PROCESS FOR THE PREPARATION OF CYCLIZED POLYDIENES

Cyclized polydienes devoid of crosslinked fractions are prepared by polymerizing conjugated diolefins in solution in n solvent consisting of a mixture of saturated hydrocarbons with 20-95% by weight, with respect to the mixture, of chlorinated saturated hydrocarbons, in the presence of from 0.1 to 1...

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Bibliographische Detailangaben
Hauptverfasser:	GIUDICI, ALESSANDRO, FERRE', FRANCO, STIGLIANI, GIUSEPPE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS 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 CHEMISTRY 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:	Cyclized polydienes devoid of crosslinked fractions are prepared by polymerizing conjugated diolefins in solution in n solvent consisting of a mixture of saturated hydrocarbons with 20-95% by weight, with respect to the mixture, of chlorinated saturated hydrocarbons, in the presence of from 0.1 to 10 moles for each 100 moles of diolefins, of a catalyst of the formula RnA1 C13-n' where R is an alkyl radical with 1-6 carbon atoms and n is from 1 to 1.5. These cyclized polydienes can be used in coating formulations.