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:
Feb. 23, 2021
Filed:
Mar. 18, 2019
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Ron Walker, Pearland, TX (US);
Sudhin Datta, Houston, TX (US);
Andy H. Tsou, Houston, TX (US);
Brian J. Rohde, Houston, TX (US);
Tamara L. Blanton, Nassau Bay, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
A thermoplastic vulcanizate comprises an isotactic polypropylene matrix phase in which cross-linked rubber particles are dispersed, the rubber particles comprising an ethylene-propylene-diene terpolymer (EPDM) containing at least 40 wt % of ethylene-derived units. A propylene-ethylene-diene terpolymer (PEDM) containing at least 60 wt % propylene-derived units and less than or equal to 25 wt % of ethylene-derived units and having a heat of fusion (H) of 2 to 10 J/g is added to compatibilize the propylene/EPDM blend.