| 摘要 |
The invention relates to an oil extended ethylene-±-olefin-non-conjugated-diene copolymer composition consisting of
i) 100 parts of at least one ethylene-±-olefin-non-conjugated-diene copolymer having
- a weight average molecular weight (Mw) of at least 300,000 g/mol.
- an intrinsic viscosity higher than 4, preferably higher than 4.2 measured in Xylene at 70 °C and
- a polydispersity (Mw/Mn) smaller than 3, preferably smaller than 2.8, in particular smaller than 2.6;
ii) 30 to 70 parts by weight per 100 parts by weight of the ethylene-±-olefin-nonconjugated-diene copolymer (i) of an extender oil and
iii) up to 5 parts by weight per 100 parts by weight of the ethylene-±-olefin-nonconjugated-diene copolymer (i) of auxiliary agents,
whereby the oil extended copolymer composition has a phase angle ´ min of lower than 2.5. |
