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    Dry high flux semipermeable membranes
    1.
    发明授权
    Dry high flux semipermeable membranes 失效
    干燥高通量半透膜

    公开(公告)号：US4983291A

    公开(公告)日：1991-01-08

    申请号：US450637

    申请日：1989-12-14

    申请人： Michael M. Chau ,  William G. Light ,  Hong C. Chu

    发明人： Michael M. Chau ,  William G. Light ,  Hong C. Chu

    IPC分类号： B01D67/00 ,  B01D69/12

    CPC分类号： B01D67/0088 ,  B01D69/125

    摘要： High flux semipermeable membranes which comprises the polymerized reaction product within and/or on a porous support backing material may be prepared by contacting the porous support such as a polysulfone with an aqueous solution of a polyamine which may, if so desired, contain a polar aprotic solvent not reactive with the amines, a polyhydric compound and an acid acceptor. The surface of the coated support is freed of excess solution and thereafter contacted with an organic solution of a polyacyl halide for a period of time sufficient to form a polymerized reaction product within and/or on the support material. The resulting composite is then treated with a hydroxy polycarboxylic acid, polyaminoalkylene polycarboxylic acid, suffonic acid, amine salts of acids, amino acid, amino acid salt, polymeric acid and inorganic acid, before drying of the membrane. This will enable the membrane to be stored in a dry manner prior to use thereof in a separation process. The resultant membrane composite may be used in separation processes such as desalination of brackish or sea water or the softening of domestic hard water.

    摘要翻译： 在多孔载体背衬材料内和/或多孔载体背衬材料上包含聚合的反应产物的高通量半透膜可以通过使诸如聚砜的多孔载体与多胺的水溶液接触来制备，如果需要，其可以含有极性非质子 不与胺反应的溶剂，多羟基化合物和酸受体。 涂覆的载体的表面没有过量的溶液，然后与多酰基卤的有机溶液接触足以在载体材料内和/或载体材料上形成聚合反应产物的时间。 然后在干燥膜之前，用羟基多元羧酸，聚氨基亚烷基多元羧酸，己酸，酸的胺盐，氨基酸，氨基酸盐，聚合酸和无机酸处理得到的复合物。 这将使膜能够在分离过程中使用之前以干燥方式储存。 所得到的膜复合物可以用于分离过程，例如咸水或海水的淡化或家庭硬水的软化。

    Modified piperidines as ultraviolet light stabilizers
    3.
    发明授权
    Modified piperidines as ultraviolet light stabilizers 失效
    改性哌啶类作为紫外光稳定剂

    公开(公告)号：US4696959A

    公开(公告)日：1987-09-29

    申请号：US536143

    申请日：1983-09-26

    申请人： Wen-Hsuan Chang ,  Michael M. Chau ,  Robert Piccirilli

    发明人： Wen-Hsuan Chang ,  Michael M. Chau ,  Robert Piccirilli

    IPC分类号： C08K5/00 ,  C07D211/46 ,  C07D401/12 ,  C07D401/14 ,  C07D487/04 ,  C08G8/28 ,  C08G12/40 ,  C08G63/91 ,  C08G64/42 ,  C08K5/34 ,  C08K5/3412 ,  C08K5/3435 ,  C08L33/00 ,  C08L33/02 ,  C08L67/00 ,  C09K3/00 ,  C07D251/00 ,  C09K15/16

    CPC分类号： C07D401/12 ,  C07D487/04 ,  C08G12/40 ,  C08G63/91 ,  C08G64/42 ,  C08G8/28 ,  C08K5/3435

    摘要： A composition of matter contains as a principal component a material which acts as an ultraviolet light stabilizer. The ultraviolet light stabilizer is formed from the reaction of (a) a methylol or alkoxy alkyl-containing material, and (b) an alkyl substituted piperidine containing material which is represented by the following structural formula: ##STR1## R" is hydrogen or C.sub.1 to C.sub.6 alkyl, R.sub.10 is hydrogen or methyl,Y is a radical derived from a material selected from the group consisting of amino substituted triazines, ureas, glycolurils, phenols, and amides of the formula ##STR2## R' is hydrogen or C.sub.1 to C.sub.12 alkyl and R is an aliphatic, cycloaliphatic, or olefinic radical, or an acrylic polymer moiety having at least one group selected from hydroxyl, carboxyl, amido, and ureido, said reaction proceeding between a methylol or alkoxy alkyl group of (a) and the group selected from hydroxyl, carboxyl, amido and ureido of (b).

