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:
Jun. 24, 1997
Filed:
Nov. 29, 1995
Gunter Fassbinder, Wunsiedel, DE;
Hoechst CeramTec Aktiengesellschaft, Selb, DE;
Abstract
A corundum porcelain composition containing from 60 to 94% by weight of a component A and from 6 to 40% by weight of a component B, wherein component A contains from 0 to 70% by weight of alumina, from 20 to 70% by weight of clay material, from 10 to 50% by weight of glass formers and from 0 to 30% by weight of quartz, and component B comprises comminuted broken porcelain, the chemical composition of the mixture of the components A and B comprises from 20 to 75% by weight of SiO.sub.2, from 15 to 80% by weight of Al.sub.2 O.sub.3 and from 2 to 10% by weight of flux selected from the group consisting of K.sub.2 O, Na.sub.2 O, FeO, MgO, CaO, Li.sub.2 O; BaO, SrO, ZnO and fluoride, and the comminuted broken porcelain has a mean particle size between 25 and 800 .mu.m, useful, for example, in sintered bodies, such as insulators.