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. 10, 1994
Filed:
Mar. 26, 1993
Applicant:
Inventors:
Takakazu Yamamoto, Yokohama, JP;
Takaki Kanbara, Yokohama, JP;
Assignee:
Tokyo Institute of Technology, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525540 ; 502159 ; 502162 ;
Abstract
A quaternary (iso)quinolinediyl polymer having a degree of polymerization of at least 5 is produced from an (iso)quinoline polymer by reacting with an alkyl halide and quaternizing the nitrogen atom in ring. Since it is soluble in water and organic solvents, this polymer can be shaped by a dry-process into fibers, films or the like, and had clear change of its color by chemical and electrochemical oxidation reduction.