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:
Jan. 05, 1993
Filed:
Nov. 30, 1989
Applicant:
Inventors:
Marcellus Peuckert, Hofheim am Taunus, DE;
Martin Bruck, Hofheim am Taunus, DE;
Thomas Gerdau, Eppstein, DE;
Tilo Vaahs, Kelkheim, DE;
Hans-Jerg Kleiner, Kronberg, DE;
Fritz Aldinger, Rodenbach, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427226 ; 427228 ; 427340 ; 427341 ; 427375 ; 427387 ; 4273936 ; 528 28 ; 528 38 ;
Abstract
The invention relates to a process for the production of a ceramic/fiber composite. The process comprises impregnating fibers with a molten polysilazane in a first step, converting the polysilazane in the fibers into the infusible state in a second step and, in a third step, heating the impregnated fibers to 800.degree. to 2000.degree. C. in an atmosphere of nitrogen, noble gas, or ammonia.