IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0423838
(2003-04-25)
|
발명자
/ 주소 |
- Hoffman,Wayne L.
- Eby,Eric
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출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
125 |
초록
▼
The invention provides low solar reflectance, low-emissivity coatings. The invention provides a monolithic pane bearing a low solar reflectance, low-emissivity coating. Further, the invention provides an insulating glass unit bearing a low solar reflectance, low-emissivity coating. Finally, the inv
The invention provides low solar reflectance, low-emissivity coatings. The invention provides a monolithic pane bearing a low solar reflectance, low-emissivity coating. Further, the invention provides an insulating glass unit bearing a low solar reflectance, low-emissivity coating. Finally, the invention provides methods of producing coated substrates by depositing low solar reflectance, low-emissivity coatings.
대표청구항
▼
What is claimed is: 1. A pane bearing a low-emissivity coating comprising, in sequence outwardly from the pane, an inner coat, a high absorption primary layer, a middle coat, an infrared-reflective layer, and an outer coat, the inner coat comprising at least one transparent dielectric film and bein
What is claimed is: 1. A pane bearing a low-emissivity coating comprising, in sequence outwardly from the pane, an inner coat, a high absorption primary layer, a middle coat, an infrared-reflective layer, and an outer coat, the inner coat comprising at least one transparent dielectric film and being applied directly on the pane and having an optical thickness of less than about 272Å, the middle coat comprising at least one transparent dielectric film and having an optical thickness of between about 600 Å and about 872 Å, said infrared-reflective layer comprising material that is highly reflective of infrared radiation and having a thickness of at least about 175 Å, the high absorption primary layer comprising material that is highly absorptive of solar radiation and having a thickness of at least about 100 Å, wherein a major portion of the thickness of the high absorption primary layer is metallic titanium. 2. The pane of claim 1 wherein said infrared-reflective layer comprises silver. 3. The pane of claim 1 wherein the low-emissivity coating includes a high absorption blocker layer directly over said infrared-reflective layer, the high absorption blocker layer having a thickness of between about 46 Å and about 78 Å. 4. The pane of claim 1 wherein the high absorption primary layer has a thickness of between about 110 Å and about 144 Å. 5. The pane of claim 1 wherein each film of the middle coat has a refractive index of between about 1.7 and about 2.4. 6. The pane of claim 1 further comprising a high absorption blocker layer deposited over said infrared-reflective layer, the high absorption blocker layer comprising material that is highly absorptive of solar radiation and having a thickness of at least about 45 Å, wherein the high absorption blocker layer comprises titanium. 7. The pane of claim 6 wherein the high absorption blocker layer is deposited directly over said infrared-reflective layer. 8. The pane of claim 6 wherein a major portion of the thickness of the high absorption blocker layer is metallic titanium. 9. The pane of claim 6 wherein the high absorption blocker layer comprises an outer portion that is titanium oxide. 10. The pane of claim 6 wherein the thickness of the high absorption blocker layer is between about 54 Å and about 68 Å. 11. The pane of claim 1 wherein each film of the inner coat has a refractive index of between about 1.7 and about 2.4. 12. The pane of claim 1 wherein the outer coat comprises a layer of zinc oxide and a layer of silicon nitride over said layer of zinc oxide. 13. The pane of claim 12 wherein each film in the outer coat has a refractive index of between about 1.7 and about 2.4. 14. The pane of claim 1 wherein the pane is part of an insulating glass unit and the low-emissivity coating is carried on a #2 surface of the insulating glass unit. 15. The pane of claim 14 wherein the insulating glass unit has an exterior solar reflectance of less than about 30%. 16. The pane of claim 15 wherein the exterior solar reflectance is less than about 20%. 17. The pane of claim 16 wherein the exterior solar reflectance is about 16%. 18. The pane of claim 1 wherein the low-emissivity coating has an emissivity of less than about 0.07. 19. The pane of claim 18 wherein the emissivity is less than about 0.05. 20. The pane of claim 19 wherein the emissivity is about 0. 