Continuous production of ethylene homopolymers
    1.
    发明授权
    Continuous production of ethylene homopolymers 失效
    连续生产乙烯均聚物

    公开(公告)号:US3917577A

    公开(公告)日:1975-11-04

    申请号:US17532471

    申请日:1971-08-26

    申请人: BASF AG

    IPC分类号: C08F110/02 C08F4/34 C08F10/02

    CPC分类号: C08F110/02 C08F2/34 C08F2/38

    摘要: A process for the continuous production of ethylene homopolymers by polymerization of ethylene by means of a polymerization initiator and a polymerization regulator at elevated temperature and superatmospheric pressure in a tubular reactor having two or three successive reaction zones, a mixture of ethylene, the polymerization initiator and the polymerization regulator being introduced continuously at the beginning of each reaction zone. It is characteristic of the process according to the invention that special conditions as regards temperature, pressure, polymerization initiator and polymerization regulator are maintained in the individual reaction zones.

    摘要翻译: 在具有两个或三个连续反应区域的管式反应器中,通过聚合引发剂和聚合调节剂在升高的温度和超大气压下聚合乙烯来连续生产乙烯均聚物的方法,乙烯,聚合引发剂和 聚合调节剂在每个反应区的开始处连续引入。 根据本发明的方法的特征在于,在各个反应区域中保持关于温度,压力,聚合引发剂和聚合调节剂的特殊条件。

    Polymerization of ethylene with 3-methyl-3-buten-1-ol
    9.
    发明授权
    Polymerization of ethylene with 3-methyl-3-buten-1-ol 失效
    乙烯与3-甲基-3-丁烯-1-OL的聚合

    公开(公告)号:US3664988A

    公开(公告)日:1972-05-23

    申请号:US3664988D

    申请日:1969-12-05

    申请人: BASF AG

    CPC分类号: C08F16/00 C08F10/00 C08F4/28

    摘要: A process for the production of ethylene copolymers containing hydroxyl groups which contain polymerized units of ethylene, an alkenol and if desired other monomers copolymerizable with ethylene, by copolymerization of a mixture of ethylene, alkenol and the other copolymerizable monomer(s), if any, at superatmospheric pressure and elevated temperature under the action of a free-radical polymerization initiator in the presence or absence of a polymerization regulator. 3-methyl-3-buten-1-ol is used as the alkenol. The process has the advantage that it is more easily carried out than comparable prior art methods and that it gives copolymers containing a relatively high proportion of polymerized units of alkenol.