Propylene polymers and their preparation.

摘要

A substantially amorphous random interpolymer comprising from l0 wt % to 30 wt % of units derived from ethylene, from 65 to 90 wt % of units derived from propylene and, optionally up to l5 wt % of units derived from a C4 - C8 alpha-olefin, the interpolymer having a tacticity index m/r of from 3 to 5 as determined by <1><3>C NMR spectra.