Process for producing acid-type maleic acid polymer and water-treating
agent and detergent additive containing said polymer
    2.
    发明授权
    Process for producing acid-type maleic acid polymer and water-treating agent and detergent additive containing said polymer 失效
    制备含酸性马来酸聚合物和水处理剂和含有所述聚合物的洗涤剂添加剂的方法

    公开(公告)号:US5135677A

    公开(公告)日:1992-08-04

    申请号:US629037

    申请日:1990-12-19

    摘要: The present invention relates to a process for producing an acid-type polymaleic acid and acid-type maleic acid copolymer and also to the usage of the acid-type polymaleic acid and acid-type maleic acid copolymer produced by this process.According to the process of the present invention, the acid-type polymaleic acid and acid-type maleic acid copolymer, which are superior as a water-treating agent and detergent additive, are produced by polymerization of acid-type monomers in an aqueous solution. The process is simple and yields a polymer having a low molecular weight and a narrow molecular-weight distribution. The process permits one to economically produce the acid-type polymaleic acid and acid-type maleic acid copolymer which has good quality and outstanding performance as a water-treating agent etc. Thus the invention is a great boon to the industrial field of water treatment.

    摘要翻译: 本发明涉及一种酸型聚马来酸和酸式马来酸共聚物的制备方法,还涉及通过该方法生产的酸型聚马来酸和酸型马来酸共聚物的用途。 根据本发明的方法,作为水处理剂和洗涤剂添加剂优异的酸型聚马来酸和酸式马来酸共聚物是通过在水溶液中聚合酸型单体制备的。 该方法简单,并产生具有低分子量和窄分子量分布的聚合物。 该方法允许经济地生产作为水处理剂等具有优良品质和优异性能的酸型聚马来酸和酸型马来酸共聚物。因此,本发明对水处理工业领域是一个巨大的福音。

    Drilling fluid additives
    3.
    发明授权
    Drilling fluid additives 失效
    钻井液添加剂

    公开(公告)号:US5403821A

    公开(公告)日:1995-04-04

    申请号:US140884

    申请日:1993-10-25

    CPC分类号: C08F220/04 C09K8/24

    摘要: This invention provides a drilling fluid containing additives composed of copolymers which are obtainable by an industrially favorable process and superior in heat-resisting property. Even though the additives are used in a relatively small amount, such an amount sufficiently prevents changes in the properties of drilling fluid due to various kinds of hard water components being contained in underground water or cement as well as due to sea water, and the additives are able to display the properties of drilling fluid constantly regardless of presence or absence of salts.Drilling fluid additives of the present invention are composed of a water-soluble copolymer (A) having an average molecular weight of 1,000-50,000. The water soluble copolymer (A) is composed of 40-99.5 mole percent of an unsaturated carboxylic acid monomer (I), as shown in the following general formula (I), and 0.5-60 mole percent of an unsaturated (meth)allylether monomer (II), as shown in the general formula (II). ##STR1## In the formula (I), each of A.sup.1 and A.sup.2 independently represents hydrogen, methyl, or --COOX.sup.2 and A.sup.1 and A.sup.2 are not COOX.sup.2 at the same time. A.sup.3 represents hydrogen, methyl, or --CH.sub.2 COOX.sup.3 and, in a case that A.sup.3 is --CH.sub.2 COOX.sup.3, each of A.sup.1 and A.sup.2 independently represents hydrogen or methyl. Each of X.sup.1, X.sup.2, and X.sup.3 independently or at the same time represents hydrogen, monovalent metal, divalent metal, ammonium, or organic amine.In the formula (II), R.sup.1 represents hydrogen or methyl, and Z represents hydroxyl; a sulfonic acid group or its monovalent metal salt, divalent metal salt, ammonium salt, and organic amine salt; a phosphoric (or phosphorous) acid group or its monovalent metal salt, divalent metal salt, ammonium salt, and organic amine salt.

    摘要翻译: 本发明提供了一种钻井液,其含有由工业上有利的工艺获得且耐热性优异的共聚物组成的添加剂。 尽管添加剂的使用量相对较少,但由于各种硬水组分被包含在地下水或水泥中以及由于海水而引起的钻井液的性能的改变,足以防止其变化,并且添加剂 能够持续地显示钻井液的性质,而不管是否存在盐。 本发明的钻井液添加剂由平均分子量为1000〜5000的水溶性共聚物(A)构成。 水溶性共聚物(A)由40-99.5摩尔%的不饱和羧酸单体(I)组成,如以下通式(I)所示,和0.5-60摩尔%的不饱和(甲基)烯丙基醚单体 (II)表示,如通式(II)所示。 ,A1和A2各自独立地表示氢,甲基或-COOX2,A1和A2不同时为COOX2。 A3表示氢,甲基或-CH2COOX3,并且在A3是-CH2COOX3的情况下,A1和A2各自独立地表示氢或甲基。 X1,X2和X3各自独立地或同时表示氢,一价金属,二价金属,铵或有机胺。 在式(II)中,R 1表示氢或甲基,Z表示羟基; 磺酸基或其一价金属盐,二价金属盐,铵盐和有机胺盐; 磷酸(或磷)酸基或其一价金属盐,二价金属盐,铵盐和有机胺盐。

