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    Modification of acrylamide polymers
    2.
    发明授权
    Modification of acrylamide polymers 失效
    丙烯酰胺聚合物的改性

    公开(公告)号：US4313863A

    公开(公告)日：1982-02-02

    申请号：US211294

    申请日：1980-11-28

    申请人： Ryoji Handa ,  Norimasa Yoshida ,  Jun Hosoda ,  Akihisa Furuno

    发明人： Ryoji Handa ,  Norimasa Yoshida ,  Jun Hosoda ,  Akihisa Furuno

    IPC分类号： C08F8/00 ,  C08F8/12 ,  C08K5/06 ,  C08L33/00 ,  C08L33/24 ,  C08L33/26

    CPC分类号： C08F8/12 ,  Y10S524/916

    摘要： When an alkaline substance is added to and mixed with aggregates of the mutually adhering blobs of a hydrogel of an acrylamide polymer, (1) a mixing tank in which the portion to be contacted with the hydrogel of an acrylamide polymer is made of a chromium-plated material is used, and (2) to said hydrogel aggregates is added at least one compound represented by the general formulae: ##STR1## wherein R.sub.1 is a residue obtained by removing two OH groups from a saturated dihydric alcohol having 2 to 4 carbon atoms, and R.sub.2 is a residue obtained by removing three OH groups from a saturated trihydric alcohol having 3 to 6 carbon atoms, and having an average molecular weight of 500 to 5,000, whereby the hydrolysis of the acrylamide polymer can be achieved at a high efficiency while preventing the mutual adhesion of the hydrogel aggregates and also reducing the adhesion of the aggregates to the interior surface of the mixing tank to such an extent that there is substantially no problem of adhesion.

    摘要翻译： 当将碱性物质加入并与丙烯酰胺聚合物的水凝胶的相互粘合的团块的混合物混合时，（1）混合罐，其中与丙烯酰胺聚合物的水凝胶接触的部分由铬 - （2）对所述水凝胶聚集体加入至少一种由以下通式表示的化合物：HO [C 3 H 6 O] n H（I）其中R 1是残基 通过从具有2〜4个碳原子的饱和二元醇中除去2个OH基而获得的R 2是通过从具有3〜6个碳原子的饱和三元醇除去3个OH基而得到的残基，平均分子量为500〜 5,000，从而可以高效率地实现丙烯酰胺聚合物的水解，同时防止水凝胶聚集体的相互粘附并且还降低聚集体到混合罐的内表面的粘附程度，使得存在s 基本上没有粘附问题。

    Process for stabilizing aqueous acrylamide solution
    3.
    发明授权
    Process for stabilizing aqueous acrylamide solution 失效
    稳定丙烯酰胺水溶液的方法

    公开(公告)号：US5352828A

    公开(公告)日：1994-10-04

    申请号：US885358

    申请日：1992-05-19

    申请人： Susumu Seki ,  Akihisa Furuno

    发明人： Susumu Seki ,  Akihisa Furuno

    IPC分类号： C07C231/02 ,  C07C231/22 ,  C07C233/09 ,  C08F20/52 ,  C08F20/56 ,  C07C209/90

    CPC分类号： C07C231/22

    摘要： A process for the stabilization of an aqueous acrylamide solution is described which includes adding at least one compound selected from water-soluble monocarboxylic acid salts having at least two carbon atoms to an aqueous solution of acrylamide in an amount of from 20 to 5,000 ppm as acid per acrylamide. According to the present invention, a high purity aqueous acrylamide solution which is markedly stable, even under an iron surface-contacting condition, without causing problems such as the polymerization of acrylamide can be provided by adding a water-soluble monocarboxylic acid salt having at least two carbon atoms.

    摘要翻译： 描述了一种用于稳定丙烯酰胺水溶液的方法，该方法包括将至少一种选自具有至少两个碳原子的水溶性单羧酸盐的化合物加入至丙烯酰胺水溶液中，其量为20-5,000ppm作为酸 每丙烯酰胺。 根据本发明，即使在铁表面接触条件下，也不会引起丙烯酰胺聚合等问题，显着稳定的高纯度丙烯酰胺水溶液可以通过加入至少具有至少一种的水溶性一元羧酸盐 两个碳原子。

    Process for producing partially hydrolyzed polyacrylamide in the presence of alkali metal hydroxide and boric acid
    4.
    发明授权
    Process for producing partially hydrolyzed polyacrylamide in the presence of alkali metal hydroxide and boric acid 失效
    在碱金属氢氧化物和硼酸存在下制备部分水解的聚丙烯酰胺的方法

