| abstract |
The invention relates to a copolymer of ethylene and / or an alpha-olefin, a cyclic olefin and an alkenylaromatic hydrocarbon, characterized in that its content of cyclic olefin is from 0.01 to 66 mol% , its content of alkenylaromatic hydrocarbon is from 3 to 99 mol% and is greater than half of the content of cyclic olefin, and its total content of ethylene and / or alpha-olefin, of cyclic olefin and of aromatic alkenyl hydrocarbon is equal at 100 mol%, a process for its production and a molded product constituted by this copolymer which has excellent properties of flexibility and elastic recovery, determined by means of a hysteresis curve (load / elongation) obtained in a tensile test . |