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:
May. 19, 1992
Filed:
Mar. 30, 1990
Applicant:
Inventors:
Krishna G Sachdev, Wappingers Falls, NY (US);
John P Hummel, Verbank, NY (US);
Ranee W Kwong, Wappingers Falls, NY (US);
Robert N Lang, Pleasant Valley, NY (US);
Leo L Linehan, Beacon, NY (US);
Harbans S Sachdev, Wappingers Falls, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528353 ; 528351 ;
Abstract
Viscosity stable, essentially gel-free linear polyamic acids are provided by a process utilizing offset stoichiometry. Polyimides formed from such polyamic acids have low TCE and low dielectric constants. Methods for improved adhesion of polyimides are also disclosed.