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US 6,673,856 B1Granted
Alditol acetal composition and its use in plastic and gelled materials
AssigneeRoquette Freres
InventorLéon Mentink
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AssigneeRoquette Freres
InventorLéon Mentink
Estimating the term…
The present invention relates to improved alditol acetal compositions, in particular 1,3-2,4-di(benzylidene) sorbitol (DBS) or one of its alkylated derivatives. The improvement in these compositions is expressed in particular in terms of flow behavior and/or thermal stability. It is obtained by combining the alditol acetal with an additive selected from tocopherols, polyols and certain of their respective derivatives. These additives may act as binding or densifying agents and/or stabilizing agents or odor maskers. The alditol acetal and additive are advantageously combined by cold mixing, followed by granulation or compaction, also cold. The compositions of the invention, for example based on DBS or the methylated derivatives of DBS, are in the form of densified or compacted powders, granules, pellets, pastilles or extrudates. They are used in particular for preparing plastic or jellified materials or additives for these types of materials.
An alditol acetal composition with improved flow behavior and/or improved stability, including at least one alditol acetal and at least one additive selected from the group consisting of tocopherols and their derivatives and polyols and their non-fatty derivatives, and having an aerated density greater than 250 g/l and of at most 700 g/l.
An alditol acetal composition with improved flow behavior and/or improved stability, containing at least one alditol acetal and at least one additive selected from the group consisting of tocopherols and their derivatives and polyols and their non-fatty derivatives, said alditol acetal and said additive being subjected, in the presence of each other, to a shaping and/or densification process.
Dependencies are inferred from the claim text.