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. 12, 1996
Filed:
Oct. 09, 1990
Applicant:
Inventors:
Jeffrey S Stults, Grand Island, NY (US);
Henry C Lin, Grand Island, NY (US);
Robert A Buchanan, Grand Island, NY (US);
Robert L Ostrozynski, Williamsville, NY (US);
Assignee:
Occidental Chemical Corporation, Niagara Falls, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G08G / ; G08G / ;
U.S. Cl.
CPC ...
528353 ; 528125 ; 528128 ; 528170 ; 528171 ; 528172 ; 528173 ; 528174 ; 528176 ; 528183 ; 528185 ; 528188 ; 528220 ; 528229 ; 528350 ;
Abstract
Disclosed are bis-meta-benzotrifluoride compounds having the general formula ##STR1## where each A is independently selected from the group consisting of NO.sub.2, NH.sub.2, and NH.sub.3.sup.+ Z.sup.-, Z.sup.- is an anion and B is selected from the group consisting of O, CO, S, SO, and SO.sub.2. The diamine compounds are useful as monomers in making polyimides, polyamide-imides, and polyamides.