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. 18, 1993
Filed:
Jan. 10, 1991
Applicant:
Inventors:
Kwang-Sup Lee, Taejeon, KR;
Kil-Yeong Choi, Taejeon, KR;
Jong C Won, Taejeon, KR;
Byoung K Park, Seoul, KR;
In-Tae Lee, Kyungki, KR;
Assignees:
Korea Research Institute of Chemical Technology, Taejeon, KR;
Cheil Industries, Inc., Daegu, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
528170 ; 528125 ; 528126 ; 528128 ; 528171 ; 528173 ; 528174 ; 528176 ; 528179 ; 528188 ; 528189 ; 528220 ; 528229 ; 528351 ; 528352 ; 528353 ;
Abstract
The present invention relates to new polyetherimideimides having imideimide group with the following structural formula(I) and inherent viscosity of 0.27.about.0.71 dl/g, which can be made by effecting reaction between an aromatic bis(ether anhydride) and an organic diamine or an aromatic bis(nitro imideimide) and a metal salt of diol. ##STR1## Wherein, R is ##STR2##