    Hydrophilic polymer and method for production thereof
    5.
    发明授权
    Hydrophilic polymer and method for production thereof 失效
    亲水聚合物及其生产方法

    公开(公告)号:US5073612A

    公开(公告)日:1991-12-17

    申请号:US290518

    申请日:1988-12-27

    IPC分类号: C08F8/48 C08F220/04

    摘要: A hydrophilic polymer having the water absorption capacity thereof 1 to 30 times to its own weight by a process of manufacture which comprises preparing a monomer component comprising (a) 2 to 25 mol % of a hydroxyl group-containing alpha,beta-ethylenically unsaturated monomer, (b) 5 to 30 mol % of a carboxyl group-containing alpha,beta-ethylenically unsaturated monomer, and (c) 93 to 45 mol % of a carboxylate group-containing alpha,beta-ethylenically unsaturated monomer, providing that the total of (b) and (c) is in the range of 98 to 75 mol %, radically polymerizing said monomer component, and heat-treating the resultant polymer thereby causing the hydroxyl group and carboxyl group possessed by the polymer to react with each other and form a crosslinked structure, a method for the production thereof, and uses found therefor including a cation sequestrating resin, a coolant and a coating material.

    Method for continuous agglomeration of an absorbent resin powder and
apparatus therefor
    6.
    发明授权
    Method for continuous agglomeration of an absorbent resin powder and apparatus therefor 失效
    吸附树脂粉末的连续附聚方法及其设备

    公开(公告)号:US5369148A

    公开(公告)日:1994-11-29

    申请号:US781140

    申请日:1991-12-26

    摘要: Continuous agglomeration of an absorbent resin powder is accomplished by a method which comprises introducing the absorbent resin powder into a cylindrical member having an open lower end by means of a current of air through a dispersing member disposed in the upper part of the cylindrical member and, at the same time, spraying minute droplets of an aqueous liquid downwardly through a nozzle disposed inside the dispersing member thereby establishing mutual parallel flow contact between the absorbent resin powder descending toward the lower part of the cylindrical member as dispersed with the current of air and the liquid droplets descending toward the lower part of the cylindrical member as diffused in the radial direction, and removing the produced agglomerate having a plurality of particles of the absorbent resin powder cohesively united through the medium of the liquid droplets via the lower part of the cylindrical member. An apparatus for working the method is also disclosed.

    摘要翻译: PCT No.PCT / JP90 / 00560 Sec。 371 1991年12月26日第 102(e)日期1991年12月26日PCT提交1990年4月27日PCT公布。 出版物WO91 / 17200 日本1991年11月14日。吸水树脂粉末的连续附聚是通过一种方法实现的,该方法包括将吸收性树脂粉末通过空气流通过设置在上层 一部分圆柱形构件,同时将微小液滴的水滴向下喷射通过设置在分散构件内部的喷嘴,从而在吸收性树脂粉末分散向下降到圆柱形构件的下部之间形成相互平行的流动接触 其中空气和液滴的电流朝向径向方向扩散的圆柱形构件的下部下降,并且通过液滴的介质将具有多个吸收性树脂粉末的颗粒的所产生的附聚物通过液滴的介质 圆柱形构件的下部。 还公开了一种用于加工该方法的装置。

    Method for production of acrylate and acrylate-containing polymer
    8.
    发明授权
    Method for production of acrylate and acrylate-containing polymer 失效
    生产含丙烯酸酯和含丙烯酸酯的聚合物的方法

    公开(公告)号:US5338810A

    公开(公告)日:1994-08-16

    申请号:US27678

    申请日:1993-03-08

    摘要: A method for the production of an acrylate by the neutralization reaction of acrylic acid and a basic substance, comprising sequentially (A) a step of supplying acrylic acid and said basic substance to water thereby subjecting them to a neutralization reaction while constantly retaining the neutralization ratio of acrylic acid within the neutralization reaction system in the range of 75 to 100 mol %, (B) a step of adjusting the neutralization ratio of acrylic acid within said neutralization reaction system in the range of 100.1 to 110 mol % by supplying said basic substance to said neutralization reaction system, (C) a step of retaining the neutralization ratio of acrylic acid within said neutralization reaction system in the range of 100.1 to 110 mol % for a period in the range of 1 to 120 minutes thereby allowing the neutralization reaction product to age, and (D) a step of adjusting the neutralization ratio of acrylic acid within said neutralization reaction system in the range of 20 to 100 mol % by supplying acrylic acid to said neutralization reaction system, and a method for the production of an acrylate-containing polymer using the acrylate.

    摘要翻译: 一种通过丙烯酸和碱性物质的中和反应制备丙烯酸酯的方法,其包括依次(A)将丙烯酸和所述碱性物质供给水的步骤,由此使其进行中和反应,同时保持中和率 的丙烯酸在75〜100摩尔%的范围内,(B)将所述中和反应体系中的丙烯酸的中和比例调整为100.1〜110摩尔%的步骤,通过供给所述碱性物质 所述中和反应体系中,(C)将所述中和反应体系中的丙烯酸中和比例保持在1〜120分钟的范围内的步骤,为100-1〜110摩尔%,从而使中和反应产物 (D)将所述中和反应体系中丙烯酸的中和比调节至2的范围 通过向所述中和反应体系供给丙烯酸,0〜100摩尔%,以及使用该丙烯酸酯制造含丙烯酸酯的聚合物的方法。