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:
Jan. 03, 1989
Filed:
Apr. 16, 1987
Applicant:
Inventors:
Michael Diamantoglou, Erlenbach, DE;
Christoph Josefiak, Erlenbach, DE;
Helmut Magerlein, Obernburg, DE;
Assignee:
Akzo NV, , NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08L / ; B01J / ; C08J / ;
U.S. Cl.
CPC ...
521 841 ; 521147 ; 521149 ; 523218 ; 524430 ; 524450 ; 524555 ; 524556 ; 524562 ; 524847 ;
Abstract
A new water-swellable composition of a gelling agent based on hydrolyzed homo- or copolymers of acrylonitrile and of an inert metal oxide was synthesized. In the process, 1 to 22% of the nitrile groups were saponified to amide groups and 99 to 78% to alkali-metal salts. The obtained composition had a spongy structure and was characterized by high values with regard to both swelling capacity and swelling rate. Therefore it is particularly suitable for diaper manufacture and for agricultural use.