Starch foils and/or films and a method and use of a device for the production thereof

  • US 9,486,415 B2
  • Filed: 03/03/2010
  • Issued: 11/08/2016
  • Est. Priority Date: 03/03/2009
  • Status: Active Grant
First Claim
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1. A casting method for producing a foil and/or film based on starch wherein a mixture comprising starch, in which more than 50 weight percent of the starch in a liquid phase is present as particles of granular starch, which is destructured at most up to stage 2.2, is cast without using an extruder and shaped to form a film and during and/or after this shaping the mixture is solidified by an increase in temperature by destructuring the granular starch,wherein starch being destructured to stage 2.2 is defined in that 50-60% of the starch grains are no longer birefringent in a polarization microscope.

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