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:
Sep. 27, 2011
Filed:
Apr. 19, 2007
Sudhin Datta, Houston, TX (US);
Bruce A. Harrington, Houston, TX (US);
Weiguo HU, Houston, TX (US);
Periagaram S. Ravishankar, Kingwood, TX (US);
George Rodriguez, Houston, TX (US);
Sudhin Datta, Houston, TX (US);
Bruce A. Harrington, Houston, TX (US);
Weiguo Hu, Houston, TX (US);
Periagaram S. Ravishankar, Kingwood, TX (US);
George Rodriguez, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
Ethylene propylene copolymers, substantially free of diene, are described. The copolymers will have a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the copolymers will exhibit a statistically insignificant intramolecular difference of tacticity. The copolymers are made in the presence of a metallocene catalyst.