Hydrogen peroxide destroying compositions and methods of making

Details Hydrogen peroxide destroying compositions and methods of making Hydrogen peroxide destroying compositions and methods of making

1991-11-06

1994-05-17

Lovering, Richard D.

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Using disinfecting or sterilizing substance

424 944, 424 941, 424406, 424409, A61L 900

Patent

active

053125886

ABSTRACT:
A composition and methods useful for making such compositions and for using such compositions to destroy hydrogen peroxide in a liquid aqueous medium, such as that used to disinfect contact lenses, are disclosed. The composition comprises a coated core containing at least one hydrogen peroxide destroying component effective when released into a liquid aqueous medium to destroy or cause the destruction of hydrogen peroxide present in the liquid aqueous medium, and a barrier coating acting to substantially prevent the release of the hydrogen peroxide destroying component for a period of time after the composition is initially contacted with a hydrogen peroxide-containing liquid aqueous medium. The barrier coating is substantially water soluble, preferably includes polyvinylpyrrolidone and is applied as a substantially dry, solid material.

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