Patent US2073980A successfully refreshed from Google Patents.
US5536627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic elements with improved cinch scratch resistance
Assignee: Eastman Kodak Co
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Filing: 1995-03-21
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Granted: 1996-07-16
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Expires: 2015-03-21
Abstract
Abstract A photographic element comprising a support having a front side and a back side, an image forming layer on the front side of the support, a protective overcoat on the front side of the Support further removed from the support than the image forming layer, the protective overcoat comprising process surviving matte particles in a hydrophilic binder, the matte particles having a Rockwell hardness of less than M90, the back side of the support having a protective overcoat layer, the protective overcoat layer being the layer furthest removed from the back side of the support and comprising a hydrophobic material having a Delta haze less than 30%.
Inventors
- 👤 Yongcai Wang
- 👤 Alfred B. Fant
- 👤 Dennis E. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:39
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/95; G03C1/005; G03C1/06; G03C1/32; G03C1/7614; Y; Y10; Y10S; Y10S430/00; Y10S430/151; Y10S430/156; Y10S430/161
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
107 words
A photographic element comprising a support having a front side and a back side, an image forming layer on the front side of the support, a protective overcoat on the front side of the support further removed from the support than the image forming layer, the protective overcoat comprising process surviving matte particles in a hydrophilic binder, the matte particles having a Rockwell hardness of less than M90, the back side of the support having a protective overcoat layer, the protective overcoat layer being the layer furthest removed from the back side of the support and comprising a hydrophobic material having a Delta haze less than 30%.
Claim 2
Dependent Claim
107 words
A photographic element comprising a support having a front side and a back side, an image forming layer on the front side of the support, a protective overcoat on the front side of the support further removed from the support than the image forming layer, the protective overcoat comprising process surviving matte particles in a hydrophilic binder, the matte particles having a Rockwell hardness of less than M90, the back side of the support having a protective overcoat layer, the protective overcoat layer being the layer furthest removed from the back side of the support and comprising a hydrophobic material having a Delta haze less than 30%.
Claim 3
Dependent Claim
21 words
The photographic element of claim 1 wherein the protective overcoat on the front side of the support is the topmost layer.
Claim 4
Dependent Claim
20 words
The photographic element of claim 1 wherein the matte particles are composed of at least 40 mol percent styrenic monomers.
Claim 5
Dependent Claim
22 words
The photographic element of claim 1 wherein the protective overcoat on the front side of the support contains non-process surviving matte particles.
Claim 6
Dependent Claim
13 words
The photographic element of claim 1 wherein the hydrophobic material is a polymer.
Claim 7
Dependent Claim
19 words
The photographic element of claim 5 wherein the polymer is a polyurethane, polyester, polycarbonate, cellulose esters or acrylic polymers.
Claim 8
Dependent Claim
12 words
The photographic element of claim 6 wherein the polymer is a polyurethane.
Claim 9
Dependent Claim
13 words
The photographic element of claim 6 wherein the polymer is a cellulosic ester.
Claim 10
Dependent Claim
13 words
The photographic element of claim 6 wherein the polymer is an acrylic polymer.
Claim 11
Dependent Claim
19 words
The photographic element of claim 6 wherein the polymer is a mixture of an acrylic polymer and a polyurethane.
Claim 12
Dependent Claim
20 words
The photographic element of claim 1 wherein the protective layer on the backside of the support contains a conductive polymer.
Claim 13
Dependent Claim
21 words
The photographic element of claim 1 wherein the protective layer on the backside of the support contains a conductive metal oxide.
Claim 14
Dependent Claim
19 words
The photographic element of claim 1 wherein the protective layer on the backside of the support contains magnetic particles.
Claim 15
Dependent Claim
23 words
The photographic element of claim 1 wherein the protective layer on the backside of the support contains a polymer having a hydrophilic group.
Claim 16
Dependent Claim
18 words
The photographic element of claim 1 wherein the protective layer on the backside of the support is crosslinked.
Claim 17
Dependent Claim
12 words
The photographic element of claim 1 wherein the matte particles are crosslinked.
Claim 18
Dependent Claim
14 words
The photographic element of claim 1 wherein the matte particles have a hydrophilic group.
Claim 19
Dependent Claim
23 words
The photographic element of claim 1 wherein the hydrophilic binder is present in a coverage of from 0.3 to 2 g/m 2 .
Claim 20
Dependent Claim
23 words
The photographic element of claim 1 wherein the matte particles are present in a coverage of from 0.01 to 0.25 g/m 2 .
References Cited (Backward Citations)
US3976490A
Cited
US4275146A
Cited
US4287299A
Cited
US4582784A
Cited
US4623614A
Cited
US4873181A
Cited
US4866469A
Cited
US5057407A
Cited
US4855219A
Cited
US4975363A
Cited
US5104777A
Cited
US5061595A
Cited
US5175073A
Cited
US5227285A
Cited
EP0567118A2
Cited
US5310640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-07-16 | 2000-01-15 | 2000-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-16 | 2004-01-15 | 2004-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-16 | 2008-01-15 | 2008-07-16 | $7700.00 | Window Closed / Lapsed |