Compositions: coating or plastic – Coating or plastic compositions – Alkali metal silicate containing
Patent
1994-02-04
1995-02-14
Mall, Michael
Compositions: coating or plastic
Coating or plastic compositions
Alkali metal silicate containing
106634, 106214, 501141, 273363, 273364, C04B 1204
Patent
active
053891422
ABSTRACT:
The improved method of making a frangible, biodegradable clay target includes forming a plastic mixture by uniformly blending together clay, water and binder wherein the binder consists of about 1-2 percent of sodium silicate and about 0-1 percent of dextrin, by weight of the mixture, the total concentration of binder not exceeding about 2 percent, by weight of the mixture. The water is present in a concentration not in excess of 10 percent, by weight of the mixture and clay forms the remainder of the mixture. The mixture is charged into a forming press and hot pressed and dried at about 300.degree.-400.degree. F. to a finished, non-fired greenware frangible, biodegradable clay target. The improved composition is as set forth above.
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Mall Michael
Nist Donald E.
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