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:
Apr. 07, 1987
Filed:
Jun. 25, 1986
Applicant:
Inventors:
Jean-Jacques Lebrun, Caluire, FR;
Hugues Porte, Lyons, FR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C67F / ;
U.S. Cl.
CPC ...
556412 ; 528 28 ; 528 38 ; 423324 ;
Abstract
A process for the thermal treatment of a polysilazane at a temperature from about 40.degree. C. to 220.degree. C. The polysilazane contains on average at least two, preferably at least three, .tbd.SiH groups per molecule and at least two ##STR1## groups and, if appropriate, unsaturated aliphatic hydrocarbon groups bonded to the silicon atoms. The polysilazanes treated in this manner have good thermal behavior and can be used in particular as precursors of ceramic products with a high yield of inorganic products.