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:
Mar. 29, 1988
Filed:
Feb. 26, 1986
Applicant:
Inventor:
Michel Biensan, Lons, FR;
Assignee:
M&T Chemicals Inc., Woodbridge, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525420 ; 525430 ; 525474 ; 528 26 ; 528350 ; 528351 ; 528353 ;
Abstract
Polyimides or poly(amide-imides), especially those containing a polysiloxane unit are improved by heating such polymers or their polyamic acid precursors with a polyfunctional aromatic compound. The polyfunctional aromatic compound is one which contains at least two reactive groups which may be --NH.sub.2, --COOH, --OH or secondary amino groups with at least one of the reactive groups being --NH.sub.2 or --COOH.