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:
Feb. 02, 1993
Filed:
Oct. 17, 1990
Applicant:
Inventors:
Carlisle M Herron, Memphis, TN (US);
David J Cooper, Memphis, TN (US);
Assignee:
The Procter & Gamble Cellulose Company, Memphis, TN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H / ; D21C / ;
U.S. Cl.
CPC ...
428364 ; 4284752 ; 428368 ; 1621576 ; 162158 ; 162182 ; 81161 ; 536 56 ; 536 63 ;
Abstract
Disclosed are individualized, crosslinked fibers, and process for making such fibers. The individualized, crosslinked fibers have a C.sub.2 -C.sub.9 polycarboxylic acid crosslinking agent reacted with the fibers in the form of intrafiber crosslink bonds. Preferably, the crosslinking agent is citric acid, and preferably, between about 0.5 mole % and about 10.0 mole % of the crosslinking agent reacts to form the intrafiber crosslink bonds. The individualized, crosslinked fibers are useful in a variety of absorbent structure applications.