US3841880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide emulsion containing ketomethylene photographic color-forming couplers
Assignee: Eastman Kodak Co
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Filing: 1973-04-03
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Granted: 1974-10-15
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Expires: 1993-04-03
Abstract
Abstract This invention relates to photographic elements and to photographic emulsions and photographic color developer compositions that container certain color-forming couplers of the 1,2,4-benzothiadiazine-1,1-dioxide class having an open chain ketomethylene group on the carbon atom in the 3-position.
Inventors
- 👤 S Kertel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:31
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/15; C07D285/16; C07D285/18; C07D285/20; C07D285/22; C07D285/24; G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36; Y; Y10; Y10S; Y10S430/00; Y10S430/167
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
48 words
A LIGHT-SENSITIVE PHOTOGRAPHIC ELEMENT COMPRISING A PHOTOGRAPHIC SUPPORT HAVING COATED THEREON AT LEAST ONE PHOTOSENSITIVE SILVER HALIDE EMULSION LAYER CONTAINING AT LEAST ONE COLOR COUPLER CAPABLE OF FORMING A YELLOW DYE WHEN REACTED WITH OXIDIZED PRIMARY AMINO COLOR DEVELOPING AGENT, SAID COLOR COUPLER BEING REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
48 words
A LIGHT-SENSITIVE PHOTOGRAPHIC ELEMENT COMPRISING A PHOTOGRAPHIC SUPPORT HAVING COATED THEREON AT LEAST ONE PHOTOSENSITIVE SILVER HALIDE EMULSION LAYER CONTAINING AT LEAST ONE COLOR COUPLER CAPABLE OF FORMING A YELLOW DYE WHEN REACTED WITH OXIDIZED PRIMARY AMINO COLOR DEVELOPING AGENT, SAID COLOR COUPLER BEING REPRESENTED BY THE FORMULA:
Claim 3
Dependent Claim
48 words
A light-sensitive photographic element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing at least one color coupler capable of forming a yellow dye when reacted with oxidized primary amino color developing agent; said color coupler being represented by the formula:
Claim 4
Dependent Claim
48 words
A light-sensitive photographic element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing at least one color coupler capable of forming a yellow dye when reacted with oxidized primary amino color developing agent; said color coupler being represented by the formula:
Claim 5
Dependent Claim
29 words
A photographic element as in claim 2, wherein said element has the structure of formula (1) and Z is hydrogen, R is hydrogen and Y is an alkyl group.
Claim 6
Dependent Claim
35 words
A photographic element as in claim 2, wherein said element has the structure of formula (2) and Z is H or chlorine, R is H, R'' is H and R'''' is a substituted phenyl group.
Claim 7
Dependent Claim
30 words
A photographic element as in claim 2, wherein said element has the structure of formula (2) and n is O, R is H, R'' is H and R'''' is alkyl.
Claim 8
Dependent Claim
22 words
A photographic light-sensitive element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing 3-(carbethoxy) methyl-1,2,4-benzothiadiazine-1,1-dioxide.
Claim 9
Dependent Claim
22 words
A photographic light-sensitive element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing 3-(carbethoxy) methyl-1,2,4-benzothiadiazine-1,1-dioxide.
Claim 10
Dependent Claim
21 words
A photographic light-sensitive element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing 3-((4-ethoxyphenyl)carbamyl)methyl-1,2,4-benzothiadiazine-1,1-dioxide.
Claim 11
Dependent Claim
21 words
A photographic light-sensitive element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing 3-((4-ethoxyphenyl)carbamyl)methyl-1,2,4-benzothiadiazine-1,1-dioxide.
Claim 12
Dependent Claim
21 words
A photographic light-sensitive element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing 3-(carbethoxy)methyl-6-chloro-1,2,4-benzothiadiazine-1,1-dioxide.
Claim 13
Dependent Claim
21 words
A photographic light-sensitive element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing 3-(carbethoxy)methyl-6-chloro-1,2,4-benzothiadiazine-1,1-dioxide.
Claim 14
Dependent Claim
21 words
A photographic light-sensitive element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing 3-(phenylcarbamyl)methyl-6-chloro-1,2,4-benzothiadiazine-1,1-dioxide.
