Thermochromic material, molded article comprising said material and use thereof
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United States of America Patent
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Nov 24, 2015
Grant Date -
Sep 3, 2015
app pub date -
Aug 8, 2013
filing date -
Sep 24, 2012
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Abstract
The invention relates to a thermochromic material comprising at least one biopolymer, at least one natural dye and at least one reaction medium, selected from the group of fatty acids and derivatives thereof, gallic acid and derivatives thereof and mixtures thereof. The thermochromic material according to the invention is completely based on non-toxic, natural products. Processing into materials or molded articles can occur, according to the invention, by means of conventional extrusion technology in the form of flat film, blown film or sheets or multi-wall sheets. The thermochromic material can be used in particular in the food industry and medical technology.
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