Solution process for preparation hydrophobically functionalized cationic
polymers (C-2691)
    1.
    发明授权
    Solution process for preparation hydrophobically functionalized cationic polymers (C-2691) 失效
    制备疏水官能化阳离子聚合物的溶液方法(C-2691)

    公开(公告)号:US5362827A

    公开(公告)日:1994-11-08

    申请号:US919805

    申请日:1992-07-27

    摘要: This invention provides a process for preparing novel hydrophobically associating polymers containing cationic functionality which are useful for clean-up of waste waters containing organic contaminants. These water soluble polymers contain both water soluble and water insoluble monomers. The water soluble monomers are acrylamide (AM) and a salt of an unsaturated amine base (C), and the water insoluble monomer is a higher alkyl(meth)acrylamide or alkyl(meth)acrylate (R). These polymers are referred to as CRAM. The process relies on the dissolution of the water insoluble monomer(s) into an aqueous solution of water soluble monomers by means of a water miscible mutual cosolvent. The type and concentration of miscible solvents are chosen to produce a clear, uniform, homogeneous aqueous solution of the hydrophobic monomers in the presence of both nonionic and cationic water soluble monomers and, in addition, the reaction medium remains a clear, uniform, homogeneous mixture with no phase separation as the reaction proceeds to completion. Redox or free radical initiators are used to copolymerize both the water soluble and water insoluble monomers, forming terpolymers of ethylenically unsaturated amine base salts, alkyl(meth)acrylamides of alkyl(meth)acrylates and acrylamide. These polymers provide exceptional clean-up of waste waters containing organic contaminants. Also they are very effective for resolving oil-in-water emulsion, as such as those found in oil production.

    摘要翻译: 本发明提供了一种制备新颖的含有阳离子官能团的疏水缔合聚合物的方法,该方法可用于清除含有机污染物的废水。 这些水溶性聚合物含有水溶性和水不溶性单体。 水溶性单体是丙烯酰胺(AM)和不饱和胺碱(C)的盐,水不溶性单体是高级烷基(甲基)丙烯酰胺或(甲基)丙烯酸烷基酯(R)。 这些聚合物被称为CRAM。 该方法依赖于通过水混溶相互共溶剂将水不溶性单体溶解到水溶性单体的水溶液中。 选择混溶溶剂的类型和浓度以在非离子和阳离子水溶性单体存在下产生疏水单体的透明,均匀的均匀水溶液,此外,反应介质保持澄清均匀的均匀混合物 随着反应进行到完成,没有相分离。 氧化还原或自由基引发剂用于共聚水溶性和水不溶性单体,形成烯属不饱和胺碱盐的三元共聚物,(甲基)丙烯酸烷基酯(甲基)丙烯酸烷基酯(甲基)丙烯酰胺和丙烯酰胺。 这些聚合物可以清除含有机污染物的废水。 此外,它们非常有效地解决水包油乳液,如在石油生产中发现的那些。

    Lamp socket
    2.
    发明授权
    Lamp socket 失效
    灯座

    公开(公告)号:US5803766A

    公开(公告)日:1998-09-08

    申请号:US898596

    申请日:1997-07-22

    申请人: Henry W. H. Yang

    发明人: Henry W. H. Yang

    摘要: A tubular lamp socket includes a body provided with two different selectable kinds of structures for fixing on a wall. One kind is using screws, and another is using engage arms. If a wall has an open hole, the engage arms can be used, and if otherwise, screws can be used. Thus it has convenience in fixing on a wall.

    摘要翻译: 管状灯座包括具有用于固定在墙壁上的两种不同可选择的结构的主体。 一种是使用螺丝,另一种是使用接合臂。 如果墙壁有开孔,则可以使用接合臂,否则可以使用螺钉。 因此,它在墙上固定方便。