C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 3/02 (2006.01) B65D 65/40 (2006.01) C08L 31/04 (2006.01) C08L 33/08 (2006.01) C08L 33/10 (2006.01) C08L 75/00 (2006.01)
Patent
CA 2173583
The description relates to a shapeable composite material based on thermomechanically hydrolyzed starch in a homogenous mixture with synthetic polymer compounds. To optimise its mechanical strength, synthetic polymer compounds with lateral and/or terminal staight- chained and saturated fatly radicals are added and homogenised with the thermoplasticised starch in selected quantity ratios. The invention also relates to the process for producing such a shape-processable composite material and its use to produce mouldings, e.g. packaging materials such as foils, bottles, jars, boxes and the like.
L'invention concerne un matériau composite modelable à base d'amidon hydrolysé thermomécaniquement en mélange homogène avec des composés polymères synthétiques. Afin d'optimiser sa résistance mécanique, on ajoute des composés polymères synthétiques comportant des restes gras saturés et linéaires situés latéralement et/ou en fin de chaîne, lesdits polymères synthétiques étant homogénéisés avec l'amidon thermoplastifié, dans des rapports volumétriques choisis. L'invention concerne en outre le procédé de production d'un matériau composite modelable de ce type, ainsi que son utilisation pour réaliser des corps moulés, par exemple des matériaux d'emballage tels que des films, des bouteilles, des gobelets, des boîtes et analogues.
Beck Michael
Ritter Wolfgang
Schaefer Martin
Borden Ladner Gervais Llp
Ritter Wolfgang
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