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:
Apr. 08, 2014
Filed:
Mar. 13, 2009
Applicants:
Fushan Zhang, Hockessin, DE (US);
William S. Carey, Wallingford, PA (US);
Erin A. S. Doherty, Hockessin, DE (US);
John Todd Sarraf, Kennett Square, PA (US);
Inventors:
Fushan Zhang, Hockessin, DE (US);
William S. Carey, Wallingford, PA (US);
Erin A. S. Doherty, Hockessin, DE (US);
John Todd Sarraf, Kennett Square, PA (US);
Assignee:
Hercules Incorporated, Wilmington, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/26 (2006.01); D21H 17/53 (2006.01); D21H 17/69 (2006.01); D21H 21/02 (2006.01); C08L 1/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a stable aqueous slurry composition comprising clay or clay-like material, hydrophobically associative polymer, and optionally a surfactant; and a method of inhibiting the deposition of organic contaminants in pulp and papermaking applications.