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:
Dec. 01, 2015
Filed:
Nov. 01, 2013
Applicant:
Ecolab Usa Inc., Naperville, IL (US);
Inventors:
William A Granger, Fort Gratiot, MI (US);
George L Dennis, Wilmington, DE (US);
Tommy Jacobson, Helsinki, FI;
Assignee:
ECOLAB USA INC., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/67 (2006.01); D21H 21/10 (2006.01); D21H 21/28 (2006.01); D21H 27/00 (2006.01); D21H 17/37 (2006.01); D21H 17/52 (2006.01); D21H 21/20 (2006.01);
U.S. Cl.
CPC ...
D21H 17/675 (2013.01); D21H 17/375 (2013.01); D21H 17/52 (2013.01); D21H 21/20 (2013.01); D21H 27/005 (2013.01);
Abstract
The disclosure is directed toward methods for delivering a pigment dispersion and an inverted retention aid emulsion to a papermaking process. The method comprises injecting the pigment dispersion and the inverted retention aid emulsion into a process line of the papermaking process. The pigment dispersion comprises titanium dioxide, and the retention aid may comprise an anionic flocculant. The process line is located downstream from a screen and upstream from a headbox. The methods may incorporate the use of one or several nozzle devices.