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:
Jul. 05, 1994
Filed:
Jan. 14, 1992
Applicant:
Inventors:
G Allan Stahl, Humble, TX (US);
Henry L Hsieh, Bartlesville, OK (US);
Ahmad Moradi-Araghi, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; C02F / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
528488 ; 523312 ; 210732 ; 210734 ; 210735 ; 524922 ;
Abstract
A process capable of operation under hostile conditions for accelerating the sedimentation of suspended solids in an aqueous suspension using a flocculating agent comprising a water-soluble polymer composition produced from a monomer composition comprising at least one of a hydrophilic N-vinyl lactam or a hydrophilic vinyl-containing sulfonate.