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    Method using a dry fluidised bed for producing thin, absorbent surface structures
    64.
    发明授权
    Method using a dry fluidised bed for producing thin, absorbent surface structures 有权
    使用干燥流化床制造薄的吸收性表面结构的方法

    公开(公告)号：US07250093B2

    公开(公告)日：2007-07-31

    申请号：US10467811

    申请日：2002-02-15

    Applicant: Wolfgang Heider ,  Jürgen Hofmann ,  Mariola Wanior ,  Rüdiger Funk ,  Ulrike Licht ,  Michael Ehle

    Inventor： Wolfgang Heider ,  Jürgen Hofmann ,  Mariola Wanior ,  Rüdiger Funk ,  Ulrike Licht ,  Michael Ehle

    IPC: B32B31/12 ,  B32B31/20 ,  B32B5/16

    CPC classification number: A61F13/534 ,  A61F13/15658 ,  A61F13/15699 ,  A61F13/15707 ,  A61F2013/15382 ,  A61L15/58 ,  Y10T442/2484 ,  Y10T442/277 ,  Y10T442/614 ,  C08L33/02 ,  C08L75/04

    Abstract: A process for producing thin absorbent planar structures which may be used in hygiene products such as diapers, incontinence products, wound contact materials or sanitary napkins to absorb body fluids, comprises the steps of: A) producing a mixture of an adhesive in dispersion form and a particulate absorbent by fluidizing the components, B) applying the mixture of adhesive and absorbent uniformly to the surface of one side of a first planar backing material, C) one side of a second planar backing material is applied to the mixture of adhesive and absorbent that is present on the surface of one side of the first planar backing material, so producing a sandwichlike intermediate, and D) the sandwichlike intermediate is processed to the end product at a temperature of at least 90° C., a pressure of from 4 to 50 bar, and a pressing time of from 0.5 to 5 min.

    Abstract translation: 用于生产可用于卫生产品如尿布，失禁产品，缠绕接触材料或卫生巾以吸收体液的薄吸收性平面结构的方法包括以下步骤：A）制备分散形式的粘合剂和 通过使组分流态化的颗粒吸收剂，B）将粘合剂和吸收剂的混合物均匀地施加到第一平面背衬材料的一侧的表面，C）将第二平面背衬材料的一侧施加到粘合剂和吸收剂的混合物 其存在于第一平面背衬材料的一侧的表面上，因此产生夹心状的中间体，D）将夹层状中间体在至少90℃的温度下加工成最终产物，压力为4 至50巴，加压时间为0.5至5分钟。

    Hydrophilic hydrogels with a high swelling capacity and method for producing and using them
    68.
    发明授权
    Hydrophilic hydrogels with a high swelling capacity and method for producing and using them 失效
    具有高溶胀能力的亲水性水凝胶及其制造和使用方法

    公开(公告)号：US06602950B1

    公开(公告)日：2003-08-05

    申请号：US09806944

    申请日：2001-04-06

    Applicant: Joachim Dentler ,  Rüdiger Funk ,  Norbert Herfert ,  Mariola Wanior ,  Friedrich Engelhardt

    Inventor： Joachim Dentler ,  Rüdiger Funk ,  Norbert Herfert ,  Mariola Wanior ,  Friedrich Engelhardt

    IPC: A61L1524

    CPC classification number: C08F283/06 ,  A61L15/60 ,  C08F8/00 ,  C08F251/00 ,  C08F283/02 ,  Y10S524/916 ,  Y10S526/932 ,  Y10S604/904 ,  C08F283/00

    Abstract: A hydrophilic, highly swellable hydrogel based on (co)polymerized monomers or based on graft (co)polymers and prepared by a) free-radically (co)polymerizing one-or more hydrophilic monomers or graft (co)polymerizing one or more hydrophilic monomers onto a grafting base, the average degree of neutralization of the acid-functional monomers being from 0 to 40 mol %, b) comminuting the acidic hydrogel, c) neutralizing the acidic hydrogel to an ultimate degree of neutralization of 50-85 mol % by adding a neutralizing agent, d) drying, grinding and sieving the hydrogel particles characterized by a centrifuge retention and a vertical absorption swell height, each having a specified minimum.value, coupled with an extractables content having a specified maximum value or a centrifuge retention and a vertical absorption swell height, each having a specified minimum value and an extractables content having a specified maximum value.

    Abstract translation: 基于（共）聚合单体或基于接枝（共）聚合物的亲水性，高度可溶胀的水凝胶，并通过自由基（共）聚合一种或多种亲水单体或将一种或多种亲水性单体接枝（共）聚合到 接枝碱，酸官能单体的平均中和度为0〜40摩尔％，b）粉碎酸性水凝胶，c）通过加入酸性水凝胶中和酸性水凝胶至50-85摩尔％的最终中和度 中和剂，d）干燥，研磨和筛分水凝胶颗粒，其特征在于离心机保留和垂直吸收膨胀高度，每个具有特定的最小值，加上具有特定最大值的可提取物含量或离心机保留和垂直吸收 每个具有指定的最小值的膨胀高度，以及具有指定的最大值的可提取物内容。

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