Heat treatable low-E coated articles and methods of making same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-017/06
출원번호
US-0453790
(2003-06-04)
등록번호
US-8173263
(2012-05-08)
발명자
/ 주소
Lingle, Philip J.
Dietrich, Anton
Laird, Ronald E.
Lemmer, Jean-Marc
출원인 / 주소
Guardian Industries Corp.
대리인 / 주소
Nixon & Vanderhye P.C.
인용정보
피인용 횟수 :
36인용 특허 :
58
초록▼
A heat treatable coated article (e.g., vehicle windshield, IG unit, etc.) is provided with a dual-silver low-E coating. Before and/or after heat treatment (HT), the coating and/or coated article has a visible transmittance of at least 70%, more preferably at least 75%. Moreover, the coating and/or c
A heat treatable coated article (e.g., vehicle windshield, IG unit, etc.) is provided with a dual-silver low-E coating. Before and/or after heat treatment (HT), the coating and/or coated article has a visible transmittance of at least 70%, more preferably at least 75%. Moreover, the coating and/or coated article is designed so as to have approximately the same color when viewed over a wide range of viewing angles. In certain embodiments, at least one contact layer (e.g., of or including NiCrOx) that contacts an infrared (IR) reflecting layer (e.g., Ag) is oxidation graded so that it progressively becomes less oxidized through its thickness as it nears the IR reflecting layer. In still other embodiments, a Si-rich silicon nitride layer(s) may be utilized to reduce haze.
대표청구항▼
1. A coated article including a multi-layer coating supported by a glass substrate, the coating comprising from the substrate outwardly at least the following layers: a) a layer comprising zinc oxide;b) a first layer comprising silver;c) a layer comprising metal oxide;d) a layer comprising tin oxide
1. A coated article including a multi-layer coating supported by a glass substrate, the coating comprising from the substrate outwardly at least the following layers: a) a layer comprising zinc oxide;b) a first layer comprising silver;c) a layer comprising metal oxide;d) a layer comprising tin oxide;e) a layer comprising silicon nitride over and in contact with the layer comprising tin oxide,f) a layer comprising metal oxide;g) a second layer comprising silver;h) a layer comprising metal oxide;i) a layer comprising zinc oxide;j) a layer comprising silicon nitride; andwherein the coated article has a visible transmission of at least 70%, a Tsolar no greater than 50%, and sheet resistance (Rs) no greater than 8 ohms/square, andwherein the coated article is heat treated and following heat treatment has a haze value of no greater than 0.40. 2. The coated article of claim 1, wherein the coated article is heat treated and following heat treatment has a haze value of no greater than 0.30. 3. The coated article of claim 1, wherein the coated article is heat treated and following heat treatment has a haze value of no greater than 0.28. 4. A coated article including a multi-layer coating supported by a glass substrate, the coating comprising from the substrate outwardly at least the following layers: a) a layer comprising zinc oxide;b) a first layer comprising silver;c) a layer comprising metal oxide;d) a layer comprising zinc oxide;e) a layer comprising silicon nitride over and in contact with the layer comprising zinc oxidef) a layer comprising metal oxide;g) a second layer comprising silver;h) a layer comprising metal oxide;i) a layer comprising zinc oxide;j) a layer comprising silicon nitride; andwherein the coated article has a visible transmission of at least 70%, a Tsolar no greater than 50% and sheet resistance (Rs) no greater than 8 ohms/square, andwherein the coated article is heat treated and following heat treatment has a haze value of no greater than 0.40. 5. The coated article of claim 4, wherein the coated article is heat treated and following heat treatment has a haze value of no greater than 0.30. 6. The coated article of claim 4, wherein the coated article is heat treated and following heat treatment has a haze value of no greater than 0.28. 7. A coated article including a multi-layer coating supported by a glass substrate, the coating comprising from the substrate outwardly at least the following layers: a) a layer comprising zinc oxide;b) a first layer comprising silver;c) a layer comprising metal oxide;d) a layer comprising tin oxide;e) a layer comprising silicon nitride over and in contact with the layer comprising tin oxide,f) a layer comprising metal oxide;g) a second layer comprising silver;h) a layer comprising metal oxide;i) a layer comprising zinc oxide;j) a layer comprising silicon nitride; andwherein the coated article has a visible transmission of at least 70%, a Tsolar no greater than 50% and sheet resistance (Rs) no greater than 8 ohms/square, andwherein the layer e) comprising silicon nitride is Si-rich in that the layer e) comprises SixNy where x/y is from 0.76 to 1.5. 8. The coated article of claim 7, wherein the layer e) comprising silicon nitride is Si-rich in that the layer e) comprises SixNy where x/y is from 0.85 to 1.2. 9. A coated article including a multi-layer coating supported by a glass substrate, the coating comprising from the substrate outwardly at least the following layers: a) a layer comprising zinc oxide;b) a first layer comprising silver;c) a layer comprising metal oxide;d) a layer comprising zinc oxide;e) a layer comprising silicon nitride over and in contact with the layer comprising zinc oxide,f) a layer comprising metal oxide;g) a second layer comprising silver;h) a layer comprising metal oxide;i) a layer comprising zinc oxide;i) a layer comprising silicon nitride; andwherein the coated article has a visible transmission of at least 70% a Tsolar no greater than 50% and sheet resistance (Rs) no greater than 8 ohms/square, andwherein the layer e) comprising silicon nitride is Si-rich in that the layer e) comprises SixNy where x/y is from 0.76 to 1.5. 10. The coated article of claim 9, wherein the layer e) comprising silicon nitride is Si-rich in that the layer e) comprises SixNy where x/y is from 0.85 to 1.2.
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