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:
Aug. 28, 2001
Filed:
Dec. 17, 1999
Applicant:
Inventors:
Blair Alex Owens, Cincinnati, OH (US);
Dimitris Ioannis Collias, Mason, OH (US);
Andrew Julian Wnuk, Wyoming, OH (US);
Assignee:
Paper Technology Foundation Inc., Kalamazoo, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B 1/00 ;
U.S. Cl.
CPC ...
C08B 1/00 ;
Abstract
The bleeding of lignosulfonates from lignosulfonate-treated substrates when contacted under humid conditions is reduced by rendering the lignosulfonates water-insoluble via reacting them with an amine polymer-epichlorohydrin adduct containing at least one quaternary ammonium group under acidic conditions.