公开(公告)号：US3715321A

公开(公告)日：1973-02-06

申请号：US3715321D

申请日：1969-04-23

Applicant: PHILLIPS PETROLEUM CO

Inventor： HORVATH B

IPC: C03C3/00 ,  C08F4/24 ,  C08F10/00 ,  B01J11/78

CPC classification number: C03C3/00 ,  C08F10/00 ,  C08F4/22

Abstract: ADDITIVES ARE PROVIDED TO A CHROMIC OXIDE CATALYST SYSTEM USED FOR OLEFIN POLYMERIZATION WHICH AFFECT THE COURSE OF REACTION AND/OR THE NATURE OF THE POLYMER PRODUCED, THE ADDITIVES BEING COMPOUNDS OF THE METALS OF GROUP II-A AND GROUP III-B OF THE PERIODIC TABLE.