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:
Feb. 19, 2013
Filed:
Jan. 11, 2011
Rainer Kolb, Kingwood, TX (US);
JO Ann Marie Canich, Houston, TX (US);
Liehpao Oscar Farng, Lawrenceville, NJ (US);
Sudhin Datta, Houston, TX (US);
Rainer Kolb, Kingwood, TX (US);
Jo Ann Marie Canich, Houston, TX (US);
Liehpao Oscar Farng, Lawrenceville, NJ (US);
Sudhin Datta, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
Provided are amorphous ethylene propylene copolymer, compositions thereof, and methods for making same, whereby the copolymer can include of from about 40 wt. % to about 60 wt. % ethylene derived units; and of from about 60 wt. % to about 40 wt. % propylene derived units. The copolymer can be characterized by having no discernable melting point as measured by DSC, an MFRR (MI (21.6 kg; 230° C.)/MI (2.16 kg; 230° C.)) (MI (2.16 kg; 230° C.)) of about 38 or more, a molecular weight distribution (MWD) of from about 1.5 to about 2.5, and a shear viscosity η* at 0.01 rad/sec measured at 70° C. that satisfies the relation |η*|>1.2*10*|MFR|, wherein MFR is the melt flow rate.