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. 21, 1990
Filed:
Dec. 19, 1988
Applicant:
Inventors:
William H Lewis, Palos Heights, IL (US);
Kristy M Bailey, Naperville, IL (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 45 ; 521 405 ; 521 455 ; 528499 ; 528502 ;
Abstract
A method for reconstituting superabsorbent polymer fines comprising the following steps: wetting the superabsorbent polymer fines sufficient to form a continuous amorphous gel of the fines; grinding the gel; and drying the gel which has been around to form a superabsorbent polymer material. Drying can optionally be followed by grinding and classification of the reconstituted superabsorbent polymer fines to desired sizes.