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:
Feb. 21, 1995
Filed:
May. 03, 1993
Applicant:
Inventors:
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528292 ; 528272 ; 528288 ; 528298 ; 528302 ; 528307 ; 528308 ; 5283086 ; 528335 ;
Abstract
A polyester copolymer having an aromatic amine incorporated in the main chain, which is excelent in thermal stability as well as dynamic property, and a process for the production of the polyester copolymer, whereby the existing installation of the prior art can be used as it is, thus resulting in lowering of the production cost, are provided. The polyester copolymer comprises an aromatic dicarboxylic acid, diol and at least one compound selected from the group consisting of aromatic compounds having amino group, represented by the following general formula (I),