US4687707A
Expired / Lapsed
US
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Low reflectance transparent material having antisoiling properties
Assignee: AGC Inc
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Filing: 1986-12-05
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Granted: 1987-08-18
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Expires: 2006-12-05
Abstract
Abstract A low reflectance transparent material having antisoiling properties, which comprises a transparent substrate and a multi-layer coating formed on the substrate, said coating comprising at least one thin layer of a condensation product containing a metal oxide, and a thin layer of a condensation product of a fluorine-containing silicon compound having a polyfluorinated carbon chain or a perfluorocarbon chain, formed thereon.
Inventors
- 👤 Masashi Matsuo
- 👤 Nobuyuki Yamagishi
- 👤 Makoto Noshiro
- 👤 Yukio Jitsugiri
- 👤 Keiichi Ohnishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:11
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/42; C08; C08J; C08J7/00; C08J7/04; C08J7/042; C08J7/0423; C08J7/043; C08J7/046; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
63 words
A low reflectance transparent material having antisoiling properties, which comprises a transparent substrate and a multi-layer coating formed on the substrate, said coating comprising at least one thin layer of a condensation product containing a metal oxide, and a thin layer of a condensation product of a fluorine-containing silicon compound having a perfluorocarbon chain containing from 3 to 20 carbon atoms, formed thereon.
Claim 2
Dependent Claim
63 words
A low reflectance transparent material having antisoiling properties, which comprises a transparent substrate and a multi-layer coating formed on the substrate, said coating comprising at least one thin layer of a condensation product containing a metal oxide, and a thin layer of a condensation product of a fluorine-containing silicon compound having a perfluorocarbon chain containing from 3 to 20 carbon atoms, formed thereon.
Claim 3
Dependent Claim
17 words
The low reflectance transparent material according to claim 1, wherein the transparent substrate is made of glass.
Claim 4
Dependent Claim
18 words
The low reflectance transparent material according to claim 1, wherein the transparent substrate is made of a plastic.
Claim 5
Dependent Claim
29 words
The low reflectance transparent material according to claim 1, wherein the thin layer of a condensation product containing a metal oxide has a thickness of at most 0.3 μm.
Claim 6
Dependent Claim
36 words
The low reflectance transparent material according to claim 1, wherein the condensation product containing a metal oxide is a co-condensation product containing a SiO 2 compound and a TiO 2 compound or a ZrO 2 compound.
Claim 7
Dependent Claim
34 words
The low reflectance transparent material according to claim 1, wherein the thin layer of a condensation product of a fluorine-containing silicon compound having a perfluorocarbon chain has a thickness of at most 0.2 μm.
Claim 8
Dependent Claim
33 words
The low reflectance transparent material according to claim 6, wherein the fluorine-containing silicon compound is a dialkoxy silane or trialkoxy silane compound having a perfluoroalkyl group containing from 3 to 20 carbon atoms.
Claim 9
Dependent Claim
35 words
The low reflectance transparent material according to claim 6, wherein the fluorine-containing silicon compound is a compound having a perfluoroalkylene group containing from 3 to 12 carbon atoms and a silyl group at each end.
Claim 10
Dependent Claim
31 words
The low reflectance transparent material according to claim 1, wherein the condensation product of a fluorine-containing silicon compound having a perfluorocarbon chain is a co-condensation product with a silane coupling agent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-17 | 1991-02-16 | 1991-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-17 | 1995-02-16 | 1995-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-17 | 1999-02-16 | 1999-08-18 | $7700.00 | Window Closed / Lapsed |