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:
Jan. 31, 2006
Filed:
Jun. 12, 1998
Process for stabilizing the ph of a pulp suspension and for producing paper from the stabilized pulp
Applicants:
Hannu Juhani Leino, Espoo, FI;
Anna Linnea Holmberg, Lidingö, SE;
Inventors:
Hannu Juhani Leino, Espoo, FI;
Anna Linnea Holmberg, Lidingö, SE;
Assignee:
Aga Aktiebolag, Lidingo, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/64 (2006.01); D21H 17/73 (2006.01); D21C 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for stabilizing the pH of a pulp suspension with buffering agents and to a process for producing paper from a stabilized pulp suspension. The alkalinity of the pulp suspension is increased by a combination of an alkali metal hydroxide feed and a carbon dioxide feed. Said feeds provide a significant buffering effect which stablilizes the pH of said pulp suspension for the paper making process.
Leino, Hannu. (2006). Process for stabilizing the ph of a pulp suspension and for producing paper from the stabilized pulp (U.S. Patent No. 6991705). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6991705
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile