US5055358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low reflectance films for transparent substrates
Assignee: Pilkington North America Inc
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Filing: 1989-09-29
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Granted: 1991-10-08
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Expires: 2009-09-29
Abstract
Abstract A transparent substrate is coated with consecutive layers of chromium, chromium oxides, and a metal oxide, thereby producing a transparent article having low visible light transmittance and low film side reflectance, which is particularly useful as an automotive or architectural solar control glazing.
Inventors
- 👤 Robert L. Livingston
- 👤 Gary A. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:45
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3615; C03C17/3649; C03C17/3657; C03C17/366; C03C17/3681; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
97 words
A coated, transparent article, comprising: A) a transparent substrate, having a first, coated side and a non-coated side; B) a coating of chromium deposited on and adhered to the first side of the transparent substrate; C) a coating of chromium oxides deposited on and adhered to the coating of chromium; and D) a coating of a metal oxide deposited on and adhered to the coating of chromium oxides; wherein the visible light transmittance of the coated, transparent article is less than about 15%, and the coated side reflectance of the coated, transparent article less than about 30%.
Claim 2
Dependent Claim
97 words
A coated, transparent article, comprising: A) a transparent substrate, having a first, coated side and a non-coated side; B) a coating of chromium deposited on and adhered to the first side of the transparent substrate; C) a coating of chromium oxides deposited on and adhered to the coating of chromium; and D) a coating of a metal oxide deposited on and adhered to the coating of chromium oxides; wherein the visible light transmittance of the coated, transparent article is less than about 15%, and the coated side reflectance of the coated, transparent article less than about 30%.
Claim 3
Dependent Claim
14 words
The coated, transparent article according to claim 1, wherein the transparent substrate is glass.
Claim 4
Dependent Claim
23 words
The coated, transparent article according to claim 1, wherein the thickness of the chromium layer is about 10 Angstroms to about 1.000 Angstroms.
Claim 5
Dependent Claim
23 words
The coated, transparent article according to claim 3, wherein the thickness of the chromium layer is about 50 Angstroms to about 200 Angstroms.
Claim 6
Dependent Claim
19 words
The coated, transparent article according to claim 4, wherein the thickness of the chromium layer is about 100 Angstroms.
Claim 7
Dependent Claim
24 words
The coated, transparent article according to claim 1, wherein the thickness of the chromium oxides layer is about 25 Angstroms to about 1,500 Angstroms.
Claim 8
Dependent Claim
24 words
The coated, transparent article according to claim 6, wherein the thickness of the chromium oxides layer is about 75 Angstroms to about 350 Angstroms.
Claim 9
Dependent Claim
20 words
The coated, transparent article according to claim 7, wherein the thickness of the chromium oxides layer is about 175 Angstroms.
Claim 10
Dependent Claim
34 words
The coated, transparent article according to claim 1, wherein the metal oxide is selected from the group consisting of the oxides of silicon, tin, titanium, aluminum, nickel, zinc, vanadium, tungsten, tantalum, and mixtures thereof.
Claim 11
Dependent Claim
15 words
The coated, transparent article according to claim 9, wherein the metal oxide is silicon dioxide.
Claim 12
Dependent Claim
24 words
The coated, transparent article according to claim 1, wherein the thickness of the metal oxide layer is about 10 Angstroms to about 10,000 Angstroms.
Claim 13
Dependent Claim
24 words
The coated, transparent article according to claim 11, wherein the thickness of the metal oxide layer is about 100 Angstroms to about 500 Angstroms.
Claim 14
Dependent Claim
20 words
The coated, transparent article according to claim 12, wherein the thickness of the metal oxide layer is about 250 Angstroms.
Claim 15
Dependent Claim
18 words
The coated, transparent article according to claim 1, wherein the visible light transmittance is less than about 10%.
Claim 16
Dependent Claim
18 words
The coated, transparent article according to claim 1, wherein the coated side reflectance is less than about 25%.
Claim 17
Dependent Claim
23 words
The coated, transparent article according to claim 1, wherein the reflectance from the non-coated side of the article is less than about 17%.
Claim 18
Dependent Claim
150 words
A coated, transparent article, comprising: A) a transparent substrate, having a first, coated side and a non-coated side; B) a coating of chromium, deposited on and adhered to the first side of the transparent substrate, having a thickness from about 50 Angstroms to about 200 Angstroms; C) a coating of chromium oxides, deposited on and adhered to the chromium coating, having a thickness from about 75 Angstroms to about 350 Angstroms; and D) a coating of a metal oxide, selected from the group consisting of oxides of silicon, tin, titanium, aluminum, nickel, zinc, vanadium, tungsten, tantalum, and mixtures thereof, deposited on and adhered to the coating of chromium oxides, having a thickness from about 100 Angstroms to about 500 Angstroms; wherein the visible light transmittance of the coated, transparent article is less than about 10%, and the coated side reflectance of the coated, transparent article is less than about 25%.
Claim 19
Dependent Claim
150 words
A coated, transparent article, comprising: A) a transparent substrate, having a first, coated side and a non-coated side; B) a coating of chromium, deposited on and adhered to the first side of the transparent substrate, having a thickness from about 50 Angstroms to about 200 Angstroms; C) a coating of chromium oxides, deposited on and adhered to the chromium coating, having a thickness from about 75 Angstroms to about 350 Angstroms; and D) a coating of a metal oxide, selected from the group consisting of oxides of silicon, tin, titanium, aluminum, nickel, zinc, vanadium, tungsten, tantalum, and mixtures thereof, deposited on and adhered to the coating of chromium oxides, having a thickness from about 100 Angstroms to about 500 Angstroms; wherein the visible light transmittance of the coated, transparent article is less than about 10%, and the coated side reflectance of the coated, transparent article is less than about 25%.
Claim 20
Dependent Claim
14 words
The coated, transparent article according to claim 17, wherein the transparent substrate is glass.
Claim 21
Dependent Claim
19 words
The coated, transparent article according to claim 17, wherein the thickness of the chromium layer is about 100 Angstroms.
Claim 22
Dependent Claim
20 words
The coated, transparent article according to claim 17, wherein the thickness of the chromium oxides layer is about 175 Angstroms.
Claim 23
Dependent Claim
15 words
The coated, transparent article according to claim 17, wherein the metal oxide is silicon dioxide.
Claim 24
Dependent Claim
19 words
The coated, transparent article according to claim 17, wherein the thickness of the metal oxide is about 250 Angstroms.
Claim 25
Dependent Claim
23 words
The coated, transparent article according to claim 17, wherein the reflectance from the non-coated side of the article is less than about 17%.
Claim 26
Dependent Claim
118 words
A coated, transparent article, comprising: A) a glass substrate, having a first, coated side and a non-coated side; B) a coating of chromium, deposited on and adhered to the first surface of the transparent substrate, having a thickness of about 100 Angstroms; C) a coating of chromium oxides deposited on and adhered to the coating of chromium, having a thickness of about 175 Angstroms; and D) a coating of silicon dioxide, deposited on and adhered to the coating of chromium oxides, having a thickness of about 250 Angstroms; wherein the visible light transmittance of the coated, transparent article is less than about 10%, and the coated side reflectance of the coated, transparent article is less than about 25%.
Claim 27
Dependent Claim
118 words
A coated, transparent article, comprising: A) a glass substrate, having a first, coated side and a non-coated side; B) a coating of chromium, deposited on and adhered to the first surface of the transparent substrate, having a thickness of about 100 Angstroms; C) a coating of chromium oxides deposited on and adhered to the coating of chromium, having a thickness of about 175 Angstroms; and D) a coating of silicon dioxide, deposited on and adhered to the coating of chromium oxides, having a thickness of about 250 Angstroms; wherein the visible light transmittance of the coated, transparent article is less than about 10%, and the coated side reflectance of the coated, transparent article is less than about 25%.
Claim 28
Dependent Claim
23 words
The coated, transparent article according to claim 24, wherein the reflectance from the non-coated side of the article is less than about 17%.
Claim 29
Dependent Claim
7 words
A glazing, as defined in claim 1.
Claim 30
Dependent Claim
7 words
A glazing, as defined in claim 17.
Claim 31
Dependent Claim
7 words
A glazing, as defined in claim 24.
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