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:
Oct. 22, 1985
Filed:
Jan. 09, 1984
Applicant:
Inventors:
Gerard M Aberson, Cobb County, GA (US);
Gerard J Ring, Cherokee County, GA (US);
Assignee:
Kimberly-Clark Corporation, Neenah, WI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ; B32B / ; C09K / ; C09K / ; F26B / ;
U.S. Cl.
CPC ...
428 74 ; 34-9 ; 34 42 ; 34DI / ; 1281 / ; 128156 ; 252194 ; 428201 ; 428247 ; 428286 ; 428290 ; 4283119 ; 428913 ; 524186 ; 524236 ; 524417 ; 524916 ; 5253298 ; 5253299 ; 525367 ; 525371 ; 525374 ; 525383 ; 536 76 ; 536101 ; 536102 ; 536124 ; 604364 ; 604368 ;
Abstract
The invention comprises of an anionic polyelectrolyte hydrogel reversibly cross-linked with a polyvalent metal cation having a valence of at least two. This hydrogel may be combined with a removal agent for imparting delayed swelling characteristics when contacted with a water-containing fluid. The delayed swelling allows the water-containing fluid to penetrate or permeate the system before swelling is initiated, thereby providing enhanced wetting prior to the onset of swelling and alleviating gel blockage.