Method and Apparatus for Producing Bio-Degradable Foam
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United States of America Patent
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Issued Date -
Nov 1, 2007
app pub date -
Nov 26, 2004
filing date -
Nov 27, 2003
priority date (Note) -
Abandoned
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Abstract
Methods, associated products and apparatus are described for the production of biodegradable foam products using a controlled pressure increase due to compressed air and a controlled pressure decrease in pressure as key variables during a microwave heating cycle to produce a foamed product. The biodegradable product formed has improved characteristics including a density from 10 to 100 kg/m.sup.3; a soft and resilient structure; cushioning G-value characteristics to cushion an object with a fragility of 15 to 115; and a surface abrasion comparable to polystyrene.
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