Process for Producing Surface Crosslinked Superabsorbents
    1.
    发明申请
    Process for Producing Surface Crosslinked Superabsorbents 审中-公开
    生产表面交联超吸收剂的方法

    公开(公告)号:US20100261604A1

    公开(公告)日:2010-10-14

    申请号:US12746914

    申请日:2008-12-16

    IPC分类号: B01J20/26

    摘要: Surface-crosslinked superabsorbents are produced using a process that comprises the steps of contacting a superabsorbent base polymer with a polyvalent metal salt solution produced by dissolving at least two different polyvalent metal salts, at least one of which comprises a chelate-forming anion, and heat-treating to produce a surface-crosslinked superabsorbent.

    摘要翻译: 使用包括以下步骤的方法制备表面交联的超吸收剂,所述方法包括使超吸收性基础聚合物与通过溶解至少两种不同的多价金属盐而制备的多价金属盐溶液的步骤,所述多价金属盐中的至少一种包含形成螯合物的阴离子和热 制备表面交联的超吸收剂。

    Process for Producing Re-Moisturised Surface-Crosslinked Superabsorbents
    3.
    发明申请
    Process for Producing Re-Moisturised Surface-Crosslinked Superabsorbents 审中-公开
    生产再润湿表面交联超吸收剂的方法

    公开(公告)号:US20100323885A1

    公开(公告)日:2010-12-23

    申请号:US12528543

    申请日:2008-03-10

    IPC分类号: B01J20/30

    CPC分类号: C08J3/245 C08J2300/14

    摘要: Re-moisturised, surface-crosslinked superabsorbents are produced using a process that comprises the steps of contacting a superabsorbent base polymer with an organic crosslinker and a polyvalent metal salt solution in the presence of an alcohol, heat-treating to produce a surface-crosslinked, dry superabsorbent and re-moisturising the surface-crosslinked dry superabsorbent.

    摘要翻译: 使用包括以下步骤的方法制备再保湿的表面交联的超吸收剂,所述方法包括在醇的存在下使超吸收性基础聚合物与有机交联剂和多价金属盐溶液接触,进行热处理以产生表面交联的, 干燥超吸收剂,并重新保湿表面交联干燥超吸收剂。

    Superabsorbent polymers and products therefrom
    6.
    发明授权
    Superabsorbent polymers and products therefrom 失效
    超吸收性聚合物及其制品

    公开(公告)号:US5597873A

    公开(公告)日:1997-01-28

    申请号:US450267

    申请日:1995-05-25

    摘要: A surface crosslinked superabsorbent polymer composition, a process for its preparation and articles made therefrom wherein said superabsorbent composition is prepared by surface crosslinking the polymerization product of a carboxyl or carboxylate group containing monomer with a crosslinker solution comprising water, C.sub.3 -C.sub.6 diol and a crosslinking compound having at least two functional reactive groups with the carboxyl or carboxylate groups of said polymerization product.

    摘要翻译: 表面交联超吸收聚合物组合物,其制备方法和由其制备的制品,其中所述超吸收性组合物通过将含羧基或羧酸酯基团的单体的聚合产物与包含水,C3-C6二醇和交联剂的交联剂溶液 具有至少两个官能反应基团的化合物与所述聚合产物的羧基或羧酸酯基团。

    Cationic nitrogen acrylamide polymers
    7.
    发明授权
    Cationic nitrogen acrylamide polymers 失效
    阳离子氮丙烯酰胺聚合物

    公开(公告)号:US4777218A

    公开(公告)日:1988-10-11

    申请号:US13517

    申请日:1987-02-11

    摘要: Novel cationic polymers are provided by reaction of high molecular weight polymers and copolymers of acrylamide with an alkyl epoxide compound such as glycidyldialkylamine or glycidyltrialkylammonium salt to form polymer chain units containing e.g. pendant (N-2-hydroxypropyl) dialkylamine groups or their trialkylammonium salts. Processes for making the graft copolymers are provided in which the reaction is carried out while maintaining the reaction mixture in gel form by swelling the starting solid polymer with a solvent mixture.The reaction may be carried out in a homogeneous reaction environment or in a heterogeneous reaction environment by dispersing the starting solid polymer in an inert liquid that is a non-solvent for both the polymer and the salt. The polymeric products of the reaction may be hardened with a suitable liquid, such as isopropanol, to a solid particulate material.

    摘要翻译: 通过高分子量聚合物和丙烯酰胺与烷基环氧化合物如缩水甘油基二烷基胺或缩水甘油基三烷基铵盐的共聚物的反应提供了新的阳离子聚合物,以形成含有例如, (N-2-羟丙基)二烷基胺基或其三烷基铵盐。 提供制备接枝共聚物的方法,其中通过用溶剂混合物溶胀起始固体聚合物,同时保持反应混合物为凝胶形式,进行反应。 该反应可以在均相反应环境中或通过将起始固体聚合物分散在用作聚合物和盐的非溶剂的惰性液体中而在均相反应环境中进行。 反应的聚合产物可以用合适的液体如异丙醇固化成固体颗粒材料。