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Process for the preparation of elastomeric copolymers of ethylene and products obtained therefrom
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Crystalline syndiotactic copolymers of propylene
No full textEssentially syndiotactic crystalline copolymers of propylene with minor proportions of 1-butene, endowed with good mechanical properties, lowered melting point and limited solubility in xylene at 25 DEG C and the process for their preparation by polymerizing mixtures of propylene with 1- utene, by using catalysts obtained from stereorigid and chiral
zirconium and hafnium compounds and from polymethylalumoxane compounds
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