Postcrosslinking of water-absorbing polymers
    6.
    发明授权
    Postcrosslinking of water-absorbing polymers 有权
    吸水聚合物的后交联

    公开(公告)号:US08258223B2

    公开(公告)日:2012-09-04

    申请号:US13171107

    申请日:2011-06-28

    IPC分类号: C08J3/24 C08F20/06 C08F8/42

    摘要: The invention concerns a process for producing water-absorbing polymer, which comprises a base polymer A being mixed with a first aqueous solution B of at least one surface postcrosslinker and a second aqueous solution C of at least one polyvalent cation and thermally treated, wherein said base polymer A is based on at least 50% neutralized acid-functional monomer and said solutions B and C are metered wholly or partly concurrently through separate nozzles whereby a water-absorbing polymer having a high saline flow conductivity value is obtained.

    摘要翻译: 本发明涉及一种生产吸水聚合物的方法,其包括将基础聚合物A与至少一个表面后交联剂的第一水溶液B和至少一种多价阳离子的第二水溶液C混合并进行热处理,其中所述 基础聚合物A基于至少50%中和的酸官能单体,并且所述溶液B和C通过单独的喷嘴全部或部分同时计量,从而获得具有高盐水流动电导率值的吸水聚合物。

    Method for producing polymers
    9.
    发明授权
    Method for producing polymers 失效
    生产聚合物的方法

    公开(公告)号:US07629428B2

    公开(公告)日:2009-12-08

    申请号:US10586203

    申请日:2005-01-18

    IPC分类号: C08F20/06

    CPC分类号: C08F220/06

    摘要: (Meth)acrylate salt polymers are prepared by free-radical polymerization of (meth)acrylate salt with or without other monomers in an aqueous medium by using a supersaturated aqueous solution of (meth)acrylate salt. The resulting highly concentrated reaction mixtures are notable for their high solids content and increased space-time yield.

    摘要翻译: (甲基)丙烯酸盐盐聚合物通过使用(甲基)丙烯酸盐的过饱和水溶液在含水介质中与(或)其它单体或不与其它单体进行自由基聚合来制备。 所得到的高度浓缩的反应混合物由于其高固体含量和增加的时空产率而显着。

    Fine-Grained Water-Absorbent Particles With a High Fluid Transport and Absorption Capacity
    10.
    发明申请
    Fine-Grained Water-Absorbent Particles With a High Fluid Transport and Absorption Capacity 有权
    具有高流体输送和吸收能力的细颗粒吸水剂颗粒

    公开(公告)号:US20080125533A1

    公开(公告)日:2008-05-29

    申请号:US11665883

    申请日:2005-10-14

    IPC分类号: C08K3/32 C08L35/02 C08L35/00

    CPC分类号: A61L15/60 C08L33/02

    摘要: The invention relates to finely divided water-absorbing polymeric particles having high fluid transportation and absorption performance, the Centrifuge Retention Capacity (CRC) being not less than 26 g/g, the absorbency under a load of 4.83 kPa (AUL 1.7 psi) not less than 23 g/g and the Transportation Value (TV) not less than 15,000 cm3s, the Transportation Value (TV) being the product of Saline Flow Conductivity (SFC) and wicking absorption after 60 minutes (DA60) multiplied by 107, and wherein the wicking absorption after 60 minutes (DA60) is the weight of 0.9% by weight sodium chloride solution absorbed by 70 g of the water-absorbing polymeric particles in 60 minutes, wherein the water-absorbing polymeric particles are situated, during measurement, in a circularly round vessel which has an internal diameter of 6 cm and is sealed at its lower end by a sieve base of 36 μm mesh size, and the sieve base is in atmospheric contact with 0.9% by weight sodium chloride solution, processes for their preparation and also their use in hygiene articles and packaging materials.

    摘要翻译: 本发明涉及具有高流体输送和吸收性能的细分散的吸水聚合物颗粒,离心保留容量(CRC)不小于26g / g,负荷4.83kPa(AUL 1.7psi)下的吸光度不低于 运输价值(TV)不小于15,000厘米3,交通运输价值(TV)是盐水流动电导率(SFC)和60分钟后芯吸吸收率 DA 60)乘以10 7,其中60分钟后的芯吸吸收(DA <60>)为重量的0.9%(重量)的钠 60分钟内由70g吸水性聚合物颗粒吸收的氯化物溶液,其中吸水性聚合物颗粒在测量期间位于具有6cm内径并在其下端密封的圆形圆形容器中 通过筛孔尺寸为36μm的筛网,筛基与大气接触为0.9% 重量的氯化钠溶液,其制备方法以及它们在卫生制品和包装材料中的使用。