专利检索 ap:("AKZO NOBEL CHEMICALS INTERNATIONAL B.V.") AND inv:"Hendrikus Johannes Maria Kamp" 第 1 页

1.

发明授权
Process for producing high melt strength polypropylene 有权

公开(公告)号：US11236180B2

公开(公告)日：2022-02-01

申请号：US16640784

申请日：2018-08-21

申请人： AKZO NOBEL CHEMICALS INTERNATIONAL B.V.

发明人： Wilhelm Klaas Frijlink , Jan Martijn Van Der Schuur , Auke Gerardus Talma , Waldo Joseph Elisabeth Beek , Hendrikus Johannes Maria Kamp

IPC分类号： C08F8/48 , C08K5/134

摘要： A process for enhancing the melt strength of polypropylene by extruding said polypropylene in a twin-screw extruder, under inert atmosphere, at a temperature between about 150° C. and about 300° C., and in the presence of about 0.1 to about 3.0 wt %, based on the weight of the polypropylene, of a para-substituted dibenzoyl peroxide.