Patent EP1113318A2 successfully refreshed from Google Patents.
EP1113318A2
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Tough reflective image display material
Assignee: Eastman Kodak Co
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Filing: 2000-12-11
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Granted: —
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Expires: 2020-12-11
Abstract
Abstract This invention relates to a photographic element comprising at least one photosensitive layer, and a base material comprising an upper and lower biaxially oriented polymer sheet separated by a paper sheet, wherein said base material has a thickness of greater than 254 micrometers, a stiffness of greater than 325 millinewtons in any direction, and an upper surface roughness of less than 0.45 micrometers at a spatial frequency of between 0.30 and 6.35 millimeters, and a transmission percent of less than 15 percent.
Inventors
- 👤 Peter Thomas c/o Eastman Kodak Company Aylward
- 👤 Robert Paul c/o Eastman Kodak Company Bourdelais
- 👤 Alphonse Dominic c/o Eastman Kodak Company Camp
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 08:53
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/79; G03C11/00; G03C11/08; G03C5/00; G03C5/04; Y; Y10; Y10S; Y10S430/00; Y10S430/162
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
78 words
A photographic element comprising at least one photosensitive
layer, and a base material comprising an upper and lower biaxially oriented
polymer sheet separated by a paper sheet, wherein said base material has a
thickness of greater than 254 micrometers, a stiffness of greater than 325
millinewtons in any direction, and an upper surface roughness of less than 0.45
micrometers at a spatial frequency of between 0.30 and 6.35 millimeters, and a
transmission percent of less than 15 percent.
Claim 2
Dependent Claim
20 words
The photographic element of Claim 1 wherein said paper sheet
has a basis weight of greater than 200g/m 2 .
Claim 3
Dependent Claim
21 words
The photographic element of Claims 1 or 2 wherein said
photographic element has a stiffness of between 325 and 650 millinewtons.
Claim 4
Dependent Claim
22 words
The photographic element of any of Claims 1-3 wherein said
photographic element has upper surface roughness of between 0.20 and 0.50
micrometers.
Claim 5
Dependent Claim
21 words
The photographic element of any of Claims 1-4 wherein said
paper sheet has a thickness of between 6.7 and 9.0 mils.
Claim 6
Dependent Claim
43 words
The photographic element of any of Claims 1-5 wherein said
base material comprising an upper and lower biaxially oriented polymer sheet
separated by a paper sheet further comprises an adhesive layer between said upper
and lower biaxially oriented polymer sheets and paper sheet.
Claim 7
Dependent Claim
96 words
A reflection display material comprising an image, a laminated
base material, and a scratch resistant polymer sheet laminated onto the top surface
of said image, wherein said laminated base material comprises an upper and lower
biaxially oriented polymer sheet separated by a paper sheet, wherein said
laminated base material has a thickness of greater than 254 micrometers, a
stiffness of greater than 325 millinewtons in any direction, and an upper surface
roughness of less than 0.45 micrometers at a spatial frequency of between 0.30
and 6.35 millimeters, and a transmission percent of less than 15 percent.
Claim 8
Dependent Claim
17 words
The reflection display material of Claim 7 wherein said scratch
resistant polymer sheet comprises a polycarbonate sheet.
Claim 9
Dependent Claim
24 words
The reflection display material of Claims 7 or 8 wherein said
scratch resistant polymer sheet has a scratch resistance of greater than 3 grams.
Claim 10
Independent Claim
114 words
A method of forming a reflection display material comprising
providing a photographic element comprising at least one photosensitive layer,
and a base material comprising an upper and lower biaxially oriented polymer
sheet separated by a paper sheet, wherein said base material has a thickness of
greater than 254 micrometers, a stiffness of greater than 325 millinewtons in any
direction, and an upper surface roughness of less than 0.45 micrometers at a
spatial frequency of between 0.30 and 6.35 millimeters, and a transmission percent
of less than 15 percent, imaging said photographic element, developing said
photographic element to produce an image, and bringing the developed
photographic element into contact with a scratch resistant polymer sheet.
References Cited (Backward Citations)
No citation records indexed.
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