(C)CRYSTAL COMPOSITION (CC) COMPRISING 4,4'-DICHLORODIPHENYLSULFONE CRYSTALS (C)

The invention relates to crystals (C) consisting of at least 98 % by weight of 4,4'- dichlorodiphenylsulfone, 0 to 2 % by weight of impurities and 0 to 2 % by weight of at least one solvent (c). Moreover, the present invention relates to a crystal composition (CC) comprising crystals (C) and a...

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Bibliographic Details
Main Authors BLEI, Stefan, SCHUETZ, Christian, GAO, Jun, HAMANN, Jessica Nadine, THIEL, Indre, THRUN, Frauke
Format Patent
LanguageEnglish
French
Published 04.03.2021
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention relates to crystals (C) consisting of at least 98 % by weight of 4,4'- dichlorodiphenylsulfone, 0 to 2 % by weight of impurities and 0 to 2 % by weight of at least one solvent (c). Moreover, the present invention relates to a crystal composition (CC) comprising crystals (C) and a process for the production of the crystal composition (CC) and the crystals (C). L'invention concerne des cristaux (C) composés d'au moins 98 % en poids de 4,4'-dichlorodiphénylsulfone, de 0 à 2 % en poids d'impuretés et de 0 à 2 % en poids d'au moins un solvant (c). De plus, la présente invention concerne une composition de cristaux (CC) comprenant des cristaux (C) et un procédé de production de la composition de cristaux (CC) et des cristaux (C).
Bibliography:Application Number: WO2020EP73630