Compositions: ceramic – Ceramic compositions – Clay containing
Reexamination Certificate
2006-12-12
2006-12-12
Sample, David (Department: 1755)
Compositions: ceramic
Ceramic compositions
Clay containing
C423S328200
Reexamination Certificate
active
07148169
ABSTRACT:
A method of method of making a formed ceramic body, comprising casting or jiggering a composition comprising a mullite-rich calcined kaolin obtained from a hydrous kaolin. Also provided is a method of modifying/increasing the casting rate of a formed body formulation comprising hydrous kaolin, the method comprising substituting at least 10% of the hydrous kaolin in the formulation with a mullite-rich calcined kaolin. Also provided is a ceramic body filter cake comprising a mullite-rich calcined kaolin, wherein the mullite-rich calcined kaolin is obtained from a hydrous kaolin and a method of modifying/increasing the filtration rate of a ceramic body filter cake comprising hydrous kaolin, the method comprising substituting at least 10% of the hydrous kaolin in the ceramic body filter cake with a mullite-rich partially calcined kaolin. Also provided are dried greenware products and final ware products comprising a mullite-rich calcined kaolin, wherein the mullite-rich calcined kaolin is obtained from a hydrous kaolin.
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[No author available] “Material Safety Data Sheet, Glomax LL,” prepared by Dry Branch Kaolin, Jan. 1991.
Adkins Tommy L.
Sagurton John D.
Sare Edward J.
Finnegan Henderson Farabow Garrett & Dunner LLP
Imerys Pigments, Inc.
Sample David
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