Patent ID: 6417301
Filing Date: 2002-07-09
Classification: C08F

Abstract:
A process for reducing the melting peak temperature (Tm) of an ethylene/olefin interpolymer having a given density and melt index (MI), the process comprising introducing at least one modifier comprising at least one atom selected from Group 15 and Group 16 of the Periodic Table of Elements, into a polymerization process comprising ethylene and at least one or more other olefin(s) and at least one Ziegler-Natta catalyst comprised of a component comprising at least one transition metal and a co-catalyst comprising at least one organometallic compound, in an amount sufficient to reduce the melting peak temperature (Tm) of the ethylene/olefin interpolymer to a level lower than would result in the same polymerization process in the absence of the modifier.