C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
99/118
C08L 3/02 (2006.01) C08J 5/00 (2006.01) C08L 3/00 (2006.01)
Patent
CA 2001587
In order to produce thermoplastically workable starch, an addition substance is admixed to a substantially native or natural starch and the mixture caused to melt by feeding of heat and mechanical energy. The addition substance is a substance which lowers the melting temperature of the starch so that the melting temperature of the starch together with this addition substance lies below the decomposition temperature of the starch, and furthermore the addition substance has a solubility parameter of more than 15 cal 1/2 cm -3/2. After the melting of the mixture of starch and addition substance, the melt is mixed until it is at least substantially homogeneous. The vapor pressure of the addition substance is preferably less than 1 bar in the melting range of the mixture of starch and addition substance.
Tomka Ivan
Bio-Tec Biologische Naturverpackungen Gmbh & Co. Kg
Kirby Eades Gale Baker
LandOfFree
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