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:
Mar. 29, 2011
Filed:
Jul. 10, 2007
Guy Joseph Wouters, Brussels, BE;
Periagaram Srinivasan Ravishankar, Kingwood, TX (US);
Giandomenico Stella, Brussels, BE;
Maria Dolores Ellul, Silver Lake Village, OH (US);
Guy Joseph Wouters, Brussels, BE;
Periagaram Srinivasan Ravishankar, Kingwood, TX (US);
Giandomenico Stella, Brussels, BE;
Maria Dolores Ellul, Silver Lake Village, OH (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
Disclosed herein is a multimodal polymer composition comprising 45 to 75 wt % of a first polymer fraction, 25 to 55 wt % of a second polymer fraction, and from 10-50 phr of an extender oil. The multimodal polymer composition has an overall Mooney viscosity of less than 90 ML(1+4@125° C.), and each polymer fraction comprises an ethylene, C-Calpha-olefin, non-conjugated diene polymer, wherein the first polymer fraction has a Mooney viscosity of greater than or equal to about 150 ML(1+4@125° C.), the second polymer fraction has a Mooney viscosity from about 20 to about 120 ML(1+4@125° C.). A process for making the multimodal polymer composition comprising a process utilizing two or more reactors in series is also disclosed.