Water-soluble salt cores
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United States of America Patent
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Mar 26, 2013
Grant Date -
May 31, 2012
app pub date -
Feb 7, 2012
filing date -
Dec 17, 2003
priority date (Note) -
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Abstract
The invention provides water-soluble salt cores which are produced by compacting a mixture of water-soluble salts and a binding agent, under pressure and subsequently subjecting them to heat-treatment. The binding agent is an inorganic phosphate or a mixture of inorganic phosphates having a proportion of between 0.5 and 10 wt. % of the mixture.
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