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. 04, 1998
Filed:
Apr. 15, 1997
Applicant:
Inventors:
Steve L Hsu, East Providence, RI (US);
Ahmad Naiini, Warwick, RI (US);
William D Weber, Cranston, RI (US);
Andrew J Blakeney, Seekonk, MA (US);
Assignee:
Olin Microelectronic Chemicals, Inc., Norwalk, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
528170 ; 528173 ; 528188 ; 528229 ; 528310 ; 528312 ; 528313 ; 528322 ; 528324 ; 528331 ; 528332 ; 528337 ; 528345 ; 528347 ; 528353 ; 524600 ; 524606 ;
Abstract
A process for producing a polyimide composition by reacting at least one polyamic acid or at least one polyamic ester or a mixture of at least one polyamic acid and at least one polyamic ester with a selected phosphoramide in the presence of at least one base catalyst to from a polyimide composition.