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Montedison SpA
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Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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Publication of ES283397A2publicationCriticalpatent/ES283397A2/en
Transition And Organic Metals Composition Catalysts For Addition Polymerization
(AREA)
Abstract
Improvements in the object of the main patent no. 271,969, by "a process for preparing amorphous linear elastomeric coplolymers of high molecular weight, which for the preparation of vulcanizable, amorphous copolymers, of conjugated diolefins, provided with a terminal unsaturation at least, with ethylene and/or alpha-olefins having 3 to 8 carbon atoms, are characterized in that the mixture of the monomers is polymerized in the presence of a catalyst constituted by the product of the reaction between aluminum alkyl halides or beryllium, or mixtures thereof and vanadium compounds soluble in hydrocarbons in which at least one of the valences of the metal is saturated by a nitrogen atom, bound to an organic group, the preparation of the catalyst and the polymerization occurring at temperatures comprised between 0º and -80ºc. (Machine-translation by Google Translate, not legally binding)
ES283397A1961-12-151962-12-14
A PROCEDURE FOR PREPARING HIGH MOLECULAR WEIGHT AND AMORPHOUS LINEAR ELASTOMERIC COPOLYMERS
ExpiredES283397A2
(en)
A procedure for preparing amplifier linear elastomeric copolymers and high molecular weight (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of polymers of high molecular weight of acetylene hydrocarbons (Machine-translation by Google Translate, not legally binding)