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.

Date of Patent:
Jun. 10, 2014

Filed:

Sep. 12, 2012
Applicants:

Gary S. Furman, Jr., St. Charles, IL (US);

Robert M. Lowe, Chicago, IL (US);

David J. Castro, DeKalb, IL (US);

Inventors:

Gary S. Furman, Jr., St. Charles, IL (US);

Robert M. Lowe, Chicago, IL (US);

David J. Castro, DeKalb, IL (US);

Assignee:

Ecolab USA Inc, Naperville, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/16 (2006.01); D21H 17/17 (2006.01); D21H 17/55 (2006.01); D21H 17/62 (2006.01); D21H 21/16 (2006.01); D21H 21/18 (2006.01); C07D 307/60 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention is directed towards methods and compositions for improving the sizing of paper using PAE. Proper sizing of paper requires that a sizing agent adequately disperse so as to evenly distribute on the paper. Proper sizing also requires that the agent not cause runnability or chemical problems with other materials or equipment used in the papermaking process. PAE displays unexpected attributes that allow it to disperse sizing agents. Best of all it is not subject to the same overdose effect of typical emulsifiers such as cationic starch. As a result PAE is an excellent option for use in sizing paper.


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