CONTAINER MODIFICATIONS TO MINIMIZE DEFECTS DURING REACTIVE POLYURETHANE FLOW
    5.
    发明申请
    CONTAINER MODIFICATIONS TO MINIMIZE DEFECTS DURING REACTIVE POLYURETHANE FLOW 审中-公开
    集装箱修改在反应性聚氨酯流动期间最小化缺陷

    公开(公告)号:US20130285272A1

    公开(公告)日:2013-10-31

    申请号:US13818130

    申请日:2011-09-30

    IPC分类号: B29D22/00

    摘要: A method of reducing the number or size of voids in a polyurethane comprises reacting the formulation components in a container having an inner surface, or having a liner that has an inner surface, that has been modified to reduce the shear forces that normally accompany introduction of such components into a container. This is done by modifying the inner container's or container liner's surface by profiling and/or engraving it, or by including as a liner a mesh. The profiling and/or engraving or mesh serves to alter the formulation's flow dynamics such that the polyurethane has fewer and/or smaller voids, i.e., has a more uniform density, than polyurethanes formed without the modification.

    摘要翻译: 减少聚氨酯中空隙数量或尺寸的方法包括使制剂组分在具有内表面或具有内表面的衬垫的容器中进行反应,所述内表面已被改性以减少通常伴随引入的剪切力 这样的组件成为容器。 这是通过对内容器或容器衬垫的表面进行成型和/或雕刻来进行的,或者通过将衬垫作为衬垫来进行。 成型和/或雕刻或网格用于改变制剂的流动动力学,使得聚氨酯具有比没有改性形成的聚氨酯更少和/或更小的空隙,即具有更均匀的密度。

    METHOD FOR FILLING HOLLOW CAVITIES WITH POLYMER FOAM
    6.
    发明申请
    METHOD FOR FILLING HOLLOW CAVITIES WITH POLYMER FOAM 有权
    用聚合物泡沫填充中空的方法

    公开(公告)号:US20130026670A1

    公开(公告)日:2013-01-31

    申请号:US13556268

    申请日:2012-07-24

    IPC分类号: B29C67/20

    摘要: Cavities are partially or entirely filled with a polymer foam. A flexible, porous mesh tube is introduced into the cavity. The mesh tube has a volume smaller than that of the cavity and has openings. A foamable liquid mixture is introduced into the mesh tube. Despite the presence of the openings, the foamable liquid mixture does not pass through the openings in the mesh tube. The captured liquid composition then expands. As the composition expands, it flows through the openings in the mesh tube and makes contact with the walls of the cavity. After curing, a polymer foam is obtained which adheres to the cavity walls.

    摘要翻译: 腔部分或全部被聚合物泡沫填充。 将柔性多孔网管引入空腔。 网管的体积小于空腔的体积,并具有开口。 将可发泡液体混合物引入网管中。 尽管存在开口,但是可发泡液体混合物不通过网管中的开口。 捕获的液体组合物然后膨胀。 当组合物膨胀时,其流过网管中的开口并与腔的壁接触。 固化后,获得粘附到腔壁的聚合物泡沫。