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:
May. 10, 2005
Filed:
Jun. 05, 2002
Jacob Owen Thompson, St. Louis, MO (US);
Sheldon Phillip Verrett, Olivette, MO (US);
Wei LI, St. Paul, MN (US);
Ulrike Waltraud Tschimer, Arden Hill, MN (US);
Jacob Owen Thompson, St. Louis, MO (US);
Sheldon Phillip Verrett, Olivette, MO (US);
Wei Li, St. Paul, MN (US);
Ulrike Waltraud Tschimer, Arden Hill, MN (US);
Solutia, Inc., St. Louis, MO (US);
Abstract
Compositions and method for improving properties of pulp produced or reducing the digester cycle time in alkaline chemical pulping processes in which an effective amount of at least one selected phosphonate or carboxylate compound or mixtures thereof is admixed with the alkaline aqueous mixture in the digester of the chemical pulping process. The compositions and method are especially well suited for use in the Kraft pulping process.