作者: Nobuaki Goko , Yumito Uehara , Hideshige Kato , Yukimasa Matsuda
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摘要: A method for producing a propylene-α-olefin block copolymer, which comprises polymerizing propylene in the presence of catalyst and then gas phase an α-olefin other than propylene, or without deactivating catalyst, wherein at least one compound selected from group consisting aromatic carboxylic acid ester, phosphorous unsaturated dicarboxylic diester, amine amide compound, is supplied to latter polymerization system.