Sleeve mixes containing stabilized microspheres and their use in making riser sleeves
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United States of America Patent
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Sep 11, 2001
Grant Date -
N/A
app pub date -
Mar 21, 2000
filing date -
Mar 21, 2000
priority date (Note) -
Expired
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Abstract
This invention relates to exothermic and insulating sleeve mixes comprising (1) a sleeve composition comprising stabilized hollow aluminosilicate microspheres, and (2) a chemically reactive binder. Sleeves are formed from the sleeve mix and are cured in the presence of a catalyst by the cold-box or no-bake curing process. The invention also relates to a process for casting metal parts using a casting assembly where the sleeves are a component of the casting assembly. Additionally, the invention relates to the metal parts produced by the casting process.
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