ETHYLENE COPOLYMERS AND METHOD OF PREPARING ETHYLENE- BASED POLYMERS

chemistry of polymers. SUBSTANCE: described is new copolymer, namely copolymer of ethylene with comonomer selected from alpha-olefins of formula: CH2=CH-CH2R wherein R is hydrogen or linear alkyl having from 1 to 20 carbon atoms and containing from 80 to 99 mole % of ethylene units and from 1 to 20...

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Bibliographische Detailangaben
Hauptverfasser:	RESKONI LUIDZHI, BALBONTIN DZHULIO, FLBITSTSATI EHNRIKO, DALL' OTSTSO TITSIANO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	chemistry of polymers. SUBSTANCE: described is new copolymer, namely copolymer of ethylene with comonomer selected from alpha-olefins of formula: CH2=CH-CH2R wherein R is hydrogen or linear alkyl having from 1 to 20 carbon atoms and containing from 80 to 99 mole % of ethylene units and from 1 to 20 mole % of units of said comonomer. During fractionation accomplished by temperature-raising elution, at least 90 wt % of copolymer elute within temperature range up to 50 C, and ratio of average molecular weight (Mw) to average numerical molecular weight (Mn) determined by gel penetrating chromatography method (Mw/Mn) is more than 3. Also described is method of preparing ethylene-based polymers. EFFECT: optimal mechanical properties for producing films. 15 cl, 4 ex, 2 tbl