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:
Apr. 30, 2019
Filed:
Jun. 01, 2012
Rongjuan Cong, Lake Jackson, TX (US);
Charles M. Cheatham, Lake Jackson, TX (US);
AL Parrott, Lake Jackson, TX (US);
Wallace W. Yau, Las Vegas, NV (US);
Lonnie G. Hazlitt, Lake Jackson, TX (US);
Zhe Zhou, Lake Jackson, TX (US);
Alexander W. Degroot, Sugar Land, TX (US);
Matthew D. Miller, Lake Jackson, TX (US);
Rongjuan Cong, Lake Jackson, TX (US);
Charles M. Cheatham, Lake Jackson, TX (US);
Al Parrott, Lake Jackson, TX (US);
Wallace W. Yau, Las Vegas, NV (US);
Lonnie G. Hazlitt, Lake Jackson, TX (US);
Zhe Zhou, Lake Jackson, TX (US);
Alexander W. Degroot, Sugar Land, TX (US);
Matthew D. Miller, Lake Jackson, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The invention provides an apparatus for polymer chromatography, comprising at least one column that comprises a first stationary phase comprising one of the following: A) a material comprising at least one non-carbon atom, excluding glass or a metal, selected from molybdenum sulfide MoS2, tungsten sulfide WS2, silicon carbide SiC, boron nitride BN, or combinations thereof, or B) glass, or a metal, or combinations thereof, and a material comprising at least one non-carbon atom selected from molybdenum sulfide MoS2, tungsten sulfide WS2, silicon carbide SiC, boron nitride BN, or combinations thereof. The invention also provides a method for polymer chromatography, comprising introducing a solution, comprising a polymer, into a liquid flowing through a first stationary phase, and wherein the first stationary phase comprises one of foregoing materials (A) or (B).