Gaf Corporation

Gaf Chemicals Corporation

James R Cho

Eugene S Barabas

Terry E Smith

Ian W Cottrell

Stephen C Johnson

A method for increasing the water-solubility of highly insoluble organic compounds by forming a complex product from the reaction between the organic compound and an aqueous solution of solid polyvinylpyrrolidone. The solubility of the organic compound can be increased at least 25-fold and the complex formed is highly stable at ambient conditions.

Solubilization of complexes of water-insoluble organic compounds by

A method for increasing the water-solubility of highly insoluble organic compounds by forming a novel complex product from the reaction between the organic compound and an oligomer of vinylpyrrolidone. The complex is highly stable and results in solubilities of the organic compounds in excess of 25-fold.

Water-soluble complexes of water-insoluble pharmaceutical compounds and

Vinylpyrrolidone and vinyl acetate monomers are polymerized using free radical initiator consisting of t-Butylperoxypivalate and preferably in solvent consisting essentially of water, isopropyl alcohol, sec. butyl alcohol or mixtures thereof to produce vinyl pyrrolidone/vinyl acetate copolymer.

Method of preparing an aqueous solution comprising

Vinylpyrrolidone is polymerized using free radical initiator consisting essentially of t-Butylperoxypivalate and preferably in solvent consisting essentially of water, isopropyl alcohol, sec. butyl alcohol or mixtures thereof.

Method of preparing aqueous solutions of polyvinyl-pyrrolidone

The polymeric sunscreen agents of the present invention comprise interpolymers of

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Oakland, NJ, United States of America

James R Cho