Shelf life improvement for ethylene oxide sterilant mixes

Details Shelf life improvement for ethylene oxide sterilant mixes Shelf life improvement for ethylene oxide sterilant mixes

1995-10-16

1999-02-23

Fay, Zohreh

Drug, bio-affecting and body treating compositions

Inorganic active ingredient containing

Carbon disulfide, monoxide, or dioxide

514743, 514747, 514757, A61K 3300, A61K 3102

Patent

active

058741135

ABSTRACT:
A method of increasing the shelf life of a sterilant mixture of ethylene oxide and one or more halocarbons when the mixture is in contact with iron oxide on the surface of a storage vessel. Sufficient carbon dioxide is added to the mixture to reduce the reactivity of the iron oxide for converting ethylene oxide to reaction products of ethylene oxide. In an alternate embodiment, a hollow carbon steel vessel which holds a mixture of ethylene oxide and a halocarbon as a sterilizing gas has its inside surface passivated by forming a reaction product of iron oxide and carbon dioxide.

REFERENCES:
patent: 3068064 (1962-12-01), McDonald
patent: 3372980 (1968-03-01), Satas
patent: 5039485 (1991-08-01), Conviser et al.
patent: 5342579 (1994-08-01), Conviser et al.
patent: 5376333 (1994-12-01), Shanklant et al.
Conviser, Stephen A., "Hospital Sterilization Using Ethylene Oxide--What's Next?" Journal of Healthcare Materiel Management, Jul. 1989 (Reprint).
0 566 892 A2 English Abstract.

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