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:
Jan. 24, 2017
Filed:
Jan. 28, 2013
Applicant:
Amcol International Corporation, Hoffman Estates, IL (US);
Inventors:
Michael Donovan, Huntley, IL (US);
Christos Athanassopoulos, Volo, IL (US);
Assignee:
AMCOL INTERNATIONAL CORPORATION, Hoffman Estates, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/34 (2006.01); B01J 20/12 (2006.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01);
U.S. Cl.
CPC ...
C08K 3/346 (2013.01); B01J 20/12 (2013.01); B01J 20/26 (2013.01); B01J 20/2803 (2013.01); B01J 20/28004 (2013.01); B01J 20/2805 (2013.01); B01J 20/28016 (2013.01); B01J 20/3021 (2013.01); B01J 20/3078 (2013.01); B01J 2220/46 (2013.01); B01J 2220/68 (2013.01);
Abstract
A hydraulic barrier composition can include granules of a water-swellable clay and a water-soluble polymer. Upon contact with a leachate at least portion of the polymer is solvated by the leachate and becomes entrapped in at least one of clay pores, at clay platelet edges, and between adjacent platelets.