Bronze-grey glazing film and window made therefrom

• US 4,861,680 A
• Filed: 02/11/1988
• Issued: 08/29/1989
• Est. Priority Date: 02/11/1988
• Status: Expired due to Fees

• Current Assignee: Southwall Technologies, Inc. (Eastman Chemical Company)
• Original Assignee: Southwall Technologies, Inc. (Eastman Chemical Company)
• Inventors: Sans, Claude A., Meyer, Stephen F.
• Primary Examiner(s): Rutledge, L. Dewayne
• Assistant Examiner(s): WYSZOMIERSKI, GEORGE P
• Application Number:
  US07/155,068
• Time in Patent Office: 565 Days
• Field of Search: 428/622, 428/623, 428/632, 428/660, 428/674, 428/675, 428/677, 428/630, 428/34
• US Class Current: 428/623
• CPC Class Codes: B32B 17/10174 Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
• CPC Class Codes: B32B 17/10339 Specific parts of the laminated safety glass or glazing being colored or tinted tinted glass sheet B32B17/1011; tinted interlayer B32B17/10651
• CPC Class Codes: C23C 14/0015 characterized by the colour of the layer
• CPC Class Codes: C23C 14/083 of refractory metals or yttrium
• CPC Class Codes: C23C 14/20 on organic substrates
• CPC Class Codes: E06B 3/6715 specially adapted for increased thermal insulation or for controlled passage of light E06B3/66323 takes precedence; coating of glass pains C03C17/00; devices or arrangements for controlling the intensity, colour, phase, polarisation or direction of light G02F1/00
• CPC Class Codes: Y10T 428/12549 Adjacent to each other
• CPC Class Codes: Y10T 428/12597 Noncrystalline silica or noncrystalline plural-oxide component [e.g., glass, etc.]
• CPC Class Codes: Y10T 428/12611 Oxide-containing component
• CPC Class Codes: Y10T 428/12903 Cu-base component
• CPC Class Codes: Y10T 428/1291 Next to Co-, Cu-, or Ni-base component
• CPC Class Codes: Y10T 428/12924 Fe-base has 0.01-1.7% carbon [i.e., steel]

Abstract

Bronze-grey films for window glazing structures are disclosed. The subject bronze-grey films are characterized by having a layer of reactive-sputtered titanium suboxide of controlled composition between the bronze-grey metal layer and the plastic sheet which makes up the substrate of the film. The process by which these films can be made is also disclosed. These films offer superior resistance to failure by delamination.

Claims

1. A bronze-grey film glazing component comprising

a. a plastic film support;

b. a 25 to 100 angstrom layer of titanium suboxide reactive sputter-deposited to a composition of TiO_x, wherein the value of x is between about 0.8 and about 1.95, said layer being adhered to the surface of the support;

c. a transmissive layer of copper metal adhered to the titanium suboxide layer; and

d. a transmissive layer of greying metal adhered to the layer of copper.

2. The bronze-grey film glazing component of claim 1 additionally comprising

e. a 25 to 100 angstrom layer of titanium suboxide reactive sputter-deposited to a composition of TiO_x, wherein the value of x is between about 0.8 and about 1.95, said layer being adhered to the surface of the greying metal layer.

3. The bronze-grey film of claim 2 wherein the plastic film support is a poly(ester) film.

4. The bronze-grey film of claim 2 wherein the plastic film support is a poly (ethylene terphthalate) film.

5. The bronze-grey film of claim 4 additionally characterized by having a transmission value at 500 nm of from 50 to 85 percent for the poly(ethylene terphthalate) plus two layers of titanium suboxide.

6. The bronze-grey film of claim 5 wherein the poly(ethylene terphthalate) is a glow discharge-treated poly(ethylene terphthalate).

7. The bronze-grey film of claim 6 wherein x in layers b and e has a value of from about 1 to about 1.9.

8. The bronze-grey film of claim 7 where x in layers b and e has a value of about 1.8.

9. A window glazing structure comprising a glass pane having a bronze-grey film of claim 7 adhered to one of its surfaces.

10. A multi-pane glazing structure comprising two parallel glass panes spaced apart from one another and defining an air space between them and a bronze-grey film of claim 7 suspended in said air space parallel to the glass panes.