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:
Dec. 02, 1986
Filed:
Jan. 06, 1986
Applicant:
Inventor:
Susumu Harada, Koriyama, JP;
Assignee:
Nitto Boseki Co., Ltd., Fukushima, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08C / ;
U.S. Cl.
CPC ...
525369 ; 5253282 ; 525378 ; 526277 ; 526287 ; 526291 ; 526310 ;
Abstract
A process for preparing a methanolic solution of poly(allylamine) is disclosed, wherein an inorganic acid salt of polyallylamine (e.g. hydrochloride, phosphate or sulfate) is ground into a fine powder, which powder is dispersed in a methanolic solution of caustic alkali (e.g. NaOH or KOH) or ammonia and treated at the temperature of 0.degree. to 65.degree. C. for a period of 10 hours or less.
Harada, Susumu. (1986). Process for preparing a solution of poly(allylamine) (U.S. Patent No. 4626577). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4626577
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile