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. 17, 1981
Filed:
Mar. 16, 1979
Applicant:
Inventors:
Kazuto Harada, Kurashiki, JP;
Toshihiko Yoshitake, Kurashiki, JP;
Assignee:
Kuraray Co., Ltd., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525 51 ; 128284 ; 128285 ; 525 61 ;
Abstract
Absorbent materials for aqueous fluids, which absorb fluid rapidly and swell uniformly, comprise modified polyvinyl alcohol polymers obtained by reacting in an anhydrous condition a polyvinyl alcohol polymer with a cyclic acid anhydride and causing partial crosslinking of said polymer. Absorbent articles such as diapers, sanitary napkins, sanitary tampons, blood absorbents for use in surgical operations, bandages and dressings comprise said absorbent materials and fluid absorbing holders therefor.