Architectural coating with interference colors

• US 4,902,581 A
• Filed: 12/17/1984
• Issued: 02/20/1990
• Est. Priority Date: 12/17/1984
• Status: Expired due to Term

• Current Assignee: PPG Industries Incorporated Corporation of PA
• Original Assignee: PPG Industries Incorporated (Nouryon BV)
• Inventors: Criss, Russell C.
• Primary Examiner(s): Schwartz, Pamela R.
• Application Number:
  US06/682,136
• Time in Patent Office: 1,891 Days
• Field of Search: 428/432, 428/699, 428/701, 428/702, 428/412, 428/457, 428/627, 428/469, 428/632, 428/633, 428/685, 428/672, 428/673, 428/677, 428/653, 204/192.27
• US Class Current: 428/627
• CPC Class Codes: C03C 17/36 at least one coating being a metal
• CPC Class Codes: C03C 17/3607 Coatings of the type glass/inorganic compound/metal
• CPC Class Codes: C03C 17/3613 Coatings of type glass/inorganic compound/metal/inorganic compound/metal/other
• CPC Class Codes: C03C 17/3626 one layer at least containing a nitride, oxynitride, boronitride or carbonitride
• CPC Class Codes: C03C 17/3642 the multilayer coating containing a metal layer
• CPC Class Codes: C03C 17/3652 the coating stack containing at least one sacrificial layer to protect the metal from oxidation
• CPC Class Codes: C03C 17/366 Low-emissivity or solar control coatings
• CPC Class Codes: C03C 17/3681 the multilayer coating being used in glazing, e.g. windows or windscreens
• CPC Class Codes: C23C 14/0015 characterized by the colour of the layer
• CPC Class Codes: C23C 14/085 of iron group metals
• CPC Class Codes: C23C 14/087 of copper or solid solutions thereof
• CPC Class Codes: C23C 14/18 on other inorganic substrates
• CPC Class Codes: F24S 50/80 for controlling collection or absorption of solar radiation
• CPC Class Codes: Y02B 10/20 Solar thermal
• CPC Class Codes: Y02E 10/40 Solar thermal energy, e.g. solar towers
• CPC Class Codes: Y10T 428/12576 Boride, carbide or nitride component
• CPC Class Codes: Y10T 428/12611 Oxide-containing component
• CPC Class Codes: Y10T 428/12618 Plural oxides
• CPC Class Codes: Y10T 428/31507 Of polycarbonate

Abstract

A transparent article for reflecting solar energy comprising a metal oxide film which exhibits color by absorption and interference effects and a highly reflective metal film is disclosed along with a sputtering method for its production.

Claims

1. An article of manufacture for the reflectance of solar energy comprising:

a. a transparent substrate;

b. a transparent colored metal compound film which exhibits color by absorption and interference effects deposited on a surface of said substrate; and

c. a highly infrared reflective transparent metallic film deposited on said metal compound film.

2. An article of manufacture according to claim 1, wherein the substrate is glass.

3. An article of manufacture according to claim 2, wherein the reflective metallic film comprises a metal selected from the group consisting of silver, gold, copper, aluminum and mixtures thereof.

4. An article of manufacture according to claim 3, wherein the metal is silver and which further comprises a transparent protective film deposited on the silver film.

5. An article according to claim 4, wherein the metal compound is selected from the group consisting of the oxides and nitrides of stainless steel, nickel alloys, copper, iron, cobalt and mixtures thereof.

6. An article according to claim 5, wherein the metal compound film comprises stainless steel oxide.

7. An article according to claim 6, wherein the transparent protective layer comprises stainless steel.

8. An article according to claim 7, wherein the stainless steel comprises about 68 percent iron, 17 percent chromium, 12 percent nickel and 2.25 percent molybdenum.

9. An article according to claim 7, wherein said article exhibits a gold color in reflectance from the glass surface.

10. An article according to claim 1, wherein said transparent metal compound and reflective metal films are sputtered films.