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    • 61. 发明授权
    • Butadiene-base polymer and a process for producing the same
    • 丁二烯基聚合物及其制备方法
    • US4540744A
    • 1985-09-10
    • US701438
    • 1985-02-12
    • Noboru OshimaIsamu ShimizuYoshito Yoshimura
    • Noboru OshimaIsamu ShimizuYoshito Yoshimura
    • C08F4/00C08C19/44C08F4/42C08F8/42C08F36/00C08F36/04C08F236/00C08F236/10C08L9/00C08L21/00
    • C08C19/44C08F36/04Y10S525/901
    • A butadiene-base polymer containing a branched polymer through tin-carbon bond and a process for producing the same are disclosed. The butadiene-base polymer is produced by polymerizing 1,3-butadiene alone or 1,3-butadiene and aromatic vinyl compound in a hydrocarbon solvent in the presence of a Lewis base using an organolithium compound as an initiator and then coupling with a tin halide, and satisfies the following requirements:(1) a content of a bound aromatic vinyl compound in the butadiene-base polymer is 0-40% by weight;(2) a ratio of vinyl bond-containing butadiene unit in the toal butadiene unit of the butadiene-base polymer is 30-90%;(3) a ratio of the branched polymer in the butadiene-base polymer is at least 30% by weight; and(4) a ratio of a component having a molecular weight of less than 100,000 as polystyrene in the molecular weight distribution as measured by a gel permeation chromatography is 10-20% by weight.
    • 公开了含有通过锡 - 碳键的支化聚合物的丁二烯基聚合物及其制备方法。 丁二烯基聚合物通过使用有机锂化合物作为引发剂在路易斯碱存在下在烃溶剂中在单独的1,3-丁二烯和1,3-丁二烯和芳香族乙烯基化合物上聚合,然后与卤化锡 ,并且满足以下要求:(1)丁二烯基聚合物中结合的芳香族乙烯基化合物的含量为0〜40重量% (2)丁二烯类聚合物的丁二烯单元中的含乙烯基键的丁二烯单元的比例为30〜90%。 (3)丁二烯类聚合物中的支链聚合物的比例为30重量%以上。 和(4)通过凝胶渗透色谱法测定的分子量分布中聚苯乙烯的分子量小于100,000的成分的比例为10〜20重量%。
    • 64. 发明授权
    • Laminated ZnO photosensitive material
    • 层压ZnO感光材料
    • US4340658A
    • 1982-07-20
    • US240403
    • 1981-03-04
    • Eiichi InoueIsamu Shimizu
    • Eiichi InoueIsamu Shimizu
    • G03G5/08G03G5/043G03G5/14G03G5/087
    • G03G5/0436
    • Disclosed is a laminated photosensitive material for electrophotography, which comprises a conductive substrate, an undercoat layer formed of a composition comprising a resin binder having no substantial photoconductivity and photoconductive zinc oxide in an amount of 1 to 20 parts by weight per part by weight of the resin binder, an intermediate layer formed of a composition comprising a polyvinyl carbazole type photoconductor and photoconductive zinc oxide in an amount of 1 to 20 parts by weight per part by weight of the photoconductor and a topcoat layer comprised of a polyvinyl carbazole type photoconductor.This laminated photosensitive material has a very high sensitivity and a high initial charge voltage in combination and provides an image having a high density and a high contrast.
    • 公开了一种用于电子照相术的层压感光材料,其包括导电基材,由包含不具有实质光电导率的树脂粘合剂和光导电氧化锌的组合物形成的底涂层,其量为每重量份的1至20重量份 树脂粘合剂,由包含聚乙烯基咔唑型光电导体和光导电氧化锌的组合物形成的中间层,其量为每重量份感光体1至20重量份,以及由聚乙烯咔唑型感光体组成的外涂层。 该层压感光材料组合具有非常高的灵敏度和高的初始充电电压,并提供具有高密度和高对比度的图像。