IP Library › Granted Patent US 7,163,749
Granted Patent B2
US 7,163,749 · App. 10/248,150 · Granted Jan 16, 2007

Process for depositing finely dispersed organic-inorganic films and articles made therefrom

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Quick Facts
Patent No.
US 7,163,749
App. No.
10/248,150
Granted
Jan 16, 2007
Kind
B2
Abstract

A single hybrid organic-inorganic film. The film includes both an organic component, and an inorganic component. The organic component and inorganic component are well interspersed within the film. The film may be incorporated into a multilayer structure including a substrate. A method of forming a hybrid organic-inorganic film. The method includes generating a plasma stream with an expanding thermal plasma generator. The method also includes providing a first reactant and at least one second reactant into the plasma stream extending to a substrate, and forming the hybrid organic-inorganic film on the substrate.

Claims (16)

1. A hybrid organic-inorganic film comprising an organic component and an inorganic component, the film formed by the process of:

generating a plasma stream with an expanding thermal plasma generator;

providing a first reactant comprising TiCl 4 and at least one second reactant comprising water vapor and octamethylcyclotetrasiloxane (D4) into the plasma stream extending to a substrate;

forming the hybrid organic-inorganic film on the substrate.

2. The hybrid organic-inorganic film of claim 1 , wherein the plasma comprises an Ar plasma.

3. The hybrid organic-inorganic film of claim 1 , wherein the process further comprises:

supplying the first reactant into the plasma at a rate of between 0.1 and 10 lpm, and the at least one second reactant into the plasma at a rate of 0.1 to 1 lpm.

4. The hybrid organic-inorganic film of claim 3 , wherein the process further comprises:

supplying the first reactant into the plasma at a rate of between 0.2 and 2 lpm, and the at least one second reactant into the plasma at a rate of 0.01 to 0.2 lpm.

5. The hybrid organic-inorganic film of claim 1 , wherein the film comprises between 10% and 90% organic component by volume.

6. The hybrid organic-inorganic film of claim 1 , wherein the organic component comprises an abrasion resistant material and the inorganic component comprises an ultraviolet (UV) filter material.

7. The hybrid organic-inorganic film of claim 1 , wherein a first property is associated with the organic component and a second property is associated with the inorganic component, and one of the first and second properties remains substantially constant over a range of volume percents of respective organic and inorganic components.

8. The hybrid organic-inorganic film of claim 7 , wherein the second property is UV absorbency and the UV absorbency remains substantially constant over the range of volume percents of the inorganic component.

9. The hybrid organic-inorganic film of claim 1 , wherein a first property is associated with the organic component and a second property is associated with the inorganic component, and one of the first and second properties changes linearly with the volume percent of the respective organic and inorganic components over a range of volume percents.

10. The hybrid organic-inorganic film of claim 9 , wherein the first property is refractive index (RI) and the RI changes linearly with the volume percent of the inorganic component over the range of volume percents.

11. The hybrid organic-inorganic film of claim 9 , wherein the first property is a stress of the film and the stress changes linearly with the volume percent of the inorganic component over the range of volume percents.