US3900322A Expired / Lapsed US ⏱️ 0.0 years remaining

Diffusion transfer color photographic material having developement inhibitor precursor

Assignee: Fujifilm Holdings Corp

•

Filing: 1972-10-11

•

Granted: 1975-08-19

•

Expires: 1992-10-11

📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A diffusion transfer color photographic material having improved color separating power and giving transferred color images having improved density comprising a support having thereon at least two layers each containing a dye developer and at least two silver halide photographic emulsion layers, at least one of which contains a compound represented by general formula WHEREIN Q represents an atomic group necessary for forming an unsubstituted or substituted heterocyclic ring and R represents an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group, or a heterocyclic group.

Inventors

👤 Yasushi Oishi
👤 Jun Hayashi
👤 Yoshinobu Yoshida

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-10-31 20:13

CPC Classifications

C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/70; C07D215/00; C07D215/02; C07D215/16; C07D215/36; C07D233/00; C07D233/04; C07D233/28; C07D233/30; C07D233/42; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/28; C07D263/00; C07D263/52; C07D263/54; C07D263/58; C07D277/00; C07D277/02; C07D277/08; C07D277/12; C07D277/16; C07D277/20; C07D277/32; C07D277/36; C07D277/56; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/72; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; C07D285/125; C07D293/00; C07D293/02; C07D293/04; C07D293/06; C07D293/10; C07D293/12; G; G03; G03C; G03C8/00; G03C8/02

Claims Analysis

Total Claims: 14

Claim 1

Independent Claim 49 words

A DIFFUSION TRANSFER COLOR PHOTOGRAPHIC MATERIAL COMPRISING A SUPPORT HAVING THEREON AT LEAST TWO LAYERS EACH CONTAINING A DYE DEVELOPER, AND HAVING THEREON AT LEAST TWO SILVER HALIDE PHOTOGRAPHIC EMULSION LAYER, AT LEAST ONE OF SAID SLIVER HALIDE PHOTOGRAPHIC EMULSION LAYERS CONTAINING A COMPOUND REPRESENTED BY GENERAL FORMULA I

Claim 2

Dependent Claim 49 words

Claim 3

Dependent Claim 24 words

The diffusion transfer color photographic material as set forth in claim 1 wherein said compound is a compound represented by the general formula Ia

Claim 4

Dependent Claim 27 words

The diffusion transfer color photographic material as set forth in claim 1 wherein said compoUnd of general formula I is a compound represented by general formula Ib

Claim 5

Dependent Claim 27 words

The diffusion transfer color photographic material as set forth in claim 1 wherein said compound of general formula I is a compound represented by general formula Ic

Claim 6

Dependent Claim 38 words

The diffusion transfer color photographic material as set forth in claim 1 wherein said compound of general formula I is contained in an amount of 0.006-2.5 g per mole of silver halide in said silver halide emulsion layer.

Claim 7

Dependent Claim 118 words

The diffusion transfer color photographic material as set forth in claim 1 wherein said layers containing dye developers are a layer containing cyan dye developer, a layer containing a magenta dye developer, and a layer containing a yellow dye developer; said silver halide photographic emulsion layers are a red-sensitive emulsion layer, a green-sensitive emulsion layer, and a blue-sensitive emulsion layer, said red-sensitive emulsion layer being the lowermost silver halide emulsion layer; said cyan developer layer is disposed adjacent to the red-sensitive emulsion layer at the support side, said magenta dye developer layer adjacent to the green-sensitive emulsion layer at the support side, and said yellow dye developer layer adjacent to said blue-sensitive emulsion layer at the support side.

Claim 8

Dependent Claim 116 words

The diffusion transfer color photographic material as set forth in claim 1 wherein said heterocyclic ring represented by group Q of general formula I is a thiazolidine-2-thion ring, an imidazolidine-2-thion ring, a selenazolidine-2-thion ring, a 1,3, 4-thidiazoline-2-thion ring, a 1,3,4-selenadiazoline-2-thion ring, a 4-thiazoline-2-thion ring, a 4-selenazoline-2-thion ring, a 1,2-dihydropyridine-2-thion ring, a benzthiazoline-2-thion ring, a benzoxazoline-2-thion ring, a benzimidazoline-2-thion ring, a benzselenazoline-2-thion ring, or a 1,2-dihydroquinoline-2-thion ring and R is an alkyl group having 1-6 carbon atoms, an alkyl group having 1-6 carbon atoms substituted by a hydroxyl group, an aryl group, a morpholino group; an aryl group substituted by an alkyl group, an alkoxyl group, a halogen atom, or a 2-pyridyl, tetrazolyl, thiazolyl or triazolyl group.

Claim 9

Dependent Claim 28 words

The diffusion transfer color photographic material as set forth in claim 1 wherein said dye developer is 5,8-dihydroxy-1,4-bis( Beta -hydroquinonyl- Alpha -methyl)-ethylamino)-anthraquinone, 4-propoxy-2-(p-( Beta -hydroxyquinonylethyl)phenylazo)-1-naphthol, or N-n-hexylcarboxyamido-4-(p-(2'',5''-dihydroxyphenylethyl)phenylazo)-5 -pyrazolone.

Claim 10

Dependent Claim 24 words

The diffusion transfer color photographic material of claim 2 wherein A and B are selected from the group consisting of methyl, phenyl and ethoxycarbonyl.

Claim 11

Dependent Claim 61 words

The diffusion transfer color photographic material of claim 2 wherein R'' and R'''' represent an alkyl group having 1-6 carbon atoms, an alkyl group having 1-6 carbon atoms substituted by a hydroxyl group, an aryl group, a morpholino group; an aryl group substituted by an alkyl group, an alkoxyl group, a halogen atom, or a 2-pyridyl, tetrazolyl, thiazolyl or triazolyl group.

Claim 12

Dependent Claim 61 words

The diffusion transfer color photographic material of claim 3 wherein R'' and R'''' represent an alkyl group having 1-6 carbon atoms, an alkyl group having 1-6 carbon atoms substituted by a hydroxyl group, an aryl group, a morpholino group; an aryl group substituted by an alkyl group, an alkoxyl group, a halogen atom, or a 2-pyridyl, tetrazolyl, thiazolyl or triazolyl group.

Claim 13

Dependent Claim 59 words

The diffusion transfer color photographic material of claim 4 where R'' represents an alkyl group having 1-6 carbon atoms, an alkyl group having 1-6 carbon atoms substituted by a hydroxyl group, an aryl group, a morpholino group; an aryl group substituted by an alkyl group, an alkoxyl group, a halogen atom, or a 2-pyridyl, tetrazolyl, thiazolyl or triazolyl group.

Claim 14

Dependent Claim 39 words

The diffusion transfer color photographic material as set forth in claim 1 wherein said compound of general formula I is contained in an amount of 0.01 to 0.1 per mole of silver halide in said silver halide emulsion layer.

References Cited (Backward Citations)

US3265498A Cited

US3260597A Cited

US3114637A Cited

US3202512A Cited

US3330657A Cited

US3723125A Cited

US3736136A Cited

US3674478A Cited

US3698898A Cited

US3785813A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-08-18	1979-02-17	1979-08-19	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-08-18	1983-02-17	1983-08-19	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-08-18	1987-02-17	1987-08-19	$7700.00	Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag

Select Category

Notes (Optional)