Method of preparing water-borne colloidal dispersions of vinyl resins
    4.
    发明授权
    Method of preparing water-borne colloidal dispersions of vinyl resins 失效
    制备乙烯基树脂水性胶体分散体的方法

    公开(公告)号:US4415698A

    公开(公告)日:1983-11-15

    申请号:US333892

    申请日:1981-12-23

    申请人: You-Ling Fan

    发明人: You-Ling Fan

    IPC分类号: C08J3/03 C09D127/06 C08F27/06

    摘要: Vinyl and vinylidene halide resins containing carboxyl or sulfonic acid functionalities can be formulated as stable, aqueous, colloidal dispersions by converting them to ionomers in a mixture of water-miscible base, water, organic water-miscible macromolecular compound, water-miscible organic solvent having an affinity for the resin and water-miscible organic co-solvent which is a poor solvent for the resins and a water-immiscible organic diluent, stripping the resultant colloidal dispersion to a total organic solvent content of about 0.2 to about 20% by volume and finally mixing the colloidal dispersion with an acrylic internally crosslinked rheology modifier.

    摘要翻译: 含有羧基或磺酸官能团的乙烯基和亚乙烯基卤化物树脂可以通过将它们转化为与水混溶的碱,水,有机水混溶性高分子化合物,水混溶性有机溶剂的混合物中的离聚物而配制成稳定的水性胶体分散体, 对树脂和水混溶性有机共溶剂的亲和力,其是树脂的不良溶剂和与水不混溶的有机稀释剂,将所得胶体分散体汽提至总体有机溶剂含量为约0.2至约20体积%,并且 最后将胶体分散体与丙烯酸内部交联的流变改性剂混合。

    Production of powdered resin and the powdered resin so produced
    5.
    发明授权
    Production of powdered resin and the powdered resin so produced 失效
    生产粉末状树脂和如此生产的粉状树脂

    公开(公告)号:US4404346A

    公开(公告)日:1983-09-13

    申请号:US176732

    申请日:1980-08-05

    IPC分类号: B01J47/00 C08J3/12 B01J41/08

    摘要: Powdered synthetic polymeric resin is produced by swelling or shrinking resin particles by contact with water or an organic solvent to introduce strain within the particles and comminuting the swollen or shrunk particles by grinding them in a rotary attrition mill. This process is particularly useful for the production of powdered resins for oral consumption, for example powdered cholestyramine resin, since particle sizes such that 90% by weight and/or number is below 30 microns in average particle diameter in the wet swollen state may be achieved.

    摘要翻译: 粉碎的合成聚合物树脂通过与水或有机溶剂接触而使树脂颗粒膨胀或收缩来在颗粒内引入应变,并通过在旋转磨耗机中研磨它们来粉碎膨胀或收缩的颗粒。 该方法对于生产用于口服消费的粉末状树脂,例如粉状考来烯胺树脂是特别有用的,因为可以实现在湿膨胀状态下平均粒径为90重量%和/或数量小于30微米的粒径 。

    Quaternization process for ion exchange membranes
    6.
    发明授权
    Quaternization process for ion exchange membranes 失效
    离子交换膜的季铵化方法

    公开(公告)号:US4322501A

    公开(公告)日:1982-03-30

    申请号:US189414

    申请日:1980-09-22

    IPC分类号: C08J5/22 B01J41/12 C08F8/32

    CPC分类号: C08J5/2243 C08J2327/04

    摘要: A process is disclosed for quaternizing reactive substituent haloalkyl groups in hollow fiber polymer membranes wherein such haloalkyl groups are reacted with an amine quaternizing agent in the presence of an electrolyte compound and, preferably, in the presence of a cationic quaternary ammonium halide surfactant. In addition, there is disclosed a process of quaternizing the reactive haloalkyl groups in anisotropic hollow fiber polymer membranes by contacting and permeating a solution of an amine quaternizing agent from the surface of the membrane which is to be exposed to a dialysis feed solution.

    摘要翻译: 公开了一种在中空纤维聚合物膜中季铵化反应性取代基卤代烷基的方法,其中这样的卤代烷基在电解质化合物的存在下与胺季铵化剂反应,优选在阳离子季铵卤化物表面活性剂的存在下反应。 此外,公开了通过使胺季铵化剂的溶液从待暴露于透析进料溶液的膜的表面接触和渗透而使各向异性中空纤维聚合物膜中的反应性卤代烷基季铵化的方法。

    Microporous support for reverse osmosis membranes
    7.
    发明授权
    Microporous support for reverse osmosis membranes 失效
    微波支持逆向膜蛋白膜

    公开(公告)号:US3763055A

    公开(公告)日:1973-10-02

    申请号:US3763055D

    申请日:1971-07-07

    申请人: US INTERIOR

    IPC分类号: C08J9/26 C08F29/18 C08F47/08

    摘要: A MICROPOROUS SUPPORT STRUCTURE FOR REVERSE OSMOSIS MEMBRANES IS PREPARED BY COMPOUNDING (1) A WATER-INSOLUBLE THERMOPLASTIC RESIN FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE, VINYL CHLORIDE-PROPYLENE COPOLYMER AND A BLEND OF POLYVINYL CHLORIDE AND VINYL CHLORIDE-PROPYLENE COPOLYMER, (2) POLYVINYL METHYL ETHER AND (3) A SURFACTANT, FORMING THE RESULTING COMPOSITION INTO A SUITABLE SHAPE AND EXTRACTING WITH WATER TO REMOVE A SUBSTANTIAL PORTION OF THE POLYVINYL METHYL ETHER AND SURFACTANT, THEREBY FORMING A MICROPOROUS STRUCTURE.