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:
Nov. 25, 2008
Filed:
Jan. 16, 2004
Patrick Brant, Seabrook, TX (US);
Burkhard Endeward, Frankfurt, DE;
Hans Thomann, Bedminster, NJ (US);
Yuan-ju Chen, Houston, TX (US);
Terry John Burkhardt, Huntley, IL (US);
Patrick Brant, Seabrook, TX (US);
Burkhard Endeward, Frankfurt, DE;
Hans Thomann, Bedminster, NJ (US);
Yuan-Ju Chen, Houston, TX (US);
Terry John Burkhardt, Huntley, IL (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
Disclosed herein is a method for determining the presence of an activated catalyst site in a catalyst system comprising a catalyst precursor and an activator, wherein the catalyst system is capable of providing a luminescence, the method comprising: performing a time resolved luminescence analysis on a reference analyte comprising the catalyst precursor that is not in combination with the activator, and performing a time resolved luminescence analysis on a sample analyte comprising the catalyst precursor in combination with the activator, determining a reference emission energy and a reference lifetime each associated with a maximum emission intensity in the reference output values; determining a sample emission energy and a sample lifetime each associated with a maximum emission intensity in the sample output values; and comparing the values to determine if the sample comprises an activated catalyst site. Use of the above method in relation to an activation index is also disclosed.