POLY-1-BUTEN (CO)POLYMERS AND A METHOD FOR PRODUCTION THEREOF

POLY-1-BUTEN (CO)POLYMERS AND A METHOD FOR PRODUCTION THEREOF

FIELD: polymer production. SUBSTANCE: invention provides homopolymers or copolymers of 1-buten containing up to 20 wt % of alpha-olefins having 1 to 10 carbon atoms and other than 1-buten, which are characterized by the following: (i) isotacticity index above 93 provided by nuclear magnetic resonanc...

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Hauptverfasser: CHEKKIN DZHULIANO, KOLLINA DZHANNI, KOVETSTSI MASSIMO
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 CHEKKIN DZHULIANO
KOLLINA DZHANNI
KOVETSTSI MASSIMO
description FIELD: polymer production. SUBSTANCE: invention provides homopolymers or copolymers of 1-buten containing up to 20 wt % of alpha-olefins having 1 to 10 carbon atoms and other than 1-buten, which are characterized by the following: (i) isotacticity index above 93 provided by nuclear magnetic resonance measurements according to lower presented approach; (ii) molecular weight distribution, expressed as Mw/Mn, exceeding 6 provided by gel- permeation chromatography according to lower presented approach; and (iii) residual catalyst level below 50 expressed as ppm Ti. Polymers are very well suitable for manufacturing products, in particular tubes. Process for production of homopolymers or copolymers of 1-buten is also provided, which is accomplished in presence of catalyst comprising solid component containing titanium compound and internal electronodonor compound supported by magnesium chloride; alkykaluminum compound ; and external electronodonor compound. Process is carried out in at least two polymerization reactors operated under different working conditions. EFFECT: enabled controlling polymer properties. 26 cl, 1 tbl, 2 ex
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SUBSTANCE: invention provides homopolymers or copolymers of 1-buten containing up to 20 wt % of alpha-olefins having 1 to 10 carbon atoms and other than 1-buten, which are characterized by the following: (i) isotacticity index above 93 provided by nuclear magnetic resonance measurements according to lower presented approach; (ii) molecular weight distribution, expressed as Mw/Mn, exceeding 6 provided by gel- permeation chromatography according to lower presented approach; and (iii) residual catalyst level below 50 expressed as ppm Ti. Polymers are very well suitable for manufacturing products, in particular tubes. Process for production of homopolymers or copolymers of 1-buten is also provided, which is accomplished in presence of catalyst comprising solid component containing titanium compound and internal electronodonor compound supported by magnesium chloride; alkykaluminum compound ; and external electronodonor compound. Process is carried out in at least two polymerization reactors operated under different working conditions. 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SUBSTANCE: invention provides homopolymers or copolymers of 1-buten containing up to 20 wt % of alpha-olefins having 1 to 10 carbon atoms and other than 1-buten, which are characterized by the following: (i) isotacticity index above 93 provided by nuclear magnetic resonance measurements according to lower presented approach; (ii) molecular weight distribution, expressed as Mw/Mn, exceeding 6 provided by gel- permeation chromatography according to lower presented approach; and (iii) residual catalyst level below 50 expressed as ppm Ti. Polymers are very well suitable for manufacturing products, in particular tubes. Process for production of homopolymers or copolymers of 1-buten is also provided, which is accomplished in presence of catalyst comprising solid component containing titanium compound and internal electronodonor compound supported by magnesium chloride; alkykaluminum compound ; and external electronodonor compound. 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SUBSTANCE: invention provides homopolymers or copolymers of 1-buten containing up to 20 wt % of alpha-olefins having 1 to 10 carbon atoms and other than 1-buten, which are characterized by the following: (i) isotacticity index above 93 provided by nuclear magnetic resonance measurements according to lower presented approach; (ii) molecular weight distribution, expressed as Mw/Mn, exceeding 6 provided by gel- permeation chromatography according to lower presented approach; and (iii) residual catalyst level below 50 expressed as ppm Ti. Polymers are very well suitable for manufacturing products, in particular tubes. Process for production of homopolymers or copolymers of 1-buten is also provided, which is accomplished in presence of catalyst comprising solid component containing titanium compound and internal electronodonor compound supported by magnesium chloride; alkykaluminum compound ; and external electronodonor compound. Process is carried out in at least two polymerization reactors operated under different working conditions. EFFECT: enabled controlling polymer properties. 26 cl, 1 tbl, 2 ex</abstract><edition>7</edition><oa>free_for_read</oa></addata></record>
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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 POLY-1-BUTEN (CO)POLYMERS AND A METHOD FOR PRODUCTION THEREOF
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