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:
Oct. 23, 2012
Filed:
Dec. 10, 2009
Vetkav R. Eswaran, Houston, TX (US);
Bruce A. Harrington, Houston, TX (US);
Robert F. Bahm, Pass Christian, MS (US);
Smita Kacker, Annandale, NJ (US);
Vetkav R. Eswaran, Houston, TX (US);
Bruce A. Harrington, Houston, TX (US);
Robert F. Bahm, Pass Christian, MS (US);
Smita Kacker, Annandale, NJ (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
A method for forming a polymer blend, the method comprising charging to a reactive extruder a first polymer and a second polymer to form an initial blend, where the first polymer is a propylene-based elastomer including up to 35% by weight ethylene-derived units and a heat of fusion, as determined according to DSC procedures according to ASTM E-793, of less than 80 J/g and a melt temperature of less than 110° C., where the second polymer is a propylene-based polymer having a melt temperature in excess of 110° C. and a heat of fusion in excess of 80 J/g.