Patent US2409786A successfully refreshed from Google Patents.
Patent US4032518A successfully refreshed from Google Patents.
US4032518A
Expired / Lapsed
US
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Sulfonamide compounds and polymers derived therefrom
Assignee: Eastman Kodak Co
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Filing: 1975-01-16
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Granted: 1977-06-28
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Expires: 1995-01-16
Abstract
Abstract Novel N-(vinylphenyl)sulfonamides and polymers thereof including copolymers of N-(vinylphenyl)sulfonamides and styrene are prepared by reacting 4-vinylaniline with an amine and a sulfonyl chloride in the presence of an acid acceptor to produce the monomer to be polymerized. The homo- and copolymers of these N-(vinylphenyl)sulfonamides are useful as vesiculating matrices in vesicular elements.
Inventors
- 👤 Carl Kotlarchik, Jr.
- 👤 Louis M. Minsk
- 👤 George L. Fletcher, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:55
CPC Classifications
C; C08; C08F; C08F12/00; C08F12/02; C08F12/04; C08F12/14; C08F12/30
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
74 words
A polymer having as at least one repeating unit: ##STR4## wherein R is selected from the group consisting of alkyl containing from 1 to 10 carbon atoms and aryl containing from 6 to 10 carbon atoms, said polymer having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 2
Dependent Claim
74 words
A polymer having as at least one repeating unit: ##STR4## wherein R is selected from the group consisting of alkyl containing from 1 to 10 carbon atoms and aryl containing from 6 to 10 carbon atoms, said polymer having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 3
Dependent Claim
29 words
A copolymer having a λ max no greater than about 350 nm in the spectral range of 200 to 750 nm and comprising the repeating units of claim 1.
Claim 4
Dependent Claim
42 words
The copolymer of claim 2 containing at least 70 mole percent of the repeating units: ##STR5## wherein R is selected from the group consisting of alkyl containing from 1 to 10 carbon atoms and aryl containing from 6 to 10 carbon atoms.
Claim 5
Dependent Claim
16 words
The copolymer as defined in claim 3 wherein R is selected from haloalkyl, halophenyl and tolyl.
Claim 6
Dependent Claim
16 words
The polymer as defined in claim 1 wherein R is selected from haloalkyl, halophenyl and tolyl.
Claim 7
Dependent Claim
92 words
A homopolymer having a λmax no greater than about 350 nm in the spectral range of 200 to 750 nm and having repeating units having the formula: ##STR6## wherein R is selected from the group consisting of alkyl containing from 1 to 10 carbon atoms and aryl containing from 6 to 10 carbon atoms, said homopolymer having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 8
Dependent Claim
92 words
A homopolymer having a λmax no greater than about 350 nm in the spectral range of 200 to 750 nm and having repeating units having the formula: ##STR6## wherein R is selected from the group consisting of alkyl containing from 1 to 10 carbon atoms and aryl containing from 6 to 10 carbon atoms, said homopolymer having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 9
Dependent Claim
16 words
The homopolymer as defined in claim 6 wherein R is selected from haloalkyl, halophenyl and tolyl.
Claim 10
Dependent Claim
73 words
A copolymer having repeating units having the formula: ##STR7## wherein R is selected from the group consisting of alkyl containing from 1 to 10 carbon atoms and aryl containing from 6 to 10 carbon atoms, said copolymer having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 11
Dependent Claim
73 words
A copolymer having repeating units having the formula: ##STR7## wherein R is selected from the group consisting of alkyl containing from 1 to 10 carbon atoms and aryl containing from 6 to 10 carbon atoms, said copolymer having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 12
Dependent Claim
16 words
The copolymer as defined in claim 8 wherein R is selected from haloalkyl, halophenyl and tolyl.
Claim 13
Dependent Claim
65 words
A homopolymer having a λmax no greater than about 350 nm in the spectral range of 200 to 750 nm and having repeating units having the formula: ##STR8## and having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 14
Dependent Claim
65 words
A homopolymer having a λmax no greater than about 350 nm in the spectral range of 200 to 750 nm and having repeating units having the formula: ##STR8## and having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 15
Dependent Claim
65 words
A homopolymer having a λmax no greater than about 350 nm in the spectral range of 200 to 750 nm and having repeating units having the formula: ##STR9## and having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 16
Dependent Claim
65 words
A homopolymer having a λmax no greater than about 350 nm in the spectral range of 200 to 750 nm and having repeating units having the formula: ##STR9## and having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 17
Dependent Claim
46 words
A copolymer having repeating units having the formula: ##STR10## and having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 18
Dependent Claim
46 words
A copolymer having repeating units having the formula: ##STR10## and having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 19
Dependent Claim
46 words
A copolymer having repeating units having the formula: ##STR11## and having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
Claim 20
Dependent Claim
46 words
A copolymer having repeating units having the formula: ##STR11## and having a molecular weight of about 800,000 to about 1,200,000 and an inherent viscosity at 25° C. at a concentration of 0.25 gram of polymer per deciliter of solution in N,N-dimethylformamide of from 1 to 1.9.
References Cited (Backward Citations)
US2699392A
Cited
US3234190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |