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:
Sep. 09, 1980
Filed:
Sep. 13, 1978
Applicant:
Inventors:
Shigenao Kawakami, Hirakata, JP;
Shigenori Tajiri, Ibaraki, JP;
Hiroshi Tashiro, Minoo, JP;
Shin-ichi Isaoka, Minoo, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08f / ;
U.S. Cl.
CPC ...
525369 ;
Abstract
A process for preparing hydrolyzed acrylamide and methacrylamide polymers which comprises hydrolyzing a powdery acrylamide or methacrylamide polymer dispersed in a solvent mixture comprising water and at least one water-miscible organic solvent selected from the group consisting of ketones, nitriles, ethers and furans.
Kawakami, Shigenao. (1980). Method of hydrolyzing acrylamide and methacrylamide polymers (U.S. Patent No. 4221888). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4221888
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile