Reduced solar absorptivity applique

• US 8,733,702 B1
• Filed: 12/02/2009
• Issued: 05/27/2014
• Est. Priority Date: 12/02/2009
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Rawlings, Diane C., Roe, George M., Keller, Peter C.
• Primary Examiner(s): Ellis, Christopher P
• Assistant Examiner(s): Badawi, Medhat
• Application Number:
  US12/629,803
• Time in Patent Office: 1,637 Days
• Field of Search: 244/130, 244/200, 244/200.1, 244/133
• US Class Current: 244/133
• CPC Class Codes: B64C 21/10 using other surface properties, e.g. roughness
• CPC Class Codes: B64C 2230/26 by using rib lets or hydrophobic surfaces
• CPC Class Codes: B64C 23/005 by other means not covered by groups B64C23/02 - B64C23/08, e.g. by electric charges, magnetic panels, piezoelectric elements, static charges or ultrasounds
• CPC Class Codes: B64D 45/02 Lightning protectors; Static dischargers in general H01T
• CPC Class Codes: Y02B 10/30 Wind power
• CPC Class Codes: Y02T 50/10 Drag reduction
• CPC Class Codes: Y10T 428/24479 including variation in thickness
• CPC Class Codes: Y10T 428/24579 with particulate matter

Abstract

A reduced solar aborptivity appliqué having a surface layer for adhering to an surface and high aspect ratio microstructures extending from the surface layer having pigmentation or spectral tailoring.

Claims

1. A reduced solar absorptivity appliqué

comprising;

a surface layer for adhering to a surface and having bright white coloration;

a plurality of high aspect ratio microstructures extending from the surface layer with spectral tailoring present solely in the microstructures.

2. The reduced solar absorptivity appliqué

as defined in claim 1 wherein the spectral tailoring comprises decorative coloration.

3. The reduced solar absorptivity appliqué

as defined in claim 1 wherein the spectral tailoring of the microstructures absorbs selected wavelengths of visible radiation and reflects radiation in UV and near IR wavelengths.

4. The reduced solar absorptivity appliqué

as defined in claim 1 further comprising a cladding on the microstructures.

5. The reduced solar absorptivity appliqué

as defined in claim 4 wherein the cladding is selected from the set of organic or inorganic additives/fillers including inks and dip coating solutions, single and multilayered coatings applied by surface modification, sputtering, physical deposition including vapor deposition, plasma deposition and chemical vapor depositions wherein said materials deposited include metals such as aluminum, gold, indium, tin and chromium, oxides of metals, and organics/polymers including perylenes, porphyrins, phthalocyanines, fluoropolymers or organometallics, electrodeposited materials including metals and metal oxides or conductive polymers, coatings deposited by electrophoresis in single or multilayers including nanolayered metals, polymers and oxides.

6. The reduced solar absorptivity appliqué

as defined in claim 1 further comprising a polymer support layer deposited on the surface layer opposite the microstructures.

7. The reduced solar absorptivity appliqué

as defined in claim 6 further comprising an adhesive layer deposited on the polymer support layer to form a multilayer appliqué

, said adhesive layer adhering the appliqué

to a surface.

8. The reduced solar absorptivity appliqué

as defined in claim 2 wherein the microstructures and the surface layer comprise a high elongation elastomer and further comprising a spectral tailoring cladding on the microstructures.

9. The reduced solar absorptivity appliqué

as defined in claim 1 wherein the microstructures are formed from material selected from the set of high elongation elastomers, metals, metal alloys selected from the set of crystalline or amorphous glass alloys, ceramics selected from the set of crystalline ceramics including Silicon Carbide or Silicon Nitride or amorphous ceramics including borosilicate glass.

10. The reduced solar absorptivity appliqué

as defined in claim 1 further comprising a metallic layer, a polymer support layer and an adhesive layer applied to the surface layer opposite the microstructures.

11. The reduced solar absorptivity appliqué

as defined in claim 1 wherein the microstructures are loaded with pigmentation.

12. The reduced solar absorptivity appliqué

as defined in claim 9 wherein the spectral tailoring comprises pigmentation selected from the set of organics including perylene black, perylene reds, blue and green phthalocyanine pigments and stable yellow organics transparent in the near infrared.

13. The reduced solar absorptivity appliqué

as defined in claim 1 wherein the spectral tailoring comprises materials incorporated in a material matrix in the microstructures absorbing UV radiation and reemitting at a different wavelength in a visible spectrum.

14. The reduced solar absorptivity appliqué

as defined in claim 1 wherein the spectral tailoring comprises materials incorporated in a material matrix in the microstructures absorbing UV radiation and reemitting at a different wavelength in a near IR spectrum.

15. The reduced solar absorptivity appliqué

as defined in claim 13 wherein the materials incorporated in the material matrix in the microstructure are selected from the set of fluorescent molecules, flourescent pigments and phosphorescent molecules.

16. The reduced solar absorptivity appliqué

as defined in claim 13 wherein the materials incorporated in the material matrix in the microstructure are quantum dots.

17. The reduced solar absorptivity appliqué

as defined in claim 4 wherein the spectral tailoring comprises materials incorporated in the cladding absorbing UV radiation and reemitting at a different wavelength in a near IR spectrum.

18. The reduced solar absorptivity appliqué

as defined in claim 17 wherein the cladding comprises quantum dots.