Chemically sensitive, dimensionally-stable organosilicon material composition
AssigneeHewlett-Packard Company
InventorsGanapati Mauze, Robert R. Holloway, Darlene J. Spira-Solomon
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Abstract
A dimensionally-stable organosilicon material composition and method for producing the material composition including noncrosslinkable, continuous phase silicone with silica filler material dispersed therethorugh, and having dissolved therein a variably-radiative material (e.g., ruthenium dye) responsive to the concentration of a selected analyte (e.g., oxygen), and the products of a reaction between water and a modifier material selected for establishing the sensitivity of said variably-radiative material to the selected analyte.
Claims19
An analyte-concentration-responsive, dimensionally stable material composition comprising:
- a predetermined amount of continuous phase silicone;
- filler material dispersed in said silicone for strengthening said silicone so that it has a desired level of dimensional stability;
- a selected amount of radiative material being dispersed within said silicone and having a radiativity which varies in accordance with concentrations of a selected analyte;
- and
- a modifier material in said material composition for establishing a prescribed range of radiativity of said radiative material;
- said silicone being non-reactive to and not cross-linked with the modifier material;
- and said modifier material being a substance which will react and cross-link with certain silicones other than said silicone.
A dimensionally stable material composition, suitable for use in determining ambient concentrations of a selected analyte, comprising:
- continuous phase silicone;
- silica material distributed in said continuous phase silicone in an amount sufficient to establish a desired level of dimensional stability for said material composition;
- radiative material having a level of affinity for said silica material and including a radiativity which varies in accordance with concentrations of a selected analyte;
- and
- modifier material for producing products of a chemical reaction when mixed with a solvent, at least one of the products of the chemical reaction being effective for establishing a desired range of radiativity for said radiative material by affecting the affinity of said radiative material to said silica material.
A dimensionally stable material composition suitable for use in determining oxygen concentrations, said material composition comprising:
- continuous phase silicone;
- silica material in an amount sufficient to establish a desired level of dimensional stability for a said continuous phase silicone;
- luminescent material having a radiativity which varies in accordance with changes in concentration of oxygen;
- and
- modifier material for producing acetic acid when said material composition is under suitable conditions of ambient humidity, said acetic acid being effective for modifying the radiativity of said luminescent material in accordance with the amount of acetic acid produced, and said continuous phase silicone including exclusively functional groups which are inert with respect to said acetic acid.
Dependencies are inferred from the claim text.