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

Abstract

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 [mu]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.

Description

technical field

[0001] The present invention relates to the use of a special thermoplastic material comprising a layer with a high content of antioxidants for packaging dianhydrohexitols. Background technique

[0002] Dianhydrohexitol, also known as isohexitol, is a C 6 Product of internal dehydration of hydrogenated sugars (hexitols) such as sorbitol, mannitol and iditol.

[0003] Among these dianhydrohydrogenated sugars, isosorbide is the one for which most industrial applications are developed and envisaged today, especially in the field of pharmaceuticals, in the field of intermediates of chemical synthesis and in the field of plastics.

[0004] For many of these applications it is generally necessary to have a composition that is as pure as possible, in particular with a dianhydrohexitol content at least equal to 98.5% by weight, preferably at least equal to 99.5% by weight.

[0005] The observation that dianhydrohexitols, and in particular isosorbide, are not only hi...