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. 13, 2010
Filed:
Feb. 28, 2005
Applicants:
Tony Whittaker, Bradford, GB;
Peter Norman, Liversedge, GB;
Darryl Smith, Singapore, SG;
Inventors:
Assignee:
Ciba Specialty Chemicals Water Treatments LTD., Bradford, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 11/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process of dewatering an aqueous suspension comprising treating the suspension with a dewatering amount of a reverse phase polymer, and subjecting the suspension to a mechanical dewatering to form a cake, characterised in that the reverse phase polymer only partially inverts to bring about flocculation and thickening of the suspension, and then fully inverts during the further dewatering to form a cake.