US6043009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite photographic material with laminated biaxially oriented polyolefin sheets
Assignee: Eastman Kodak Co
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Filing: 1998-12-10
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Granted: 2000-03-28
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Expires: 2018-12-10
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
2026-10-26 05:42
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: 13
Claim 1
Independent Claim
90 words
A method of forming a photographic element comprising providing a preformed biaxially oriented polyolefin sheet, providing a cellulose fiber base paper, applying a bonding agent onto the bottom said base paper and simultaneously applying said sheet to said bonding agent to join said sheet to the bottom of said base paper, applying a bonding agent to the top of said base paper, simultaneously bringing a preformed microvoided biaxially oriented polyolefin sheet into contact with the top of said base paper, and coating at least one layer of photosensitive silver halide.
Claim 2
Independent Claim
90 words
A method of forming a photographic element comprising providing a preformed biaxially oriented polyolefin sheet, providing a cellulose fiber base paper, applying a bonding agent onto the bottom said base paper and simultaneously applying said sheet to said bonding agent to join said sheet to the bottom of said base paper, applying a bonding agent to the top of said base paper, simultaneously bringing a preformed microvoided biaxially oriented polyolefin sheet into contact with the top of said base paper, and coating at least one layer of photosensitive silver halide.
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein at least one core layer of said microvoided biaxially oriented sheet is microvoided.
Claim 4
Dependent Claim
18 words
A method of claim 1 wherein the top bonding agent and the bottom bonding agent comprise a polyolefin.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein said bonding agent for said microvoided biaxially oriented polyolefin sheet comprises polyethylene extruded onto said base paper.
Claim 6
Dependent Claim
20 words
The method of claim 1 wherein said bonding agent for said microvoided biaxially oriented polyolefin sheet comprises an adhesive polymer.
Claim 7
Dependent Claim
31 words
The method of claim 1 wherein said top bonding agent is applied into a nip simultaneously with the biaxially oriented microvoided sheet and said base paper being brought into the nip.
Claim 8
Dependent Claim
12 words
The method of claim 6 wherein said bonding agent comprises polyethylene adhesive.
Claim 9
Dependent Claim
25 words
The method of claim 1 wherein said top microvoided biaxially oriented polyolefin sheet comprises at least one microvoided core layer and solid polymer skin layers.
Claim 10
Dependent Claim
21 words
The method of claim 8 wherein said top microvoided polyolefin sheet has a thickness of between about 13 and 65 microns.
Claim 11
Dependent Claim
17 words
The method of claim 9 wherein said top microvoided polyolefin sheet comprises a layer comprising titanium dioxide.
Claim 12
Dependent Claim
22 words
The method of claim 8 wherein said top microvoided sheet has a Young's modulus of between about 689 Mpa to 5516 Mpa.
Claim 13
Dependent Claim
46 words
The method of claim 1 wherein three photosensitive layers are coated onto the top of said photographic element, and that at least one layer is sensitive to red light, one layer is sensitive to blue light, and at least one layer is sensitive to green light.
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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) | 2003-03-28 | 2003-09-27 | 2004-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-03-28 | 2007-09-27 | 2008-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-03-28 | 2011-09-27 | 2012-03-28 | $7700.00 | Window Closed / Lapsed |