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:
Mar. 10, 1992
Filed:
Feb. 20, 1990
Applicant:
Inventors:
Conrad W Kamienski, Gastonia, NC (US);
Robert S Wedinger, Gastonia, NC (US);
Assignee:
FMC Corporation, Philadelphia, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H / ;
U.S. Cl.
CPC ...
427296 ; 162-9 ; 1621576 ; 162158 ; 1621681 ; 1621811 ; 1621812 ; 162182 ; 427391 ; 427395 ; 427411 ; 4274198 ;
Abstract
A process for strengthening the cellulose in materials which have been treated with an alkaline organometallic compound selected from a metal alkyl, metal alkoxide or alkyl metal alkoxide to deacidify the cellulose and which cellulosic material is wet with treatment solvent, by treating the undried cellulosic material with a polar monomer and then drying the cellulose material and polymerizing the monomer by subjecting the treated cellulose to vacuum and heat.