US6420032B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesion layer for metal oxide UV filters
Assignee: SABIC Global Technologies BV
•
Filing: 1999-03-17
•
Granted: 2002-07-16
•
Expires: 2019-03-17
Abstract
Abstract An adhesion promoting layer is formed between a transparent substrate and a metal oxide layer to prevent the metal oxide layer from delaminating from the substrate. Preferably, the substrate is a transparent polycarbonate, the adhesion promoting layer is a thin, transparent Al or Ag layer, and the metal oxide layer is ZnO, AZO or IZO UV radiation absorption layer. The layers are preferably deposited by arc plasma deposition or by sputtering.
Inventors
- 👤 Charles Dominic Iacovangelo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:43
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3605; C03C17/3618; C03C17/3644; C03C17/3649; C03C17/3681; C03C17/38; G; G02; G02B; G02B5/00; G02B5/20; G02B5/208; C03C2217/00; C03C2217/70; C03C2217/74; C03C2217/78; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
93 words
A multilayer structure, comprising: a polymeric substrate; a transparent metal layer on the substrate; and a transparent metal oxide layer including at least one compound selected from the group consisting of ZnO, indium doped zinc oxide, and aluminum doped zinc oxide, wherein the metal oxide layer is in direct contact with the metal layer, and the adhesion strength between the metal oxide layer and the substrate is a) 2.07 MPa or greater; and b) decreases by no more than 10% after being submerged for 4 days in distilled water at 65 degrees C.
Claim 2
Dependent Claim
93 words
A multilayer structure, comprising: a polymeric substrate; a transparent metal layer on the substrate; and a transparent metal oxide layer including at least one compound selected from the group consisting of ZnO, indium doped zinc oxide, and aluminum doped zinc oxide, wherein the metal oxide layer is in direct contact with the metal layer, and the adhesion strength between the metal oxide layer and the substrate is a) 2.07 MPa or greater; and b) decreases by no more than 10% after being submerged for 4 days in distilled water at 65 degrees C.
Claim 3
Dependent Claim
15 words
The multilayer structure of claim 1 , wherein the substrate is a transparent polymeric material.
Claim 4
Dependent Claim
17 words
The structure of claim 2 , wherein the transparent polymeric material comprises polycarbonate, polyestercarbonate, polyethersulfone or polyetherimide.
Claim 5
Dependent Claim
18 words
The structure of claim 1 , wherein the metal layer comprises at least one of aluminum and silver.
Claim 6
Dependent Claim
16 words
The structure of claim 1 , wherein the metal layer is substantially transparent to visible light.
Claim 7
Dependent Claim
16 words
The structure of claim 5 , wherein the metal layer is 10 to 40 nm thick.
Claim 8
Dependent Claim
17 words
The structure of claim 1 , wherein the metal layer is in direct contact with the substrate.
Claim 9
Dependent Claim
19 words
The structure of claim 1 , further comprising a stress reducing interlayer between the substrate and the metal layer.
Claim 10
Dependent Claim
17 words
The structure of claim 8 , wherein the stress reducing interlayer comprises a plasma polymerized organosilicon material.
Claim 11
Dependent Claim
25 words
The structure of claim 1 , wherein the metal layer and the metal oxide layer are formed on more than one side of the substrate.
Claim 12
Dependent Claim
28 words
The structure of claim 1 , wherein the substrate is transparent, the metal layer comprises aluminum or silver, and the metal oxide layer comprises ZnO, IZO or AZO.
Claim 13
Dependent Claim
20 words
The structure of claim 1 , wherein the metal oxide layer comprises TiO 2 , CeO 2 , or ZnS.
Claim 14
Dependent Claim
25 words
The structure of claim 11 , wherein the substrate comprises polycarbonate, polyestercarbonate, polyethersulfone or polyetherimide, the metal comprises aluminum, and the metal oxide comprises ZnO.
Claim 15
Dependent Claim
53 words
The structure of claim 13 , wherein the ZnO is in direct contact with aluminum, and wherein the adhesion strength between the ZnO and the aluminum is either: a) 2.07 MPa or greater; or b) decreases by 10% or less; after being submerged for 4 days in distilled water at 65 degrees C.
Claim 16
Dependent Claim
61 words
The structure of claim 1 , wherein: the substrate comprises a vehicle window, an apparatus window, a building window, a display screen, or an electronic device substrate; the metal layer comprises at least one of an infrared radiation reflection layer and an adhesion promoting layer; and the metal oxide layer comprises an ultraviolet radiation absorption layer or a transparent electrode layer.
Claim 17
Dependent Claim
17 words
The structure of claim 1 , wherein the metal oxide layer is 200 to 10,000 nm thick.
Claim 18
Independent Claim
99 words
A method of coating a polymeric substrate, comprising the steps of: forming a transparent metal layer over the substrate; and forming a transparent metal oxide layer including at least one compound selected from the group consisting of ZnO, indium doped zinc oxide, and aluminum doped zinc oxide, wherein the metal oxide layer is in direct contact with the metal layer, and the adhesion strength between the metal oxide layer and the substrate is a) 2.07 MPa or greater; and b) decreases by no more than 10% after being submerged for 4 days in distilled water at 65 degrees C.
Claim 19
Independent Claim
99 words
A method of coating a polymeric substrate, comprising the steps of: forming a transparent metal layer over the substrate; and forming a transparent metal oxide layer including at least one compound selected from the group consisting of ZnO, indium doped zinc oxide, and aluminum doped zinc oxide, wherein the metal oxide layer is in direct contact with the metal layer, and the adhesion strength between the metal oxide layer and the substrate is a) 2.07 MPa or greater; and b) decreases by no more than 10% after being submerged for 4 days in distilled water at 65 degrees C.
