Rubber composition
AssigneeArlanxeo Netherlands B.V.
InventorsMartin VAN DUIN, Victor Fidel QUIROGA NORAMBUENA, Maria ALVAREZ-GRIMA
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Abstract
A rubber composition, comprising i) an ethylene-α-olefin-non-conjugated-diene copolymer having—a Mooney viscosity ML (1+8) at 150 ° C. ≥85 MU and—an ethylene content≤63 wt. %—the diene content is 4 to 8% by weight of the ethylene-a-olefin-non-conjugated-diene copolymer i), —the non-conjugated diene is a combination of 5-ethylidene-2-norbornene (ENB) and 5-vinylnorbornene (VNB), —the ethylene-α-olefin-non-conjugated-diene copolymer i) has an amount of VNB between 0.05 and 1 wt. %, and has a Mw of at least 400,000 g/mol and, ii) an extender oil of 10 to 40 phr based on the copolymer i) with the sum of the EPDM copolymer i) and the oil ii) amounting to at least 95 wt. % of the composition.
Claims15
A rubber composition comprising:
- i) an ethylene-α-olefin-non-conjugated-diene copolymer having:
- a Mooney viscosity ML (1+8) at 150 °C.≥85 MU;
- an ethylene content≤63 wt. %;
- a diene content of 4 to 8 % by weight wherein the non-conjugated diene is a combination of 5-ethylidene-2-norbornene (ENB) and 5-vinylnorbornene (VNB);
- an amount of VNB of 0.05 to 1 wt. %;
- and
- a Mw of at least 400,000 g/mol;
- and
- ii) 10 to 40 phr of an extender oil, based on the copolymer i);
- wherein a sum of the copolymer i) and the oil ii) is at least 95 wt. % of the composition.
Dependencies are inferred from the claim text.