Description  Claims  Cited references 

US4022728A   [0011]  [0016] 
US4120916A   [0012]  [0016] 
US4761450A   [0013]  [0016] 
US5747573A   [0014] 
US20140358100A1   [0015] 
US5723546A   [0016] 
US6329468B   [0017] 
US7262251B   [0017] 
US20030096896A1   [0017] 
US8383731B   [0017] 
US9109143B   [0018] 
US20160121014A   [0019] 
US5190606A   [0073] 

Stereoselective Polymerization with Single-Site Catalysts   [0054] 
Polyolefins: 50 Years after Ziegler and Natta II: Polyolefins by Metallocenes and Other Single-Site Catalysts   [0054]