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:
Mar. 01, 1988
Filed:
Jul. 26, 1984
Applicant:
Inventor:
Carl J Stacy, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 67 ; 73 231 ;
Abstract
In the analysis of polymers which are generally soluble only at elevated temperatures, at least the chromatographic columns in a high pressure liquid chromatography system for the analysis of such polymers are located in an oven maintained at a temperature suitable for maintaining the polymer in solution. Preferably, the detector used is also operable at such elevated temperatures. However, other apparatus such as pumps and injectors are operated at lower temperatures.