Patent EP0482460A2 successfully refreshed from Google Patents.
EP0336257A2
Expired / Lapsed
EP
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Low emissivity film for automotive head load reduction
Assignee: PPG Industries Inc
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Filing: 1989-03-28
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Granted: —
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Expires: 2009-03-28
Abstract
Abstract A multiple-layer, high transmittance, low emissivity coated article is disclosed comprising at least two infrared reflective metal layers alternatingly combined with at least three metal oxide antireflective layers to produce a coating with superior low emissivity and low visible reflectance, especially for use to reduce heat load in automobiles.
Inventors
- 👤 James Joseph Finley
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 17:50
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3618; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10174; C03C17/3639; C03C17/3644; C03C17/3649; C03C17/3652; C03C17/3657; C03C17/366; C03C17/3681; C23; C23C; C23C14/00; C23C14/06; C23C14/08; C23C14/086; G; G02; G02B; G02B1/00; G02B1/10; G02B1/11; G02B1/113; G02B1/115; G02B1/116; G02B5/00; G02B5/20; G02B5/208; G02B5/26; C03C2217/00; C03C2217/70; C03C2217/78; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12542; Y10T428/12549; Y10T428/12611; Y10T428/12618; Y10T428/12771; Y10T428/12806; Y10T428/12861; Y10T428/12896
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
113 words
A high transmittance, low emissivity article comprising: a. a transparent nonmetallic substrate; b. a first transparent antireflective metal oxide film deposited on a surface of said substrate; c. a transparent infrared reflective metallic film deposited on said antireflective metal oxide layer; d. a transparent metal-containing primer layer deposited on said infrared reflective metallic film; e. a second transparent antireflective metal oxide film on said primer film; f. a second transparent infrared reflective metallic film deposited on said second transparent antireflective metal oxide film; g. a second transparent metal-containing primer layer deposited on said second infrared reflective metal layer; and h. a third transparent antireflective metal oxide film deposited on said second primer layer.
Claim 2
Dependent Claim
113 words
A high transmittance, low emissivity article comprising: a. a transparent nonmetallic substrate; b. a first transparent antireflective metal oxide film deposited on a surface of said substrate; c. a transparent infrared reflective metallic film deposited on said antireflective metal oxide layer; d. a transparent metal-containing primer layer deposited on said infrared reflective metallic film; e. a second transparent antireflective metal oxide film on said primer film; f. a second transparent infrared reflective metallic film deposited on said second transparent antireflective metal oxide film; g. a second transparent metal-containing primer layer deposited on said second infrared reflective metal layer; and h. a third transparent antireflective metal oxide film deposited on said second primer layer.
Claim 3
Dependent Claim
11 words
An article according to claim 1, wherein the substrate is glass.
Claim 4
Dependent Claim
13 words
An article according to claim 2, wherein the reflective metallic films are silver.
Claim 5
Dependent Claim
21 words
An article according to claim 3, wherein the antireflective metal oxide films comprise an oxide reaction product of zinc and tin.
Claim 6
Dependent Claim
12 words
An article according to claim 1, wherein said primer films comprise titanium.
Claim 7
Dependent Claim
26 words
An article according to claim 1, further comprising an additional primer layer between said first transparent antireflective film and said first transparent infrared reflective metallic film.
Claim 8
Dependent Claim
13 words
An article according to claim 6, wherein said additional primer layer comprises titanium.
Claim 9
Dependent Claim
27 words
An article according to claim 7, further comprising a second additional primer layer between said second transparent antireflective film and said second transparent infrared reflective metal film.
Claim 10
Dependent Claim
12 words
An article according to claim 8, wherein all primer layers comprise titanium.
Claim 11
Dependent Claim
20 words
An article according to claim 1, further comprising a protective metal-containing overcoat deposited over said third antireflective metal oxide film.
Claim 12
Independent Claim
108 words
A method for depositing high-temperature resistant film comprising the steps of: a. sputtering a metal in a reactive atmosphere comprising oxygen thereby depositing a first metal oxide film on a surface of a substrate; b. sputtering a reflective metallic film over said metal oxide layer; c. sputtering a metal-containing primer layer over said reflective metallic film; d. sputtering a second metal oxide film over said primer layer; e. sputtering a second infrared reflective metal film over said second metal oxide film; f. sputtering a second metal-containing primer layer over said second infrared reflective layer; and g. sputtering a third antireflective metal oxide layer over said second primer layer.
