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:
Jan. 20, 1998
Filed:
Jun. 02, 1995
Applicant:
Inventors:
Jonathan Howard Hodgkin, Burwood, AU;
Mervyn Benjamin Jackson, Glen Waverley, AU;
John West Loder, South Yarra, AU;
Assignee:
Commonwealth Scientific and Industrial Research Organisation, Campbell, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
428413 ; 525423 ; 525504 ; 528 99 ; 528109 ; 528113 ; 528117 ; 528322 ; 548429 ; 548433 ; 548461 ; 548472 ; 548473 ; 548476 ; 548513 ;
Abstract
A method for the preparation of a diaminobisimide compound of the formula (I) substantially free of oligomers: ##STR1## wherein Ar.sup.1 is an optionally substituted aromatic residue which provides for good conjugation between the nitrogen containing groups; and Ar is an optionally substituted aromatic residue characterized in that at least two molar proportions of an aromatic diamine of the formula (II)