Core material
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United States of America Patent
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Jan 12, 2010
Grant Date -
Aug 11, 2005
app pub date -
Apr 19, 2003
filing date -
Jun 19, 2002
priority date (Note) -
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Abstract
A method for the production of cores and molds for casting molds, based on a base molding material and an organic or inorganic binding agent and an additive. According to the method, pre-forming substances are used in order to dispense with the use of sizing substances and to prevent the formation of ribs.
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