0374695-A2 is referenced by 78 patents and cites 3 patents.

The present invention relates to new ethylene-propylene copolymers and to a process for preparing the same. The present copolymers are characterized by having both of a reactivity ratio product r1r2 between 0.5 and 1.5 and an isotactic index greater than 0. The present copolymers may be obtained by copolymerizing ethylene and propylene in the presence of a metallocene catalyst catalyst containing a group IVb metal and an alumoxane co-catalyst.

Title
Ethylene-propylene copolymer.
Application Number
EP19890122919 19891212
Publication Number
0374695 (A2)
Application Date
December 12, 1989
Publication Date
June 27, 1990
Inventor
Davis Stephen Custer
Assignee
Polysar
CA
IPC
C08F 210/06
C08F 04/642
C08F 210/00
C08F 10/00
C08F 04/00
C08L 23/00
C08F 210/16
C08F 210/04
C08F 10/00
C08F 04/6592
C08F 04/642
C08F 04/60
C08L 23/00
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