Method to separate silicone seal by thermal degradation
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United States of America Patent
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Oct 19, 2004
Grant Date -
Apr 22, 2004
app pub date -
Oct 14, 2003
filing date -
Oct 15, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for removing silicone sealant from glass-ceramic surfaces is provided. The method includes heating the sealant to a temperature greater than 325 degrees Celsius so that it thermally degrades and then, mechanically removing the sealant from the glass-ceramic surface. A method of salvaging a glass-ceramic cooking surface from a cooktop including silicone sealant between a cooktop frame and the glass-ceramic cooking surface is also provided. If a defect is detected in the cooktop during manufacturing or distribution, the entire cooktop is heated to a predetermined temperature to allow the silicone sealant to be easily removed without using a knife or other potentially damaging devices. Once the silicone sealant is removed, the glass-ceramic cooking surface may be reused to produce another cooktop assembly.
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