Patent US4353979A successfully refreshed from Google Patents.
US4353979A
Expired / Lapsed
US
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Light-sensitive silver halide photographic materials
Assignee: Konica Minolta Inc
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Filing: 1980-07-16
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Granted: 1982-10-12
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Expires: 2000-07-16
Abstract
Abstract A silver halide photographic material containing a solution of a 5-pyrazolone type magneta coupler and a high-boiling organic solvent of the formula: <IMAGE> wherein R1, R2 and R3 each represent an aliphatic or aromatic group with a carbon atom of R3 directly bonded to the phosphorus atom.
Inventors
- 👤 Sadatugu Terada
- 👤 Hideaki Arai
- 👤 Kenji Itoh
- 👤 Hiroshi Sugita
- 👤 Katsumi Matsuura
- 👤 Thuneo Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:19
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/388; G03C7/3885; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
71 words
A silver halide photographic material having a support and a hydrophilic colloidal layer coated thereon, said hydrophilic colloidal layer containing a solution of (a) a 5-pyrazolone type magenta coupler; and (b) a high-boiling organic solvent having the general formula [I]: ##STR30## wherein R 1 , R 2 and R 3 each represent an aliphatic or aromatic group and a carbon atom of R 3 is bonded directly to the phosphorus atom.
Claim 2
Dependent Claim
71 words
A silver halide photographic material having a support and a hydrophilic colloidal layer coated thereon, said hydrophilic colloidal layer containing a solution of (a) a 5-pyrazolone type magenta coupler; and (b) a high-boiling organic solvent having the general formula [I]: ##STR30## wherein R 1 , R 2 and R 3 each represent an aliphatic or aromatic group and a carbon atom of R 3 is bonded directly to the phosphorus atom.
Claim 3
Dependent Claim
71 words
A silver halide photographic material having a support and a hydrophilic colloidal layer coated thereon, said hydrophilic colloidal layer containing a solution of (a) an aldehyde-bis 5-pyrazolone type magenta coupler (b) a high-boiling organic solvent having the general formula [I]: ##STR31## wherein R 1 , R 2 and R 3 each represent an aliphatic or armomatic group and a carbon atom of R 3 is bonded directly to the phosphorus atom.
Claim 4
Dependent Claim
71 words
A silver halide photographic material having a support and a hydrophilic colloidal layer coated thereon, said hydrophilic colloidal layer containing a solution of (a) an aldehyde-bis 5-pyrazolone type magenta coupler (b) a high-boiling organic solvent having the general formula [I]: ##STR31## wherein R 1 , R 2 and R 3 each represent an aliphatic or armomatic group and a carbon atom of R 3 is bonded directly to the phosphorus atom.
Claim 5
Dependent Claim
20 words
The silver halide photographic material of claim 1 or 2 wherein said solvent is dispersed in the hydrophilic colloidal layer.
Claim 6
Dependent Claim
58 words
The silver halide photographic material of claim 1 or 2 wherein R 1 , R 2 and R 3 , which may be the same or different, each represent an alkyl or aryl group, and the sum of carbon atoms of R 1 , R 2 , and R 3 is in the range from 6 to 50.
Claim 7
Dependent Claim
28 words
The silver halide photographic material of claim 3, wherein the substituent R 3 has a carbonyloxy- carbonamido- containing group or an alkoxyalkyl, aryloxyalkyl, alkoxyaryl, arylalkyl or acylalkyl group.
Claim 8
Dependent Claim
87 words
A process for incorporating an oil-soluble photographic additive into a hydrophilic colloidal solution for forming a photographic colloidal layer, comprising the steps of: (a) dissolving the oil-soluble photographic additive in a high-boiling organic solvent having the general formula [I]: ##STR32## wherein R 1 , R 2 and R 3 each represents an aliphatic or aromatic group, and a carbon atom of R 3 is bonded directly to the phosphorus atom, to obtain a first solution; and (b) thereafter incorporating said first solution into said hydrophilic colloidal solution.
Claim 9
Dependent Claim
87 words
A process for incorporating an oil-soluble photographic additive into a hydrophilic colloidal solution for forming a photographic colloidal layer, comprising the steps of: (a) dissolving the oil-soluble photographic additive in a high-boiling organic solvent having the general formula [I]: ##STR32## wherein R 1 , R 2 and R 3 each represents an aliphatic or aromatic group, and a carbon atom of R 3 is bonded directly to the phosphorus atom, to obtain a first solution; and (b) thereafter incorporating said first solution into said hydrophilic colloidal solution.
Claim 10
Dependent Claim
16 words
The process of claim 6 wherein said first solution is dispersed in said hydrophilic colloidal solution.
Claim 11
Dependent Claim
25 words
The process of claim 6 wherein said oil-soluble additive is a coupler, a DIR compound, a UV-absorbing agent, a photofading inhibitor or an anti-staining agent.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-11 | 1986-04-12 | 1986-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-11 | 1990-04-12 | 1990-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-11 | 1994-04-12 | 1994-10-12 | $7700.00 | Window Closed / Lapsed |