Method for preparation of bulk shaped foam articles
AssigneeCellaris Limited
InventorsGideon Grader, Gennady Shter
Life of this patent
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Abstract
A process for the preparation of bulk foams which comprises contacting ceramic foam particles with a hydrophobic material to form impregnated and/or coated ceramic foam particles with hydrophobic properties. The impregnated and/or coated ceramic foam particulate material is mixed with a ceramic binding material with or without an organic binder in an aqueous composition solution to form a castable and pressable mixture. The castable and pressable mixture is cast, and optionally pressed, in a mold to form a wet green body, which is in turn dried to form a dried green body, and is then fired and sintered to form a bulk shape foam article.
Claims4
A process for the preparation of bulk shaped ceramic articles comprising the steps of:
- a. contacting ceramic foam particulate material with a hydrophobic material to form impregnated and coated ceramic foam particulate materials with hydrophobic properties;
- b. providing an aqueous suspension of a ceramic binder, with or without an organic binder, and mixing the aqueous suspension with said impregnated and/or coated ceramic foam particulate materials to form a castable and pressable mixture;
- c. casting or pressing said castable and pressable mixture in a mold to form a wet green body;
- d. drying said wet green body to form a dried green body;
- and
- f. firing and sintering said dried green body to form the bulk shaped ceramic article.
Dependencies are inferred from the claim text.