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. 15, 2008
Filed:
Sep. 04, 2002
Applicants:
Sahbi Belkhiria, Chavornay, CH;
Pierre Alain Fleury, Ramlinsburg, CH;
Ibrahim Al-alim, Riyadh, SA;
Inventors:
Assignee:
List AG, Arisdorf, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F26B 5/05 (2006.01);
U.S. Cl.
CPC ...
Abstract
A continuous process for the production of dried superabsorbent polymers (SAPs) the polymerization reaction is carried out either in an initially homogenous aqueous monomer solution (bulk aqueous solution polymerization) or in a heterogeneous water-in-oil reactant mixture (reverse phase suspension or emulsion polymerization) within a continuous closed polymerization reactor, then the resulting polymer gel is dried within a continuous moved bed in a closed dryer, avoiding the needs of standard intermediate maturity tank(s).