4Ludwig L Bohrn. The ethylene polymerization with ziegler catalysts: Fifty years after the discovery [J]. Angew Chem Int Ed,2003, 42:5 010-5 030
5Barry C, Trudell. Market and apphcafions for metallocene LLDPE(mLLDPE) resins that process like HP-LDPE/LLDPE blends[OL]. [2005-06-25]. http://www.univation.com/main. asp