Methylene bis(aluminum dihalides) useful as polymerization catalyst components
    9.
    发明授权
    Methylene bis(aluminum dihalides) useful as polymerization catalyst components 失效
    作为聚合催化剂组分有用的亚甲基双(二氢铝)

    公开(公告)号:US3700710A

    公开(公告)日:1972-10-24

    申请号:US3700710D

    申请日:1970-03-10

    申请人: MONSANTO CO

    摘要: An electrolytic process is described for making certain bis(halometal)methanes such as bis(dichloroaluminum)methane, Cl2AlCH2AlCl2, which is a new compound, and these compounds can be combined with transition metal compounds such as VOCl3 to make very active catalysts for polymerizing olefinic compounds such as ethylene. In the electrolytic process boron, a Group II, Group III A or Group IV A metal, e.g., aluminum, is used as an anode with an electrolyte such as HOAlCl2 in the presence of a methylene dihalide such as CH2Cl2 or a gem dihalide which does not readily dehydrohalogenate or alkylate. It is preferred to carry out the electrolysis in the presence of ethylene or another olefinic compound to promote conductivity. Also, it is preferred that all reactants be substantially free of water, except for small known amounts of water which may be added to promote electrolysis. Also, it is preferred to blanket the electrolysis with ethylene which also serves to promote conductivity, or an inert gas to exclude moisture, oxygen and other undesirable materials. The catalysts polymerize olefinic compounds to liquid or solid polymers depending on the particular catalyst used and the olefin being polymerized. The catalysts are promoted or modified by small amounts of water or other electron donor compounds.

    摘要翻译: 描述了一种用于制备某些双 - (卤代)甲烷如双(二氯铝)甲烷,Cl 2 AlCH 2 AlCl 2的新型化合物的电解方法,并且这些化合物可以与过渡金属化合物如VOCl 3结合,以制备用于聚合的非常活泼的催化剂 烯烃化合物如乙烯。 在电解过程中,在亚甲基二卤化物如CH 2 Cl 2或二氧化铱的存在下,使用II族IIIA族或IVA族金属(例如铝)作为具有电解质如HOAlCl 2的阳极, 不容易脱卤化氢或烷基化。 优选在乙烯或其它烯烃化合物的存在下进行电解以促进电导率。 而且,优选所有反应物基本上不含水,除了可以加入的少量已知量的水以促进电解。 此外,优选用还用于促进电导率的乙烯的电解或惰性气体来排除水分,氧气和其它不期望的物质。 根据所使用的具体催化剂和正在聚合的烯烃,催化剂将烯烃化合物聚合成液体或固体聚合物。 催化剂由少量的水或其他电子给体化合物促进或改性。

    Catalyst for polymerization of olefinic compounds
    10.
    发明授权
    Catalyst for polymerization of olefinic compounds 失效
    用于烯烃化合物聚合的催化剂

    公开(公告)号:US3677911A

    公开(公告)日:1972-07-18

    申请号:US3677911D

    申请日:1970-03-10

    申请人: MONSANTO CO

    摘要: AN ELECTROLYTIC PROCESS IS DESCRIBED FOR MAKING CERTAIN BIS-(HALOMETAL) METHANES SUCH AS BIS(DICHLOROALUMINUM) METHANE, CL2ALCH2ALCHL2, WHICH IS A NEW COMPOUND, AND THESE COMPOUNDS CAN BE COMBINED WITH TRANSITION METAL COMPOUNDS SUCH AS VOC13 TO MAKE VERY ACTIVE CATALYSTS FOR POLYMERIZING OLEFINIC COMPOUNDS SUCH AS ETHYLENE. IN THE ELECTROLYTIC PROCESS BORON, A GROUP II, GROUP III-A OR GROUP IV-A METAL, E.G., ALUMINUM, IS USED AS AN ANODE WITH AN ELECTROLYTE SUCH AS HOALCL2 IN THE PRESENCE OF A METHYLENE DIHALIDE SUCH AS CH2CL2 OR A GEM DIHALIDE WHICH DOES NOT READILY DEHYDROHALOGENATE OR ALKYLATE. IT IS PREFERRED TO CARRY OUT THE ELECTROLYSIS IN THE PRESENCE OF ETHYLENE OR ANOTHER OLEFINIC COMPOUND TO PROMOTE CONDUCTIVITY. ALSO, IT IS PREFERRED THAT ALL REACTANTS BE SUBSTANTIALLY FREE OF WATER, EXCEPT FOR SMALL KNOWN AMOUNTS OF WATER WHICH MAY BE ADDED TO PROMOTE ELECTROLYSIS. ALSO, IT IS PREFERED TO BLANKET THE ELECTROLYSIS WITH ETHYLENE WHICH ALSO SERVES TO PROMOTE CONDUCTIVITY, OR AN INERT GAS TO EXCLUDE MOISTURE, OXYGEN AND OTHER UNDESIRABLE MATERIALS. THE CATALYSTS POLYMERIZE OLEFINIC COMPOUNDS TO LIQUID OR SOLID POLYMERS DEPENDING ON THE PARTICULAR CATALYST USED AND THE OLEFIN BEING POLYMERIZED. THE CATALYSTS ARE PROMOTED OR MODIFIED BY SMALL AMOUNTS OF WATER OR OTHER ELECTRON DONOR COMPOUNDS.