Copolymers of vinyl pyrrolidone and a quaternary ammonium monome

Details Copolymers of vinyl pyrrolidone and a quaternary ammonium monome Copolymers of vinyl pyrrolidone and a quaternary ammonium monome

1992-01-13

1993-03-02

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Solid synthetic organic polymer as designated organic active...

Aftertreated polymer

424616, 5147725, A61K 3179, A61K 31785

Patent

active

051907496

ABSTRACT:
Copolymers of vinyl pyrrolidone and a quaternary ammonium monomer complexed with H.sub.2 O.sub.2 in the form of free-flowing powders is described. The products are made in a fluidized bed of said copolymer maintained at a reaction temperature of from room temperature to about 60.degree. C. The fluidized bed is contacted with finely divided droplets of a 30 to 85% by weight aqueous H.sub.2 O.sub.2 solution at a feed rate of about 1-10 g/minute/kg copolymer present. The copolymer-H.sub.2 O.sub.2 product preferably contains about 10-20% H.sub.2 O.sub.2 (1:1 molar ratio), and less than about 5% water. The product can be used as a hair bleach enhancer which provides dual hair conditioning properties.

REFERENCES:
patent: 3376110 (1968-04-01), Shiraeff
patent: 4801460 (1989-01-01), Goertz et al.
patent: 5008093 (1991-04-01), Merianos
patent: 5066488 (1991-11-01), Merianos et al.
patent: 5077047 (1991-12-01), Biss et al.

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