Patent ID: 7968665
Filing Date: 2011-06-28
Classification: C08F,C09J,Y10S,Y10T

Abstract:
1. A 1-butene-based resin modifier comprising a high-fluidity 1-butene-based polymer satisfying the following requirements (1), (2), and (3): (1) has an intrinsic viscosity [η] of 0.01 to 0.5 dL/g as measured in a tetralin solvent at 135° C.; (2) is a crystalline resin having a melting point (Tm-D) of 0 to 100° C., the melting point being defined as a top of a peak observed on a highest-temperature side in a melting endothermic curve obtained by a differential scanning calorimeter (DSC) when a sample is held in a nitrogen atmosphere at −10° C. for 5 min. and then heated at a temperature rise rate of 10° C/min.; and (3) has a stereoregularity index {(mmmm)/(mmrr+rmmr)} of 30 or lower, produced by a process comprising: homopolymerizing 1-butene, or copolymerizing 1-butene with ethylene and/or a C (A) a transition metal compound having as a ligand, a double crosslinking type biscyclopentadienyl derivative represented by the following general formula (II): wherein M is a metal element belonging to Groups 3 to 10 or lanthanoid of the Periodic Table; X Y R A q is an integer of 1 to 5 given by the formula: [(valence of M)−2]; and r is an integer of 0 to 3; and (B) at least one component selected from the group consisting of (B-1) a compound capable of forming an ionic complex by reacting with said transition metal compound (A), and (B-2) aluminoxane.