Process for preparing PVP-iodine complex

Details Process for preparing PVP-iodine complex Process for preparing PVP-iodine complex

1977-04-27

1978-12-05

Meyers, Albert T.

Drug, bio-affecting and body treating compositions

Lymphokine

424150, A61K 3179, A61K 3318

Patent

active

041286332

ABSTRACT:
In accordance with the present invention, there is provided herein an in situ process for making stable PVP-iodine complex having a high level of iodine power. The process of this invention is carried out by adding a predetermined amount of free water to a PVP suspension, and admixing iodine therewith to form the desired solid complex. The PVP suspension may be obtained by suspension polymerization of N-vinylpyrrolidone (VP) in a suitable solvent, and used directly for succeeding steps of the process.

REFERENCES:
patent: 2739922 (1956-03-01), Shelanski
patent: 2900305 (1959-08-01), Siggia
patent: 3898326 (1975-08-01), Cantor et al.
patent: 4017407 (1977-04-01), Cantor et al.

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