Compositions and methods for use in three dimensional model printing
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United States of America Patent
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app pub date -
Oct 2, 2007
filing date -
Mar 13, 2000
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Abandoned
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Abstract
Embodiments of the invention are directed to a method of producing three-dimensional prototype molds for use in investment casting. The method includes dispensing modeling material and support material in a predetermined arrangement, in layers, to produce a three-dimensional mold having an outer shell. Generally, the out shell includes modeling material and the interior of the mold includes support material. Then the mold is cured.
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