US4291113A
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US
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Method for dispersing photographic additives
Assignee: Fujifilm Holdings Corp
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Filing: 1980-02-21
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Granted: 1981-09-22
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Expires: 2000-02-21
Abstract
Abstract A method for dispersing an oil-soluble photographic additive into water or a hydrophilic colloid composition wherein an oil-soluble photographic additive is dispersed in water or a hydrophilic colloid composition in the presence of a polymer having a recurring unit represented by the following formula (I): -(A)x- -(B)y-(I) wherein A represents an ethylenically unsaturated monomer containing a sulfonic acid group; B represents a copolymerizable ethylenically unsaturated monomer; x is about 10 to 100 mol%; and y is about 0 to 90 mol%.
Inventors
- 👤 Junji Minamizono
- 👤 Masakazu Yoneyama
- 👤 Jun Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:18
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/388; G03C7/3882
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
146 words
A method for dispersing an oil-soluble photographic additive into water or a hydrophilic colloid composition wherein an oil-soluble photographic additive is dispersed in water or a hydrophilic colloid composition in the presence of a polymer having a recurring unit represented by the following general formula (I): --(A).sub.x --o--(B).sub.y -- (I) wherein A represents a monomer unit of the formula (II): ##STR19## wherein R represents a hydrogen atom or a methyl group; m represents 0 or 1; M represents a cation; and X represents an alkylene group having 1 to 4 carbon atoms, an arylene group, an aralkylene group having 7 to 11 carbon atoms or a --CO--NH--Y-- group where Y is an alkylene group having 1 to 6 carbon atoms or a phenylene group; B represents a copolymerizable ethylenically unsaturated monomer; x is about 10 to 100 mol%; and y is about 0 to 90 mol%.
Claim 2
Independent Claim
146 words
A method for dispersing an oil-soluble photographic additive into water or a hydrophilic colloid composition wherein an oil-soluble photographic additive is dispersed in water or a hydrophilic colloid composition in the presence of a polymer having a recurring unit represented by the following general formula (I): --(A).sub.x --o--(B).sub.y -- (I) wherein A represents a monomer unit of the formula (II): ##STR19## wherein R represents a hydrogen atom or a methyl group; m represents 0 or 1; M represents a cation; and X represents an alkylene group having 1 to 4 carbon atoms, an arylene group, an aralkylene group having 7 to 11 carbon atoms or a --CO--NH--Y-- group where Y is an alkylene group having 1 to 6 carbon atoms or a phenylene group; B represents a copolymerizable ethylenically unsaturated monomer; x is about 10 to 100 mol%; and y is about 0 to 90 mol%.
Claim 3
Dependent Claim
14 words
The method of claim 1, wherein said additive is an oil-soluble photographic color coupler.
Claim 4
Dependent Claim
12 words
The method of claim 1, wherein said additive is an oil-soluble antioxidant.
Claim 5
Dependent Claim
18 words
The method of claim 1, wherein said additive is a dye precursor for a color diffusion transfer process.
Claim 6
Dependent Claim
14 words
The method of claim 1, wherein said additive is an oil-soluble UV absorbing agent.
Claim 7
Dependent Claim
20 words
The method of claim 1, wherein an anionic surface active agent and/or a nonionic surface active agent is also present.
Claim 8
Dependent Claim
53 words
The method of claim 6, wherein said anionic surface active agent is an anionic surface active agent having in its molecular structure a hydrophobic moiety containing from 8 to 30 carbon atoms and an --SO 3 M or --OSO 3 M group wherein M represents an alkali metal atom or an ammonium group.
Claim 9
Dependent Claim
19 words
The method of claim 1, wherein said monomer forming B is styrene, vinyl acetate, n-butyl acrylate or n-octyl acrylate.
Claim 10
Dependent Claim
20 words
The method of claim 1, wherein said additive is dissolved in an organic solvent and dispersed in a hydrophilic colloid.
