US5271994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heatable automobile glazing of laminated glass
Assignee: Saint Gobain Glass France SAS
•
Filing: 1990-12-07
•
Granted: 1993-12-21
•
Expires: 2010-12-07
Abstract
Abstract An electrically heatable laminated glazing system is disclosed comprising two single glass panes (1,4) bonded together by a thermoplastic film of polyvinyl butyral (3). One of these two panes (1) bears a layered construction (2). The layered construction comprises a conducting silver layer (22), an anti-reflective cover layer (23) of zinc oxide disposed on the silver layer (22), and a bonding layer (24) utilized to improve a bond between the polyvinyl butyral film (3) and the anti-reflective covering layer (23). The bonding layer comprises one of the metals in groups IV, V, or VII of the periodic system or an oxide of these metals.
Inventors
- 👤 Gunter Termath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:30
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10761; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10174; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
91 words
A laminated glazing system comprising: first and second glass panes, one of said glass panes bearing a layered construction, wherein said layered construction is bonded to the other glass pane by a polyvinyl butyral film, said layered construction comprising a silver layer, an anti-reflective layer of ZnO disposed on said silver layer, and a bonding layer disposed on said anti-reflective layer and contacting said film, said bonding layer comprising at least one metal from groups IV, V, or VIII of the periodic system or an alloy or oxide of these metals.
Claim 2
Dependent Claim
91 words
A laminated glazing system comprising: first and second glass panes, one of said glass panes bearing a layered construction, wherein said layered construction is bonded to the other glass pane by a polyvinyl butyral film, said layered construction comprising a silver layer, an anti-reflective layer of ZnO disposed on said silver layer, and a bonding layer disposed on said anti-reflective layer and contacting said film, said bonding layer comprising at least one metal from groups IV, V, or VIII of the periodic system or an alloy or oxide of these metals.
Claim 3
Dependent Claim
27 words
The laminated glazing system of claim 1 further comprising a metallic layer or substoichiometric metallic oxide layer positioned between said anti-reflective covering layer and said silver layer.
Claim 4
Dependent Claim
18 words
The laminated glazing system of claim 1 wherein said layered construction is applied by means of cathode sputtering.
Claim 5
Dependent Claim
26 words
The laminated glazing system of claim 1 wherein the bonding layer is a metal oxide and has a thickness of between about 10 and 100 Angstroms.
Claim 6
Dependent Claim
27 words
The laminated glazing system of claim 1 wherein the bonding layer is a metal or alloy and has a thickness of between about 10 and 30 Angstroms.
Claim 7
Dependent Claim
19 words
The laminated glazing system of claim 5, wherein the bonding layer comprises tantalum, titanium, nickel, or a nickel-chromium alloy.
Claim 8
Dependent Claim
22 words
The laminated glazing system of claim 1 wherein the bonding layer comprises titanium, nickel, nickel-chromium, tantalum, or an oxide of these metals.
Claim 9
Dependent Claim
14 words
The laminated glazing system of claim 1, wherein the bonding layer is titanium oxide.
Claim 10
Dependent Claim
88 words
A laminated glazing system comprising: first and second glass panes, one of said glass panes bearing a layered construction, wherein said layered construction is bonded to the other glass pane by a polyvinyl butyral film, said layered construction comprising a conductive silver layer, an anti-reflective layer of ZnO disposed on said conductive silver layer, and a bonding layer disposed on said anti-reflective layer and contacting said film, said bonding layer comprising at least one metal from group VIII of the periodic system in the form of an oxide.
Claim 11
Dependent Claim
88 words
A laminated glazing system comprising: first and second glass panes, one of said glass panes bearing a layered construction, wherein said layered construction is bonded to the other glass pane by a polyvinyl butyral film, said layered construction comprising a conductive silver layer, an anti-reflective layer of ZnO disposed on said conductive silver layer, and a bonding layer disposed on said anti-reflective layer and contacting said film, said bonding layer comprising at least one metal from group VIII of the periodic system in the form of an oxide.
Claim 12
Dependent Claim
16 words
The laminated glazing system of claim 9 wherein the bonding layer comprises an oxide of nickel.
Claim 13
Dependent Claim
20 words
The laminated glazing system of claim 9 wherein the thickness of said bonding layer is between 10 and 100 Angstroms.
Claim 14
Dependent Claim
28 words
The laminated glazing system of claim 9 which further comprises a metallic layer or a substoichiometric metallic oxide layer positioned between said antireflective layer and said silver layer.
References Cited (Backward Citations)
US3274024A
Cited
US3826728A
Cited
US3826728B1
Cited
US3826728B2
Cited
US3878079A
Cited
US3889026A
Cited
US4045125A
Cited
US4322276A
Cited
US4368945A
Cited
US4465736A
Cited
EP0104870A2
Cited
US4710426A
Cited
US4702955A
Cited
JPS62123403A
Cited
US5061567A
Cited
US4654067A
Cited
US4749397A
Cited
US4799745A
Cited
US4799745B1
Cited
WO1988001230A1
Cited
US4943484A
Cited
US4668270A
Cited
EP0263623A2
Cited
US4773717A
Cited
US4744844A
Cited
JPS63242948A
Cited
US4782216A
Cited
US4973511A
Cited
US5085926A
Cited
US4943140A
Cited
US5061568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-12-20 | 1997-06-21 | 1997-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-20 | 2001-06-21 | 2001-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-20 | 2005-06-21 | 2005-12-21 | $7700.00 | Window Closed / Lapsed |