US4582781A
Expired / Lapsed
US
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Antistatic compositions comprising polymerized oxyalkylene monomers and an inorganic tetrafluoroborate, perfluoroalkyl carboxylate, hexafluorophosphate or perfluoroalkylsulfonate salt
Assignee: Eastman Kodak Co
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Filing: 1984-08-01
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Granted: 1986-04-15
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Expires: 2004-08-01
Abstract
Abstract Antistatic compositions are disclosed comprising a hydrophilic binder, surface-active polymer having polymerized oxyalkylene monomers and an inorganic salt characterized in that the salt is selected from the group consisting of inorganic tetrafluoroborates, perfluoroalkyl carboxylates, hexafluorophosphates and perfluoroalkyl sulfonates.
Inventors
- 👤 Janglin Chen
- 👤 James E. Kelly
- 👤 James Plakunov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:18
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/853; C; C08; C08K; C08K3/00; C08K3/32; C08K3/38; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K5/36; C08K5/41; C08K5/42; C09; C09K; C09K3/00; C09K3/16; Y; Y10; Y10S; Y10S430/00; Y10S430/167; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
47 words
An element comprising a support and a layer of an antistatic composition comprising a hydrophilic binder, a surface-active polymer having polymerized oxyalkylene monomers and an inorganic salt characterized in that the salt is selected from the group consisting of inorganic tetrafluoroborates, perfluoroalkyl carboxylates, hexafluorophosphates and perfluoroalkyl sulfonates.
Claim 2
Dependent Claim
47 words
An element comprising a support and a layer of an antistatic composition comprising a hydrophilic binder, a surface-active polymer having polymerized oxyalkylene monomers and an inorganic salt characterized in that the salt is selected from the group consisting of inorganic tetrafluoroborates, perfluoroalkyl carboxylates, hexafluorophosphates and perfluoroalkyl sulfonates.
Claim 3
Dependent Claim
53 words
A photographic element comprising a support having thereon a radiation-sensitive layer and a layer of an antistatic composition comprising a hydrophilic binder, a surface-active polymer having polymerized oxyalkylene monomers and an inorganic salt characterized in that the salt is selected from the group consisting of inorganic tetrafluoroborates, hexafluorophosphates, perfluoroalkyl carboxylates and perfluoroalkyl sulfonates.
Claim 4
Dependent Claim
53 words
A photographic element comprising a support having thereon a radiation-sensitive layer and a layer of an antistatic composition comprising a hydrophilic binder, a surface-active polymer having polymerized oxyalkylene monomers and an inorganic salt characterized in that the salt is selected from the group consisting of inorganic tetrafluoroborates, hexafluorophosphates, perfluoroalkyl carboxylates and perfluoroalkyl sulfonates.
Claim 5
Dependent Claim
48 words
The element of claim 1 or 2 wherein the oxyalkylene monomer is selected from the group consisting of oxyethylene and oxypropylene and the salt is selected from the group consisting of alkali metal perfluoromethanesulfonates, alkali metal tetrafluoroborates, alkali metal perfluoropropyl carboxylates, alkali metal hexafluorophosphates and alkali metal perfluorobutanesulfonates.
Claim 6
Dependent Claim
43 words
The element of claim 1 or 2 wherein the polymer is selected from the polymers of Table I and the salt is selected from the group consisting of potassium trifluoromethanesulfonate, potassium perfluorobutanesulfonate, potassium trifluoroacetate, potassium perfluorobutanoate, lithium tetrafluoroborate, potassium hexafluorophosphate and lithium trifluoromethanesulfonate.
Claim 7
Dependent Claim
51 words
The element of claim 1 or 2 wherein the antistatic layer comprises from 5 to 500 mg of polymerized polyoxyalkylene monomers per square meter of the layer, from 5 to 500 mg of the inorganic salt per square meter and from 0.1 to 10 gm of the binder per square meter.
Claim 8
Dependent Claim
35 words
The element of claim 2 wherein the photographic element is a radiographic element having a silver halide emulsion on each side of the support and wherein the antistatic layer overcoats each of the radiographic emulsions.
Claim 9
Dependent Claim
22 words
The element of claim 2 wherein the antistatic composition is coated on the support surface which is remote from the radiation-sensitive layer.
References Cited (Backward Citations)
US4267265A
Cited
US4272616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |