FIELD: chemistry of polymers. SUBSTANCE: described are new elastomeric polypropylenes modified with ethylenically unsaturated grafted monomers with stereoregular disposition of units in chain structure and mixtures thereof with isotactic polypropylenes (IPP) modified with ethylenically unsaturated grafted monomers. Also described is method of preparing thereof, and composition based thereon. EFFECT: desired products having improved mechanical properties, higher viscosity and lower fragility. 11 cl, 10 ex, 1 tbl
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Authors
Dates
1999-11-10—Published
1994-07-25—Filed