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    • 3. 发明申请
    • X-RAY ABSORBING COMPOSITIONS AND METHODS OF MAKING THE SAME
    • X射线吸收组合物及其制备方法
    • US20120213994A1
    • 2012-08-23
    • US13351550
    • 2012-01-17
    • Huma Rahim JafryAndrew Ross Barron
    • Huma Rahim JafryAndrew Ross Barron
    • G21F1/10G21F1/02D01F11/12B82Y40/00B82Y30/00
    • G21F1/08B82Y30/00B82Y40/00D01F11/12D01F11/122D01F11/123G21F1/10Y10T428/2918
    • Various embodiments of the present invention pertain to x-ray absorbing compositions that comprise a carbon material associated with an x-ray absorbing material. In some embodiments, the x-ray absorbing material is selected from the group consisting of lead-based compounds, bismuth-based compounds, and combinations thereof. In some embodiments, the carbon material is selected from the group consisting of carbon nanotubes, graphenes, carbon fibers, amorphous carbons, and combinations thereof. In further embodiments, the carbon materials of the present invention may also be treated with a surfactant, an acid, polymers or combinations thereof. In some embodiments, the carbon materials of the present invention may be further associated with a metal oxide. Additional embodiments of the present invention pertain to methods of making the aforementioned x-ray absorbing compositions. Such methods generally include associating a carbon material with an x-ray absorbing material.
    • 本发明的各种实施方案涉及包含与X射线吸收材料相关联的碳材料的X射线吸收组合物。 在一些实施方案中,X射线吸收材料选自铅基化合物,铋基化合物及其组合。 在一些实施方案中,碳材料选自碳纳米管,石墨烯,碳纤维,无定形碳及其组合。 在另外的实施方案中,本发明的碳材料也可以用表面活性剂,酸,聚合物或其组合进行处理。 在一些实施方案中,本发明的碳材料可以进一步与金属氧化物相关联。 本发明的另外的实施方案涉及制备上述x射线吸收组合物的方法。 这些方法通常包括将碳材料与x射线吸收材料相关联。
    • 5. 发明授权
    • Supra-molecular alkylalumoxanes
    • 超分子烷基铝氧烷
    • US06322890B1
    • 2001-11-27
    • US09277642
    • 1999-03-26
    • Andrew Ross BarronStephen J. Obrey
    • Andrew Ross BarronStephen J. Obrey
    • B32B516
    • C08F10/00C07F5/066C08F4/65925Y10T428/2982Y10T428/2991C08F4/6428C08F4/65916C08F4/65912
    • Heterogeneous solid supra-molecular alkylalumoxanes. A supra-molecular architecture of a nano-particle foundation on which an alkylalumoxane is built. Supra-molecular alkylalumoxanes comprise (a) an aluminum-oxide nanoparticle, (b) a linkage unit, and (c) an alkylalumoxane. Supra-molecular alkylalumoxanes are prepared by the reaction of a chemically modified aluminum-oxygen nanoparticle with either a pre-formed alkylalumoxane or an alkylaluminum compound, with subsequent hydrolysis or reaction with other alkylalumoxane yielding reagents. The supra-molecular alkylalumoxanes are active as catalysts for the polymerization of organic monomers and as co-catalysts with transition metal components for the polymerization of olefins.
    • 非均相固体超分子烷基铝氧烷。 纳米颗粒基础的超分子结构,其上建立了烷基铝氧烷。 超分子烷基铝氧烷包含(a)氧化铝纳米颗粒,(b)连接单元和(c)烷基铝氧烷。 超分子烷基铝氧烷通过化学改性的铝 - 氧纳米颗粒与预形成的烷基铝氧烷或烷基铝化合物的反应制备,随后水解或与其它烷基铝氧烷反应产生试剂。 超分子烷基铝氧烷作为有机单体聚合的催化剂和作为烯烃聚合的过渡金属组分的助催化剂是有活性的。