Claim 11
Dependent Claim
26 words
The method of claim 9, wherein said solvent is substantially immiscible in water and has a boiling point of at least 190° C. at atmospheric pressure.
Claim 12
Dependent Claim
25 words
The method of claim 9, wherein in addition to said high boiling solvent a solvent having a boiling point less than 130° C. is present.
Claim 13
Dependent Claim
155 words
In a method for preparing a photographic material, wherein an oil-soluble photographic additive is dispersed in water or a hydrophilic colloid composition the improvement which comprises dispersing said oil-soluble photographic additive in water or a hydrophilic colloid composition in the presence of a polymer having a recurring unit represented by the following general formula (I): --(A).sub.x --o--(B).sub.y -- (I) wherein A represents a monomer unit of the formula (II): ##STR20## wherein R represents a hydrogen atom or a methyl group; m represents 0 or 1; M represents a cation; and X represents an alkylene group having 1 to 4 carbon atoms, an arylene group, an aralkylene group having 7 to 11 carbon atoms or a --CO--NH--Y-- group where Y is an alkylene group having 1 to 6 carbon atoms or a phenylene group; B represents a copolymerizable ethylenically unsaturated monomer; x is about 10 to 100 mol%; and y is about 0 to 90 mol%.
Claim 14
Dependent Claim
155 words
In a method for preparing a photographic material, wherein an oil-soluble photographic additive is dispersed in water or a hydrophilic colloid composition the improvement which comprises dispersing said oil-soluble photographic additive in water or a hydrophilic colloid composition in the presence of a polymer having a recurring unit represented by the following general formula (I): --(A).sub.x --o--(B).sub.y -- (I) wherein A represents a monomer unit of the formula (II): ##STR20## wherein R represents a hydrogen atom or a methyl group; m represents 0 or 1; M represents a cation; and X represents an alkylene group having 1 to 4 carbon atoms, an arylene group, an aralkylene group having 7 to 11 carbon atoms or a --CO--NH--Y-- group where Y is an alkylene group having 1 to 6 carbon atoms or a phenylene group; B represents a copolymerizable ethylenically unsaturated monomer; x is about 10 to 100 mol%; and y is about 0 to 90 mol%.
Claim 15
Dependent Claim
14 words
The method of claim 12, wherein said additive is an oil-soluble photographic color coupler.
Claim 16
Dependent Claim
12 words
The method of claim 12, wherein said additive is an oil-soluble antioxidant.
Claim 17
Dependent Claim
18 words
The method of claim 12, wherein said additive is a dye precursor for a color diffusion transfer process.
Claim 18
Dependent Claim
14 words
The method of claim 12, wherein said additive is an oil-soluble UV absorbing agent.
Claim 19
Dependent Claim
20 words
The method of claim 12, wherein an anionic surface active agent and/or a nonionic surface active agent is also present.
Claim 20
Dependent Claim
53 words
The method of claim 17, wherein said anionic surface active agent is an anionic surface active agent having in its molecular structure a hydrophobic moiety containing from 8 to 30 carbon atoms and an --SO 3 M or --OSO 3 M group wherein M represents an alkali metal atom or an ammonium group.
Claim 21
Dependent Claim
19 words
The method of claim 12, wherein said monomer forming B is styrene, vinyl acetate, n-butyl acrylate or n-octyl acrylate.
Claim 22
Dependent Claim
20 words
The method of claim 12, wherein said additive is dissolved in an organic solvent and dispersed in a hydrophilic colloid.
Claim 23
Dependent Claim
26 words
The method of claim 20, wherein said solvent is substantially immiscible in water and has a boiling point of at least 190° C. at atmospheric pressure.
Claim 24
Dependent Claim
25 words
The method of claim 20, wherein in addition to said high boiling solvent a solvent having a boiling point less than 130° C. in present.
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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) | 1984-09-21 | 1985-03-23 | 1985-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-21 | 1989-03-23 | 1989-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-21 | 1993-03-23 | 1993-09-22 | $7700.00 | Window Closed / Lapsed |