The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2025
Filed:
Mar. 29, 2019
Dow Global Technologies Llc, Midland, MI (US);
Xiaosong Wu, Lake Jackson, TX (US);
Colin Li Pi Shan, Lake Jackson, TX (US);
Tao Han, Shanghai, CN;
Libo Du, Shanghai, CN;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
Polymer compositions include an interpolymer of ethylene, an α-olefin, and a nonconjugated polyene; and from 10% to 40% by weight oil. The polymer composition has a Mooney viscosity from 20 to 70. The interpolymer may include from 66% to 75% by weight monomer units derived from ethylene; and from 0.5% to 10% by weight monomer units derived from the nonconjugated polyene. The neat interpolymer may have: a weight-average molecular weight Mw from 250 kDa to 300 kDa; a Mooney viscosity from 50 to 200; a rheology ratio V/Vless than 30; a ratio of molecular weight to low-shear viscosity Mw/Vgreater than 4.0; a polydispersity index from 2.0 to 3.5; and a tan δ at 0.1 rad/sand 190° C. greater than 2.0. The polymer compositions may be in the form of pellets having desirable flow characteristics. Thermoplastic vulcanizates may include the polymer compositions. Articles may include the thermoplastic vulcanizates.