POLYURETHANE ADHESIVES FOR REVERSE OSMOSIS MODULES
    1.
    发明申请
    POLYURETHANE ADHESIVES FOR REVERSE OSMOSIS MODULES 审中-公开
    聚氨酯粘合剂用于反向软骨模块

    公开(公告)号:US20160298009A1

    公开(公告)日:2016-10-13

    申请号:US15092892

    申请日:2016-04-07

    摘要: An adhesive composition is made from a first part containing an isocyanate group-containing prepolymer that is a reaction product of a first isocyanate and at least one polyol; and a second isocyanate that is essentially unreacted with the first isocyanate, the at least one polyol, and the isocyanate group containing prepolymer; and a second part containing at least two polyols; wherein the adhesive composition is essentially free of diluent oils and solvents. A polyurethane adhesive is made by mixing the first part and the second part in a 1:1 to 1.2:1 weight ratio of the first part to the second part to form a mixture, and curing the mixture. The polyurethane adhesive can be used in articles, including semipermeable membranes and reverse osmosis modules. When a solvent is filtered through the semipermeable membranes by reverse osmosis, the polyurethane adhesive prevents or reduces osmotic blistering.

    摘要翻译: 粘合剂组合物由含有异氰酸酯基的预聚物的第一部分制成,所述预聚物是第一异氰酸酯和至少一种多元醇的反应产物; 和与第一异氰酸酯,至少一种多元醇和含异氰酸酯基的预聚物基本上未反应的第二异氰酸酯; 和含有至少两种多元醇的第二部分; 其中所述粘合剂组合物基本上不含稀释油和溶剂。 通过将第一部分和第二部分以第一部分与第二部分的1:1至1.2:1的重量比混合形成混合物并固化该混合物,从而制备聚氨酯粘合剂。 聚氨酯粘合剂可用于制品中,包括半透膜和反渗透模块。 当通过反渗透通过半透膜过滤溶剂时,聚氨酯粘合剂防止或减少渗透性起泡。

    MULTI-PART POLYURETHANE COMPOSITIONS, ARTICLES THEREOF, AND METHOD OF MAKING
    2.
    发明申请
    MULTI-PART POLYURETHANE COMPOSITIONS, ARTICLES THEREOF, AND METHOD OF MAKING 审中-公开
    多部分聚氨酯组合物,其制品及其制备方法

    公开(公告)号:US20160145476A1

    公开(公告)日:2016-05-26

    申请号:US14950208

    申请日:2015-11-24

    IPC分类号: C09J175/08 B01D63/02

    摘要: A multi-part polyurethane composition is composed of a first part comprising a polyurethane prepolymer composition and a second part comprising a polyol having a hydroxyl functionality of 4 to 6, and a desiccant. The composition further comprises a plasticizer, wherein the plasticizer can be present in any one or more of the parts. A polyurethane is formed by mixing and curing the composition. The composition can be used as an adhesive for separatory devices, in particular for potting hollow fibers.

    摘要翻译: 多部分聚氨酯组合物由包含聚氨酯预聚物组合物的第一部分和包含羟基官能度为4-6的多元醇和干燥剂组成的第二部分组成。 组合物还包含增塑剂,其中增塑剂可以存在于任何一个或多个部分中。 通过混合和固化组合物形成聚氨酯。 该组合物可用作分离装置的粘合剂,特别是用于灌封中空纤维。