Patent US5451495A successfully refreshed from Google Patents.
US5451495A
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Recording element having a crosslinked polymeric layer
Assignee: Eastman Kodak Co
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Filing: 1994-08-15
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Granted: 1995-09-19
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Expires: 2014-08-15
Abstract
Abstract A recording element having at least one layer comprising a crosslinked polymer having polymeric backbone moieties and crosslinking moieties, the polymeric backbone moieties containing tertiary nitrogen atoms, the crosslinking moieties connecting polymeric backbone moieties at the teritary nitrogen atoms by conversion of the tertiary nitrogen atoms to quaternary amine, the crosslinking moiety having the structure ##STR1## where R' is independently alkyl or aryl and m is an integer of from 1 to 10.
Inventors
- 👤 Catherine A. Falkner
- 👤 John J. Fitzgerald
- 👤 Dennis J. Savage
- 👤 Paul D. Yacobucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:57
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/42; C08J; C08J3/00; C08J3/24; G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/76; G03C1/7614; G03C1/795; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/128; Y10S430/162
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
A photographic element comprising a support, at least one light-sensitive silver halide containing layer and a layer comprising a crosslinked polymer having polymeric backbone moieties and crosslinking moieties, the polymeric backbone moieties containing tertiary nitrogen atoms, the crosslinking moieties connecting polymeric backbone moieties at the tertiary nitrogen atoms by conversion of the tertiary nitrogen atoms to quaternary amine, the crosslinking moiety having the structure ##STR7## where R 1 is independently alkyl or aryl and m is an integer of from 1 to 10.
Claim 2
Dependent Claim
83 words
A photographic element comprising a support, at least one light-sensitive silver halide containing layer and a layer comprising a crosslinked polymer having polymeric backbone moieties and crosslinking moieties, the polymeric backbone moieties containing tertiary nitrogen atoms, the crosslinking moieties connecting polymeric backbone moieties at the tertiary nitrogen atoms by conversion of the tertiary nitrogen atoms to quaternary amine, the crosslinking moiety having the structure ##STR7## where R 1 is independently alkyl or aryl and m is an integer of from 1 to 10.
Claim 3
Dependent Claim
10 words
The photographic element of claim 1 wherein m is 1.
Claim 4
Dependent Claim
16 words
The photographic element of claim 1 wherein the tertiary nitrogen atoms are present in pendant groups.
Claim 5
Dependent Claim
14 words
The photographic element of claim 1 wherein the polymeric backbone moieties are polycondensation polymers.
Claim 6
Dependent Claim
14 words
The photographic element of claim 1 wherein the polymeric backbone moieties are polyaddition polymers.
Claim 7
Dependent Claim
13 words
The photographic element of claim 1 wherein the polycondensation polymers are polyurethane polymers.
Claim 8
Dependent Claim
22 words
The photographic element of claim 1 wherein the polyurethane polymers comprise a polymeric diol, a chain extending agent, and an organic diisocyanate.
Claim 9
Dependent Claim
15 words
The photographic element of claim 1 wherein the chain extending agent contains tertiary nitrogen atoms.
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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) | 1998-09-18 | 1999-03-20 | 1999-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-18 | 2003-03-20 | 2003-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-18 | 2007-03-20 | 2007-09-19 | $7700.00 | Window Closed / Lapsed |