Back to results
US 11,053,381 B2Granted
Elastomeric propylene-ethylene-diene terpolymer compositions
AssigneeExxonMobil Chemical Patents Inc.
InventorsNarayanaswami Dharmarajan, Ron Walker, Scott H. Loyd
Life of this patent
Estimating the term…
Abstract
In some embodiments, the present disclosure provides a composition comprising from 5 phr to 30 phr of a PEDM terpolymer having 1 to 10 wt % diene, 13 to 40 wt % ethylene, and 15 to 85 wt % propylene, based on the weight of the PEDM terpolymer. The composition further comprises from 70 phr to 95 phr of an ethylene-based copolymer comprising an ethylene content different than the first polymer, a C3 to C12 α-olefin, and, optionally, one or more dienes.
Claims24
A composition comprising:
- from 5 to 30 parts by weight per hundred parts by weight rubber (phr) of a propylene-α-olefin-diene (PEDM) terpolymer comprising 1 to 10 wt % diene, 13 to 40 wt % α-olefin, and 15 to 85 wt % propylene, said wt % based on the weight of the PEDM terpolymer;
- and
- from 70 to 95 phr of an ethylene-based copolymer comprising ethylene, one or more C3 to C12 α-olefins, and, optionally, one or more dienes;
- wherein the amount of ethylene content of the ethylene-based copolymer (in wt % on the basis of total weight of the ethylene-based copolymer) is different from the amount of α-olefin content of the PEDM terpolymer (in wt % on the basis of total weight of the PEDM terpolymer).
1 more element
Dependencies are inferred from the claim text.