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. 06, 2007
Filed:
Jul. 21, 2004
Jacob Owen Thompson, St. Louis, MO (US);
Sheldon Phillip Verrett, Olivette, MO (US);
Steven John Severtson, Shoreview, MN (US);
Jeremy E. Loy, Vernon Hills, IL (US);
Jacob Owen Thompson, St. Louis, MO (US);
Sheldon Phillip Verrett, Olivette, MO (US);
Steven John Severtson, Shoreview, MN (US);
Jeremy E. Loy, Vernon Hills, IL (US);
Solutia Inc., St. Louis, MO (US);
Abstract
Compositions and method for improving inhibition of calcium salt scale formation under the conditions found in chemical pulp processes in which an effective amount of selected phosphonates or phosphonate blends is admixed with the aqueous digester composition in a chemical pulping process during the digestion stage. The compositions and method are especially well suited for use in the Kraft pulping process.