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:
May. 16, 1978
Filed:
Mar. 07, 1975
Applicant:
Inventors:
Stuart H Ganslaw, Piscataway, NJ (US);
Howard G Katz, East Windsor, NJ (US);
Assignee:
National Starch and Chemical Corp., Bridgewater, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
526 15 ; 128284 ; 128296 ; 2524 / ; 2524 / ; 2524 / ; 260 / ; 260 797 ; 260113 ; 260117 ; 260119 ; 260D / ; 424 65 ; 424 66 ; 424 68 ; 424 78 ; 424 81 ; 526 16 ; 526 473 ; 526 476 ; 526 81 ; 526 86 ; 526240 ; 526317 ; 536-3 ; 536101 ; 536102 ; 536121 ;
Abstract
A dry, solid, water-swellable, water-insoluble absorbent composition of matter comprises an ionic complex of a water-soluble anionic poly-electrolyte and a polyvalent metal cation. The composition is characterized by an ability to uncomplex at an elevated pH and recomplex at a lower pH.