METHOD OF PREPARING GEL-FREE 1,4-CIS-POLYBUTADIENE

chemical industry. SUBSTANCE: described is method of preparing gel-free 1,4-cis-polybutadiene by polymerization of butadiene-1,3 in aliphatic solvent acted upon by catalyst comprising cobalt compound, alkylaluminium chloride and water. Catalyst is formed in toluene solution containing up to 0.033 %...

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Bibliographische Detailangaben
Hauptverfasser:	MUSTAFIN KH.V, ZOLOTAREV V.L, AKSENOV V.I, SMIRNOV N.D, UKHOV N.I, SMIRNOVA L.V, GIL'MUTDINOV N.R, ZIJATDINOV A.SH, KUROCHKIN L.M, KROPACHEVA E.N, RJAZANOV JU.I, BOREJKO N.P, SAKHABUTDINOV A.G
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	chemical industry. SUBSTANCE: described is method of preparing gel-free 1,4-cis-polybutadiene by polymerization of butadiene-1,3 in aliphatic solvent acted upon by catalyst comprising cobalt compound, alkylaluminium chloride and water. Catalyst is formed in toluene solution containing up to 0.033 % of H2O and 0.3- 0.5% of butadiene-1,3 by addition thereto of toluene solutions of cobalt compound and alkylaluminium chloride at 8-30 C and followed by further reaction at 3.0-25 C and addition of catalyst to monomer solution cooled to - 8-30 C in aliphatic hydrocarbon at water concentration (up to 0.006 wt %) lower than in saturated solution of aliphatic hydrocarbon. EFFECT: method uses diluted, unsaturated solutions of water in hydrocarbon solvents. 1 tbl