Improvement of polypropylene@ impact strength at low temps. - by shaping mixt. of polypropylene@ and barium sulphate, useful for mfr. of films, coating paper, etc.

摘要

Impact strength of polypropylene at low temps is improved by shaping a mixt. of 70-90 wt.% polypropylene and 10-30 wt.% BaSO4 of particle size 2-5 microns. USE/ADVANTAGE - No need for heat treatment of the final prod.. Useful for making household articles, films, coating paper, etc..