Claim 13
Independent Claim
108 words
A method for depositing high-temperature resistant film comprising the steps of: a. sputtering a metal in a reactive atmosphere comprising oxygen thereby depositing a first metal oxide film on a surface of a substrate; b. sputtering a reflective metallic film over said metal oxide layer; c. sputtering a metal-containing primer layer over said reflective metallic film; d. sputtering a second metal oxide film over said primer layer; e. sputtering a second infrared reflective metal film over said second metal oxide film; f. sputtering a second metal-containing primer layer over said second infrared reflective layer; and g. sputtering a third antireflective metal oxide layer over said second primer layer.
Claim 14
Dependent Claim
12 words
A method according to claim 11, wherein said primer layers comprise titanium.
Claim 15
Dependent Claim
11 words
A method according to claim 12, wherein said substrate is glass.
Claim 16
Dependent Claim
20 words
A method according to claim 13, wherein said metal oxide film comprises an oxide reaction produce of zinc and tin.
Claim 17
Dependent Claim
23 words
A method according to claim 11, further comprising the step of depositing a protective metal-containing overcoat deposited over said third antireflective oxide film.
Claim 18
Independent Claim
186 words
A method for making a multiple layer low emissivity coated product comprising the steps of: a. placing a transparent, nonmetallic substrate in a sputtering chamber; b. sputtering zinc and tin in a reactive atmosphere comprising oxygen to deposit a first transparent zinc/tin oxide film on a surface of said substrate; c. sputtering titanium to deposit a primer layer on said oxide film; d. sputtering silver in an inert atmosphere to deposit a transparent silver film on said primer layer; e. sputtering titanium to deposit a second primer layer on said silver film; f. sputtering cathode zinc and tin in a reactive atmosphere comprising oxygen to deposit a second zinc/tin oxide film on said second primer layer g. sputtering titanium to deposit a third primer layer on said second oxide film; h. sputtering silver in an inert atmosphere to deposit a second silver film on said third primer layer; i. sputtering titanium to deposit a fourth primer layer on said second silver layer; and j. sputtering zinc and tin in a reactive atmosphere comprising oxygen to deposit a third zinc/tin oxide film on said fourth primer layer.
Claim 19
Independent Claim
186 words
A method for making a multiple layer low emissivity coated product comprising the steps of: a. placing a transparent, nonmetallic substrate in a sputtering chamber; b. sputtering zinc and tin in a reactive atmosphere comprising oxygen to deposit a first transparent zinc/tin oxide film on a surface of said substrate; c. sputtering titanium to deposit a primer layer on said oxide film; d. sputtering silver in an inert atmosphere to deposit a transparent silver film on said primer layer; e. sputtering titanium to deposit a second primer layer on said silver film; f. sputtering cathode zinc and tin in a reactive atmosphere comprising oxygen to deposit a second zinc/tin oxide film on said second primer layer g. sputtering titanium to deposit a third primer layer on said second oxide film; h. sputtering silver in an inert atmosphere to deposit a second silver film on said third primer layer; i. sputtering titanium to deposit a fourth primer layer on said second silver layer; and j. sputtering zinc and tin in a reactive atmosphere comprising oxygen to deposit a third zinc/tin oxide film on said fourth primer layer.
Claim 20
Dependent Claim
11 words
The method according to claim 16, wherein the substrate is glass.
Claim 21
Dependent Claim
23 words
The method according to claim 12, further comprising the step of depositing a metal-containing protective coating over said third metal alloy oxide film.
Claim 22
Dependent Claim
12 words
The method according to claim 18, wherein said primer layers comprise titanium.
Claim 23
Dependent Claim
27 words
The method according to claim 11, comprising the further step of subjecting the multiple-layer coated article to high temperature processing whereby the transmittance of the coating increases.
References Cited (Backward Citations)
No citation records indexed.
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