Method for preparing biodegradable films from plant-based raw materials
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United States of America Patent
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Jun 11, 1996
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N/A
app pub date -
Mar 15, 1995
filing date -
Aug 24, 1992
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Abstract
There is provided a method for preparing biodegradable films from plant-based raw materials in the form of carbohydrates which method is continuous and carried out in one step. In the process the plant-based raw materials are modified and plastified and the films are prepared without interruption and in one step. The advantages of the invention reside in reduced shear stress of the starch molecules and thus in the improved properties of the films as well as in the cost-efficient, time-, energy-and space-saving manufacture.
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