Claim 20
Dependent Claim
14 words
The method of claim 17 , wherein the substrate comprises a transparent polymeric material.
Claim 21
Dependent Claim
17 words
The method of claim 18 , wherein the transparent polymeric material comprises polycarbonate, polyestercarbonate, polyethersulfone or polyetherimide.
Claim 22
Dependent Claim
18 words
The method of claim 17 , wherein the metal layer comprises at least one of aluminum and silver.
Claim 23
Dependent Claim
16 words
The method of claim 17 , wherein the metal layer is substantially transparent to visible light.
Claim 24
Dependent Claim
16 words
The method of claim 21 , wherein the metal layer is 10 to 40 nm thick.
Claim 25
Dependent Claim
23 words
The method of claim 17 , wherein the metal oxide comprises at least one of TiO 2 , CeO 2 , and ZnS.
Claim 26
Dependent Claim
23 words
The method of claim 17 , wherein the step of forming a metal layer comprises forming the metal layer directly on the substrate.
Claim 27
Dependent Claim
21 words
The method of claim 17 , further comprising the step of forming an abrasion resistant layer on the metal oxide layer.
Claim 28
Dependent Claim
22 words
The method of claim 25 , wherein the abrasion resistant layer comprises silicon dioxide, alumina, acrylic or a plasma polymerized organosilicon material.
Claim 29
Dependent Claim
42 words
The method of claim 25 , further comprising step of forming at least one stress reducing interlayer comprising aluminum or a plasma polymerized organosilicon between the substrate and the metal layer; or between the metal oxide layer and the abrasion resistant layer.
Claim 30
Dependent Claim
33 words
The method of claim 27 , wherein at least two of the stress reducing interlayer, the abrasion resistant layer, the metal layer and the metal oxide layer are formed in same processing chamber.
Claim 31
Dependent Claim
25 words
The method of claim 17 , wherein the metal layer and the metal oxide layer are formed on more than one side of the substrate.
Claim 32
Dependent Claim
26 words
The method of claim 17 , wherein the substrate comprises a polymer, the metal comprises aluminum or silver, and the metal oxide comprises ZnO or IZO.
Claim 33
Dependent Claim
25 words
The method of claim 30 , wherein the substrate comprises polycarbonate, polyestercarbonate, polyethersulfone or polyetherimide, the metal comprises aluminum, and the metal oxide comprises ZnO.
Claim 34
Dependent Claim
44 words
The method of claim 31 , wherein the ZnO is in direct contact with aluminum, and wherein the adhesion strength between the ZnO and the aluminum decreases by 10% or less after being submerged for 4 hours in distilled water at 65 degrees C.
Claim 35
Dependent Claim
61 words
The method of claim 17 , wherein: the substrate comprises a vehicle window, an apparatus window, a building window, a display screen, or an electronic device substrate; the metal layer comprises at least one of an infrared radiation reflection layer and an adhesion promoting layer; and the metal oxide layer comprises an ultraviolet radiation absorption layer or a transparent electrode layer.
Claim 36
Dependent Claim
17 words
The method of claim 17 , wherein the metal oxide layer is 200 to 10,000 nm thick.
Claim 37
Dependent Claim
115 words
A transparent window usable in a vehicle, a building, a display device or an apparatus, comprising a polycarbonate, polyestercarbonate, polyethersulfone or polyetherimide substrate; an infrared radiation reflection layer comprising aluminum or silver; and an ultraviolet radiation absorption layer including at least one compound selected from the group consisting of ZnO, indium doped zinc oxide, and aluminum doped zinc oxide, wherein the ultraviolet radiation absorption layer is in direct contact with the infrared radiation reflection layer, and the adhesion strength between the ultraviolet radiation absorption layer and the substrate is a) 2.07 MPa or greater; and b) decreases by no more than 10% after being submerged for 4 days in distilled water at 65 degrees C.
Claim 38
Dependent Claim
115 words
A transparent window usable in a vehicle, a building, a display device or an apparatus, comprising a polycarbonate, polyestercarbonate, polyethersulfone or polyetherimide substrate; an infrared radiation reflection layer comprising aluminum or silver; and an ultraviolet radiation absorption layer including at least one compound selected from the group consisting of ZnO, indium doped zinc oxide, and aluminum doped zinc oxide, wherein the ultraviolet radiation absorption layer is in direct contact with the infrared radiation reflection layer, and the adhesion strength between the ultraviolet radiation absorption layer and the substrate is a) 2.07 MPa or greater; and b) decreases by no more than 10% after being submerged for 4 days in distilled water at 65 degrees C.
Claim 39
Dependent Claim
29 words
The window of claim 35 , further comprising: a scratch resistant coating comprising alumina, silicon dioxide, acrylic or a plasma polymerized organosilicon material on the ultraviolet radiation absorption layer.
Claim 40
Dependent Claim
34 words
The window of claim 36 , further comprising: a first polymerized organosilicon interlayer adjacent to the infrared radiation reflection layer; and a second polymerized organosilicon or aluminum interlayer adjacent to the scratch resistant coating.
Claim 41
Dependent Claim
17 words
The window of claim 35 , wherein the metal oxide layer is 200 to 10,000 nm thick.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-07-15 | 2006-01-14 | 2006-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-07-15 | 2010-01-14 | 2010-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-07-15 | 2014-01-14 | 2014-07-16 | $7700.00 | Window Closed / Lapsed |