Binder for whiteware ceramic mixture and method of using same
AssigneeUnimin Corporation
InventorClayton Collins
Life of this patent
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Abstract
An improvement in a mixture for forming into a body that is to be fired into a “whiteware ceramic product” wherein the mixture is a compound of clay and other minerals with a ferric oxide content of less than about 5.0% by weight of the dry mixture. The improvement includes adding to the mixture a binder in the form of a combination of protein and a vegetable flour with an equivalent gram strength of at least 30 grams and a protein content of 20-50% of the binder, where the binder is in the range of 0.05% to 0.50% by weight of the dry mixture.
Claims80
The improvement in a mixture for forming into a body that is to be fired into a whiteware ceramic product, said improvement includes adding to said mixture a binder in the form of a combination of collagen protein and vegetable flour with an equivalent gram strength of at least about 30 grams and a protein content of about 30-50% of said binder, said binder having a particle size of less than about 20 mesh.
A naturally occurring clay for use in a mixture to produce a fired whiteware body, said clay including a binder in the form of a combination of collagen protein and a vegetable flour, said binder being 0. 10 to 5.0 percent by weight of said clay.
A naturally occurring clay as defined in claim 35 wherein said binder has an equivalent gram strength of at least 30 grams and a protein content of at least 30 percent by weight of said binder.
A method of producing a mixture for making “green” body to be fired into a whiteware ceramic product, said method comprising:
- (a) combining clay with at least one other mineral;
- (b) adding to said mineral combination a protein binder in an amount of at least about 0.05 percent by weight of said mineral combination;
- and,
- (c) mixing said mineral combination and said binder by a mechanical mixer.
The improvement in a mixture for forming into a body to be fired to make a whiteware ceramic product, said improvement comprises adding a binder in the form of a protein and a vegetable flour with an equivalent gram strength of at least about 30 grams and a protein content of 20-50% of said binder, said binder having a particle size of greater than 20 mesh.
The improvement in a mixture for forming into a body that is to be fired into a whiteware ceramic product, said improvement includes adding to said mixture a binder in the form of a protein with a protein content of 30-50% of said binder, said binder having a particle size of less than about 20 mesh and greater than about 200 mesh.
Dependencies are inferred from the claim text.