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18 条记录 (耗时 0.034 秒)

    Process for preparing a water-absorbent polymer
    12.
    发明授权
    Process for preparing a water-absorbent polymer 失效
    制备吸水性聚合物的方法

    公开(公告)号：US5385983A

    公开(公告)日：1995-01-31

    申请号：US975171

    申请日：1992-11-12

    申请人： Andrew T. Graham

    发明人： Andrew T. Graham

    IPC分类号： A61L15/60 ,  C08F8/00

    CPC分类号： C08F220/06 ,  A61L15/60 ,  C08F8/14 ,  C08J3/245 ,  C08F2800/20 ,  C08F2810/20 ,  C08J2300/14 ,  C08J2333/02

    摘要： The subject invention provides a process for preparing a water-absorbent polymer by the addition of a surface crosslinking agent to a hydrogel. In particular, the subject invention provides a process for preparing a water-absorbent polymer by the addition of a surface crosslinking agent to a hydrogel in the absence of a surfactant.

    摘要翻译： 本发明提供了通过向水凝胶中加入表面交联剂来制备吸水性聚合物的方法。 特别地，本发明提供了一种在不存在表面活性剂的情况下通过向水凝胶中加入表面交联剂来制备吸水性聚合物的方法。

    Process for recycling aqueous fluid absorbents fines to a polymerizer
    13.
    发明授权
    Process for recycling aqueous fluid absorbents fines to a polymerizer 失效
    将水性液体吸收剂再循环至聚合反应器的方法

    公开(公告)号：US5342899A

    公开(公告)日：1994-08-30

    申请号：US701232

    申请日：1991-05-16

    申请人： Andrew T. Graham ,  Herbert Gartner

    发明人： Andrew T. Graham ,  Herbert Gartner

    IPC分类号： C08F6/00 ,  A61L15/60 ,  C08F265/00 ,  C08F265/02 ,  C08F267/02 ,  C08J11/04

    CPC分类号： A61L15/60 ,  C08F265/00

    摘要： A process is described for recycling dry aqueous fluid absorbent polymer fines into a process that includes a polymerization step for making the aqueous fluid absorbent polymer. The process requires recovering the dry polymer fines, mixing the fines with a polymerizable monomer solution for making the aqueous fluid absorbent polymer and polymerizing the mixture of fines and monomer to form the aqueous fluid absorbent polymer. In the process the fines are incorporated into the new polymer gel and becomes indistinguishable therefrom. The gel may then comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The fines portion is then recycled up to about 30 percent by weight based on gel solids may be recycled for the preferred polyacrylate based aqueous fluid absorbent polymer.

    摘要翻译： 描述了一种将干性水性液体吸收性聚合物细粒再循环到包括用于制备含水流体吸收聚合物的聚合步骤的方法中的方法。 该方法需要回收干燥聚合物细粒，将细粒与可聚合单体溶液混合以制备含水液体吸收聚合物并聚合细粒和单体的混合物以形成含水流体吸收聚合物。 在此过程中，细粉被掺入到新的聚合物凝胶中并且与之不可区别。 然后将凝胶粉碎成干燥的颗粒，然后在具有小于所需尺寸的细粉部分中分离成具有所需最小粒度的部分。 然后，基于凝胶固体将细粒部分再循环至约30重量％，可将其再循环用于优选的基于聚丙烯酸酯的含水流体吸收聚合物。

    SURFACE COLOR PATTERNING WHILE DRAWING POLYMER ARTICLES
    16.
    发明申请
    SURFACE COLOR PATTERNING WHILE DRAWING POLYMER ARTICLES 审中-公开
    在绘制聚合物文章时的表面颜色图案

    公开(公告)号：US20090305008A1

    公开(公告)日：2009-12-10

    申请号：US12478192

    申请日：2009-06-04

    申请人： Kevin L. Nichols ,  James J. O'Brien ,  Andrew T. Graham ,  Gregory T. Stewart ,  Claude Brown, JR.

    发明人： Kevin L. Nichols ,  James J. O'Brien ,  Andrew T. Graham ,  Gregory T. Stewart ,  Claude Brown, JR.

    IPC分类号： B32B5/14 ,  B29C47/04

    CPC分类号： B29C55/30 ,  B29K2995/002 ,  B44C5/0453 ,  B44F9/02 ,  Y10T428/24802

    摘要： Prepare an oriented polymer composition having a decorative appearance by a process including extruding an orientable polymer composition from an extruder, directing the orientable polymer composition through a calibrator and then drawing the orientable polymer composition, optionally through a drawing die, at a drawing temperature to form an oriented polymer composition wherein the process further includes disposing a colorant onto a surface of the oriented polymer composition prior to the calibrator, prior to the drawing die or both prior to a calibrator and prior to the drawing die in a pattern having a width of at least five millimeters and that preferably so that the colorant is at least partially located on a recessed portion of the resulting oriented polymer composition's surface and/or extends to a depth of at least one millimeter below the oriented polymer composition's surface.

    摘要翻译： 通过一种方法制备具有装饰外观的定向聚合物组合物，包括从挤出机挤出可取向聚合物组合物，将可取向聚合物组合物引导通过校准器，然后任选地通过拉伸模头在拉伸温度下拉伸可取向聚合物组合物以形成 定向聚合物组合物，其中所述方法还包括在校准器之前，在拉伸模具之前或之前在校准器之前并且在拉伸模具之前将着色剂设置在定向聚合物组合物的表面上， 至少五毫米，并且优选使得着色剂至少部分地位于所得定向聚合物组合物表面的凹部上和/或延伸至定向聚合物组合物表面下方至少一毫米深度。