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. 13, 1979
Filed:
Mar. 23, 1977
Applicant:
Inventor:
Johann Siebels, Wolfsburg, DE;
Assignee:
Volkswagenwerk Aktiengesellschaft, Wolfsburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; C04B / ; B01J / ;
U.S. Cl.
CPC ...
2524 / ; 106 734 ; 106 735 ; 106 65 ;
Abstract
A high temperature resistant, heat insulating ceramic material comprises a mixture of 30 to 60 volume percent aluminum oxide power and 70 to 40 volume percent alumina-silica fibers sintered together at temperatures between 1200.degree. and 1550.degree. C. so that .alpha.-aluminum oxide is present in the sintered material. The ceramic material can be used as a material for hollow bodies which are charged with hot gases, and particularly, for cores of reactors and/or catalytic converters in exhaust gas purification systems of internal combustion engines.