Methods of Preparing a Catalyst
    12.
    发明申请

    公开(公告)号:US20200377630A1

    公开(公告)日:2020-12-03

    申请号:US16990820

    申请日:2020-08-11

    Abstract: A hydrogel comprising water, and a plurality of titanium-silica-chromium nanoparticle agglomerates, wherein each titanium-silica-chromium nanoparticle agglomerate is an agglomeration of titanium-silica-chromium nanoparticles, the agglomerates having an average titanium penetration depth designated x with a coefficient of variation for the average titanium penetration depth of less than about 1.0 wherein a silica content of the hydrogel is of from about 10 wt. % to about 35 wt. % based on a total weight of the hydrogel.

    Methods of Preparing a Catalyst
    13.
    发明申请

    公开(公告)号:US20200369803A1

    公开(公告)日:2020-11-26

    申请号:US16990816

    申请日:2020-08-11

    Abstract: A hydrogel comprising water, and a plurality of titanium-silica nanoparticle agglomerates, wherein each titanium-silica nanoparticle agglomerate is an agglomeration of titanium-silica nanoparticles, the agglomerates having an average titanium loading designated x with a coefficient of variation for the average titanium loading of less than about 1.0, wherein a silica content of the hydrogel is of from about 10 wt. % to about 35 wt. % based on a total weight of the hydrogel.

    Novel Medium Density Polyethylene Compositions
    16.
    发明申请
    Novel Medium Density Polyethylene Compositions 有权
    新型中等密度聚乙烯组合物

    公开(公告)号:US20140256901A1

    公开(公告)日:2014-09-11

    申请号:US13794052

    申请日:2013-03-11

    Abstract: An ethylene alpha-olefin copolymer having (a) a density of from about 0.910 g/cc to about 0.940 g/cc; (b) a weight average molecular weight of from about 150,000 g/mol to about 300,000 g/mol; and (c) a melt index at a load of 2.16 kg of from about 0.01 dg/10 min. to about 0.5 dg/min.; wherein a 1 mil blown film formed from the polymer composition is characterized by (i) a Dart Impact strength greater than about 175 g/mil; (ii) an Elmendorf machine direction tear strength greater than about 20 g/mil; and (iii) an Elmendorf transverse direction tear strength greater than about 475 g/mil.

    Abstract translation: 一种乙烯α-烯烃共聚物,其具有(a)约0.910g / cc至约0.940g / cc的密度; (b)重均分子量为约150,000g / mol至约300,000g / mol; 和(c)2.16kg负荷下的熔体指数为约0.01dg / 10min。 至约0.5dg / min。 其中由所述聚合物组合物形成的1密耳吹塑膜的特征在于(i)大于约175g / mil的落镖冲击强度; (ii)Elmendorf机器方向撕裂强度大于约20g / mil; 和(iii)Elmendorf横向撕裂强度大于约475g / mil。

    Methods of Preparing a Catalyst
    17.
    发明申请

    公开(公告)号:US20220144982A1

    公开(公告)日:2022-05-12

    申请号:US17579777

    申请日:2022-01-20

    Abstract: A hydrogel comprising water, and a plurality of titanium-silica-chromium nanoparticle agglomerates, wherein each titanium-silica-chromium nanoparticle agglomerate is an agglomeration of titanium-silica-chromium nanoparticles, the agglomerates having an average titanium penetration depth designated x with a coefficient of variation for the average titanium penetration depth of less than about 1.0 wherein a silica content of the hydrogel is of from about 10 wt. % to about 35 wt. % based on a total weight of the hydrogel.

    Polymerization Catalysts and Polymers
    20.
    发明申请
    Polymerization Catalysts and Polymers 有权
    聚合催化剂和聚合物

    公开(公告)号:US20140275457A1

    公开(公告)日:2014-09-18

    申请号:US13799516

    申请日:2013-03-13

    Abstract: A method comprising contacting a support material with a transition metal compound to produce a mixture; thermally treating the mixture in the presence of oxygen at a temperature in a range of from about 100° C. to about 500° C. for a period of from about 1 hour to about 10 hours, wherein at least a portion of the transition metal sublimes onto the support material to produce a support material comprising a dispersed transition metal; and thermally treating the support material comprising the dispersed transition metal in an oxidizing atmosphere at a temperature in a range of from about 550° C. to about 900° C. for a period of from about 1 hour to about 10 hours to produce a polymerization catalyst.

    Abstract translation: 一种方法,包括使支撑材料与过渡金属化合物接触以产生混合物; 在氧气存在下,在约100℃至约500℃的温度范围内热处理混合物约1小时至约10小时,其中至少一部分过渡金属 升华到支撑材料上以产生包含分散的过渡金属的支撑材料; 并在包含分散的过渡金属的载体材料的氧化气氛中,在约550℃至约900℃的温度范围内热处理约1小时至约10小时,以产生聚合 催化剂。

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