US3860428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide peptizers containing bis(thioether) linkages
Assignee: Eastman Kodak Co
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Filing: 1973-12-20
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Granted: 1975-01-14
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Expires: 1993-12-20
Abstract
Abstract An ethylenically unsaturated monomer containing bis-(thioether) linkages is polymerized with at least one additional monomer to yield polymers which are useful as silver halide peptizers and which are resistant to hydrolysis.
Inventors
- 👤 Ignazio S Ponticello
- 👤 Ernest J Perry
- 👤 Richard C Tuites
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:00
CPC Classifications
C; C08; C08F; C08F246/00; C08F228/00; C08F228/02; C08F228/04; G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/043
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
29 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING A PEPTIZER COMPRISING AN ADDITION INTERPOLYMER COMPRISING A. FROM ABOUT 1 TO ABOUT 20 MOLE PERCENT OF A POLYMERIZED MONOMER HAVING THE FORMULA
Claim 2
Dependent Claim
29 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING A PEPTIZER COMPRISING AN ADDITION INTERPOLYMER COMPRISING A. FROM ABOUT 1 TO ABOUT 20 MOLE PERCENT OF A POLYMERIZED MONOMER HAVING THE FORMULA
Claim 3
Dependent Claim
10 words
An emulsion as in claim 1 wherein R1 is alkyl.
Claim 4
Dependent Claim
10 words
An emulsion as in claim 1 wherein X is alkylene.
Claim 5
Dependent Claim
10 words
An emulsion as in claim 3 wherein R1 is alkyl.
Claim 6
Dependent Claim
13 words
An emulsion as in claim 1 wherein the polymerized monomer having the formula
Claim 7
Dependent Claim
10 words
An emulsion as in claim 5 wherein R1 is alkyl.
Claim 8
Dependent Claim
10 words
An emulsion as in claim 5 wherein X is alkylene.
Claim 9
Dependent Claim
10 words
An emulsion as in claim 7 wherein R1 is alkyl.
Claim 10
Dependent Claim
69 words
A photographic silver halide emulsion containing a peptizer comprising an addition interpolymer comprising A. from about 1 to about 20 mole percent of a polymerized monomer having the formula CH2 CH - S - (CH2)n - S - CH3 wherein n is an integer of from 1 to 10 inclusive; and B. from about 80 to about 99 mole percent of at least one additional polymerized ethylenically unsaturated monomer.
Claim 11
Dependent Claim
69 words
A photographic silver halide emulsion containing a peptizer comprising an addition interpolymer comprising A. from about 1 to about 20 mole percent of a polymerized monomer having the formula CH2 CH - S - (CH2)n - S - CH3 wherein n is an integer of from 1 to 10 inclusive; and B. from about 80 to about 99 mole percent of at least one additional polymerized ethylenically unsaturated monomer.
Claim 12
Dependent Claim
69 words
A photograhic silver halide emulsion containing a peptizer comprising an addition interpolymer comprising A. from about 1 to about 15 mole percent of a polymerized monomer having the formula CH2 CH - S - (CH2)n - S - CH3 wherein n is an integer of from 1 to 4 inclusive; and B. from about 85 to about 99 mole percent of at least one additional polymerized ethylenically unsaturated monomer.
Claim 13
Dependent Claim
69 words
A photograhic silver halide emulsion containing a peptizer comprising an addition interpolymer comprising A. from about 1 to about 15 mole percent of a polymerized monomer having the formula CH2 CH - S - (CH2)n - S - CH3 wherein n is an integer of from 1 to 4 inclusive; and B. from about 85 to about 99 mole percent of at least one additional polymerized ethylenically unsaturated monomer.
Claim 14
Dependent Claim
40 words
A photographic element comprising a support having coated thereon at least one photographic silver halide emulsion containing a peptizer comprising an addition interpolymer comprising A. from about 1 to about 20 mole percent of a polymerized monomer having the formula
Claim 15
Dependent Claim
40 words
A photographic element comprising a support having coated thereon at least one photographic silver halide emulsion containing a peptizer comprising an addition interpolymer comprising A. from about 1 to about 20 mole percent of a polymerized monomer having the formula
Claim 16
Dependent Claim
10 words
An element as in claim 11 wherein R1 is alkyl.
Claim 17
Dependent Claim
10 words
An element as in claim 11 wherein X is alkylene.
Claim 18
Dependent Claim
10 words
An element as in claim 13 wherein R1 is alkyl.
Claim 19
Dependent Claim
13 words
An element as in claim 11 wherein the polymerized monomer having the formula
Claim 20
Dependent Claim
10 words
An element as in claim 15 wherein R1 is alkyl.
Claim 21
Dependent Claim
10 words
An element as in claim 15 wherein X is alkylene.
Claim 22
Dependent Claim
10 words
An element as in claim 17 wherein R1 is alkyl.
Claim 23
Dependent Claim
80 words
A photographic element comprising a support having coated thereon at least one photographic silver halide emulsion containing a peptizer comprising an addition interpolymer comprising A. from about 1 to about 20 mole percent of a polymerized monomer having the formula CH2 CH - S - (CH2)n - S - CH3 wherein n is an integer of from 1 to 10, inclusive; and B. from about 80 to about 99 mole percent of at least one additional polymerized ethylenically unsaturated monomer.
Claim 24
Dependent Claim
80 words
A photographic element comprising a support having coated thereon at least one photographic silver halide emulsion containing a peptizer comprising an addition interpolymer comprising A. from about 1 to about 20 mole percent of a polymerized monomer having the formula CH2 CH - S - (CH2)n - S - CH3 wherein n is an integer of from 1 to 10, inclusive; and B. from about 80 to about 99 mole percent of at least one additional polymerized ethylenically unsaturated monomer.
Claim 25
Dependent Claim
80 words
A photographic element comprising a support having coated thereon at least one photographic silver halide emulsion containing a peptizer comprising an addition interpolymer comprising A. from about 1 to about 15 mole percent of a polymerized monomer having the formula CH2 CH - S - (CH2)n - S - CH3 wherein n is an integer of from 1 to 4, inclusive; and B. from about 85 to about 99 mole percent of at least one additional polymerized ethylenically unsaturated monomer.
Claim 26
Dependent Claim
80 words
A photographic element comprising a support having coated thereon at least one photographic silver halide emulsion containing a peptizer comprising an addition interpolymer comprising A. from about 1 to about 15 mole percent of a polymerized monomer having the formula CH2 CH - S - (CH2)n - S - CH3 wherein n is an integer of from 1 to 4, inclusive; and B. from about 85 to about 99 mole percent of at least one additional polymerized ethylenically unsaturated monomer.
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) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |