申请人:MONTELL NORTH AMERICA INC.
公开号:EP0439079A2
公开(公告)日:1991-07-31
Disclosed is a method of making graft copolymers of olefin polymers by contacting a particulate olefin polymer with a free radical polymerization initiator, e.g., a peroxide, and a vinyl monomer at about from 60° to 125° C, while controlling the monomer addition rate so that it does not exceed about 4.5 pph/min, and most preferably does not exceed about 3.0 pph/min, at any monomer feed level. To prevent polymer degradation, a non-oxidizing environment is maintained throughout the process, and residual free radicals are deactivated, and unreacted initiator is decomposed, before the graft copolymer is exposed to air.
本发明公开了一种制造烯烃聚合物接枝共聚物的方法,该方法是将颗粒状烯烃聚合物与自由基聚合引发剂(如过氧化物)和乙烯基单体在约60°至125°C的温度下接触,同时控制单体添加速率,使其在任何单体进料水平下不超过约4.5pph/min,最优选不超过约3.0pph/min。为防止聚合物降解,在整个过程中要保持非氧化环境,在接枝共聚物暴露于空气之前,要使残留的自由基失活,并分解未反应的引发剂。