Patent ID: 6939929
Filing Date: 2005-09-06
Classification: C08F,C08L,Y10S

Abstract:
1. A process for producing an atactic α-olefin-aromatic vinyl compound copolymer, the process comprising copolymerizing in a temperature range of 50-200° C. an α-olefin with an aromatic vinyl compound in the presence of a polymerization catalyst comprising a transition metal compound (A) and a promoter catalyst component (B), wherein the atactic α-olefin-aromatic vinyl compound copolymer comprises: (I) the α-olefin, and (II) 0.1 to 90 mole % of the aromatic vinyl compound, wherein the atactic α-olefin-aromatic vinyl compound copolymer has a molecular weight distribution measured by a GPC method of 3.0 or less, wherein in a wherein an index (θ) showing a blocking property of the aromatic vinyl compound component which is represented by the following relational equation is 10 to 80%: wherein I(Tββ+Tβδ) represents the sum of the intensities of the signals Tββ and Tβδ in the wherein the component (A) in the polymerization catalyst is a transition metal compound Formula (1): wherein A Y Y M X