POLYPROPYLENE HAVING IMPROVED PROPERTIES AND METHOD PREPARING THEREOF Russian patent published in 1999 - IPC

FIELD: chemistry of polymers. SUBSTANCE: described is polypropylene with improved properties prepared by chemical destruction of elastic polypropylene having stereoregular distribution of units in polymer chain or mixture of polypropylene and elastic polypropylene having stereoregular distribution of units using organic peroxides and, if desired, adding standard additives and/or fillers. Elastic polypropylene comprises 10-80 wt % of ether-soluble fraction. Also described is method of preparing thereof. EFFECT: polypropylene has optimum properties, such as soft and elastic properties, and is readily volatile. 9 cl, 11 ex, 2 tbl