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. 25, 1997
Filed:
Feb. 14, 1995
Applicant:
Inventors:
Assignee:
Kvaerner Pulping Aktiebolag, Karlstad, SE;
Primary Examiner:
Int. Cl.
CPC ...
D21C / ;
U.S. Cl.
CPC ...
162 65 ;
Abstract
Provided is a method for reducing resin content in sulfite pulp, in an ozone bleaching process where the sulfite pulp is bleached using ozone, at a pulp concentration of about 6 to about 14% by weight, and at a pH of less than about 7. The process includes the steps of alkalizing the sulfite pulp to a pH of greater than about 7 after ozone bleaching and then mechanically processing the sulfite pulp to press resin out of the sulfite pulp.
Dillner, Bjorn. (1997). Method of reducing the resin content in sulfite pulp (U.S. Patent No. 5605604). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5605604
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile