US5866282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite photographic material with laminated biaxially oriented polyolefin sheets
Assignee: Eastman Kodak Co
•
Filing: 1997-05-23
•
Granted: 1999-02-02
•
Expires: 2017-05-23
Abstract
Abstract The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, and a layer of microvoided biaxially oriented polyolefin sheet between said paper base and said silver halide layer.
Inventors
- 👤 Robert P. Bourdelais
- 👤 Douglas N. Haydock
- 👤 Thaddeus S. Gula
- 👤 Peter T. Aylward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:59
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/79; G03C1/91; G03C1/93; G03C7/00; G03C7/30; G03C7/3029; Y; Y10; Y10S; Y10S430/00; Y10S430/131; Y10S430/136; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
33 words
A photographic element comprising a paper base, at least one photosensitive silver halide layer, and a microvoided biaxially oriented polyolefin sheet between said paper base and said at least one silver halide layer.
Claim 2
Dependent Claim
33 words
A photographic element comprising a paper base, at least one photosensitive silver halide layer, and a microvoided biaxially oriented polyolefin sheet between said paper base and said at least one silver halide layer.
Claim 3
Dependent Claim
30 words
A photographic element of claim 1 wherein said element further comprises a biaxially oriented polyolefin sheet on the opposite side of said base paper from said photosensitive silver halide layer.
Claim 4
Dependent Claim
25 words
The photographic element of claim 1 wherein said microvoided polyolefin sheet comprises a sheet of a percent solid density between about 77% and about 100%.
Claim 5
Dependent Claim
23 words
The photographic element of claim 1 wherein said microvoided polyolefin sheet comprises a sheet of a percent solid density between 80% and 87%.
Claim 6
Dependent Claim
18 words
The photographic element of claim 1 wherein said microvoided polyolefin sheet comprises a skin layer of nonvoided material.
Claim 7
Dependent Claim
18 words
The photographic element of claim 1 wherein said microvoided polyolefin sheet comprises a skin layer on each surface.
Claim 8
Dependent Claim
21 words
The photographic element of claim 1 wherein said microvoided polyolefin sheet has a thickness of between about 13 and 65 microns.
Claim 9
Dependent Claim
17 words
The photographic element of claim 1 wherein said microvoided polyolefin sheet comprises a layer comprising titanium dioxide.
Claim 10
Dependent Claim
20 words
The photographic element of claim 1 further comprising a layer of polyethylene between said microvoided sheet and said paper base.
Claim 11
Dependent Claim
22 words
The photographic element of claim 1 wherein said microvoided sheet has a Young's modulus of between about 689 MPa to 5516 MPa.
Claim 12
Dependent Claim
22 words
The element of claim 1 wherein said sheet has a water vapor transmission rate of less than 1.55×10 -4 g/mm 2 /day/atm.
Claim 13
Dependent Claim
28 words
The element of claim 1 further comprising a copy restrictive pattern of microdots positioned between said at least one silver halide layer and said biaxially oriented polyolefin sheet.
Claim 14
Dependent Claim
67 words
A photographic element comprising a paper base, at least one photosensitive silver halide layer, and a top microvoided biaxially oriented polyolefin sheet between said paper base and said at least one silver halide layer, a lower biaxially oriented polyolefin sheet on the lower side of said base paper from said photosensitive silver halide layer wherein said top microvoided polyolefin sheet comprises a skin layer on each surface.
Claim 15
Dependent Claim
67 words
A photographic element comprising a paper base, at least one photosensitive silver halide layer, and a top microvoided biaxially oriented polyolefin sheet between said paper base and said at least one silver halide layer, a lower biaxially oriented polyolefin sheet on the lower side of said base paper from said photosensitive silver halide layer wherein said top microvoided polyolefin sheet comprises a skin layer on each surface.
Claim 16
Dependent Claim
26 words
The photographic element of claim 13 wherein said top microvoided polyolefin sheet comprises a sheet of a percent solid density between about 77% and about 100%.
Claim 17
Dependent Claim
22 words
The photographic element of claim 13 wherein said top microvoided polyolefin sheet has a thickness of between about 13 and 65 μm.
Claim 18
Dependent Claim
18 words
The photographic element of claim 13 wherein said top microvoided polyolefin sheet comprises a layer comprising titanium dioxide.
Claim 19
Dependent Claim
21 words
The photographic element of claim 16 further comprising a layer of polyethylene between said top microvoided sheet and said paper base.
Claim 20
Dependent Claim
23 words
The photographic element of claim 13 wherein said top microvoided sheet has a Young's modulus of between about 689 MPa to 5516 MPa.
Claim 21
Dependent Claim
23 words
The element of claim 13 wherein said top sheet has a water vapor transmission rate of less than 1.55×10 -4 g/mm 2 /day/atm.
Claim 22
Dependent Claim
13 words
The element of claim 1 wherein said top and lower sheets comprise polypropylene.
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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) | 2002-02-01 | 2002-08-03 | 2003-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-01 | 2006-08-03 | 2007-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-01 | 2010-08-03 | 2011-02-02 | $7700.00 | Window Closed / Lapsed |