Patent US5001571A successfully refreshed from Google Patents.
Patent US4495275A successfully refreshed from Google Patents.
US4495275A
Expired / Lapsed
US
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Silver halide photographic materials
Assignee: Fujifilm Holdings Corp
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Filing: 1981-06-25
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Granted: 1985-01-22
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Expires: 2001-06-25
Abstract
Abstract The antistatic property of a silver halide photographic material is effectively improved by incorporating a fluorine-containing water-soluble polymer having a styrene monomer containing a fluorine-containing group as the polymerization unit in at least one of the photographic layers of the photographic material. The incorporation of the polymer does not reduce the adhesion resistance or film strength of the photographic material. The photographic material can also maintain the improved antistatic property for a long period of time.
Inventors
- 👤 Shigeki Yokoyama
- 👤 Kunihiko Ohga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:30
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/38; G03C1/385; C; C08; C08F; C08F12/00; C08F12/02; C08F12/04; C08F12/14; G03C1/04; G03C1/053
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
275 words
A silver halide photographic element, comprising: a support; a plurality of photographic layers on the support including at least one silver halide emulsion layer, wherein one of said layers comprises a water-soluble polymer having a recurring unit represented by following general formula (I) ##STR10## wherein A represents a monomer unit formed by copolymerizing a copolymerizable monomer having at least one ethylenically unsaturated group; R 1 represents hydrogen, a halogen atom, or an alkyl group having 1 to 3 carbon atoms; R 2 can represent a monovalent substituent, and when l is more than one, two R 2 groups together can represent an atomic group forming a ring; R f represents an alkyl group having 1 to 30 carbon atoms, an aralkyl group, an aryl group, or an alkylaryl group, wherein at least four hydrogens have been substituted for by fluorine atoms; X represents a divalent coupling group shown by --(R) p --L-- (wherein R represents an alkylene group, an arylene group, or an aralkylene group; L represents an oxy group, a thioxy group, an imino group, a carbonyl group, a carboxy group, a carbothioxy group, a carboxyamido group, an oxycarbonyl group, a carbamoyl group, a sulfone group, a sulfonamido group, an N-alkylsulfonamido group, a sulfamoyl group, a sulfoxy group, or a phosphate group; and p is 0 or 1); l is an integer of 0 to 4; m is an integer of 0 to 3; n is an integer of 1 to 5; x is 0.1 to 50 mol%; and y is 50 to to 99.9 mol%, said water-soluble polymer being present in an amount sufficient to increase antistatic properties and provide good adhesion resistance.
Claim 2
Dependent Claim
275 words
A silver halide photographic element, comprising: a support; a plurality of photographic layers on the support including at least one silver halide emulsion layer, wherein one of said layers comprises a water-soluble polymer having a recurring unit represented by following general formula (I) ##STR10## wherein A represents a monomer unit formed by copolymerizing a copolymerizable monomer having at least one ethylenically unsaturated group; R 1 represents hydrogen, a halogen atom, or an alkyl group having 1 to 3 carbon atoms; R 2 can represent a monovalent substituent, and when l is more than one, two R 2 groups together can represent an atomic group forming a ring; R f represents an alkyl group having 1 to 30 carbon atoms, an aralkyl group, an aryl group, or an alkylaryl group, wherein at least four hydrogens have been substituted for by fluorine atoms; X represents a divalent coupling group shown by --(R) p --L-- (wherein R represents an alkylene group, an arylene group, or an aralkylene group; L represents an oxy group, a thioxy group, an imino group, a carbonyl group, a carboxy group, a carbothioxy group, a carboxyamido group, an oxycarbonyl group, a carbamoyl group, a sulfone group, a sulfonamido group, an N-alkylsulfonamido group, a sulfamoyl group, a sulfoxy group, or a phosphate group; and p is 0 or 1); l is an integer of 0 to 4; m is an integer of 0 to 3; n is an integer of 1 to 5; x is 0.1 to 50 mol%; and y is 50 to to 99.9 mol%, said water-soluble polymer being present in an amount sufficient to increase antistatic properties and provide good adhesion resistance.
Claim 3
Dependent Claim
23 words
A photographic element as in claim 1, wherein the polymer having the recurring unit represented by formula (I) is in the surface layer.
Claim 4
Dependent Claim
142 words
A photographic element as in claim 1, comprising: a support; a plurality of photographic layers on the support, wherein one of said layers comprising a water-soluble polymer having a recurring unit represented by formula (II) ##STR11## wherein A 1 is a monomeric unit wherein a copolymerizable monomer having an ethylenically unsaturated group and a solubility of at least 10 g per 100 g water is copolymerized; B is a monomeric unit wherein a copolymerizable monomer having an ethylenically unsaturated group and soluble in an amount of less than 10 g in 100 g of water is copolymerized; R 1 , R 2 , R f , X, l, m and n have the same meaning as in formula (I) in claim 1; x is 0.1 to 50 mol%, y 1 is 20 to 99.9 mol%, and z is 0 to 79.9 mol%.
Claim 5
Dependent Claim
14 words
A photographic element as in claim 3, wherein A 1 is water-soluble nonionic monomer.
Claim 6
Dependent Claim
14 words
A photographic element as in claim 3, wherein A 1 is acrylamide or methacrylamide.
References Cited (Backward Citations)
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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) | 1988-01-22 | 1988-07-23 | 1989-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-22 | 1992-07-23 | 1993-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-22 | 1996-07-23 | 1997-01-22 | $7700.00 | Window Closed / Lapsed |