US4013696A
Expired / Lapsed
US
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Element comprising a coating layer containing a mixture of a cationic perfluorinated alkyl and an alkylphenoxy-poly(propylene oxide)
Assignee: Eastman Kodak Co
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Filing: 1974-08-28
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Granted: 1977-03-22
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Expires: 1994-08-28
Abstract
Abstract A combination of improved coatability of a coating composition onto an anionic surfactant-containing contiguous layer of a radiation-sensitive or non-radiation sensitive film element, plus better control of static electricity on the resulting coated film element, especially on a radiation sensitive photographic element, results from using a coating composition containing a surfactant mixture of (a) a certain type of cationic perfluorinated alkyl surfactant, such as perfluorooctylsulfonamido-(N-propyl-3-N,N,N-trimethyl) ammonium iodide, with (b) a certain type of nonionic alkylphenoxypoly(propylene oxide) surfactant, such as para-isononylphenoxy decaglycidol, as a coating aid in the application of fluid coatings, preferably by simultaneous coating techniques, to form multiple layers in an element during the making of the element. The presence of a hydrophilic polymeric binder, such as gelatin, in the coating composition is desirable.
Inventors
- 👤 John M. Babbitt
- 👤 James F. Houle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:29
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/7614; G03C1/005; G03C1/06; G03C1/38; G03C1/385; G03C1/85; Y; Y10; Y10S; Y10S430/00; Y10S430/162; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31725; Y10T428/31728; Y10T428/31736; Y10T428/3175; Y10T428/31754; Y10T428/31768; Y10T428/31772; Y10T428/31775; Y10T428/31786; Y10T428/31855; Y10T428/31938; Y10T428/31971; Y10T428/31993; Y10T428/31996
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
214 words
An element comprising a support, a layer (a) containing at least one anionic surfactant and contiguous to said layer (a) a layer (b) containing a mixture of at least one cationic surfactant and at least one nonionic surfactant, said layer (b) being farther from said support than is said layer (a); said mixture comprising A. at least one cationic surfactant having the formula (I): ##EQU9## wherein n is an integer of from 1 to 9, m is an integer of from 1 to 6, R 1 is hydrogen or a lower alkyl group of from 1 to 4 carbon atoms, R 2 , R 3 and R 4 are independently selected alkyl groups of from 1 to 6 carbon atoms, and X - is an anionic moiety; and B. at least one non-ionic surfactant having the formula (II): ##SPC7## wherein R 5 is an alkyl group of from 6 to 18 carbon atoms, R 6 is hydrogen or an alkyl group of from 1 to 18 carbon atoms and Q is a polyether group comprising from about 3 to 15 units of hydroxypropylene oxide, said polyether group comprising n-propylene and isopropylene moieties; the weight ratio of said cationic surfactant to said nonionic surfactant in said mixture being from about 2:1 to about 1:75, respectively.
Claim 2
Dependent Claim
214 words
An element comprising a support, a layer (a) containing at least one anionic surfactant and contiguous to said layer (a) a layer (b) containing a mixture of at least one cationic surfactant and at least one nonionic surfactant, said layer (b) being farther from said support than is said layer (a); said mixture comprising A. at least one cationic surfactant having the formula (I): ##EQU9## wherein n is an integer of from 1 to 9, m is an integer of from 1 to 6, R 1 is hydrogen or a lower alkyl group of from 1 to 4 carbon atoms, R 2 , R 3 and R 4 are independently selected alkyl groups of from 1 to 6 carbon atoms, and X - is an anionic moiety; and B. at least one non-ionic surfactant having the formula (II): ##SPC7## wherein R 5 is an alkyl group of from 6 to 18 carbon atoms, R 6 is hydrogen or an alkyl group of from 1 to 18 carbon atoms and Q is a polyether group comprising from about 3 to 15 units of hydroxypropylene oxide, said polyether group comprising n-propylene and isopropylene moieties; the weight ratio of said cationic surfactant to said nonionic surfactant in said mixture being from about 2:1 to about 1:75, respectively.
Claim 3
Dependent Claim
88 words
An element as in claim 1, wherein said anionic surfactant is a material having the formula: R.sub.7 Ar.sub.z SO.sub.3 O.sub.z M wherein R 7 is an alkyl group of from 8 to 20 carbon atoms, Ar is arylene, each z is independently selected and is either zero or one and M is an alkali metal or ammonium, or the structure ##EQU10## wherein R 8 is an alkyl radical of from 4 to 12 carbon atoms, P is one or two and M is an alkali metal or ammonium.
Claim 4
Dependent Claim
16 words
An element as in claim 2, wherein the mixture also contains at least one hydrophilic colloid.
Claim 5
Dependent Claim
12 words
An element as in claim 3, wherein the hydrophilic colloid is gelatin.
Claim 6
Dependent Claim
31 words
An element as in claim 4, wherein said cationic surfactant has the formula: ##EQU11## and the weight ratio of cationic to nonionic surfactant is from about 1.5:1 to about 1:50, respectively.
Claim 7
Dependent Claim
42 words
An element as in claim 4, wherein said nonionic surfactant has the formula: ##SPC8## wherein Q is a polyether group comprising about 10 propenoxy units, and the weight ratio of cationic to nonionic surfactant is from about 1.5:1 to about 1:50, respectively.
Claim 8
Dependent Claim
33 words
An element as in claim 4, wherein the cationic surfactant is perfluorooctylsulfonamido-(N-propyl-3-N,N,N-trimethyl) ammonium iodide and the nonionic surfactant is para-isononylphenoxy decaglycidol, in the weight ratio of from about 1.5:1 to about 1:50, respectively.
Claim 9
Dependent Claim
32 words
An element as in claim 1, wherein said element comprises from about 0.002 mg to about 2.0 mg of said surfactants in said mixture per dm 2 of surface of layer (a).
Claim 10
Dependent Claim
28 words
An element as in claim 1, wherein said support is selected from a solid linear polyester, polyamide, polyolefin, polycarbonate, polystyrene, lower alkyl ester of cellulose, or paper stock.
Claim 11
Dependent Claim
13 words
An element as in claim 9, wherein said support is a polyester support.
Claim 12
Dependent Claim
13 words
An element as in claim 9, wherein said support is a paper support.
Claim 13
Dependent Claim
19 words
An element as in claim 9, wherein said support is a support of a lower alkyl ester of cellulose.
Claim 14
Dependent Claim
13 words
An element as in claim 9, wherein said support is a removable support.
Claim 15
Dependent Claim
17 words
An element as in claim 1, wherein layer (a) is a non-radiation-sensitive layer containing a hydrophilic colloid.
References Cited (Backward Citations)
US3811889A
Cited
US3775126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |