Patent US4374924A successfully refreshed from Google Patents.
US4374924A
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US
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Antistatic silver halide photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1982-02-24
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Granted: 1983-02-22
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Expires: 2002-02-24
Abstract
Abstract A silver halide photographic light-sensitive material having at least one antistatic layer, said antistatic layer containing a dispersion of polymer represented by the following formula (I): ##STR1## wherein A represents a monomer unit formed from a copolymerizable monomer having at least two ethylenically unsaturated groups, B represents a monomer unit formed from a copolymerizable and monoethylenically unsaturated monomer, R 1 represents a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms, Q represents a divalent group containing 1 to 12 carbon atoms, R 2 , R 3 and R 4 may be the same or different and each represents an alkyl group containing 1 to 20 carbon atoms, or an aralkyl group containing 7 to 20 carbon atoms, or R 2 , R 3 and R 4 may combine to form a ring together with the nitrogen atom, X.sup.⊖ represents an anion, x is about 0.25 to 10 mol%, y is about 0 to 90 mol%, and z is about 10 to 99 mol%.
Inventors
- 👤 Shigeki Yokoyama
- 👤 Shinzo Kishimoto
- 👤 Itsuki Toriya
- 👤 Taku Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:32
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/89
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
218 words
A silver halide photographic light-sensitive material having at least one antistatic layer of low surface electric resistance, good adhesion and which does not suffer from scum during development as an outermost backing layer, said antistatic layer containing a dispersion of a polymer represented by the following formula (I): ##STR18## wherein A represents a monomer unit formed from a copolymerizable monomer having at least two ethylenically unsaturated groups, B represents a monomer unit formed from a copolymerizable and monethylenically unsaturated monomer, R 1 represents a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms, Q represents a divalent group containing 1 to 12 carbon atoms, wherein Q is selected from the class consisting of --O--R 6 and --NH--R 6 --, wherein R 6 is an alkylene group containing 1 to 6 carbon atoms, R 2 , R 3 and R 4 may be the same or different and each represents an alkyl group containing 1 to 20 carbon atoms, or an aralkyl group containing 7 to 20 carbon atoms, or R 2 , R 3 and R 4 may combine to form a ring together with the nitrogen atom, X.sup.⊖ represents an anion, x is about 0.25 to 10 mol%, y is about 0 to 90 mol%, and z is about 10 to 99 mol%.
Claim 2
Dependent Claim
218 words
A silver halide photographic light-sensitive material having at least one antistatic layer of low surface electric resistance, good adhesion and which does not suffer from scum during development as an outermost backing layer, said antistatic layer containing a dispersion of a polymer represented by the following formula (I): ##STR18## wherein A represents a monomer unit formed from a copolymerizable monomer having at least two ethylenically unsaturated groups, B represents a monomer unit formed from a copolymerizable and monethylenically unsaturated monomer, R 1 represents a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms, Q represents a divalent group containing 1 to 12 carbon atoms, wherein Q is selected from the class consisting of --O--R 6 and --NH--R 6 --, wherein R 6 is an alkylene group containing 1 to 6 carbon atoms, R 2 , R 3 and R 4 may be the same or different and each represents an alkyl group containing 1 to 20 carbon atoms, or an aralkyl group containing 7 to 20 carbon atoms, or R 2 , R 3 and R 4 may combine to form a ring together with the nitrogen atom, X.sup.⊖ represents an anion, x is about 0.25 to 10 mol%, y is about 0 to 90 mol%, and z is about 10 to 99 mol%.
Claim 3
Dependent Claim
20 words
The silver halide photographic light-sensitive material of claim 1, wherein R 1 represents a hydrogen atom or a methyl group.
Claim 4
Dependent Claim
22 words
The silver halide photographic light-sensitive material of claim 1, wherein A represents a monomer unit formed from divinylbenzene or ethylene glycol dimethacrylate.
Claim 5
Dependent Claim
21 words
The silver halide photographic light-sensitive material of claim 1, wherein B represents a monomer unit formed from styrene or cyclohexyl methacrylate.
Claim 6
Dependent Claim
20 words
The silver halide photographic light-sensitive material of claim 1, wherein the layer containing said polymer dispersion is a backing layer.
Claim 7
Dependent Claim
22 words
The silver halide photographic light-sensitive material of claim 1, wherein the layer containing said polymer dispersion overcoats a silver halide emulsion layer.
Claim 8
Dependent Claim
26 words
The silver halide photographic light-sensitive material of claim 1, wherein said dispersion is coated in an amount of about 0.01 to 1.0 g/m 2 as solids.
Claim 9
Dependent Claim
32 words
The silver halide photographic light-sensitive material of claim 1, wherein A is derived from a monomer of the formula: ##STR19## wherein n is 2 to 3 and Y is a linking group.
Claim 10
Dependent Claim
39 words
The silver halide photographic light-sensitive material of claim 1, wherein A is formed from a monomer selected from the group consisting of divinylbenzene, ethylene glycol dimethacrylate, isopropylene glycol dimethacrylate, neopentyl glycol dimethacrylate, tetramethylene glycol diacrylate and tetramethylene glycol dimethacrylate.
Claim 11
Dependent Claim
36 words
The silver halide photographic light-sensitive material of claim 1, wherein B is a monomer unit formed from an α-olefin, monoethylenically unsaturated esters of aliphatic acid, ethylenically unsaturated mono- or dicarboxylic acid esters and amides, or acrylonitrile.
Claim 12
Dependent Claim
24 words
The silver halide photographic light-sensitive material of claim 1, wherein B is formed from styrene, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate or cyclohexyl methacrylate.
Claim 13
Dependent Claim
32 words
The silver halide photographic light-sensitive material of claim 1, wherein X - represents a halide ion, an alkylsulfate ion, an alkyl or aryl sulfonate ion, an acetate ion, or a sulfate ion.
Claim 14
Dependent Claim
16 words
The silver halide photographic light-sensitive material of claim 1, wherein X - represents a chloride ion.
Claim 15
Dependent Claim
32 words
The silver halide photographic light-sensitive material of claim 1, wherein x is about 1 to 7 mol%, y is about 0 to 50 mol% and z is about 40 to 99 mol%.
Claim 16
Dependent Claim
36 words
The silver halide photographic light-sensitive material of claim 1, wherein said antistatic layer additionally contains a binder selected from the group consisting of gelatin, polyvinyl alcohol, cellulose acetate, cellulose acetate phthalate, polyvinyl formal and polyvinyl butyral.
Claim 17
Dependent Claim
20 words
The silver halide photographic light-sensitive material of claim 1, wherein said antistatic layer additionally contains a fluorine-containing surface active agent.
Claim 18
Dependent Claim
17 words
The silver halide photographic light-sensitive material of claim 1, wherein said antistatic layer contains a matting agent.
Claim 19
Dependent Claim
21 words
The silver halide light-sensitive material of claim 1, wherein said polymer is selected from the group consisting of copolymers 1-10: ##STR20##
Claim 20
Dependent Claim
23 words
The silver halide light-sensitive material of claim 1, wherein said backing layer is on the side of the support opposite any emulsion layer.
Claim 21
Dependent Claim
15 words
The silver halide photographic light-sensitive material of claim 1, wherein Q is --O--R 6 --.
Claim 22
Dependent Claim
15 words
The silver halide photographic light-sensitive material of claim 1, wherein Q is --NH--R 6 --.
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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) | 1986-02-21 | 1986-08-23 | 1987-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-21 | 1990-08-23 | 1991-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-21 | 1994-08-23 | 1995-02-22 | $7700.00 | Window Closed / Lapsed |