Process for the production of molecular sieve granulates
    1.
    发明授权
    Process for the production of molecular sieve granulates 失效
    生产分子筛颗粒的方法

    公开(公告)号:US5098448A

    公开(公告)日:1992-03-24

    申请号:US680601

    申请日:1991-04-01

    CPC classification number: B01J2/14 B01J2/28 B01J20/183

    Abstract: A process for the production of silica-bound zeolite granulates is disclosed, wherein zeolite to be formed into a granulate is mixed with silica sol. The process is carried out by adding aqueous alkali metal silicate to the silica sol immediately before the silica sol is mixed with the solid zeolite to be granulated. By the described process, granulates of various grain sizes can be obtained, and the resultant granulates can have a narrow grain size distribution.

    Abstract translation: 公开了一种生产二氧化硅结合的沸石颗粒的方法,其中将形成颗粒的沸石与硅溶胶混合。 该方法是在将二氧化硅溶胶与要造粒的固体沸石混合之前,向二氧化硅溶胶中加入碱金属硅酸盐。 通过所述方法,可以获得各种粒径的颗粒,并且所得到的颗粒可以具有窄的粒度分布。

    Stabilizing pigmented lacquers with zeolites
    2.
    发明授权
    Stabilizing pigmented lacquers with zeolites 失效
    用沸石稳定着色漆

    公开(公告)号:US4220567A

    公开(公告)日:1980-09-02

    申请号:US911010

    申请日:1978-05-30

    CPC classification number: C09D7/02 Y10S260/33

    Abstract: A lacquer comprising an organic binder, at least one pigment or filler, and a zeolite in an amount sufficient to increase the dispersibility of the pigment or filler. Advantageously the pigment is at least one of titanium dioxide, iron oxide and mixed-phase rutile, and the binder is a polyester. Desirably the pigment is present in from about 1 to 5% by volume of the pigment plus any filler and its average particle size is from about 1 to 3 .mu.m.

    Abstract translation: 一种漆,其包含有机粘合剂,至少一种颜料或填料,以及足以提高颜料或填料分散性的量的沸石。 有利地,颜料是二氧化钛,氧化铁和混合相金红石中的至少一种,并且粘合剂是聚酯。 颜料的含量优选为颜料加上任何填料的约1至5体积%,其平均粒度为约1至3μm。

    Production of synthetic zeolite of faujasite structure
    3.
    发明授权
    Production of synthetic zeolite of faujasite structure 失效
    八面沸石结构合成沸石的生产

    公开(公告)号:US4007253A

    公开(公告)日:1977-02-08

    申请号:US598980

    申请日:1975-07-25

    CPC classification number: C01B39/28 Y10S423/21

    Abstract: A process for the production of synthetic zeolite with the crystal structure of faujasite and with a composition corresponding to the formula:Na.sub.2 O . Al.sub.2 O.sub.3 . (2.5 .+-. 0.5) SiO.sub.2 . n H.sub.2 O(n = 0 to 8)comprising forming a reaction mixture containing Na.sub.2 O, Al.sub.2 O.sub.3, SiO.sub.2 and H.sub.2 O at a temperature of about 60.degree. to 105.degree. C in the presence of about 1 to 20% of finely divided zeolite A based on the weight of Na.sub.2 O + Al.sub.2 O.sub.3 + SiO.sub.2, thereby to form a precipitate which crystallizes to form a synthetic zeolite of faujasite structure. Advantageously the molar ratios of the oxides in the reaction mixture, exclusive of the added zeolite A, are approximately:SiO.sub.2 /Al.sub.2 O.sub.3 = 3 to 5Na.sub.2 O/SiO.sub.2 = 1.2 to 1.5H.sub.2 O/Na.sub.2 O = 35 to 45.Even if the mass is stirred during crystallization, little or no phillipsite is produced.

    Abstract translation: 一种制备具有八面沸石晶体结构的合成沸石的方法,其组成对应于下式:

    Colloidal metal oxides having blocked isocyanate groups
    10.
    发明授权
    Colloidal metal oxides having blocked isocyanate groups 失效
    具有封端异氰酸酯基团的胶体金属氧化物

    公开(公告)号:US5998504A

    公开(公告)日:1999-12-07

    申请号:US54590

    申请日:1998-04-03

    Abstract: The present invention relates to colloidal metal oxides having blocked isocyanate groups, which are based on the reaction product ofA) blocked isocyanate group-containing silanes corresponding to formula (I) ##STR1## wherein R represents hydrogen or an organic group having 1 to 40 carbon atoms,X, Y and Z represent identical or different organic groups having 1 to 30 carbon atoms which are inert to isocyanate groups below 100.degree. C., provided that at least one of these groups is a C.sub.1 -C.sub.4 -alkoxy group,Q represents an organic group which contains at least one isocyanate group reacted with a blocking agent andn is 2, 3 or 4 withB) colloidal metal oxides selected from Al, Si, Ti, Ta, W, Hf, Zr, Sn and Y.The present invention also relates to the use of modified metal oxides, either alone or in combination with compounds containing at least two isocyanate-reactive groups, for the preparation of optionally expanded polyurethane plastics, lacquers or coating agents.

    Abstract translation: 本发明涉及具有封端异氰酸酯基团的胶态金属氧化物,其基于A)封端异氰酸酯基硅烷对应于其中R表示氢或具有1至40个碳原子的有机基团的式(I)的反应产物, X,Y和Z表示相同或不同的具有1至30个碳原子的有机基团,其对于低于100℃的异氰酸酯基团是惰性的,条件是这些基团中的至少一个是C 1 -C 4 - 烷氧基,Q表示有机 含有至少一个与封闭剂反应的异氰酸酯基团的基团,n为2,3或4,B)选自Al,Si,Ti,Ta,W,Hf,Zr,Sn和Y的胶态金属氧化物。本发明 还涉及使用改性金属氧化物,单独或与含有至少两个异氰酸酯反应性基团的化合物组合,用于制备任选发泡的聚氨酯塑料,漆或涂层剂。

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