US4394440A
Expired / Lapsed
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Yellow-dye-forming photographic developing composition
Assignee: Eastman Kodak Co
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Filing: 1982-01-22
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Granted: 1983-07-19
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Expires: 2002-01-22
Abstract
Abstract A yellow-dye-forming photographic developing composition having improved stability comprises a haloacetanilide coupler, such as alpha-pivalyl-alpha-(4-carboxyphenoxy)-2,4-dichloroacetanilide, an N-alkyl-N-alkoxyalkyl-p-phenylenediamine developing agent, such as 4-amino-N-ethyl-N-(2-methoxyethyl)-m-toluidine di-p-toluene sulfonate, and a 4,4-disubstituted-1-aryl-3-pyrazolidinone, such as 4,4-dimethyl-1-phenyl-3-pyrazolidinone.
Inventors
- 👤 Carl R. Cappel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:31
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/407; G03C7/413
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
183 words
A yellow-dye-forming photographic developing composition comprising (1) a haloacetanilide coupler of the formula ##STR8## wherein R is a branched alkyl group of 3 to 6 carbon atoms, X is Cl or Br, Y is X, hydrogen or alkyl of 1 to 8 carbon atoms, and A and B differ and are either H or COOM where M is a photographically inactive cation or a methyl or ethyl group; (2) an N-alkyl-N-alkoxyalkyl-p-phenylene-diamine develoing agent of the formula ##STR9## wherein n is an integer having a value of from 2 to 4, R 1 is alkyl of from 1 to 4 carbon atoms, and R 2 is alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms; and (3) a 4,4-disubstituted-1-aryl-3-pyrazolidinone balancing developing agent of the formula ##STR10## wherein R 3 and R 4 are the same or different and each is alkyl of 1 to 6 carbon atoms or hydroxyalkyl of 1 to 6 carbon atoms, and R 5 is hydrogen, halogen, alkyl of 1 to 6 carbon atoms, or alkoxy of 1 to 6 carbon atoms.
Claim 2
Dependent Claim
183 words
A yellow-dye-forming photographic developing composition comprising (1) a haloacetanilide coupler of the formula ##STR8## wherein R is a branched alkyl group of 3 to 6 carbon atoms, X is Cl or Br, Y is X, hydrogen or alkyl of 1 to 8 carbon atoms, and A and B differ and are either H or COOM where M is a photographically inactive cation or a methyl or ethyl group; (2) an N-alkyl-N-alkoxyalkyl-p-phenylene-diamine develoing agent of the formula ##STR9## wherein n is an integer having a value of from 2 to 4, R 1 is alkyl of from 1 to 4 carbon atoms, and R 2 is alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms; and (3) a 4,4-disubstituted-1-aryl-3-pyrazolidinone balancing developing agent of the formula ##STR10## wherein R 3 and R 4 are the same or different and each is alkyl of 1 to 6 carbon atoms or hydroxyalkyl of 1 to 6 carbon atoms, and R 5 is hydrogen, halogen, alkyl of 1 to 6 carbon atoms, or alkoxy of 1 to 6 carbon atoms.
Claim 3
Dependent Claim
12 words
A yellow-dye-forming photographic developing composition comprising 4-amino-N-ethyl-N-(2-methoxyethyl)-m-toluidine di-p-toluene sulfonate, alpha-pivalyl-alpha-(4-carboxyphenoxy)-2,4-dichloroacetanilide, and 4,4-dimethyl-1-phenyl-3-pyrazolidinone.
Claim 4
Dependent Claim
12 words
A yellow-dye-forming photographic developing composition comprising 4-amino-N-ethyl-N-(2-methoxyethyl)-m-toluidine di-p-toluene sulfonate, alpha-pivalyl-alpha-(4-carboxyphenoxy)-2,4-dichloroacetanilide, and 4,4-dimethyl-1-phenyl-3-pyrazolidinone.
Claim 5
Dependent Claim
12 words
A yellow-dye-forming photographic developing composition comprising 4-amino-N-ethyl-N-(2-methoxyethyl)-m-toluidine di-p-toluene sulfonate, alpha-pivalyl-alpha-(4-carboxyphenoxy)-2,4-dichloroacetanilide, and 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidinone.
Claim 6
Dependent Claim
12 words
A yellow-dye-forming photographic developing composition comprising 4-amino-N-ethyl-N-(2-methoxyethyl)-m-toluidine di-p-toluene sulfonate, alpha-pivalyl-alpha-(4-carboxyphenoxy)-2,4-dichloroacetanilide, and 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidinone.
Claim 7
Dependent Claim
221 words
An aqueous alkaline yellow-dye-forming photographic developing solution comprising from about 1 to about 4 grams per liter of a haloacetanilide coupler of the formula ##STR11## wherein R is a branched alkyl group of 3 to 6 carbon atoms, X is Cl or Br, Y is X, hydrogen or alkyl of 1 to 8 carbon atoms, and A and B differ and are either H or COOM where M is a photographically inactive cation or a methyl or ethyl group; from about 1 to about 4 grams per liter of an N-alkyl-N-alkoxyalkyl-p-phenylenediamine developing agent of the formula ##STR12## wherein n is an integer having a value of from 2 to 4, R 1 is alkyl of from 1 to 4, R 1 is alkyl of from 1 to 4 carbon atoms, and R 2 is alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms; and from about 0.2 to about 0.8 grams per liter of a 4,4-disubstituted-1-aryl-3-pyrazolidinone balancing developing agent of the formula ##STR13## wherein R 3 and R 4 are the same or different and each is alkyl of 1 to 6 carbon atoms or hydroxyalkyl of 1 to 6 carbon atoms, and R 5 is hydrogen, halogen, alkyl of 1 to 6 carbon atoms, or alkoxy of 1 to 6 carbon atoms.
