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:
Jun. 25, 1991
Filed:
Feb. 01, 1984
Applicant:
Inventor:
Dalip K Kohli, Norwalk, CT (US);
Assignee:
American Cyanamid, , ME (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
548521 ; 564328 ; 564336 ; 564346 ; 564347 ;
Abstract
Novel aromatic ether ketone diamine compounds and methods for their preparation are disclosed which comprise from about 3 to 8 aromatic rings interspersed with ether and ketone linkages. The novel ether ketone diamine compounds are useful as monomeric starting materials for the preparation of useful intermediates and useful thermoplastic and high temperature resistant polymers. In preferred embodiments, the novel ether ketone diamines are useful as curing agents for epoxy resin compositions and composite materials.