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. 02, 1989
Filed:
May. 06, 1987
Applicant:
Inventors:
Susumu Kondo, Kyoto, JP;
Tetsuo Moriya, Hirakata, JP;
Assignee:
Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525 59 ; 524459 ;
Abstract
Polymerization of acrylic or methacrylic acid and a water-soluble acrylic or methacrylic acid salt in the presence of a carboxyl group-containing polyvinyl alcohol resin gives highly water-absorbing resins with the water absorbency, water absorption rate, water insolubility and other characteristics well balanced therein.