公开(公告)号：US3835107A

公开(公告)日：1974-09-10

申请号：US29167172

申请日：1972-09-25

Applicant: BASF AG

Inventor： URBAN F ,  PFANNMUELLER H ,  STARK K ,  GROPPER H

IPC: C08F10/00 ,  C08F1/60 ,  C08F3/04

CPC classification number: C08F10/00 ,  Y10S585/942 ,  Y10S585/946 ,  C08F4/28

Abstract: A PROCESS FOR THE PRODUCTION OF WAXY, LOW MOLECULAR WEIGHT POLYETHYLENES IN WHICH ETHYLENE IS POLYMERIZED UNDER THE ACTION OF A POLYMERIZATION INITIATOR WHICH FORMS FREE RADICALS AND IN THE PRESENCE OF A POLYMERIZATION REGULATOR AT ELEVATED TEMPERATURE AND AT SUPERATMOSPHERIC PRESSURE. IT IS A CHARACTERISTIC OF THE PROCESS ACCORDING TO THE INVENTION THAT AS THE FREE RADICAL-FORMING POLYMERIZATION INITIATOR THERE ARE JOINTLY USED: (1) A SPECIFIC AMOUNT OF AN ORGANIC PEROXIDE HAVING A HALF-LIFE TEMPERATURE OF FROM 60* TO 112*C., AND (2) A SPECIFIC AMOUNT OF OXYGEN. HIGH YIELDS CAN BE OBTAINED BY THE PROCESS AND A PRODUCT CAN BE OBTAINED WHICH HAS PARTICULARLY GOOD OIL-BINDING PROPERTIES.