Method for binding particulate, water-absorbing, acid group-containing polymers to a base material
    1.
    发明申请
    Method for binding particulate, water-absorbing, acid group-containing polymers to a base material 失效
    将颗粒状,吸水性含酸基聚​​合物与基材结合的方法

    公开(公告)号:US20060025030A1

    公开(公告)日:2006-02-02

    申请号:US10514934

    申请日:2003-06-06

    Abstract: A process for binding particulate water-absorbing acid-functional polymers to a carrier material by means of compounds comprising amino groups, which comprises contacting the carrier material with particulate water-absorbing acid-functional polymers whose acid groups have been 0 to not more than 55 mol % neutralized with alkali metal and/or ammonium bases and then raising the degree of neutralization of these polymers to not less than 60 mol % by treatment with amino-containing compounds. The use of compounds comprising amino groups and selected from the group of the compounds consisting of the alkanolamines and compounds which contain ethyleneimine and/or vinylamine units to neutralize and bind particulate water-absorbing acid-functional polymers neutralized 0 to not more than 55 mol % with alkali metal and/or ammonium bases to a carrier material.

    Abstract translation: 一种通过包含氨基的化合物将颗粒状吸水酸官能聚合物与载体材料结合的方法,该方法包括使载体材料与酸性基团为0至不超过55的颗粒状吸水酸官能聚合物 mol%用碱金属和/或铵碱中和,然后通过用含氨基化合物处理将这些聚合物的中和度提高到不小于60mol%。 使用包含氨基并且选自由链烷醇胺组成的化合物和含有乙烯亚胺和/或乙烯胺单元的化合物中和并结合颗粒状吸水性酸官能聚合物的化合物的化合物中和至不大于55mol% 与载体材料的碱金属和/或铵碱。

    Production of a Water-Absorbing Resin to Which a Particulate Additive is Admixed
    2.
    发明申请
    Production of a Water-Absorbing Resin to Which a Particulate Additive is Admixed 有权
    混合颗粒添加剂的吸水树脂的生产

    公开(公告)号:US20080306209A1

    公开(公告)日:2008-12-11

    申请号:US12158502

    申请日:2006-12-28

    CPC classification number: C08F2/44 C08F220/06 C08F222/1006

    Abstract: The invention relates to a process for producing a water-absorbing resin by polymerization of a reaction mixture comprising at least one hydrophilic monomer and, if appropriate, at least one crosslinker in a reactor, which comprises admixing the reaction mixture with at least one first portion of a particulate additive before the reaction mixture has reached a residence time of 40% of the overall residence time in the reactor and with at least one second portion of a particulate additive when the reaction mixture has reached a residence time of 45% or more of the overall residence time in the reactor, the additive being selected from water-absorbing resin powders, fillers and mixtures thereof, the total solids content of monomer and additive being in the range from 30% to 60% by weight, the amount of additive being in the range from 5% to 50% by weight, based on the monomers, and the weight ratio of the first portion to the second portion of the additive being in the range from 10:1 to 1:5. The resin powder is recycled fine-sized material for example. Not only the residual monomer content, specifically the residual crosslinker content, but also the level of extractables in the water-absorbing resin are reduced by the method of addition described. A high fraction of additives can be incorporated without the properties of the water-absorbing resin obtained being adversely affected. The additives enter a sufficiently firm bond with the resin, so that no excessive dusting occurs on exposure to mechanical stress.

    Abstract translation: 本发明涉及通过聚合包含至少一种亲水单体和如果合适的反应器中至少一种交联剂的反应混合物来生产吸水树脂的方法,其包括将反应混合物与至少一个第一部分 的反应混合物在反应混合物的停留时间达到总反应器停留时间的40%的停留时间和至少一个第二部分的颗粒状添加剂之前,当反应混合物达到45%或更多的停留时间时, 在反应器中的总停留时间,添加剂选自吸水树脂粉末,填料及其混合物,单体和添加剂的总固体含量在30重量%至60重量%的范围内,添加剂的量为 基于单体的5重量%至50重量%的范围,并且添加剂的第一部分与第二部分的重量比在10:1至 1:5。 树脂粉末是例如再循环的精细尺寸的材料。 通过所述的添加方法,不仅残留单体含量,特别是残留交联剂含量,而且吸水性树脂中的可萃取物的含量都降低。 可以并入高分数的添加剂,而不会对获得的吸水性树脂的性能产生不良影响。 添加剂与树脂进行足够牢固的粘合,使得在暴露于机械应力时不会发生过度的除尘。

    Absorbent polymers, manufacturing process and their use in particular
for sanitary articles
    5.
    发明授权
    Absorbent polymers, manufacturing process and their use in particular for sanitary articles 失效
    吸收性聚合物,制造工艺及其特别用于卫生用品的用途

