Ethylene and isoprene copolymer
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsJosé-Carlos ARAUJO DA SILVA, Vincent LAFAQUIERE, Emma MORESO, Julien THUILLIEZ, Aurélie TRIGUEL
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Abstract
A copolymer of ethylene and of isoprene, which comprises from 10 to 35 mol % of isoprene units, at least 70% of which are in the 3,4 configuration and a portion of which is in the 1,2 configuration is provided. A copolymer of this type with a reduced crystallinity is synthesized with a much higher productivity than its homologues of ethylene and of butadiene, and also confers improved curing properties on rubber compositions.
Claims20
A copolymer of ethylene and of isoprene, the copolymer comprising from 10 to 35 mol % of isoprene units, at least 70% of which are in the 3,4 configuration and a portion of which is in the 1,2 configuration.
Dependencies are inferred from the claim text.