US 11,866,530 B2
Ethylene/propylene/nonconjugated diene interpolymer composition
Xiaosong Wu, Lake Jackson, TX (US); Colin Li Pi Shan, Lake Jackson, TX (US); Juan C. Tuberquia, Lake Jackson, TX (US); Tao Han, Shanghai (CN); and Guangming Li, Lake Jackson, TX (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 17/607,551
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Apr. 30, 2019, PCT No. PCT/CN2019/085137
§ 371(c)(1), (2) Date Oct. 29, 2021,
PCT Pub. No. WO2020/220245, PCT Pub. Date Nov. 5, 2020.
Prior Publication US 2022/0220237 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 210/18 (2006.01); C08F 2/06 (2006.01)
CPC C08F 210/18 (2013.01) [C08F 2/06 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A composition comprising:
a neat ethylene/propylene/nonconjugated polyene interpolymer comprising from greater than 6.0 wt % to 15 wt % nonconjugated polyene, the interpolymer having the following properties
(i) a molecular weight (Mw) from 240,000 to 270,000;
(ii) a Mooney viscosity (ML (1+4), 125° C.) from 85 to 95;
(iii) a rheology ratio from 35 to 65;
(iv) a Mw/Mn from 2.2 to 3.5; and
(v) a Mw<1389.6 [g/mol] MV+140,000 g/mol wherein Mw is the weight average molecular weight and MV is the Mooney Viscosity (ML 1+4, 125° C.).