Claim 8
Dependent Claim
221 words
An aqueous alkaline yellow-dye-forming photographic developing solution comprising from about 1 to about 4 grams per liter of a haloacetanilide coupler of the formula ##STR11## wherein R is a branched alkyl group of 3 to 6 carbon atoms, X is Cl or Br, Y is X, hydrogen or alkyl of 1 to 8 carbon atoms, and A and B differ and are either H or COOM where M is a photographically inactive cation or a methyl or ethyl group; from about 1 to about 4 grams per liter of an N-alkyl-N-alkoxyalkyl-p-phenylenediamine developing agent of the formula ##STR12## wherein n is an integer having a value of from 2 to 4, R 1 is alkyl of from 1 to 4, R 1 is alkyl of from 1 to 4 carbon atoms, and R 2 is alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms; and from about 0.2 to about 0.8 grams per liter of a 4,4-disubstituted-1-aryl-3-pyrazolidinone balancing developing agent of the formula ##STR13## wherein R 3 and R 4 are the same or different and each is alkyl of 1 to 6 carbon atoms or hydroxyalkyl of 1 to 6 carbon atoms, and R 5 is hydrogen, halogen, alkyl of 1 to 6 carbon atoms, or alkoxy of 1 to 6 carbon atoms.
Claim 9
Dependent Claim
32 words
A developing solution as claimed in claim 4 wherein said haloacetanilide coupler is alpha-pivalyl-alpha-(4-carboxyphenoxy)-2,4-dichloroacetanilide, said N-alkyl-N-alkoxyalkyl-p-phenylenediamine developing agent is 4-amino-N-ethyl-N-(2-methoxyethyl)-m-toluidine di-p-toluene sulfonate, and said 4,4-disubstituted-1-aryl-3-pyrazolidinone balancing developing agent is 4,4-dimethyl-1-phenyl-3-pyrazolidinone or 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidinone.
Claim 10
Dependent Claim
206 words
In a method of reversal color processing of a photographic element in which said element is developed in a yellow-dye-forming photographic developing solution, the improvement wherein said solution comprises (1) a haloacetanilide coupler of the formula ##STR14## wherein R is a branched alkyl group of 3 to 6 carbon atoms, X is Cl or Br, Y is X, hydrogen or alkyl of 1 to 8 carbon atoms, and A and B differ and are either H or COOM where M is a photographically inactive cation or a methyl or ethyl group; (2) an N-alkyl-N-alkoxyalkyl-p-phenylenediamine developing agent of the formula ##STR15## wherein n is an integer having a value of from 2 to 4, R 1 is alkyl of from 1 to 4 carbon atoms, and R 2 is alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms; and (3) a 4,4-disubstituted-1-aryl-3-pyrazolidinone balancing developing agent of the formula ##STR16## wherein R 3 and R 4 are the same or different and each is alkyl of 1 to 6 carbon atoms or hydroxyalkyl of 1 to 6 carbon atoms, and R 5 is hydrogen, halogen, alkyl of 1 to 6 carbon atoms, or alkoxy of 1 to 6 carbon atoms.
Claim 11
Dependent Claim
206 words
In a method of reversal color processing of a photographic element in which said element is developed in a yellow-dye-forming photographic developing solution, the improvement wherein said solution comprises (1) a haloacetanilide coupler of the formula ##STR14## wherein R is a branched alkyl group of 3 to 6 carbon atoms, X is Cl or Br, Y is X, hydrogen or alkyl of 1 to 8 carbon atoms, and A and B differ and are either H or COOM where M is a photographically inactive cation or a methyl or ethyl group; (2) an N-alkyl-N-alkoxyalkyl-p-phenylenediamine developing agent of the formula ##STR15## wherein n is an integer having a value of from 2 to 4, R 1 is alkyl of from 1 to 4 carbon atoms, and R 2 is alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms; and (3) a 4,4-disubstituted-1-aryl-3-pyrazolidinone balancing developing agent of the formula ##STR16## wherein R 3 and R 4 are the same or different and each is alkyl of 1 to 6 carbon atoms or hydroxyalkyl of 1 to 6 carbon atoms, and R 5 is hydrogen, halogen, alkyl of 1 to 6 carbon atoms, or alkoxy of 1 to 6 carbon atoms.
Claim 12
Dependent Claim
32 words
An improved method as claimed in claim 6 wherein said haloacetanilide coupler is alpha-pivalyl-alpha-(4-carboxyphenoxy)-2,4-dichloroacetanilide, said N-alkyl-N-alkoxyalkyl-p-phenylenediamine developing agent is 4-amino-N-ethyl-N-(2-methoxyethyl)-m-toluidine di-p-toluene sulfonate, and said 4,4-disubstituted-1-aryl-3-pyrazolidinone balancing developing agent is 4,4-dimethyl-1-phenyl-3-pyrazolidinone or 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidinone.
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) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |