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. 09, 1985
Filed:
Jun. 12, 1980
Applicant:
Inventors:
Harold V Green, Dollard des Ormeaux, CA;
Thomas J Fox, Kirkland, CA;
Anthony M Scallan, Pointe Claire, CA;
Assignee:
Pulp and Paper Research Institute of Canada, Pointe Claire, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H / ;
U.S. Cl.
CPC ...
162169 ; 1621811 ; 1621812 ; 1621815 ; 1621818 ; 162182 ; 162183 ;
Abstract
Paper of improved properties is produced from pulp in which filler is selectively loaded within the fiber lumens by agitating a suspension of pulp and filler until the fiber lumens become loaded with filler, separating the residual suspended filler from the loaded fibers and vigorously washing the pulp until substantially all of the filler on the external surfaces of the fibers is removed.