US5281514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimensionally stable photographic element
Assignee: Agfa Gevaert NV
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Filing: 1992-12-10
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Granted: 1994-01-25
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Expires: 2012-12-10
Abstract
Abstract Photographic element having high dimensional stability comprising a hydrophobic polyester film support, a barrier layer retarding diffusion of water in liquid or vapor phase into the hydrophobic polyester film support, and at least one hydrophilic image-precursor layer, said barrier layer being a vapor-deposited glass layer.
Inventors
- 👤 Guido Desie
- 👤 Eric Verschueren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:59
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/795; G03C1/7954; G03C1/91; G03C8/00; G03C8/42; G03C8/52; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31616
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
Photographic element having high dimensional stability, said element comprising a hydrophobic polyester film support, a barrier layer retarding diffusion of water in liquid or vapour phase into said hydrophobic polyester film support, and at least one hydrophilic image-precursor layer, wherein said barrier layer is a vapour-deposited glass layer having a thickness of at least 0.01 μm and substantially composed of SiO x , x standing for a value ranging from 1.2 to 1.8.
Claim 2
Dependent Claim
73 words
Photographic element having high dimensional stability, said element comprising a hydrophobic polyester film support, a barrier layer retarding diffusion of water in liquid or vapour phase into said hydrophobic polyester film support, and at least one hydrophilic image-precursor layer, wherein said barrier layer is a vapour-deposited glass layer having a thickness of at least 0.01 μm and substantially composed of SiO x , x standing for a value ranging from 1.2 to 1.8.
Claim 3
Dependent Claim
13 words
A photographic element according to claim 1, wherein said polyester is polyethylene terephthalate.
Claim 4
Dependent Claim
18 words
A photographic element according to claim 1, wherein x stands for a value ranging from 1.5 to 1.7.
Claim 5
Dependent Claim
20 words
A photographic element according to claim 1, wherein the thickness of the vapour-deposited layer ranges from 0.05 to 0.15 μm.
Claim 6
Dependent Claim
23 words
A photographic element according to claim 1, wherein said hydrophobic polyester film support is provided on both sides with a vapour-deposited glass layer.
Claim 7
Dependent Claim
68 words
A photographic element according to claim 1, wherein said hydrophilic layer comprises an organic silicon compound comprising hydrocarbon groups directly or indirectly attached to a silicon atom, at least one of said hydrocarbon groups carrying a group or atom that has chemical affinity for the free reactive groups of said hydrophilic or that can be cross-linked to said free reactive groups through the intermediary of a cross-linking 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) | 1997-01-24 | 1997-07-26 | 1998-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-24 | 2001-07-26 | 2002-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-24 | 2005-07-26 | 2006-01-25 | $7700.00 | Window Closed / Lapsed |