    公开(公告)号：US3968093A

    公开(公告)日：1976-07-06

    申请号：US469443

    申请日：1974-05-13

    申请人： Masao Hasegawa ,  Akihisa Furuno ,  Haruhiko Ishikawa ,  Yasuo Ogawa

    发明人： Masao Hasegawa ,  Akihisa Furuno ,  Haruhiko Ishikawa ,  Yasuo Ogawa

    IPC分类号： C08F120/56 ,  C08F120/52 ,  C02C1/02 ,  C08F120/70

    CPC分类号： C08F120/56

    摘要： A process for producing a partially hydrolyzed polyacrylamide which has a high molecular weight and high water solubility and can be suitably used as a flocculant for water treatment and a size for paper manufacture comprising polymerizing an aqueous solution of an acrylamide monomer in the presence of an alkali metal hydroxide such as sodium hydroxide and boric acid, whereby a partial hydrolysis of the polymer formed is also conducted substantially simultaneously with the polymerization. In an additional embodiment, a maturing of the polyacrylamide produced can be conducted by continuing to heat the polymer solution to increase the hydrolysis percentage.

    摘要翻译： 一种生产部分水解的聚丙烯酰胺的方法，其具有高分子量和高水溶性，并且可以适合用作水处理的絮凝剂和纸制造的尺寸，包括在碱的存在下聚合丙烯酰胺单体的水溶液 金属氢氧化物如氢氧化钠和硼酸，由此在聚合过程中基本上同时进行形成的聚合物的部分水解。 在另外的实施方案中，所生产的聚丙烯酰胺的成熟可以通过继续加热聚合物溶液以提高水解百分比来进行。

    Process for the preparation of cationic polymers
    5.
    发明授权
    Process for the preparation of cationic polymers 失效
    阳离子聚合物的制备方法

    公开(公告)号：US4514551A

    公开(公告)日：1985-04-30

    申请号：US572753

    申请日：1984-01-23

    申请人： Akihisa Furuno ,  Kenichi Inukai ,  Yasuo Ogawa

    发明人： Akihisa Furuno ,  Kenichi Inukai ,  Yasuo Ogawa

    IPC分类号： B01D21/01 ,  C08F2/00 ,  C08F2/10 ,  C08F2/38 ,  C08F20/00 ,  C08F20/34 ,  C08F20/52 ,  C08F220/56 ,  D21H17/36 ,  D21H17/45

    CPC分类号： D21H17/455 ,  C08F220/56

    摘要： A process for preparing a cationic polymer which comprises polymerizing a monomer mixture containing acrylamide and a cationic alkenyl monomer represented by the general formula: ##STR1## wherein R.sup.1 represents H or CH.sub.3 ; R.sup.2 and R.sup.3 represent independently CH.sub.3 or C.sub.2 H.sub.5 ; R.sup.4 represents H, CH.sub.3, C.sub.2 H.sub.5 or a benzyl group; A represents --OC.sub.n H.sub.2n -- (wherein n=2 or 3), ##STR2## or --NC.sub.n H.sub.2n -- (wherein n=2 or 3); and X.sup.- represents Cl.sup.-, Br.sup.-, I.sup.-, CH.sub.3 SO.sub.4.sup.-, C.sub.2 H.sub.5 SO.sub.4.sup.-, 1/2SO.sub.4.sup.-- or CH.sub.3 COO.sup.-, in the form of a sheet in an aqueous medium, characterized in that the composition ratio of acrylamide/cationic alkenyl monomer is within the range of 95/5 to 5/95, and the polymerization is carried out in the presence of a phosphite. The polymers obtained according to this process are free from insolubles produced under the influence of oxygen.

    摘要翻译： 一种制备阳离子聚合物的方法，其包括聚合含有丙烯酰胺和由以下通式表示的阳离子烯基单体的单体混合物：其中R 1表示H或CH 3; R2和R3独立地表示CH3或C2H5; R4代表H，CH3，C2H5或苄基; A表示-OC n H 2n - （其中n = 2或3），或者-NC n H 2n - （其中n = 2或3）; 和X-表示在水性介质中的片状形式的Cl-，Br-，I-，CH 3 SO 4 - ，C 2 H 5 SO 4 - ，1 / 2SO 4 - 或CH 3 COO-，其特征在于丙烯酰胺/阳离子烯基 单体在95/5〜5/95的范围内，聚合在亚磷酸盐存在下进行。 根据该方法获得的聚合物不含在氧气的影响下产生的不溶物。

    Process for producing water-soluble cationic polymers
    6.
    发明授权
    Process for producing water-soluble cationic polymers 失效
    生产水溶性阳离子聚合物的方法

    公开(公告)号：US4164612A

    公开(公告)日：1979-08-14

    申请号：US847025

    申请日：1977-10-31

    申请人： Naoyuki Suzuki ,  Yoji Wada ,  Akihisa Furuno

    发明人： Naoyuki Suzuki ,  Yoji Wada ,  Akihisa Furuno

    IPC分类号： B01D21/01 ,  C08F2/00 ,  C08F2/04 ,  C08F2/10 ,  C08F2/44 ,  C08F20/00 ,  C08F20/34 ,  C08F18/22 ,  C08F126/06

    CPC分类号： C08F20/34 ,  Y10S526/923

    摘要： In a process for producing a water-soluble polymer in an easily grindable glassy state by subjecting to aqueous solution polymerization a mixture comprising a monomer composed mainly of a vinyl monomer represented by the general formula (I): ##STR1## and water in an amount of 7 to 18% by weight based on the total weight of the monomer and water, a water-soluble salt in a powdery form is added to and dispersed in the polymerization system and the polymerization is carried out in the state that the powdery salt is dispersed, whereby a water-soluble polymer excellent in flocculating action and dissolving workability is obtained.

    摘要翻译： 在通过对水溶液聚合制备水溶性聚合物的方法中，将包含主要由通式（I）表示的乙烯基单体组成的单体：水和水 相对于单体和水的总重量为7〜18重量％，将粉末状的水溶性盐加入到聚合体系中并分散在聚合体系中，聚合反应在 粉状盐分散，得到絮凝作用和溶解作业性优异的水溶性聚合物。

    Metal surfaces coated with aliphatic acids containing 12 carbon atoms or more to eliminate polymer build-up on reactor walls during the polymerization of water-soluble cationic polymers
    8.
    发明授权
    Metal surfaces coated with aliphatic acids containing 12 carbon atoms or more to eliminate polymer build-up on reactor walls during the polymerization of water-soluble cationic polymers 失效
    涂覆有12个碳原子或更多碳原子的脂肪酸的金属表面，以消除水溶性阳离子聚合物聚合过程中反应器壁上的聚合物积聚

    公开(公告)号：US4165419A

    公开(公告)日：1979-08-21

    申请号：US912804

    申请日：1978-06-05

    申请人： Naoyuki Suzuki ,  Yoji Wada ,  Akihisa Furuno ,  Iwao Ohshima ,  Yukio Shibuya

    发明人： Naoyuki Suzuki ,  Yoji Wada ,  Akihisa Furuno ,  Iwao Ohshima ,  Yukio Shibuya

    IPC分类号： C08F2/00 ,  C08F2/10 ,  C08F2/44 ,  C08F20/00 ,  C08F20/34 ,  C08F18/00

    CPC分类号： C08F20/34

    摘要： A method for producing a water-soluble cationic polymer by polymerizing, in the presence of water, a high concentration of (a) at least one vinyl monomer represented by the following general formula (I)ch.sub.2 .dbd.cr.sub.1 coor.sub.2 n.sup..sym. r.sub.3 r.sub.4 r.sub.5 x.sup..crclbar. (i)wherein R.sub.1 is --H or --CH.sub.3 ; R.sub.2 is --CH.sub.2 CH.sub.2 -- or --CH.sub.2 CH(OH)CH.sub.2 --; R.sub.3 and R.sub.4, which may be the same or different, each is --CH.sub.3 or --CH.sub.2 CH.sub.3 ; R.sub.5 is --C.sub.n H.sub.2n+1 where n is 0 or an integer of 1 to 4, --CH.sub.2 C.sub.6 H.sub.5, or --CH.sub.2 COOH; and X is Cl.sup.-, Br.sup.-, 1/2SO.sub.4.sup.-- or CH.sub.3 SO.sub.4.sup.-,or (b) a mixture of (i) at least one vinyl monomer represented by the general formula (I) and (ii) at least one other vinyl monomer copolymerizable therewith, wherein the vinyl monomer represented by the general formula (I) is present in the mixture in a predominant amount, and obtaining a polymer in a lump form, the improvement comprising performing the polymerization in a polymerization zone defined by a metal surface or surfaces, in which the metal surface(s) contacted during the polymerization have been coated with a layer of at least one of a higher aliphatic acid having 12 or more carbon atoms, an ammonium salt of a higher aliphatic acid having 12 or more carbon atoms and/or an alkali metal salt of a higher aliphatic acid having 12 or more carbon atoms.

    摘要翻译： 一种水溶性阳离子聚合物的制备方法，该水溶性阳离子聚合物通过在水存在下聚合高浓度（a）至少一种由以下通式（I）表示的乙烯基单体：CH2 = CR1COOR2N（+）R3R4R5X（ - ） （I）其中R1是-H或-CH3; R2是-CH2CH2-或-CH2CH（OH）CH2-; R 3和R 4可以相同或不同，各自为-CH 3或-CH 2 CH 3; R5是-CnH2n + 1，其中n是0或1-4的整数，-CH2C6H5或-CH2COOH; 和（b）由通式（I）表示的至少一种乙烯基单体和（ⅱ）至少一种其它乙烯基单体的混合物， 可共聚的单体，其中由通式（I）表示的乙烯基单体以主要的量存在于混合物中，并且获得块状聚合物，其改进包括在由金属表面限定的聚合区中进行聚合 或其中金属表面在聚合过程中接触的表面已经涂覆有具有12个或更多个碳原子的高级脂族酸中的至少一种的层，具有12个或更多个碳的高级脂族酸的铵盐 原子和/或具有12个或更多个碳原子的高级脂族酸的碱金属盐。

    Method for preparing acrylamide polymers
    9.
    发明授权
    Method for preparing acrylamide polymers 失效
    制备丙烯酰胺聚合物的方法

    公开(公告)号：US4306048A

    公开(公告)日：1981-12-15

    申请号：US176031

    申请日：1980-08-07

    申请人： Norimasa Yoshida ,  Yasuo Ogawa ,  Ryoji Handa ,  Susumu Seki ,  Jun Hosoda ,  Nobuo Kurashige ,  Akihisa Furuno

    发明人： Norimasa Yoshida ,  Yasuo Ogawa ,  Ryoji Handa ,  Susumu Seki ,  Jun Hosoda ,  Nobuo Kurashige ,  Akihisa Furuno

    IPC分类号： C08K5/13 ,  C08F2/00 ,  C08F2/44 ,  C08F6/00 ,  C08F6/06 ,  C08F6/12 ,  C08F20/56 ,  C08K5/37 ,  C08K5/53 ,  C08L33/00 ,  C08L33/02 ,  C08L33/24 ,  C08L33/26 ,  C08L77/00 ,  C08J3/12

    CPC分类号： C08F6/12

    摘要： In the production of a dried acrylamide polymer by polymerizing, in an aqueous medium, acrylamide alone or a monomer mixture comprising 50 mole % or more of acrylamide and at least one monomer copolymerizable therewith with a radical initiator, and then drying the resulting hydrous acrylamide polymer, the allowing of at least one of the following compounds [I], [II] and [III] to be present in the drying step or a step prior thereto enables the dried acrylamide polymer having a high molecular weight and a good dissolvability in water to be obtained:[I] a non-polymerizable compound having in its molecule at least one group represented by the formula, ##STR1## wherein R.sub.1 is H or an alkyl group having up to 4 carbon atoms, [II] a compound represented by the formula, R.sub.2 --S--C.sub.n H.sub.2n X wherein n is an integer of 1 to 8, R.sub.2 is an alkyl group, an aryl group or --C.sub.n H.sub.2n X, in which X is --OH, --COOH (or its salt), --CN or --CONH.sub.2, and[III] a compound represented by the formula, ##STR2## wherein R.sub.3, R.sub.4 and R.sub.5 are H, alkali metals or alkyl or aryl groups.

    摘要翻译： 在水性介质中单独使用丙烯酰胺或含有50摩尔％以上丙烯酰胺的单体混合物和至少一种可与其自由基引发剂共聚的单体的聚合反应生产干燥的丙烯酰胺聚合物，然后干燥得到的含水丙烯酰胺聚合物 ，允许至少一种以下化合物[I]，[II]和[III]化合物存在于干燥步骤或之前的步骤中，使得干燥的丙烯酰胺聚合物具有高分子量和在水中的良好溶解性 [I]在其分子中具有至少一个由下式表示的基团的非聚合性化合物，其中R 1为H或具有至多4个碳原子的烷基，[II]表示的化合物 其中n为1〜8的整数，R 2为烷基，芳基或-C n H 2n，其中X为-OH，-COOH（或其盐），-CN或 - CONH 2和[III]由下式表示的化合物，其中R 3，R 4和R 3 5是H，碱金属或烷基或芳基。