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:
Feb. 24, 2009
Filed:
Jun. 01, 2006
Laura M. Sherman, Naperville, IL (US);
Jane B. Wong Shing, Aurora, IL (US);
James G. Smith, Nanaimo, CA;
Laura M. Sherman, Naperville, IL (US);
Jane B. Wong Shing, Aurora, IL (US);
James G. Smith, Nanaimo, CA;
Nalco Company, Naperville, IL (US);
Abstract
The invention discloses a paper or paperboard produced from a slurry comprising cellulose fibers and an effective amount of SMS. In addition, a method for increasing retention and dewatering during the papermaking process is also disclosed. The method involves the addition of an effective amount of SMS to said papermaking process. The invention also discloses a method for increasing retention and drainage in a papermaking process comprising the steps of: adding both an effective amount of starch and an effective amount of SMS to a slurry of said papermaking process, wherein said starch is selected from the group consisting of: tapioca starch; potato starch; corn starch; waxy maize starch; rice starch; and wheat starch. Moreover, the invention comprises a method for increasing retention and drainage in a papermaking process comprising the steps of: adding both an effective amount of modified starch and an effective amount of SMS to a slurry of said papermaking process.