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    CROSS-LINKED, WATER-SWELLABLE POLYMER AND METHOD FOR PRODUCING THE SAME
    1.
    发明申请
    CROSS-LINKED, WATER-SWELLABLE POLYMER AND METHOD FOR PRODUCING THE SAME 审中-公开
    联网的水源聚合物及其生产方法

    公开(公告)号：WO0232964A3

    公开(公告)日：2002-11-28

    申请号：PCT/EP0112031

    申请日：2001-10-17

    Applicant: BASF AG ,  HEIDE WILFRIED ,  WICKEL STEFAN ,  DANIEL THOMAS ,  STUEVEN UWE

    Inventor： HEIDE WILFRIED ,  WICKEL STEFAN ,  DANIEL THOMAS ,  STUEVEN UWE

    IPC: C08F2/01 ,  C08F2/04 ,  C08F2/10 ,  C08F220/04 ,  C08F220/06 ,  C08F220/56 ,  C08F290/06 ,  B01J19/20 ,  C08F8/00

    CPC classification number: C08F220/56 ,  C08F220/04

    Abstract: The invention relates to a cross-linked, water-swellable polymer that contains polymerized into it moieties of a) water-soluble, monoethylenically unsaturated monomers, and b) 0.001 to 5 mole % based on the monomers a) of a cross-linking combination, b1) a first cross-linking agent with at least two (meth)acrylic ester moieties in the molecule and b2) a second cross-linking agent with at least two (meth)allyloxy moieties in the molecule, the molar ratio of b1) to b2) ranging from 0.7:1 to 10:1. The polymer according to the invention has a balanced property profile as regards absorptivity, gel strength, absorption speed and extractable components and can be advantageously produced by a continuous method.

    Abstract translation: 含有的聚合单元的交联的，水可溶胀的聚合物a）的水溶性，单烯键式不饱和的acrylestereinheiten含有至少两个（甲基第一交联剂的单体和B进行说明）从0.001到基于交联剂组合b1的单体a）为5摩尔％）） 分子和b2）分子中具有至少两个（甲基）烯丙氧基单元的第二交联剂，b1）与b2）的摩尔比在0.7:1至10:1的范围内。 该聚合物在吸收性，凝胶强度，吸收速率和可萃取水平方面具有平衡的性质特征，并且可以有利地以连续方法制备。

    Preparation of low odor hydrogel-forming polymerisate based on acrylic acid useful in the production of low odor superabsorbers of low residual monomer content
    5.
    发明专利
    Preparation of low odor hydrogel-forming polymerisate based on acrylic acid useful in the production of low odor superabsorbers of low residual monomer content 未知

    公开(公告)号：DE10257449A1

    公开(公告)日：2003-11-06

    申请号：DE10257449

    申请日：2002-12-09

    Applicant: BASF AG

    Inventor： NESTLER GERHARD ,  MUELLER-ENGEL KLAUS JOACHIM ,  WICKEL STEFAN

    IPC: A61L15/60 ,  C08F8/00 ,  C08F20/06 ,  C08J3/12

    Abstract: Preparation of low odor hydrogel-forming polymerisate based on acrylic acid involving preparation of a polymeric hydrogel by radical polymerization of acrylic acid containing monomer in an aqueous polymerization medium and conversion of the hydrogel into a particulate hydrogel or hydrogel forming powder, and treatment of these with a crosslinking substance having at least two latent functional groups reactive to the polymerisate carboxyl groups is new. A process for preparation of low odor hydrogel-forming polymerisate based on acrylic acid including the steps; (a) preparation of a polymeric hydrogel by radical polymerization of at least 50 wt.% of acrylic acid containing monomer composition in an aqueous polymerization medium and conversion of the hydrogel into a particulate hydrogel or a hydrogel forming powder, and optionally treatment of these with a crosslinking substance having at least two latent functional groups reactive to the polymerisate carboxyl groups, where in step (a) the acrylic acid contains at least 500 ppm of acrylic acid oligomer.

    7.
    发明专利
    未知

    公开(公告)号：AT286915T

    公开(公告)日：2005-01-15

    申请号：AT01978432

    申请日：2001-10-17

    Applicant: BASF AG

    Inventor： HEIDE WILFRIED ,  WICKEL STEFAN ,  DANIEL THOMAS ,  STUEVEN UWE

    IPC: C08F2/01 ,  B01J19/20 ,  C08F2/04 ,  C08F2/10 ,  C08F8/00 ,  C08F220/04 ,  C08F220/06 ,  C08F220/56 ,  C08F290/06

    Abstract: The invention relates to a cross-linked, water-swellable polymer that contains polymerized into it moieties of a) water-soluble, monoethylenically unsaturated monomers, and b) 0.001 to 5 mole % based on the monomers a) of a cross-linking combination, b1) a first cross-linking agent with at least two (meth)acrylic ester moieties in the molecule and b2) a second cross-linking agent with at least two (meth)allyloxy moieties in the molecule, the molar ratio of b1) to b2) ranging from 0.7:1 to 10:1. The polymer according to the invention has a balanced property profile as regards absorptivity, gel strength, absorption speed and extractable componenents and can be advantageously produced by a continuous method.

    METHOD FOR THE PRODUCTION OF LOW-ODOR HYDROGEL-FORMING POLYMERS
    8.
    发明专利
    METHOD FOR THE PRODUCTION OF LOW-ODOR HYDROGEL-FORMING POLYMERS 未知

    公开(公告)号：AU2003294814A1

    公开(公告)日：2004-06-30

    申请号：AU2003294814

    申请日：2003-12-08

    Applicant: BASF AG

    Inventor： NESTLER GERHARD ,  MULLER-ENGEL KLAUS JOACHIM ,  WICKEL STEFAN

    IPC: A61L15/60 ,  C08F8/00 ,  C08F20/06 ,  C08J3/12 ,  C07C51/43

    Abstract: Preparation of low odor hydrogel-forming polymerisate based on acrylic acid involving preparation of a polymeric hydrogel by radical polymerization of acrylic acid containing monomer in an aqueous polymerization medium and conversion of the hydrogel into a particulate hydrogel or hydrogel forming powder, and treatment of these with a crosslinking substance having at least two latent functional groups reactive to the polymerisate carboxyl groups is new. A process for preparation of low odor hydrogel-forming polymerisate based on acrylic acid including the steps; (a) preparation of a polymeric hydrogel by radical polymerization of at least 50 wt.% of acrylic acid containing monomer composition in an aqueous polymerization medium and conversion of the hydrogel into a particulate hydrogel or a hydrogel forming powder, and optionally treatment of these with a crosslinking substance having at least two latent functional groups reactive to the polymerisate carboxyl groups, where in step (a) the acrylic acid contains at least 500 ppm of acrylic acid oligomer.

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