    公开(公告)号:US5258448A

    公开(公告)日:1993-11-02

    申请号:US957006

    申请日:1992-10-06

    CPC classification number: C08F20/06 A61L15/18 A61L15/60

    Abstract: Hydrophobic, cross-linked absorbent polymers, insoluble in water, in the form of microbeads , based on silica and acrylic acid partially salified by an alkali metal, are obtained by a polymerization process in a water-in-oil suspension in which an aqueous phase obtained extemporaneously from (1), an aqueous solution containing one or more hydrosoluble polymerization initiators, which are free radical generators, and (2), an aqueous phase containing at a concentration of 50.+-.15% by weight a mixture of by weight 2 to 25% of colloidal silica and 98 to 75% of acrylic acid of which 60 to 80 is salified by an alkaline metal, is introduced slowly, under agitation, into a totally deoxygenated oil phase maintained at boiling point and containing a protective colloid, with an aqueous phase to oil phase weight ratio of between 0.8 and 1.2, then when the polymerization reaction is finished, 15 to 55% of the water present is eliminated by azeotropic distillation with recycling of the organic solvent, then 0.01 to 0.06% in molar proportions relative to the monomers of ethyleneglycol diglycidyl ether is introduced into the reaction mixture at boiling point and azeotropic distillation of the residual water is continued until a suspension is obtained which has a dry content of 85.+-.10% and finally the desired polymer is isolated by filtration; use as absorbent compound and in a sanitary article.

    Abstract translation: 通过在油包水悬浮液中的聚合方法获得以碱金属部分盐化的基于二氧化硅和丙烯酸的微珠形式的不溶于水的疏水性交联吸收性聚合物,其中水相 从(1)中得到的含有一种或多种作为自由基发生剂的水溶性聚合引发剂的水溶液,和(2)含有浓度为50 +/- 15重量%的混合物的水相, 在搅拌下将2〜25%的胶体二氧化硅和98〜75%的丙烯酸(其中60〜80)用碱金属盐化,缓慢加入到保持在沸点并含有保护胶体的完全脱氧油相中, 水相 - 油相重量比在0.8和1.2之间,然后当聚合反应完成时,通过共沸蒸馏除去存在的15-55%的水,并回收有机溶液 nt,然后相对于乙二醇二缩水甘油醚单体的摩尔比例为0.01至0.06%,在沸点下引入该反应混合物,继续共沸蒸馏残余水直至获得干燥含量为85 + / -10%,最后通过过滤分离所需的聚合物; 用作吸收剂化合物和卫生制品。

    Method for the Continuous Production of Crosslinked Particulate Gel-Type Polymers
    6.
    发明申请
    Method for the Continuous Production of Crosslinked Particulate Gel-Type Polymers 审中-公开
    连续生产交联颗粒凝胶型聚合物的方法

    公开(公告)号:US20080004408A1

    公开(公告)日:2008-01-03

    申请号:US11662824

    申请日:2005-09-21

    Abstract: Disclosed is a method for the continuous production of crosslinked, particulate, gel-type polymers by copolymerizing a) water-soluble, monoethylenically unsaturated monomers, b) 0.001 to 5 molar percent of monomers containing at least two polymerizable groups, the percentage being relative to the monomers (a), in a mixer. The substances that are added at the beginning of the kneader are conveyed in an axial direction towards the end of the mixer. The inventive method is characterized in that at least one of the following conditions is met: i) the filling level in the kneader mixer is at least 71 percent; ii) the water-soluble, monoethylenically unsaturated monomers contain up to 150 ppm of a semicyclic ether of a hydroquinone; iii) the temperature in the polymerization zone exceeds 65° C.; iv) the kneader has a remixing rate of less than 0.33.

    Abstract translation: 公开了通过共聚a)水溶性单烯属不饱和单体,b)0.001至5摩尔%的含有至少两个可聚合基团的单体,其相对于 单体(a),在混合器中。 在捏合机开始时添加的物质沿轴向方向输送到混合器的末端。 本发明的方法的特征在于满足以下条件中的至少一个:i)捏合机混合器中的填充水平为至少71%; ii)水溶性单烯属不饱和单体含有高达150ppm的氢醌的半环醚; iii)聚合区域的温度超过65℃。 iv)捏合机的再混合率小于0.33。

    Mixtures of polyalkoxylated trimethylolpropane (meth) acrylate
    7.
    发明申请
    Mixtures of polyalkoxylated trimethylolpropane (meth) acrylate 审中-公开
    聚烷氧基化三羟甲基丙烷(甲基)丙烯酸酯的混合物

    公开(公告)号:US20060212011A1

    公开(公告)日:2006-09-21

    申请号:US10551630

    申请日:2004-04-02

    Abstract: The present invention relates to novel mixtures of (meth)acrylic esters of polyalkoxylated trimethylolpropane of the formula where AO is for each AO independently at each instance EO, PO or BO where EO is O—CH2-CH2- PO is independently at each instance O—CH2-CH(CH3)- or O—CH(CH3)-CH2- BO is independently at each instance O—CH2-CH(CH2-CH3)- or O—CH(CH2-CH3)-CH2- p1+p2+p3 is 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74 or 75, R1, R2 and R3 are independently H or CH3, a simplified process for preparing these ester mixtures and the use of reaction mixtures thus obtainable.

    Abstract translation: 本发明涉及下式的聚烷氧基化三羟甲基丙烷的(甲基)丙烯酸酯的新混合物,其中AO在每种情况下各自独立地为每个AO,PO或BO,其中EO为O-CH 2 -CH 2 - ,PO各自独立地为O -CH 2 -CH(CH 3) - 或O-CH(CH 3)-CH 2 - BO在每种情况下独立地为O-CH 2 -CH(CH 2 -CH 3) - 或O-CH(CH 2 -CH 3)-CH 2 - + p3为28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51 ,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74或75,R1 ,R2和R3独立地为H或CH3,制备这些酯混合物的简化方法以及由此获得的反应混合物的使用。

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