Starch treatment process
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United States of America Patent
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Jan 4, 1994
Grant Date -
N/A
app pub date -
May 18, 1992
filing date -
Aug 7, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a process for extruding or injection moulding starch-containing composition, a substantially transparent product is produced by providing that the starch used contains less than 8% by weight of water, that the water content of the starch in the barrel of the extruder or injection moulding machine is controlled so as to be within the range of from 5 to 20% by weight (based on the weight of the starch) and that water is removed from the composition immediately before the composition leaves the barrel of the extruder or the injection moulding machine so that the water content of the composition passing through the die and/or entering the mould is less than 3% by weight of the starch.
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