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    • 1. 发明授权
    • Syndiotactic propylene copolymer, preparation of the same, and resin
composition containing the same
    • 间同立构丙烯共聚物,其制备方法和含有它们的树脂组合物
    • US5534595A
    • 1996-07-09
    • US468316
    • 1995-06-06
    • Tadashi AsanumaHiroshi MatsuzawaTateyo SasakiKaoru Kawanishi
    • Tadashi AsanumaHiroshi MatsuzawaTateyo SasakiKaoru Kawanishi
    • C08F8/00C08F4/642C08F210/06
    • C08F8/00
    • Disclosed is a syndiotactic propylene copolymer containing 0.01 to 40 mol % of olefin units containing --OH group in the side chain. Of absorption peaks attributed to the methyl groups of the propylene units on an absorption spectrum by .sup.13 C-NMR of the copolymer, the intensity of an absorption peak observed at about 20.2 ppm is 0.3 or more of the intensity of absorption peaks of all the methyl groups attributed to the propylene units. The copolymer is produced by copolymerizing propylene and an alkenylsilane or alkenylborane compound in the presence of a catalyst system comprising an asymmetric ligands-having transition metal compound and an aluminoxane, followed by heat-treating the resulting propylene-alkenylsilane copolymer in the presence of a trialkylamine oxide and KF.HF or oxidizing and decomposing the resulting propylene-alkenylborane compound copolymer. Also disclosed is a resin composition comprising the copolymer and other polyolefin(s).
    • 公开了含侧链中含有-OH基的烯烃单元为0.01〜40摩尔%的间同立构丙烯共聚物。 归因于丙烯单元的甲基的吸收峰在共聚物的13 C-NMR吸收光谱上,在约20.2ppm处观察到的吸收峰的强度为所有甲基的吸收峰的强度的0.3以上 归因于丙烯单元。 共聚物通过在包含不对称配体的过渡金属化合物和铝氧烷的催化剂体系的存在下共聚丙烯和烯基硅烷或烯基硼烷化合物,然后在三烷基胺存在下热处理所得的丙烯 - 链烯基硅烷共聚物 氧化物和KF.HF,或氧化和分解得到的丙烯 - 烯基硼烷化合物共聚物。 还公开了包含共聚物和其它聚烯烃的树脂组合物。