Silver halide color photographic light sensitive-material
    6.
    发明授权
    Silver halide color photographic light sensitive-material 失效
    卤化银彩色感光材料

    公开(公告)号:US4639410A

    公开(公告)日:1987-01-27

    申请号:US697458

    申请日:1985-02-01

    摘要: A silver halide color photographic light-sensitive material comprises a support and at least one light-sensitive layer. This layer has a plurality of silver halide emulsion layers substantially identical in color sensitivity, but differing in speed. The light-sensitive layer is comprised substantially of monodispersed silver halide emulsions A and B, each containing silver halide particles of the core/shell-type. The silver halide particle sizes of emulsions B and A have a ratio, when multiplied by 100, of less than 70 and the silver halide particles of emulsion B have a silver iodide content in their core that is not less than 5 mole % smaller than that of the core of the silver halide particles of emulsion A.

    摘要翻译: 卤化银彩色照相感光材料包括载体和至少一个感光层。 该层具有基本上相同颜色灵敏度但速度不同的多个卤化银乳剂层。 感光层基本上由单分散的卤化银乳剂A和B组成,每一种都含有核/壳型的卤化银颗粒。 乳液B和A的卤化银颗粒尺寸当乘以100时小于70,并且乳液B的卤化银颗粒的核心中的碘化银含量比不小于5摩尔%小于5摩尔% 的乳剂A的卤化银颗粒的核心。

    Metallocene compound, process for preparing metallocene compound, olefin polymerization catalyst, process for preparing polyolefin, and polyolefin
    9.
    发明授权
    Metallocene compound, process for preparing metallocene compound, olefin polymerization catalyst, process for preparing polyolefin, and polyolefin 有权
    金属茂化合物,制备茂金属化合物的方法,烯烃聚合催化剂,聚烯烃的制备方法和聚烯烃

    公开(公告)号:US07449533B2

    公开(公告)日:2008-11-11

    申请号:US11054597

    申请日:2005-02-10

    摘要: The metallocene compound according to the invention and the olefin polymerization catalyst containing the compound are intended to produce a catalyst capable of preparing an isotactic polymer with a high polymerization activity. The metallocene compound contains a substituted cyclopentadienyl group and a (substituted) fluorenyl group and has a structure wherein these groups are bridged by a hydrocarbon group or the like. The process for preparing a metallocene compound according to the invention is intended to selectively prepare a specific metallocene compound so as not to produce an isomer, and in this process an intermediate product is synthesized by a specific method. The process for preparing a polyolefin according to the invention is intended to prepare a polyolefin having excellent impact resistance and transparency, and this process comprises homopolymerizing an α-olefin of 3 to 8 carbon-atoms or copolymerizing an olefin of 3 to 8 carbon atoms and another α-olefin in the presence of an olefin polymerization catalyst containing the above-mentioned metallocene compound.

    摘要翻译: 根据本发明的茂金属化合物和含有该化合物的烯烃聚合催化剂旨在制备能够制备具有高聚合活性的全同立构聚合物的催化剂。 茂金属化合物含有取代的环戊二烯基和(取代的)芴基,并且具有这些基团被烃基等桥接的结构。 根据本发明的制备茂金属化合物的方法是为了选择性地制备特定的茂金属化合物以便不产生异构体,并且在该方法中通过具体方法合成中间产物。 根据本发明的制备聚烯烃的方法旨在制备具有优异的耐冲击性和透明性的聚烯烃,该方法包括使3至8个碳原子的α-烯烃均聚或将3至8个碳原子的烯烃共聚,和 在含有上述茂金属化合物的烯烃聚合催化剂存在下,制备另一种α-烯烃。