Hypericin-pvp complex with high hypericin content
AssigneeHypericum Lifescience GmbH
InventorAndreas KUBIN
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Abstract
The invention relates to a complex that consists of hypericin or a hypericin salt and polyvinyl pyrrolidone (PVP), the average mass fraction of hypericin or hypericin salt in the entire complex being higher than 6% by weight. The invention further relates to a process for preparing said hypericin-PVP complex, according to which process a mixture of hypericin and PVP is heated to a temperature above the glass transition temperature of the PVP used.
Claims10
A complex formed from hypericin or a hypericin salt and polyvinylpyrrolidone (PVP), characterized in that the mean proportion by weight of hypericin or of hypericin salt with respect to the total complex is more than 6% by weight.
Dependencies are inferred from the claim text.