Patent US5866282A successfully refreshed from Google Patents.
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 14:25
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.
References Cited (Backward Citations)
GB1330510A
Cited
US3944699A
Cited
US4187113A
Cited
US4283486A
Cited
US4377616A
Cited
EP0183467A1
Cited
US4579810A
Cited
US4632869A
Cited
US4758462A
Cited
JPH01282552A
Cited
US4912333A
Cited
US4994312A
Cited
US5275854A
Cited
US5141685A
Cited
USRE34742E
Cited
US5100862A
Cited
US5055371A
Cited
US5244861A
Cited
US5434039A
Cited
EP0570969A1
Cited
WO1994004961A1
Cited
WO1994006849A1
Cited
US5466519A
Cited
US5514460A
Cited
US5443915A
Cited
WO1996012766A1
Cited
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 |