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    • 12. 发明授权
    • Process for producing improved random propylene copolymers
    • 制备改进的无规丙烯共聚物的方法
    • US6013742A
    • 2000-01-11
    • US969278
    • 1997-11-13
    • Stephan HufferMeinolf KerstingFranz LanghauserRainer Alexander WernerPatrik MullerJurgen Kerth
    • Stephan HufferMeinolf KerstingFranz LanghauserRainer Alexander WernerPatrik MullerJurgen Kerth
    • C08F4/658C08F4/02C08F4/64C08F4/654C08F210/06C08F210/16D01F6/06C08F4/18
    • C08F210/16C08F210/06
    • A process for preparing random propylene copolymers containing copolymerized C.sub.2 -C.sub.10 -alk-1-enes by polymerization of propylene and C.sub.2 -C.sub.10 -alk-1-enes in the presence of a Ziegler-Natta catalyst system comprising a titanium-containing solid component a) comprising a compound of magnesium, a halogen, silica gel as support and a carboxylic ester as electron donor compound, and also, as cocatalysts, an aluminum compound b) and a further electron donor compound c), where propylene and the C.sub.2 -C.sub.10 -alk-1-enes are polymerized with one another at from 50 to 100.degree. C. at pressures in the range from 15 to 40 bar and mean residence times of from 0.5 to 5 hours and the support used in the titanium-containing solid component is a silica gel which has a mean particle diameter of from 5 to 200 .mu.m, a mean particle diameter of the primary particles of from 1 to 10 .mu.m and voids or channels having a mean diameter of from 1 to 10 .mu.m, which voids or channels have a macroscopic proportion by volume based on the total particle in the range from 5 to 20%.
    • 在含有含钛固体组分a的齐格勒 - 纳塔催化剂体系存在下,通过丙烯和C 2 -C 10 - 烷-1-烯的聚合制备含共聚的C 2 -C 10 - 烷-1-烯的无规丙烯共聚物的方法 ),其包含镁,卤素,硅胶作为载体的化合物和作为电子给体化合物的羧酸酯,以及作为助催化剂的铝化合物b)和另外的电子给体化合物c),其中丙烯和C 2 -C 10 α-烷-1-烯在50至100℃下以15至40巴的压力和0.5至5小时的平均停留时间彼此聚合,并且在含钛固体组分中使用的载体 是平均粒径为5〜200μm,一次粒子的平均粒径为1〜10μm,平均粒径为1〜10μm的通道的硅胶,其中, 空隙或通道具有基于体积的宏观比例 总颗粒在5至20%的范围内。
    • 16. 发明授权
    • Random propylene copolymer
    • 无规丙烯共聚物
    • US06221984B1
    • 2001-04-24
    • US09082056
    • 1998-05-21
    • Meinolf KerstingWerner SchöneFranz Langhauser
    • Meinolf KerstingWerner SchöneFranz Langhauser
    • C08F444
    • C08F10/00C08F210/06C08F210/16Y10S526/916C08F4/6546C08F2/34C08F210/08C08F2500/26
    • Random copolymers of propylene with ethylene and at least one C4-C10-alk-1-ene, having a melting point, determined by the DSC method, of less than or equal to 135° C., are obtainable by polymerization of propylene, ethylene and at least one C4-C10-alk-1-ene in the absence of a liquid reaction medium from the gas phase at from 50 to 100° C. and a pressure of from 15 to 40 bar in the presence of a Ziegler-Natta catalyst system comprising a) a titanium-containing solid component comprising at least one halogen-containing magnesium compound, an electron donor and an inorganic oxide as support, b) an aluminum compound and c) a further electron donor compound, wherein the ratio of the partial pressures of propylene and ethylene is set to from 20:1 to 100:1 and the ratio of the partial pressures of the C4-C10-alk-1-ene(s) and ethylene is set to from 2.5:1 to 20:1. A process for preparing such random copolymers is also provided, and they can be used in films, fibers or moldings.
    • 丙烯与乙烯和至少一种具有小于或等于135℃测定的熔点的C4-C10-烷-1-烯的无规共聚物可以通过丙烯,乙烯 和在不存在来自气相的液体反应介质的情况下的至少一种C 4 -C 10 - 烷-1-烯在50至100℃和15至40巴的压力下,在齐格勒 - 纳塔 催化剂体系包括a)含有至少一种含卤素的镁化合物,电子给体和作为载体的无机氧化物的含钛固体组分,b)铝化合物和c)另外的电子给体化合物,其中分压比 的丙烯和乙烯的比例设定为20:1至100:1,并且C4-C10-烷-1-烯和乙烯的分压比设定为2.5:1至20:1。 还提供了制备这种无规共聚物的方法,它们可以用于膜,纤维或模制品中。