Patent US370436A successfully refreshed from Google Patents.
Patent US4014700A successfully refreshed from Google Patents.
US4014700A
Expired / Lapsed
US
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Furan containing azo dye developers
Assignee: Fujifilm Holdings Corp
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Filing: 1974-11-22
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Granted: 1977-03-29
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Expires: 1994-11-22
Abstract
Abstract A yellow dye developer having improved photographic properties represented by the formula (I) ##STR1## wherein X represents a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, an alkyl group having 1 to 4 carbon atoms, an acylamino group having 1 to 4 carbon atoms; Z represents an atomic group necessary for completing a furan ring or a benzofuran ring; Y represents a hydroxyl group, an acyloxy group having 1 to 4 carbon atoms, or an alkoxyacyloxy group having 2 to 4 carbon atoms; Ar represents an aromatic ring; R 1 represents a hydrogen atom, a halogen atom, an acyl group having 1 to 4 carbon atoms, or an alkyl group having 1 to 5 carbon atoms; R 2 represents a hydroxyl group, an acyloxy group having 1 to 4 carbon atoms, or an alkoxyacyloxy group having 2 to 4 carbon atoms with the R 2 group being at the ortho-position to the azo group; m and n each is an integer of 1 to 4; and at least one of X, Z, Ar and R 1 being bonded to a polyhydric phenol moiety directly or through an atom or a divalent group; and a photographic material containing the dye developer.
Inventors
- 👤 Shinsaku Fujita
- 👤 Yukio Maekawa
- 👤 Kazuya Sano
- 👤 Seiki Sakanoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:39
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/77; C07D307/78; C07D307/79; C07D307/81; G; G03; G03C; G03C8/00; G03C8/02; G03C8/08; G03C8/10; G03C8/12; G03C8/14; G03C8/16; G03C8/18
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
213 words
A light-sensitive material for the diffusion transfer process comprising a support having coated thereon a blue-sensitive silver halide emulsion and an associated yellow dye developer represented by the following formula (I) ##STR6## wherein X represents a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, an alkyl group having 1 to 4 carbon atoms, or an acylamino group having 1 to 4 carbon atoms; Z represents an atomic group necessary for completing a furan ring or benzofuran ring; Y represents a hydroxyl group, an acyloxy group having 1 to 4 carbon atoms or an alkoxyacyloxy group having 2 to 4 carbon atoms; Ar represents an aromatic ring R 1 represents a hydrogen atom, a halogen atom, an acyl group having 1 to 4 carbon atoms, or an alkyl group having 1 to 5 carbon atoms; R 2 represents a hydroxyl group, an acyloxy group having 1 to 4 carbon atoms, or an alkoxyacyloxy group having 2 to 4 carbon atoms; R 2 being at the ortho-position to the azo group; and m and n each represents an integer of 1 to 4; at least one of said Z and Ar being bonded directly or through an atom or divalent group to a polyhydric phenol moiety having a silver halide development activity.
Claim 2
Dependent Claim
213 words
A light-sensitive material for the diffusion transfer process comprising a support having coated thereon a blue-sensitive silver halide emulsion and an associated yellow dye developer represented by the following formula (I) ##STR6## wherein X represents a hydrogen atom, a halogen atom, a nitro group, a hydroxyl group, an alkyl group having 1 to 4 carbon atoms, or an acylamino group having 1 to 4 carbon atoms; Z represents an atomic group necessary for completing a furan ring or benzofuran ring; Y represents a hydroxyl group, an acyloxy group having 1 to 4 carbon atoms or an alkoxyacyloxy group having 2 to 4 carbon atoms; Ar represents an aromatic ring R 1 represents a hydrogen atom, a halogen atom, an acyl group having 1 to 4 carbon atoms, or an alkyl group having 1 to 5 carbon atoms; R 2 represents a hydroxyl group, an acyloxy group having 1 to 4 carbon atoms, or an alkoxyacyloxy group having 2 to 4 carbon atoms; R 2 being at the ortho-position to the azo group; and m and n each represents an integer of 1 to 4; at least one of said Z and Ar being bonded directly or through an atom or divalent group to a polyhydric phenol moiety having a silver halide development activity.
Claim 3
Dependent Claim
26 words
The light-sensitive material as claimed in claim 1 wherein said yellow dye developer is positioned at the exposure side to said blue-sensitive silver halide emulsion layer.
Claim 4
Dependent Claim
38 words
The light-sensitive material as claimed in claim 1, wherein said blue-sensitive silver halide emulsion and the said yellow dye developer are present in the same layer and said blue-sensitive silver halide emulsion is capable of being spectrally sensitized.
Claim 5
Dependent Claim
25 words
The light-sensitive material as claimed in claim 1, further including a container retaining a processing solution for the light-sensitive material and containing a light-reflecting agent.
Claim 6
Dependent Claim
15 words
The light-sensitive material as claimed in claim 4, wherein said light-reflecting agent is titanium dioxide.
Claim 7
Dependent Claim
55 words
The light-sensitive material as claimed in claim 6, further including an image-receiving element for the dye images transferred on development of said light-sensitive material, said image-receiving element including a mordant layer with a neutralizing rate controlling layer and a neutralizing layer on the side of said mordant layer opposite said light-sensitive silver halide emulsion layer.
Claim 8
Dependent Claim
16 words
The light-sensitive material as claimed in claim 6, wherein the mordanting agent has a poly-4-vinylpyridine structure.
Claim 9
Dependent Claim
35 words
The light-sensitive material as claimed in claim 1, wherein the silver halide emulsion layer is shielded from light with a light-intercepting agent so that the material can be processed outside a camera in the light.
Claim 10
Dependent Claim
15 words
The light-sensitive material as claimed in claim 8, wherein the light-intercepting agent is carbon powder.
Claim 11
Dependent Claim
19 words
The light-sensitive material as claimed in claim 1, wherein said yellow dye developer is α-(2-acetoxy-5-hydroquinonylmethylphenylazo)-β-acetoxy-β-(2'-benzofuranyl)acrylonitrile, α-(2-acetoxy-5-hydroquinonylmethylphenylazo)-β-acetoxy-β-(3'-methyl-2'-benzofuranyl)acrylonitrile, α-(2-hydroxy-5-hydroquinonylmethylphenylazo-β-(2'-benzofuranyl)-β-hydroxyacrylonitrile, or α-2-hydroxy-5-hydroquinonylmethylphenylazo)-β-(3'-methyl-2'-benzofuranyl)-β-hydroxyacrylonitrile.
Claim 12
Dependent Claim
33 words
The light-sensitive material as claimed in claim 1, further including a green-sensitive silver halide emulsion and an associated magenta dye developer and a red-sensitive silver halide emulsion and an associated cyan dye developer.
Claim 13
Dependent Claim
255 words
The light-sensitive material as claimed in claim 1, wherein said halogen atom is a chlorine atom or a bromine atom, wherein said alkyl group having 1 to 4 carbon atoms is a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a sec-butyl group or a t-butyl group, wherein said acylamino group having 1 to 4 carbon atoms is an acetylamino group, a propionylamino group, or a butyrylamino group, wherein said acyloxy group having 1 to 4 carbon atoms is an acetyloxy group, a propionyloxy group or a butyryloxy group, wherein said alkoxyacyloxy group having 2 to 4 carbon atoms is a methoxyacetyloxy group, wherein said aromatic ring for Ar is a benzene ring or a naphthalene ring, wherein said alkyl group having 1 to 5 carbon atoms is a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a t-butyl group, a sec-amyl group, or a t-amyl group, wherein said polyhydric phenol moiety is a hydroquinonyl group, a 2,5-dihydroxyphenyl group, an ortho-dihydroxyphenyl group, or an acylated derivative thereof and wherein said atom or divalent group if .sub.[S--, --NHCO--, (CH 2 ) p S (CH 2 ) q wherein p and q each represent 0 or a positive integer and p + q is less than 6, (CH 2 ) p (SO 2 (CH 2 ) q wherein p and q each have the same meaning as defined above and an alkylene group containing 1 to 6 carbon atoms.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |