the latter viscosity (.eta.20 rpm) is adjusted to 5,000 to 10,000 mPa.multidot.S.The aqueous emulsion according to the present invention is excellent in structural viscosity (flowability, high speed application performance), provides coated layers with high water resistance and low-temperature stability, and can be suitably used extensively as an adhesive for paper, wood and plastics, as a binder for impregnated paper and non-woven products, as an additive for mortar, as a paint, and in paper and fiber processings.

    摘要翻译： 本发明涉及含有乙烯单元含量为2〜9mol％，水解度为95mol％以上的改性聚乙烯醇的分散剂，烯键式不饱和单体的聚合物的分散体， 并且在30℃下，Brookfield粘度在30℃，2rpm（eta 2rpm）下的Brookfield粘度与20℃下的Brookfield粘度（20rpm）的比（η2rpm /η20rpm）为1至1.8当 将后一粘度（η20rpm）调节至5,000至10,000mPaxS。 本发明的水性乳液的结构粘度（流动性，高速涂布性）优异，可提供耐水性和低温稳定性的涂布层，可广泛适用于纸，木材，塑料的粘合剂 作为浸渍纸和无纺布产品的粘合剂，作为砂浆添加剂，作为涂料，以及纸和纤维加工。

    Process for producing monodispersed vinyl polymer fine particles
    6.
    发明授权
    Process for producing monodispersed vinyl polymer fine particles 失效
    单分散乙烯基聚合物微粒的制造方法

    公开(公告)号：US4935469A

    公开(公告)日：1990-06-19

    申请号：US152003

    申请日：1988-02-03

    申请人： Yutaka Akasaki ,  Naoya Yabuuchi ,  Tatsuro Ohki

    发明人： Yutaka Akasaki ,  Naoya Yabuuchi ,  Tatsuro Ohki

    IPC分类号： C08F2/26 ,  C08F4/40 ,  C08F257/02 ,  C08F265/06 ,  C08F290/06

    CPC分类号： C08F257/02 ,  C08F265/06 ,  C08F290/068 ,  Y10S526/909 ,  Y10S526/911

    摘要： A process for producing monodispersed fine particles of a vinyl polymer is disclosed, which comprises polymerizing monomers containing at least one vinyl monomer selected from the group consisting of aromatic vinyl compounds, acrylic esters, and a methacrylic ester in the presence of (1) a surface active agent represented by formula (I) ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, each represents a substituted or unsubstituted alkyl group having from 4 to 8 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted cyclohexyl group and M represents an alkali metal, (2) from 10.sup.-3 to 10.sup.-1 mol/l of a persulfate as a polymerization initiator, and (3) from 10.sup.-4 to 10.sup.-2 mol/l of a divalent metal sulfate as an electrolyte. Monodispersed vinyl polymer fine particles having a particle size of 1 .mu.m or greater with a very narrow size distribution are obtained.

    摘要翻译： 公开了一种生产乙烯基聚合物的单分散细颗粒的方法，该方法包括在（1）表面存在下聚合含有至少一种选自芳族乙烯基化合物，丙烯酸酯和甲基丙烯酸酯的乙烯基单体的单体 式（I）表示的活性剂其中R 1和R 2可以相同或不同，表示取代或未取代的具有4-8个碳原子的烷基，取代或未取代的苯基， 或取代或未取代的环己基，M表示碱金属，（2）10-3〜10-1mol / l作为聚合引发剂的过硫酸盐，（3）10-4〜10-2mol / 1的二价金属硫酸盐作为电解质。 获得具有非常窄尺寸分布的粒径为1μm以上的单分散乙烯基聚合物微粒。

    Polymerization process for aqueous polymer dispersions of vinyl esters and ethylenic monomers
    8.
    发明授权
    Polymerization process for aqueous polymer dispersions of vinyl esters and ethylenic monomers 失效
    乙烯基酯和乙烯单体的聚合物水分散体的聚合方法

    公开(公告)号：US4532295A

    公开(公告)日：1985-07-30

    申请号：US625672

    申请日：1984-06-28

    申请人： Hartmut Brabetz ,  Herbert Eck ,  Reinhard Jira ,  Heinrich Hopf

    发明人： Hartmut Brabetz ,  Herbert Eck ,  Reinhard Jira ,  Heinrich Hopf

    IPC分类号： C08L31/00 ,  C08F2/00 ,  C08F2/16 ,  C08F2/20 ,  C08F2/44 ,  C08F4/34 ,  C08F4/40 ,  C08J3/02 ,  C08L31/04 ,  C08F210/02 ,  C04B13/24 ,  C09J3/14

    CPC分类号： C08F2/20 ,  Y10S526/91 ,  Y10S526/911 ,  Y10S526/915

    摘要： A process for the preparation of aqueous polymer dispersions comprising polymerizing vinyl esters and up to 50% by weight of the total monomer of compounds with unsaturated ethylenic bonds at a temperature of 10.degree. to 100.degree. C. in the presence of an at least partially water-soluble free-radical initiator and at least one starch member of the group consisting of cyanalkylated starch, hydroxyalkylated starch and carboxyalkylated starch and optionally present conventional adjuvants with the starting mixture containing not more than one-third of the total monomers and the remaining monomers being added by metering during the polymerization, the initiators being at least one member of the group consisting of hydrogen peroxide and organic hydroperoxides in an amount of at least 30 mmol per kg of total monomer mixture and optionally present water-soluble reducing agent and the amount of starch being at least 1% by weight based on the total monomer weight.

    摘要翻译： 一种制备含水聚合物分散体的方法，包括在至少部分水存在下，在10-100℃温度下使乙烯基酯和至多50重量％的具有不饱和烯键的化合物的总单体聚合 可溶的自由基引发剂和由氰烷基化淀粉，羟烷基化淀粉和羧烷基化淀粉组成的组中的至少一种淀粉成分，以及任选存在的起始混合物的起始混合物含有不超过总单体的三分之一，其余单体为 在聚合过程中通过计量加入，引发剂为至少一种由过氧化氢和有机氢过氧化物组成的组，其量为至少30mmol / kg总单体混合物和任选存在的水溶性还原剂， 淀粉基于单体总重量为至少1重量％。

    Polymer dispersions and their preparation
    9.
    发明授权
    Polymer dispersions and their preparation 失效
    聚合物分散体及其制备

    公开(公告)号：US4528321A

    公开(公告)日：1985-07-09

    申请号：US595137

    申请日：1984-03-30

    申请人： Adrian S. Allen ,  Peter Flesher

    发明人： Adrian S. Allen ,  Peter Flesher

    IPC分类号： C08F2/00 ,  C08F2/32 ,  C08K5/05 ,  C08K5/06 ,  C08L33/00 ,  C08L35/00

    CPC分类号： C08F2/32 ,  Y10S526/91 ,  Y10S526/911

    摘要： A dispersion of water soluble or water swellable polymer in water immiscible liquid is made by reverse phase polymerization utilizing a dispersing system comprising a polymerization stabilizer and the resulting dispersion, optionally after dehydration, may be distributed into water utilizing a distributing system. The dispersing system or the distributing system, or both, includes at least one non-ionic compound selected from C.sub.6-12 alkanols, C.sub.4-12 alkylene glycol monoethers and their C.sub.1-4 alkanoates, C.sub.6-12 polyalkylene glycol monoethers and their C.sub.1-4 alkanoates and benzyl alcohol. Novel dispersions are made by reverse phase polymerization and, in particular, include a non-ionic compound selected from C.sub.4-12 alkylene glycol monoethers, their C.sub.1-4 alkanoates and C.sub.6-12 polyalkylene glycol monoethers and their C.sub.1-4 alkanoates. When the polymer is water soluble a solution of it in water can be made by distributing the dispersion into water.

    摘要翻译： 通过使用包含聚合稳定剂的分散系统的反相聚合制备水溶性或水溶胀性聚合物在水不混溶液体中的分散体，并且任选脱水后所得的分散体可以使用分配系统分配到水中。 分散系统或分配系统或两者包括至少一种选自C 6-12链烷醇，C 4-12亚烷基二醇单醚及其C 1-4链烷酸酯的非离子化合物，C 6-12聚亚烷基二醇单醚及其C 1-4 链烷酸酯和苄醇。 新型分散体是通过反相聚合制备的，特别是包括选自C 4-12亚烷基二醇单醚，其C 1-4链烷酸酯和C 6-12聚亚烷基二醇单醚及其C 1-4链烷酸酯的非离子化合物。 当聚合物是水溶性时，其溶液可以通过将分散体分配到水中来制备。