US3652284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic silver halide emulsion containing a methine dye
Assignee: Eastman Kodak Co
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Filing: 1968-11-04
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Granted: 1972-03-28
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Expires: 1988-11-04
Abstract
Abstract Novel methine dyes are provided which feature a bis(alkylsulfonyl)allylidene (or -pentadienylidene) group or a diaryloxysulfonyl allylidene (or -pentadienylidene group. The dyes are useful as filter dyes in photographic materials. Certain dyes of the invention function as spectral sensitizers for photographic silver halide emulsions.
Inventors
- 👤 Gene L Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:48
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83; G03C1/832; C; C09; C09B; C09B23/00; C09B23/0008; C09B23/0033
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
36 words
A photographic element comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one non-sensitive layer containing a methine dye selected from those represented by one of the following formulas:
Claim 2
Dependent Claim
104 words
A photographic element comprising a support having thereon at least one light-sensitive silver halide emulsion layer, and at least one non-sensitive layer containing a methine dye represented by the following formula: wherein n and m each represents a positive integer of from 1 to 2; L represents a methine linkage; R1 represents a member selected from the group consisting of an alkyl group and an aryl group; R2 and R3 each represents an alkyl group; and Z represents the non-metallic atoms necessary to complete a heterocyclic nucleus of the type used in cyanine dyes containing from five to six atoms in the heterocyclic ring.
Claim 3
Dependent Claim
104 words
A photographic element comprising a support having thereon at least one light-sensitive silver halide emulsion layer, and at least one non-sensitive layer containing a methine dye represented by the following formula: wherein n and m each represents a positive integer of from 1 to 2; L represents a methine linkage; R1 represents a member selected from the group consisting of an alkyl group and an aryl group; R4 and R5 each represents an aryl group; and Z1 represents the non-metallic atoms necessary to complete a heterocyclic nucleus of the type used in cyanine dyes containing from five to six atoms in the heterocyclic ring.
Claim 4
Dependent Claim
52 words
A photographic element comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one non-sensitive layer containing a methine dye selected from the group consisting of 2-(3,3-bis(methylsulfonyl)allylidene)-3-ethylbenzothiozoline; 2-(3,3-bis(methylsulfonyl)allylidene)-3-ethylbenzoxazoline; 2-(3,3-bis(methylsulfonyl)allylidene)-3-methylthiazolidine; 2-(3,3-bis(heptylulfonyl)allylidene)-3-ethylbenzoxazoline; 3-ethyl-2-(3, 3-diphenoxysulfonylallylidene)benzothiazoline; 3-ethyl-2-(3,3-diphenoxysulfonylallylidene)benzoxazoline; 3-methyl-2-(3,3-diphenoxysulfonylallylidene)thiazolidine; 1-ethyl-2-(3,3-diphenoxysulfonylallylidene)naphtho(1,2-d)-thiazoline; 1-ethyl-4-(3,3-diphenoxysulfonylallylidene)-1,4-dihydroquinoline; 2-(5,5-bis(methylsulfonyl)-2,4-pentadienylidene)-3-ethylbenzothiazoline; 3-ethyl-2-(5,5-diphenoxysulfonyl-2,4-pentadienylidene)benzothiazoline; bis(bis(methylsulfonyl)-methane)trimethine oxonol salt and bis(diphenyl methanedisulfonate)trimethine oxonol salt.
Claim 5
Dependent Claim
69 words
A light-sensitive photographic silver halide emulsion containing a methine dye represented by the following formula: wherein n represents the positive integer 1; m represents a positive integer of from 1 to 2; R1 represents a member selected from the group consisting of an alkyl group and an aryl group; R2 and R3 each represents an alkyl group; and Z represents the non-metallic atoms necessary to complete a thiazole group.
Claim 6
Dependent Claim
24 words
A photographic emulsion in accordance with claim 6 wherein said Z of said dye represents the non-metallic atoms necessary to complete a benzothiazole nucleus.
Claim 7
Dependent Claim
29 words
A photographic emulsion in accordance with claim 6 wherein said m is 2 and said Z of said dye represents the non-metallic atoms necessary to complete a thiazolidine nucleus.
Claim 8
Dependent Claim
18 words
A photographic emulsion in accordance with claim 6 wherein said Z of said dye represents a naptho-thiazole nucleus.
Claim 9
Dependent Claim
30 words
A light-sensitive photographic silver halide emulsion containing a methine dye selected from the group consisting of 2-(3,3-bis(methylsulfonyl)allylidene)-3-ethylbenzothiazoline; 2-(3, 3-bis(methylsulfonyl)allylidene)-3-ethylbenzoxazoline; 2-(3,3-bis (methylsulfonyl)allylidene)-3-methylthiazolidine; 2-(3,3-bis(heptylsufonyl)allylidene)-3-ethylbenzoxazoline: 3-ethyl-2-(3, 3-diphenoxysulfonylallylidene)benzothiazoline; 3-ethyl-2-(3,3-diphenoxysulfonylallylidene)benzoxazoline; 3-methyl-2-(3,3-diphenoxysulfonylallylidene)thiazolidine; 1-ethyl2-(3,3-diphenoxysulfonylallylidene)-naphtho(1,2-d)thiazoline; 1-ethyl-4-(3,3-diphenoxysulfonyl-allylidene)-1,4-dihydroquinoline; and 2-(5,5-bis(methylsulfonyl)-2,4-pentadienylidene)-3-ethylbenzothiazoline.
Claim 10
Dependent Claim
17 words
A photographic element comprising a support having thereon a layer containing a photographic emulsion of claim 6.
Claim 11
Dependent Claim
17 words
A photographic element comprising a support having thereon a layer containing a photographic emulsion of claim 7.
Claim 12
Dependent Claim
17 words
A photographic element comprising a support having thereon a layer containing a photographic emulsion of claim 8.
Claim 13
Dependent Claim
17 words
A photographic element comprising a support having thereon a layer containing a photographic emulsion of claim 9.
Claim 14
Dependent Claim
17 words
A photographic element comprising a support having thereon a layer containing a photographic emulsion of claim 10.
Claim 15
Dependent Claim
9 words
A photographic silver halide emulsion spectrally sensitized with 2-(3,3-bis(methylsulfonyl)allylidene)-3-ethylbenzothiazoline.
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) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |