Disclosed are a propylene polymer having a high crystallinity of a boiled heptane-insoluble component contained therein, a high stereoregularity and an extremely long mesochain (continuous propylene units wherein directions of {acute over ()}-methyl carbons are the same as each other), and a process...http://www.google.fr/patents/US6630559?utm_source=gb-gplus-shareBrevet US6630559 - Propylene polymer, propylene block copolymer, process for preparing said polymer and said block copolymer, and propylene polymer composition
Propylene polymer, propylene block copolymer, process for preparing said ...