    摘要翻译： 物质成分含有作为紫外光稳定剂的材料作为主要成分。 紫外光稳定剂是由（a）含羟甲基或含烷氧基烷基的材料的反应形成的，（b）由以下结构式表示的含烷基取代的含哌啶的物质： C 1至C 6烷基，R 10为氢或甲基，Y为衍生自下列物质的基团：氨基取代的三嗪，脲，甘脲，酚和酰胺，其中R 1为氢或C 1至 C12烷基和R是脂族，脂环族或烯烃基团或具有至少一个选自羟基，羧基，酰胺基和脲基的基团的丙烯酸类聚合物部分，所述反应在（a）和（a）的羟甲基或烷氧基烷基和 该基团选自（b）的羟基，羧基，酰氨基和脲基。

    Aminoplast curable coating compositions containing sulfonic acid esters as latent acid catalysts
    8.
    发明授权
    Aminoplast curable coating compositions containing sulfonic acid esters as latent acid catalysts 失效
    含有磺酸酯作为潜酸催化剂的氨基塑料可固化涂料组合物

    公开(公告)号：US4477618A

    公开(公告)日：1984-10-16

    申请号：US427402

    申请日：1982-09-29

    申请人： Debra L. Singer ,  Gregory J. McCollum ,  Rostyslaw Dowbenko ,  Roger M. Christenson ,  Michael M. Chau ,  Wen-Hsuan Chang

    发明人： Debra L. Singer ,  Gregory J. McCollum ,  Rostyslaw Dowbenko ,  Roger M. Christenson ,  Michael M. Chau ,  Wen-Hsuan Chang

    IPC分类号： C08F8/36 ,  C08K5/42 ,  C09D161/20

    CPC分类号： C07C309/00 ,  C08K5/42 ,  C09D161/20

    摘要： A high solids, organic solvent based, sprayable coating composition which is capable of acid catalyzed crosslinking is composed of an active hydrogen-containing resin, a curing agent present externally and/or internally as a part of the active hydrogen-containing resin, and a catalytic amount of a non-ionic ester of a sulfonic acid. The sulfonic acid ester is represented by the following structural formula: ##STR1## wherein: Z is a radical selected from the group consisting of amino and an organic radical, said organic radical being connected to the sulfur atom by a carbon atom; ##STR2## C.sub.3 -C.sub.20 cycloalkyl; and R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 are independently hydrogen or an organic radical. These groups can be particularly described as follows:R.sub.1 is hydrogen, carboalkoxy, C.sub.3 -C.sub.20 alkyl, C.sub.6 -C.sub.18 aryl, or C.sub.3 -C.sub.20 cycloalkyl;R.sub.2 is hydrogen, carboalkoxy, C.sub.3 -C.sub.20 alkyl, C.sub.6 -C.sub.18 aryl, or C.sub.3 -C.sub.20 cycloalkyl;R.sub.3 is hydrogen, carboalkoxy, acyloxy, N-alkylcarbamyloxy, N-arylcarbamyloxy, C.sub.3 -C.sub.20 alkyl, C.sub.6 -C.sub.18 aryl, or C.sub.3 -C.sub.20 cycloalkyl;R.sub.4 is hydrogen, carboalkoxy, acyloxy, N-alkylcarbamyloxy, N-arylcarbamyloxy, C.sub.3 -C.sub.20 alkyl, C.sub.6 -C.sub.18 aryl, or C.sub.3 -C.sub.20 cycloalkyl, andR.sub.5 is hydrogen, carboalkoxy, acyloxy, N-alkylcarbamyloxy, N-arylcarbamyloxy, C.sub.3 -C.sub.20 alkyl, C.sub.6 -C.sub.18 aryl, or C.sub.3 -C.sub.20 cycloalkyl.

    摘要翻译： 能够进行酸催化交联的高固体，有机溶剂型可喷涂涂料组合物由含活性氢的树脂，在外部和/或内部作为含活性氢树脂的一部分存在的固化剂组成，以及 催化量的磺酸的非离子酯。 磺酸酯由以下结构式表示：其中：Z是选自氨基和有机基团的基团，所述有机基团通过碳原子连接到硫原子上; C3-C20环烷基; 并且R 1，R 2，R 3，R 4，R 5独立地为氢或有机基团。 这些基团可以特别描述如下：R 1是氢，烷氧羰基，C 3 -C 20烷基，C 6 -C 18芳基或C 3 -C 20环烷基; R2是氢，烷氧羰基，C3-C20烷基，C6-C18芳基或C3-C20环烷基; R3是氢，烷氧羰基，酰氧基，N-烷基氨基甲酰氧基，N-芳基氨基甲酰氧基，C3-C20烷基，C6-C18芳基或C3-C20环烷基; R4是氢，烷氧羰基，酰氧基，N-烷基氨基甲酰氧基，N-芳基氨基甲酰氧基，C3-C20烷基，C6-C18芳基或C3-C20环烷基，R5是氢，烷氧羰基，酰氧基，N-烷基氨基甲酰氧基，N-芳基氨基甲酰氧基，C3 -C 20烷基，C 6 -C 18芳基或C 3 -C 20环烷基。