Patent US3647459A successfully refreshed from Google Patents.
US3647459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel photographic elements and means for rapid processing of photographic elements
Assignee: Eastman Kodak Co
•
Filing: 1968-02-01
•
Granted: 1972-03-07
•
Expires: 1988-02-01
Abstract
Abstract A photographic element comprising an acrylic interpolymer can be rapidly processed at high temperatures to provide an image record exhibiting reduced haze and improved photographic properties. The acrylic interpolymer contained in the photographic element is compatible with gelatin and has a Tg of less than 20* C. In another aspect of this invention, a photographic element comprising an acrylic interpolymer and a development modifier exhibit improved photographic properties.
Inventors
- 👤 Robert C Taber
- 👤 William H Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:37
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C1/00; G03C1/005; G03C1/04; G03C1/053; G03C1/06; G03C1/08; G03C1/10
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
13 words
An emulsion according to claim 1 wherein said development modifier is a mercaptotetrazole.
Claim 2
Dependent Claim
13 words
An emulsion according to claim 1 wherein said development modifier is a nitroindazole.
Claim 3
Dependent Claim
25 words
An emulsion according to claim 1 wherein said development modifier is a nitroazole or mercaptoazole having a 5 membered heterocyclic ring containing a nitrogen atom.
Claim 4
Dependent Claim
15 words
An emulsion according to claim 1 wherein said development modifier is a carboxy substituted 1-phenyl-5-mercaptotetrazole.
Claim 5
Dependent Claim
12 words
An emulsion according to claim 1 wherein said development modifier is 1-(3,5-dicarboxyphenyl)-5-mercaptotetrazole.
Claim 6
Dependent Claim
15 words
The emulsion of claim 1 wherein the interpolymer is copoly (butyl acrylate-sodium acryloyloxypropane sulfonate-2-acetoacetoxyethyl methacrylate).
Claim 7
Dependent Claim
13 words
The emulsion of claim 1 wherein the interpolymer is copoly (methyl acrylate-sulfopropyl acrylate).
Claim 8
Dependent Claim
13 words
The emulsion of claim 1 wherein the interpolymer is copoly (methyl acrylate-sulfopropylacerylate-2-acetoacetoxy-ethyl methacrylate).
Claim 9
Dependent Claim
16 words
The emulsion of claim 1 wherein the interpolymer is copoly (methyl acrylate-3-acryloyloxy-1-methyl propane-1-sulfonic acid, sodium salt).
Claim 10
Dependent Claim
14 words
The emulsion of claim 1 wherein the interpolymer is copoly (ethyl acrylate-acrylic acid-2-acetoacetoxyethyl methacrylate).
Claim 11
Dependent Claim
14 words
The emulsion of claim 1 wherein the interpolymer is copoly (butyl acrylate-acrylic acid-2-cyanoacetixtethyl methacrylate).
Claim 12
Dependent Claim
21 words
The emulsion of claim 1 wherein the interpolymer is copoly (butyl acrylate-sodium acryloyloxypropane sulfonate-2-acetoacetoxyethyl methacrylate) and the development modifier is 5-nitroindazole.
Claim 13
Dependent Claim
35 words
The emulsion of claim 1 wherein the interpolymer is a mixture of copoly (ethyl acrylate-acrylic acid-2-acetoacetoxyethyl methacrylate) and copoly (butyl acrylate-sodium acryloyloxypropane sulfonate-2-acetoacetoxyethyl methacrylate), and the development modifier is a mixture of 5-nitroindazole and 1-phenyl-5-mercaptotetrazole.
Claim 14
Dependent Claim
20 words
The emulsion of claim 1 wherein the interpolymer is copoly (ethyl acrylate-acrylic acid-2-acetoacetoxyethyl methacrylate) and the development modifier is 1-phenyl-5-mercapto-tetrazole.
Claim 15
Dependent Claim
20 words
The emulsion of claim 1 wherein the interpolymer is copoly (ethyl acrylate-acrylic acid-2-acetoacetoxyethyl methylacrylate) and the development modifier is 1-(3,5-dicarboxyphenyl)-5-mercaptotetrazole.
Claim 16
Dependent Claim
23 words
The emulsion of claim 1 wherein the interpolymer is copoly (butyl acrylate-sodium acryloyloxypropane sulfonate-2-acetoacetoxyethyl methacrylate) and the development modifier is sodium anthraquinone sulfonate.
Claim 17
Dependent Claim
12 words
The emulsion according to claim 1 wherein the development modifier is 5nitroindazole.
Claim 18
Dependent Claim
12 words
The emulsion according to claim 1 wherein the development modifier is 1-phenyl-5-mercaptotetrazole.
Claim 19
Dependent Claim
14 words
The emulsion according to claim 1 wherein the development modifier is sodium anthraquinone sulfonate.
Claim 20
Dependent Claim
12 words
The emulsion according to claim 1 wherein the development modifier is 5-chlorobenzotriazole.
Claim 21
Dependent Claim
12 words
The emulsion according to claim 1 wherein the development modifier is 5-methyl-1,2,3-benzotriazole.
Claim 22
Dependent Claim
12 words
The emulsion according to claim 1 wherein the development modifier is 3-mercaptobenzothiazole.
Claim 23
Dependent Claim
12 words
The emulsion according to claim 1 wherein the development modifier is 5-carbethoxy-3-(3-carbethoxypropyl)-4-methyl-4-thiazoline-2-thione.
Claim 24
Dependent Claim
12 words
The emulsion according to claim 1 wherein the development modifier is 3-mercapto-1,2,4-triazole.
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |