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:
May. 25, 2021
Filed:
Mar. 18, 2019
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Sudhin Datta, Houston, TX (US);
Andy H. Tsou, Houston, TX (US);
Ron Walker, Pearland, TX (US);
Krishnan Anantha Narayana Iyer, Pearland, TX (US);
Rhutesh K. Shah, Katy, TX (US);
Hamidreza Khakdaman, Houston, TX (US);
Sebastian Vasquez, Houston, TX (US);
Feng Li, Katy, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
Disclosed is the preparation of thermoplastic vulcanizates with reduced crosslinked rubber dispersion sizes and dispersity. The thermoplastic vulcanizates include a polypropylene matrix phase in which cross-linked rubber particles are dispersed. The thermoplastic vulcanizates include the reaction product of a mixture that includes at least 10 wt % of isotactic polypropylene at least 30 wt % of an amorphous propylene-ethylene-diene terpolymer containing at least 60 wt % propylene-derived units and less than or equal to 25 wt % of ethylene-derived units; at least 10 wt % of a diluent and at least 0.015 wt % of at least one curative. The mixture is preferably formed without adding an ethylene-propylene-diene terpolymer.