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. 31, 1994
Filed:
May. 17, 1993
Applicant:
Inventors:
Christiane Blanchard, Le Breuil et Merleac, FR;
Evelyne Chassagneux, Millery, FR;
Gerard Mignani, Lyons, FR;
Michel Vaultier, Chateaugiron, FR;
Assignee:
Rhone-Poulenc Chimie, Courbevoie, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501 96 ; 528-7 ; 423284 ;
Abstract
Novel boron/nitrogen compounds having the formula (1): ##STR1## and the products of the at least partial reduction thereof, are converted into BN ceramic materials by thermally polymerizing same, whether or not in the presence of suitable polymerization catalyst, and then pyrolyzing the boron/nitrogen polymers thus obtained.