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:
Apr. 30, 2002
Filed:
Sep. 28, 2000
Applicant:
Inventors:
Charles Q. Yang, Athens, GA (US);
Guozhong Xu, Athens, GA (US);
Assignee:
University of Georgia Research Foundation, Inc., Athens, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H 1/706 ; D21H 1/736 ;
U.S. Cl.
CPC ...
D21H 1/706 ; D21H 1/736 ;
Abstract
The strength properties of paper are improved by treating the paper with a hydroxy-containing polymer, a multifunctional aldehyde and a catalyst. The multifunctional aldehyde is present at a concentration of about 50% to about 800% weight percent of the polymer, the catalyst is present at a weight ratio of between about 1:0.1 to about 1:2 multifunctional aldehyde:catalyst and the total weight of the polymer, aldehyde and catalyst is between about 0.1% to about 10% based on the dry weight of the paper.