SYNDIOTACTIC CRYSTALLINE COPOLYMERS OF PROPYLENE

SYNDIOTACTIC CRYSTALLINE COPOLYMERS OF PROPYLENE

Essentially 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-butene, by u...

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Hauptverfasser: MAZZOCCHI, ROMANO, GALIMBERTI, MAURIZIO, ALBIZZATI, ENRICO
Format: Patent
Sprache:eng
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CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator MAZZOCCHI, ROMANO
GALIMBERTI, MAURIZIO
ALBIZZATI, ENRICO
description Essentially 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-butene, by using catalysts obtained from stereorigid and chiral zirconium and hafnium compounds and from polymethylalumoxane compounds.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title SYNDIOTACTIC CRYSTALLINE COPOLYMERS OF PROPYLENE
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