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:
Aug. 11, 2009
Filed:
Sep. 16, 2005
Applicants:
Jiang Ding, Wilmington, DE (US);
Christian Peter Lenges, Wilmington, DE (US);
Christopher Dennis Simone, Pickerington, OH (US);
Brian C. Auman, Pickerington, OH (US);
Inventors:
Jiang Ding, Wilmington, DE (US);
Christian Peter Lenges, Wilmington, DE (US);
Christopher Dennis Simone, Pickerington, OH (US);
Brian C. Auman, Pickerington, OH (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 73/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed to the use polycyclic diamines. These diamines, when polymerized with dianhydrides, and optionally other non-polycyclic diamines are used to form new polyamic acids. The polyamic acids can be imidized to form a new class of useful polyimide resins and polyimide films, particularly in electronics type applications.