Process for producing compositions rich in crystals of mannitol in delta form, compositions and crystals obtained and uses thereof
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United States of America Patent
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May 24, 2016
Grant Date -
Aug 6, 2015
app pub date -
Aug 7, 2013
filing date -
Aug 17, 2012
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Abstract
A process for producing a composition which is particularly rich in D-mannitol, the latter being present in the form of crystals having a volume average diameter greater than 20 pm, wherein the crystals correspond to a very large extent to the δ polymorph. This process makes use of the evaporative crystallization technique, in which the seeding and then the controlled growth of the crystals is carried out at different evaporation rates. Finally, very pure δ crystals are advantageously obtained, which have a better compressibility than the α and β homologues thereof and which, by virtue of the sizes thereof, result in a powder which is not subject to caking.
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