Preparation of polyvinylpyrrolidone-iodine

Details Preparation of polyvinylpyrrolidone-iodine Preparation of polyvinylpyrrolidone-iodine

1979-04-17

1980-04-29

Hamrock, William F.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525358, C08F 822

Patent

active

042007100

ABSTRACT:
A process for the preparation of PVP-iodine by reacting polyvinylpyrrolidone powder with elementary iodine at from 70.degree. to 100.degree. C. The reaction is carried out in the presence of formic acid, oxalic acid or an ammonium salt or amide of carbonic acid, formic acid or oxalic acid. The process avoids the disadvantage of long periods of heating, which can result in degradation of the polyvinylpyrrolidone, and is particularly suitable for the preparation of a stable PVP-iodine using a low molecular weight polyvinylpyrrolidone.

REFERENCES:
patent: 2706701 (1955-04-01), Beller et al.
patent: 2754245 (1956-07-01), Hosmer
patent: 2826532 (1958-03-01), Hosmer
patent: 2900305 (1959-08-01), Siggia
patent: 3028300 (1962-04-01), Canter et al.
patent: 3136755 (1964-06-01), Grosser et al.
patent: 3898326 (1975-08-01), Canter et al.
patent: 4027083 (1977-05-01), Herrle et al.
patent: 4157433 (1979-06-01), Phillips

Affiliated with

Also associated with

Rating

Preparation of polyvinylpyrrolidone-iodine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of polyvinylpyrrolidone-iodine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of polyvinylpyrrolidone-iodine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1684581