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US 11,951,226 B2Granted
Ethylene oxide sterilization sensor including acid-functional sorbent and method of use
Assignee3M Innovative Properties Company
InventorsMichael W. Kobe, Michael S. Wendland, Kelvin J. Witcher, Richard C. Webb
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Abstract
An ethylene oxide sterilization sensor, and method of use, wherein the sensor includes: a heat-shrinkable film; an acid-functional porous sorbent in thermal contact with the heat-shrinkable film; and an acid having a boiling point above 120° C. and a pKa of no greater than 2.5, wherein the acid is impregnated in or covalently attached to the porous sorbent.
Claims12
An ethylene oxide sterilization sensor comprising:
- a heat-shrinkable film;
- an acid-functional porous sorbent in thermal contact with the heat-shrinkable film;
- and
- an acid having a boiling point above 120° C. and a pKa of no greater than 2.5, wherein the acid is impregnated in or covalently attached to the porous sorbent.
1 more element
Dependencies are inferred from the claim text.