Arlanxeo Netherlands B.v.

Henri Jacob Hubert Beelen

Martin Van Duin

Claus Wrana

Ulrich Frenzel

Christoph Goegelein

Christoph GÖGELEIN

The invention relates to an oil extended ethylene-a-olefin-non-conjugated-diene copolymer composition consisting of i) 100 parts of at least one ethylene-a-olefin-non-conjugated-diene copolymer having &#x2014;a weight average molecular weight (Mw) of at least 300,000 g/mol. &#x2014;an intrinsic viscosity higher than 4, preferably higher than 4.2 measured in Xylene at 70&#xb0; C. and &#x2014;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-a-olefin-non-conjugated-diene copolymer (i) of an extender oil and iii) up to 5 parts by weight per 100 by weight of the ethylene-a-olefin-non-conjugated-diene copolymer (i) of auxiliary agents, whereby the oil extended copolymer composition has a phase angle &#x14c;of lower than 2.5.

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Heerlen, Netherlands

Henri Jacob Hubert Beelen