07119153 is referenced by 70 patents and cites 75 patents.

This invention relates to catalyst compositions comprising a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. This invention also relates to methods to prepare and use the catalyst compositions and new polyolefins. The compositions and methods disclosed herein provide ethylene polymers and copolymers with lower MI, increased melt strength, and good MD tear properties.

Title
Dual metallocene catalyst for producing film resins with good machine direction (MD) elmendorf tear strength
Application Number
10/762056
Publication Number
7119153 (B2)
Application Date
January 21, 2004
Publication Date
October 10, 2006
Inventor
Mark E Kertok
Bartlesville, 74006
OK, US
Rajendra K Krishnaswamy
Bartlesville, 74006
OK, US
Ashish M Sukhadia
Bartlesville, 74003
OK, US
Ted H Cymbaluk
Kemah, 77565
TX, US
Elizabeth A Benham
Spring, 77379
TX, US
Matthew G Thorn
Bartlesville, 74006
OK, US
Qing Yang
Bartlesville, 74006
OK, US
Max P McDaniel
Bartlesville, 74006
OK, US
Joel L Martin
Bartlesville, 74006
OK, US
Michael D Jensen
Bartlesville, 74006
OK, US
Agent
Womble Carlyle Sandridge & Rice PLLC
IPC
B01J 31/38
C08F 4/76
C08F 4/44
C08F 4/06
View Original Source