OLEFIN BLOCK COPOLYMER AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a block copolymer having a variety of useful physical properties in which different segments are combined and its efficient manufacturing method. SOLUTION: This olefin block copolymer comprises (i) a polymer block obtained from at least one olefin selected from 2-20C olefins and (ii) a polymer block obtained from at least one olefin selected from 2-20C olefins but different from the above polymer block (i), wherein the olefin block copolymer has optional adjacent polymer blocks different from each other, and has Mn (number average molecular weight) of≥500 and Mw/Mn(molecular weight distribution) of≤1.5. COPYRIGHT: (C)2005,JPO&NCIPI