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:
Jun. 24, 1986
Filed:
Dec. 21, 1984
Applicant:
Inventors:
Michael N Hull, Bardonia, NY (US);
Vacheslav M Yasnovsky, Rockland, NY (US);
Assignee:
International Paper Company, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21C / ;
U.S. Cl.
CPC ...
162 50 ; 162 72 ; 162 79 ;
Abstract
Reductive bleaching of lignin containing pulps employing polydentate ligand complexes of dipositive vanadium, chromium and titanium. High brightness pulps with good reversion stability are obtained. The process is essentially polution free as the reduced complexes can be repeatedly regenerated electrochemically.
Hull, Michael. (1986). Process for the electrochemical reductive bleaching of lignocellulosic (U.S. Patent No. 4596630). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4596630
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile