US3775126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive element comprising a coating layer containing a mixture of a cationic perfluorinated alkyl and an alkylphenoxypoly(propylene oxide)
Assignee: Eastman Kodak Co
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Filing: 1972-02-29
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Granted: 1973-11-27
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Expires: 1992-02-29
Abstract
Abstract A combination of improved coatability plus better control of static electricity can result from using a mixture of (a) a certain type of cationic perfluorinated alkyl surfactant such as perfluorooctylsulfonamido-(N-propyl-3-N,N,N-trimethyl) ammonium iodide plus (b) a certain type of alkylphenoxypoly-(propylene oxide) such as p-nonylphenoxy decaglycidol as a coating aid in the application of fluid coatings upon the surface(s) of radiation sensitive film elements. The presence of a polymeric binder such as gelatin in the coating composition is desirable. Synergistic coating results are obtained when a coating composition containing the mixture is applied to light sensitive layers that are troublesome to simultaneously overcoat because they contain materials that are extremely surface active.
Inventors
- 👤 J Babbitt
- 👤 J Houle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:39
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/38; G03C1/385; G03C1/76; G03C1/85
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
22 words
A radiation sensitive element as in claim 1, wherein said mixture is in at least one external surface layer of said element.
Claim 2
Dependent Claim
19 words
A radiation sensitive photographic element as in claim 2, wherein said external surface layer also contains a polymeric binder.
Claim 3
Dependent Claim
12 words
An element as in claim 3, wherein said polymeric binder is gelatin.
Claim 4
Dependent Claim
19 words
An element as in claim 4, wherein said second material is a reaction product of nonylphenol and glycidol, respectively.
Claim 5
Dependent Claim
22 words
An element as in claim 5, wherein said first material is perfluorooctylsulfonamido (N-propyl-3-N,N,N-trimethyl) ammonium iodide and said second material has the structure
Claim 6
Dependent Claim
29 words
An element as in claim 6, wherein the nonyl group in said second material is para with respect to the position of the -O-Q group on the benzene nucleus.
Claim 7
Dependent Claim
27 words
An element as in claim 7, wherein said surface of said polymeric substrate is a solid linear polyester, polyamide, polyolefin, or a lower alkyl ester of cellulose.
Claim 8
Dependent Claim
81 words
A radiation sensitive photographic element comprising a solid transparent polymeric film substrate containing over at least one surface at least one radiation sensitive layer; said radiation sensitive layer being overcoated with a charge control layer comprising from about 0.01 to about 1 mg per dm2 of overcoated area of a blend of perfluorooctylsulfonamido (N-propyl-3-N,N,N-trimethyl) ammonium iodide, p-isononylphenoxy decapropyleneoxide, and gelatin; the weight ratio of the cationic surfactant to nonionic surfactant in said blend being from about 1.5:1 to about 1:50, respectively.
Claim 9
Dependent Claim
24 words
A radiation sensitive element as in claim 1, wherein said mixture is contiguous to a radiation sensitive layer which contains an alkylaryl sulfonate surfactant.
Claim 10
Dependent Claim
28 words
A radiation sensitive element as in claim 9, wherein said blend is contiguous with said radiation sensitive layer; said radiation sensitive layer also containing an alkylaryl sulfonate surfactant.
Claim 11
Dependent Claim
16 words
An aqueous coating composition comprising a fluid mixture comprising water, a first material having the formula
Claim 12
Dependent Claim
39 words
An aqueous coating composition as in claim 12, wherein said composition also contains at least about 0.5 weight percent of a polymeric binder, based on the combined weights of said first material, said second material and said polymeric binder.
Claim 13
Dependent Claim
19 words
A coating composition as in claim 13, wherein said second material is a reaction product of nonylphenol and glycidol.
Claim 14
Dependent Claim
13 words
A coating composition as in claim 14, wherein said polymeric binder is gelatin.
Claim 15
Dependent Claim
23 words
A coating composition as in claim 15, wherein said first material is perfluorooctylsulfonamido -(N-propyl-3-N,N,N-trimethyl ammonium iodide and said second material is p-isononylphenoxy decaglycidol.
Claim 16
Dependent Claim
50 words
A coating composition consisting essentially of a. at least about 60 weight percent of water, b. at least about 0.5 weight percent of gelatin, c. at least about 0.005 weight percent of perfluoro-octylsulfonamido (-N-propyl-3-N,N,N-trimethyl) ammonium iodide, and (d) at least about 0.01 weight percent of a material having the structure
Claim 17
Dependent Claim
46 words
A coating composition comprising of a blend of about 0.05 parts by weight of perfluorooctylsulfonamido (N-propyl-3-N,N,N-trimethyl) ammonium iodide and from about 0.05 to about 22 parts by weight of p-isononylphenoxy decaglycidol dissolved in water; said blend being at least about 0.015 weight percent of said composition.
Claim 18
Dependent Claim
14 words
A coating composition comprising a fluid mixture of a first material having the formula
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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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |