Patent ID: 9359459
Filing Date: 2016-06-07
CPC Classification: C08F,C08G

Claim Text:
1. A process for the preparation of at least one hydrocarbon polymer comprising two end groups having 2-oxo-1,3-dioxolan-4-yl final parts, said process comprising at least one stage of ring opening metathesis polymerization in the presence: of at least one metathesis catalyst; of at least one chain transfer agent (CTA) compound of formula (15): the Z group being composed of at least one alkylene group optionally connected to a divalent carboxyl or oxy group, the Z group comprising from 1 to 19 carbon atoms and q being an integer equal to 0 or 1; and of at least one compound comprising at least one hydrocarbon ring, carbon atoms per ring, said ring comprising at least one carbon-carbon double bond, or substituted derivatives of this compound, said compound being of formula (7): in which: each carbon-carbon bond of the chain denoted the R the R m and p are integers each within a range extending from 0 to 5, the sum m+p being itself within a range from 0 to 6;