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    • 5. 发明授权
    • Process for the preparation of ethylene/(meth)acrylic acid copolymers
    • 制备乙烯/(甲基)丙烯酸共聚物的方法
    • US5880233A
    • 1999-03-09
    • US957321
    • 1997-11-06
    • Andreas DeckersEckard SchaussRoger KlimeschWilhelm Weber
    • Andreas DeckersEckard SchaussRoger KlimeschWilhelm Weber
    • C08F2/00C08F4/38C08F210/02
    • C08F210/02
    • Copolymers of ethylene with .alpha.,.beta.-unsaturated carboxylic acids are prepared at from 50.degree. to 250.degree. C. and from 500 to 5000 bar in a stirred autoclave having a length/diameter ratio greater than 5:1 by a process in which the monomer mixtures are fed into the autoclave in at least two part-streams, the first part-stream being passed into the autoclave at the beginning of the autoclave pipe and the second part-stream being introduced at a position which is a distance away from the beginning which corresponds to 25-50% of the total length and the amount of the .alpha.,.beta.-unsaturated carboxylic acids in the first part-stream is from 20 to 90% less than the average amount in the further part-streams and a peroxide polymerization initiator having a lower decomposition temperature, or a mixture of peroxide polymerization initiators having a lower average decomposition temperature, than that of the initiators in the further part-streams is passed in with the first part-stream.
    • 乙烯与α,β-不饱和羧酸的共聚物在50至250℃和500至5000巴的条件下通过一种方法制备,所述搅拌高压釜的长度/直径比大于5:1,其中单体 将混合物以至少两部分流进料到高​​压釜中,第一部分物流在高压釜管道的开始处被送入高压釜中,并且将第二部分物流引入远离开始位置的位置 其对应于总长度的25-50%,并且第一部分流中的α,β-不饱和羧酸的量比另外的部分流中的平均量少20至90%,并且过氧化物聚合 具有较低分解温度的引发剂或具有较低平均分解温度的过氧化物聚合引发剂的混合物比其它部分流中的引发剂的引发剂与第一部分流一起进入。