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:
Nov. 06, 2001
Filed:
Jul. 18, 2000
Applicant:
Inventors:
Wayne M. Gibbons, Bear, DE (US);
Paul Joseph Shannon, Exton, PA (US);
Hanxing Zheng, Wilmington, DE (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
C07C / ;
Abstract
The invention provides novel crosslinking aromatic diamines useful in preparing polyamic acids and polyimides for optical alignment layers. The novel compositions comprise crosslinking diamines containing a C,-C,linear or branched hydrocarbon chains containing 1 to 4 carbon-carbon double bonds.