Anhydrous complexes of PVP and hydrogen peroxide
AssigneeGAF Chemicals Corporation
InventorJohn J. Merianos
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Abstract
What is provided herein are substantially anhydrous complexes of PVP and H.sub.2 O.sub.2 in molar ratios of between about 2:1 and 1:1, respectively, which corresponds to between about 13% and about 23% by weight H.sub.2 O.sub.2. The complexes of the invention are prepared by an anhydrous process whereby substantially uniform, free-flowing, fine white powders are obtained.
Claims14
A high purity product which is stable complex of PVP and H.sub.2 O.sub.2 in a molar ratio of between about 2:1 and about 1:1, respectively, and which is obtained directly as a uniform, free-flowing, fine, white powder with essentially little or no water or free hydrogen peroxide contained therein by reaction in a substantially anhydrous solvent between PVP and H.sub.2 O.sub.2 in substantially the molar ratio predetermined for the complex and removing the solvent therefrom.
An anhydrous process of preparing a substantially anhydrous complex of PVP and H.sub.2 O.sub.2 which is a uniform, fine white powder comprising reacting PVP and H.sub.2 O.sub.2 in an anhydrous organic solvent.
Dependencies are inferred from the claim text.