CHLORINATED LINEAR ULTRA LOW DENSITY POLYETHYLENE

摘要

Chlorinated linear ultra low density polyethylene containing 3-40% by weight of chlorine produced by chlorinating a linear ultra low density polyethylene having the properties (i)-(iv) cited below, said polyethylene being produced by copolymerizing ethylene and an .alpha.-olefin having 3-12 carbon atoms in the presence of a catalyst comprising a solid catalyst component containing at least magnesium and titanium and an organic aluminum compound. (i) Melt index 0.01-100 g/10 min (ii) Density 0.860-0.910 g/cm3 (iii) Maximum peak temperature not lower than 100.degree.C (Tm) by the differential scanning calorimetry (iv) Boiling n-hexane not less than 10% by insolubles weight.