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:
Aug. 25, 2009

Filed:

Dec. 10, 2007
Applicants:

Jacqueline K. Pease, St. Augustine, FL (US);

G. Gunar Mckendree, Jacksonville, FL (US);

Freddie L. Singleton, Switzerland, FL (US);

George S. Thomas, West Chester, PA (US);

Inventors:

Jacqueline K. Pease, St. Augustine, FL (US);

G. Gunar McKendree, Jacksonville, FL (US);

Freddie L. Singleton, Switzerland, FL (US);

George S. Thomas, West Chester, PA (US);

Assignee:

Hercules Incorporated, Wilmington, DE (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 1/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

Methods for reducing or inhibiting deposition on or within press felts to increase the effective life of the press felt and reduce or eliminate the need for batch cleaning are disclosed. The methods disclosed treat press felt while paper is being produced with compositions containing at least one enzyme. Additionally, the enzymes can be applied in combination with other non-enzymatic felt conditioning products either by blending and applying at the same application point or by applying the enzyme and the non-enzymatic felt conditioning product at two different locations along the felt. The treatments are applied continuously or intermittently.


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