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:
Mar. 07, 2000
Filed:
May. 06, 1998
Applicant:
Inventors:
Assignee:
Tosoh Corporation, Yamaguchi-ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08G / ;
U.S. Cl.
CPC ...
528397 ; 528220 ; 528223 ; 528228 ; 528229 ; 528422 ; 528423 ; 5253333 ; 5253334 ;
Abstract
A novel class of polyaryleneamines improved in physical and chemical properties, particularly in heat resistance and solvent resistance, and a process for producing the same are disclosed: said polymers having tertiary arylamino units bound in series.