Claim 15
Dependent Claim
21 words
A photographic light-sensitive element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing 3-(phenylcarbamyl)methyl-6-chloro-1,2,4-benzothiadiazine-1,1-dioxide.
Claim 16
Dependent Claim
22 words
A photographic light-sensitive element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing 3-((2-chloro-5-methylphenyl)carbamyl)methyl-6-chloro-1,2,4-benzothiadiazine -1,1-dioxide.
Claim 17
Dependent Claim
22 words
A photographic light-sensitive element comprising a photographic support having coated thereon at least one photosensitive silver halide emulsion layer containing 3-((2-chloro-5-methylphenyl)carbamyl)methyl-6-chloro-1,2,4-benzothiadiazine -1,1-dioxide.
Claim 18
Dependent Claim
14 words
A light-sensitive silver halide emulsion containing a non-diffusible color coupler compound of the formula
Claim 19
Dependent Claim
14 words
A light-sensitive silver halide emulsion containing a non-diffusible color coupler compound of the formula
Claim 20
Dependent Claim
15 words
A light-sensitive, photographic silver halide emulsion containing a non-diffusible color coupler compound of the formula:
Claim 21
Dependent Claim
15 words
A light-sensitive, photographic silver halide emulsion containing a non-diffusible color coupler compound of the formula:
Claim 22
Dependent Claim
34 words
A light-sensitive, photographic silver halide emulsion as in claim 12, wherein said R'''' is a mono-substituted phenyl group or a di-substituted phenyl group in which the substituents are halo, alkyl, carboxyl or sulfonamido radicals.
Claim 23
Dependent Claim
15 words
A light-sensitive, photographic silver halide emulsion as in claim 12, wherein said R'''' is phenyl.
Claim 24
Dependent Claim
17 words
A light-sensitive, photographic silver halide emulsion as in claim 12, wherein said R'''' is an alkoxy group.
Claim 25
Dependent Claim
18 words
A light-sensitive, photographic silver halide emulsion as in claim 12, wherein said color coupler is 3-(carbethoxy) methyl-1, 2,4-benzothiadiazine-1,1-dioxide.
Claim 26
Dependent Claim
16 words
A light-sensitive, photographic silver halide emulsion as in claim 12, wherein said color coupler is 3-((4-ethoxyphenyl)carbamyl)methyl-1,2,4-benzothiadiazine-1,1-dioxide.
Claim 27
Dependent Claim
16 words
A light-sensitive, photographic silver halide emulsion as in claim 12, wherein said color coupler is 3-(carbethoxy)methyl-6-chloro-1,2,4-benzothiadiazine-1,1-dioxide.
Claim 28
Dependent Claim
16 words
A light-sensitIve, photographic silver halide emulsion as in claim 12, wherein said color coupler is 3-(phenylcarbamyl)methyl-6-chloro-1,2,4-benzothiadiazine-1,1-dioxide.
Claim 29
Dependent Claim
17 words
A light-sensitive, photographic silver halide emulsion as in claim 12, wherein said color coupler is 3-((2-chloro-5-methylphenyl)carbamyl)methyl-6-chloro-1,2,4-benzothiadiazine -1,1-dioxide.
Claim 30
Dependent Claim
82 words
A photographic element comprising a photographic support having coated thereon at least three emulsion layers containing photosensitive silver halide, each of said emulsion layers being sensitized to a different wavelength region of the visible spectrum, and one of said emulsion layers containing from about 25 to about 200 mg per square foot of said support of a ballasted, non-diffusible coupler compound capable of forming a yellow dye when reacted with 4-amino-3-methyl-N- Beta -(methane-sulfonamide) ethylaniline; said coupler compound being represented by the formula:
Claim 31
Dependent Claim
82 words
A photographic element comprising a photographic support having coated thereon at least three emulsion layers containing photosensitive silver halide, each of said emulsion layers being sensitized to a different wavelength region of the visible spectrum, and one of said emulsion layers containing from about 25 to about 200 mg per square foot of said support of a ballasted, non-diffusible coupler compound capable of forming a yellow dye when reacted with 4-amino-3-methyl-N- Beta -(methane-sulfonamide) ethylaniline; said coupler compound being represented by the formula:
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |