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US 5,904,739 AGranted
Storage-stable liquid brightener formulations
AssigneeHoechst Aktiengesellschaft
InventorsThomas Martini, Petra Rothe
Life of this patent
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Abstract
Storage-stable liquid brightener formulations essentially comprise a basic optical brightener, an aprotic polar organic solvent and an acid.
Claims7
A storage-stable liquid brightener formulation comprising a basic optical brightener, an aprotic polar organic solvent and an acid wherein said formulation is non-aqueous.
Dependencies are inferred from the claim text.