Process for preparing water-insoluble PVP-iodine product

Details Process for preparing water-insoluble PVP-iodine product Process for preparing water-insoluble PVP-iodine product

1991-10-08

1992-10-06

Page, T. K.

Drug, bio-affecting and body treating compositions

Solid synthetic organic polymer as designated organic active...

Aftertreated polymer

424 7825, 424484, 424486, C08C 1912, C08F 2610

Patent

active

051529874

ABSTRACT:
A process for preparing a water-insoluble PVP-iodine product which comprises intimately mixing water-insoluble PVP, about 10 to 20% by weight of iodine powder and about 0.05 to 1% by weight of isopropanol, heating the reaction mixture at a mixing temperature of about 30.degree.-60.degree. C. for about 0.5 to 6 hours, and heating the mixture at a reaction temperature of about 75.degree. to 98.degree. C. for about 10-24 hours, thereupon forming a stable, uniform, free-flowing powder having an available iodine content of about 9-13% and an iodide content of about 4-6%.

REFERENCES:
patent: 2706701 (1955-04-01), Beller et al.
patent: 4094967 (1978-06-01), Gilbert
patent: 4113857 (1978-09-01), Shetty
patent: 4214059 (1980-07-01), Hofer

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