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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.:

US 9200408 B1

PDFFull Text
Date of Patent:
Dec. 01, 2015

Filed:

Nov. 01, 2013

Method of delivering a pigment dispersion and retention aid to a papermaking process

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:

Benjamin Carlsen

Primary Examiner:

Dennis Cordray

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.

Find Patent Forward Citations

Granger, William. (2015). Method of delivering a pigment dispersion and retention aid to a papermaking process (U.S. Patent No. 9200408). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9200408

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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