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:
Aug. 16, 2016
Filed:
Jan. 12, 2011
Rainer Kolb, Kingwood, TX (US);
Liehpao Oscar Farng, Lawrenceville, NJ (US);
Sudhin Datta, Houston, TX (US);
Donna J. Crowther, Seabrook, TX (US);
Peijun Jiang, League City, TX (US);
Rainer Kolb, Kingwood, TX (US);
Liehpao Oscar Farng, Lawrenceville, NJ (US);
Sudhin Datta, Houston, TX (US);
Donna J. Crowther, Seabrook, TX (US);
Peijun Jiang, League City, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
Provided are ethylene propylene copolymers compositions thereof and methods for making the same. The composition may include an ethylene copolymer, comprising 40 wt % to 70 wt % of units derived from ethylene, and at least 30 wt % of units derived from at least one α-olefin having 3 to 20 carbon atoms. The composition can have a melting point (Tm) in ° C., as measured by DSC, that satisfies the relation: Tm>3.4×E−180, where E is the weight % of units derived from ethylene in the copolymer. The composition can also have a Mw/Mn ratio of about 1.5 to about 3.5. The composition can further have a content of Group 4 metals derived from a catalyst of 25 ppm or less.