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. 27, 2012
Filed:
Dec. 21, 2009
William L. Winniford, Lake Jackson, TX (US);
Rongjuan Cong, Lake Jackson, TX (US);
Theodore M. Stokich, Jr., Midland, MI (US);
Randy J. Pell, Midland, MI (US);
Matthew D. Miller, Lake Jackson, TX (US);
Abhishek Roy, Edina, MN (US);
Freddy Van Damme, Brugge, BE;
Alexander W. Degroot, Sugar Land, TX (US);
John W. Lyons, Midland, MI (US);
David M. Meunier, Midland, MI (US);
William L. Winniford, Lake Jackson, TX (US);
Rongjuan Cong, Lake Jackson, TX (US);
Theodore M. Stokich, Jr., Midland, MI (US);
Randy J. Pell, Midland, MI (US);
Matthew D. Miller, Lake Jackson, TX (US);
Abhishek Roy, Edina, MN (US);
Freddy Van Damme, Brugge, BE;
Alexander W. Degroot, Sugar Land, TX (US);
John W. Lyons, Midland, MI (US);
David M. Meunier, Midland, MI (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A method for multi-dimensional chromatography of a polyolefin polymer, comprising introducing a solution of the polyolefin polymer into a liquid flowing through a first liquid chromatography stationary phase or a field flow fractionation device and subsequently flowing the solution through a second liquid chromatography stationary phase, the second liquid chromatography stationary phase comprising graphitic carbon, the polyolefin polymer emerging from the liquid chromatography stationary phase with a retention factor greater than zero.