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. 16, 1986
Filed:
Feb. 22, 1985
Applicant:
Inventors:
Akira Yada, Kusatsu, JP;
Shusaku Matsumoto, Kyoto, JP;
Yoshihiro Kawamori, Joyo, JP;
Takao Saito, Nagaokakyo, JP;
Tadashi Nishiyama, Kyoto, JP;
Yoshitugu Adachi, Kyoto, JP;
Assignee:
Dai-Ichi Kogyo Seiyaku Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
522-3 ; 522 14 ; 522 79 ; 522 84 ;
Abstract
A process for preparing particulate water-soluble acrylic polymers, e.g. acrylamide or methacrylamide polymers and cationic acrylic polymers, having a high molecular weight, an excellent water solubility and a uniform particle size with a good productivity, which comprises: