Method for manufacturing ethylene-vinyl acetate copolymer and apparatus for manufacturing the same
    16.
    发明公开
    Method for manufacturing ethylene-vinyl acetate copolymer and apparatus for manufacturing the same 有权
    一种生产用于其生产的乙烯 - 乙酸乙烯酯共聚物和设备处理

    公开(公告)号:EP1245595A2

    公开(公告)日:2002-10-02

    申请号:EP02252248.6

    申请日:2002-03-27

    申请人: Kuraray Co., Ltd.

    IPC分类号: C08F210/02 C08F218/08

    摘要: The present invention provides a method for manufacturing an ethylene-vinyl acetate copolymer (EVA) in a polymerization solution in a vessel. The polymerization solution includes ethylene, vinyl acetate, methanol and a polymerization initiator. This method includes: cooling a gas including a vapor evaporated from the polymerization solution whereby to produce a condensate of at least a portion of said gas, and introducing said condensate into the polymerization solution whereby to evaporate at least one component in said condensate. Said vapor includes said at least one component.

    摘要翻译: 本发明提供一种制造在一个容器内的聚合溶液的乙烯 - 乙酸乙烯酯共聚物(EVA)的方法。 聚合溶液包括乙烯,乙酸乙烯酯,甲醇和聚合引发剂。 该方法包括:冷却气体包括从聚合溶液,从而得到以产生所述气体的至少一部分的冷凝物蒸发的蒸气,并且将所述凝结水进入聚合溶液,从而得到以蒸发在所述冷凝物的至少一种组分。 所述蒸汽包括所述至少一个部件。

    Method for producing ethylene-vinyl alcohol copolymer resin composition
    17.
    发明公开
    Method for producing ethylene-vinyl alcohol copolymer resin composition 有权
    生产乙烯 - 乙烯醇共聚物树脂组合物的方法

    公开(公告)号:EP2253448A1

    公开(公告)日:2010-11-24

    申请号:EP10007723.9

    申请日:2002-01-22

    申请人: Kuraray Co., Ltd.

    摘要: The present invention provides a method for producing an ethylene-vinyl alcohol copolymer resin composition, said method comprising: a) introducing into an extruder an ethylene-vinyl alcohol copolymer resin having a water content of at least 0.5 weight % and an additional component; b) kneading the resin and the additional component whereby to form an ethylene-vinyl alcohol copolymer resin composition; and c) discharging said resin composition from the extruder; wherein said additional component comprises a resin selected from resins which are compatible with the ethylene-vinyl alcohol copolymer, resins having functional groups capable of reacting with the ethylene-vinyl alcohol copolymer and resins capable of dispersing in the ethylene-vinyl alcohol copolymer, wherein the amount of said additional component ranges from 5 weight parts to 200 weight parts per 100 weight parts of the ethylene-vinyl alcohol copolymer resin, and wherein said method further comprises feeding water in a liquid state to the extruder and/or removing water in a liquid state from the extruder. Thereby, strand-breakage or cutting errors are suppressed and thus molded articles such as pellets can be provided with a stable shape.

    摘要翻译: 本发明提供一种生产乙烯 - 乙烯醇共聚物树脂组合物的方法,所述方法包括:a)将含水量至少为0.5重量%的乙烯 - 乙烯醇共聚物树脂和附加组分引入挤出机; b)捏合树脂和附加组分,由此形成乙烯 - 乙烯醇共聚物树脂组合物; 和c)从挤出机排出所述树脂组合物; 其中所述附加组分包括选自与所述乙烯 - 乙烯醇共聚物相容的树脂,具有能够与所述乙烯 - 乙烯醇共聚物反应的官能团的树脂和能够分散在所述乙烯 - 乙烯醇共聚物中的树脂中的树脂,其中所述 所述附加组分的量为每100重量份乙烯 - 乙烯醇共聚物树脂5重量份至200重量份,并且其中所述方法进一步包括将液态水供给至挤出机和/或除去液体中的水 来自挤出机的状态。 由此,能够抑制线断裂或切断误差,能够使粒料等成形品形成为稳定的形状。