Hydrogen peroxide destroying compositions and methods of...

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

C - Chemistry, Metallurgy

09

K

C09K 15/06 (2006.01) A61L 2/18 (2006.01) A61L 12/12 (2006.01) G02C 13/00 (2006.01)

Patent

CA 2075474

2075474 9112826 PCTABS00007 A composition and method of 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 includes material capable of at least partially dissolving in an aqueous medium having a pH in the range of 5.1 to 6.9 by forming one or more soluble salts of the material.

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