Roquette Freres

Other

Anne Lambin

Patrick M Fuertes

Herve Wyart

Hervé Wyart

Jean-Louis Dreux

Maxime Ingret

The present invention relates to the use of a packaging material based on a thermoplastic polymer for packaging a dianhydrohexitol, the packaging material comprising at least one thermoplastic polymer layer containing at least 0.1% by weight of at least one antioxidant (layer (A)), said layer (A) either being directly in contact with the dianhydrohexitol or being separated from the latter by a thermoplastic polymer layer (layer (B)) having a thickness at most equal to 150 &#x3bc;m, and the thermoplastic polymer of the layer (A) and/or of the layer (B) being chosen independently from polyethylene, polypropylene, ethylene/polypropylene copolymers and blends of the latter.

Use of a material based on a thermoplastic polymer having a high content of antioxidants for packaging dianhydrohexitols

The subject of the invention is a process for modifying amylaceous (starchy) materials comprising a stage of chemical fluidification and a stage of stabilization, simultaneous or not simultaneous, these two stages being performed in the dry phase and by the use of a plycarboxylic organic acid. The acid can be chosen particularly from among citric acid, adipic acid, azelaic acid and their mixtures. The process is advantageously performed at a temperature between 90&deg; C. and 170&deg; C., at a pH below 4 and during a total period between 3 minutes and 8 hours. The starchy material subjected to fluidification and stabilization can be cationic.

Process for modifying starchy materials in the dry phase

Process for the conversion of starchy substances in the dry phase

A chemical fluidification process for a starchy material, which is carried out in a reactor suitable for continuous operation and with a humidity of the reaction mix (starch included) of less thank 25%, which consists in subjecting a starchy material to the hydrolyzing action of a chemical agent. The dwell time of the starchy material in the fluidification reactor is more than 5 minutes and less than 30 minutes. The temperature at the core of said reactor is more than 60&deg; C. and less than 100&deg; C. approximately, a conversion process comprising said chemical fluidification, and starchy materials obtainable by such processes.

Chemical fluidification process and conversion process of starchy materials, and new cationic starchy materials

Growing community of inventors

Lomme, France

Anne Lambin