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:
Sep. 05, 2000
Filed:
Mar. 16, 1998
Applicant:
Inventors:
Steven J Severtson, Lisle, IL (US);
Martin J Coffey, Naperville, IL (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21C / ;
U.S. Cl.
CPC ...
162-5 ; 162-8 ;
Abstract
Methods for controlling wax and other contaminants by improving the dispersion of these materials through the addition of treatment agents such as plasticizers, dispersants or wetting agents to the process of recycling paper and paperboard are disclosed. Preferred treatment agents include polymeric wetting agents, dispersants, plasticizers and combinations thereof.