044. 21. The pane of claim 14 wherein the insulating glass unit has an exterior visible reflectance of less than about 20%. 22. The pane of claim 21 wherein the exterior visible reflectance is less than about 15%. 23. The pane of claim 22 wherein the exterior visible reflectance is about 11%. 24. The pane of claim 14 wherein the insulating glass unit has a U Value of less than about 0.4. 25. The pane of claim 24 wherein the U Value is less than about 0.3. 26. The pane of claim 14 wherein the insulating glass unit has a solar heat gain coefficient of less than about 0.4. 27. The pane of claim 14 wherein the insulating glass unit has a transmitted color characterized by an ah color coordinate of between about-1.75 and about-4.5 and a bh color coordinate of between about-2 and about-5. 28. The pane of claim 14 wherein the insulating glass unit has an exterior reflected color characterized by an ah color coordinate of between about 1.4 and about-1.6 and a bh color coordinate of between about 0.5 and about-2.5. 29. A pane bearing a low-emissivity coating comprising the following sequence of films: a) an inner, applied directly to the pane, coat comprising at least one transparent dielectric film and having an optical thickness of less than about 272Å; b) a high absorption primary layer comprising material that is highly absorptive of solar radiation and having a thickness of least about 100 Å, wherein a major portion of the thickness of the high absorption primary layer is metallic titanium; c) a middle coat comprising at least one transparent dielectric film and having an optical thickness of between about 600 Å and about 872 Å; d) an infrared-reflective layer comprising material that is highly reflective of infrared radiation and having a thickness of at least about 175 Å; e) a high absorption blocker layer comprising material that is highly absorptive of solar radiation and having a thickness of at least about 45 Å; and f) an outer coat comprising a layer of zinc oxide and a layer of silicon nitride over said layer of zinc oxide. 30. A pane bearing a low-emissivity coating comprising an infrared-reflective layer, a high absorption primary layer, an inner coat, and a middle coat, the inner coat comprising at least one transparent dielectric film and being deposited directly on the pane, wherein each film of the inner coat has a refractive index of between about 1.7 and about 2.4, said infrared-reflective layer comprising silver and having a thickness of at least about 175 Å, the high absorption primary layer comprising material that is highly absorptive of solar radiation and having a thickness of at least about 100 Å, wherein a major portion of the thickness of the high absorption primary layer is metallic titanium, the middle coat comprising at least one transparent dielectric film and being positioned between said infrared-reflective layer and the high absorption primary layer, wherein the low-emissivity coating includes a high absorption blocker layer directly over said infrared-reflective layer, the high absorption blocker layer having a thickness of at least about 45 Å, wherein the pane is part of an insulating glass unit and the low-emissivity coating is carried on a #2 surface of the insulating glass unit, the insulating glass unit having an exterior solar reflectance of less than about 20% and having a transmitted color characterized by an ah color coordinate and a bh color coordinate, both of said color coordinates being negative such that the insulating glass unit has a transmitted hue within a range that is entirely within a blue-green range. 31. The pane of claim 26 wherein the insulating glass unit has a solar heat gain coefficient of less than about 0.2. 32. The pane of claim 31 wherein the insulating glass unit has a solar heat gain coefficient of about 0.16. 33. The pane of claim 1 wherein the outer coat comprises at least one transparent dielectric film and has an optical thickness, the coating having a ratio defined as the optical thickness of the outer coat divided by the optical thickness of the middle coat, said ratio being between about 0.52 and about 0.88. 34. The pane of claim 29 wherein the outer coat has an optical thickness, the coating has a ratio defined as the optical thickness of the outer coat divided by the optical thickness of the middle coat, and said ratio is between about 0.52 and about 0.88. 35. The pane of claim 30 wherein the insulating glass unit has a solar heat gain coefficient of less than about 0.2.
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