US5356468A
Expired / Lapsed
US
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Antistat coating compositions and antistat layers formed therefrom
Assignee: Eastman Kodak Co
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Filing: 1993-05-27
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Granted: 1994-10-18
•
Expires: 2013-05-27
Abstract
Abstract Coating composition, antistat layer and photographic element having a V 2 O 5 antistat layer, the layer containing an amount of cellulose nitrate to prevent precipitation of the V 2 O 5 in the presence of film base.
Inventors
- 👤 Charles T. Havens
- 👤 Raymond T. Jones
- 👤 John M. Fukushima
- 👤 Jack J. Holt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:57
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; C; C09; C09D; C09D101/00; C09D101/08; C09D101/16; C09D101/18; C09K; C09K3/00; C09K3/16; C08; C08L; C08L2201/00; C08L2201/04; G03C1/853; G03C1/89
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
32 words
A coating composition for applying an antistat layer to a support which comprises vanadium pentoxide, at least 0.04 parts of cellulose nitrate per part of vanadium pentoxide, and the balance coating vehicle.
Claim 2
Dependent Claim
32 words
A coating composition for applying an antistat layer to a support which comprises vanadium pentoxide, at least 0.04 parts of cellulose nitrate per part of vanadium pentoxide, and the balance coating vehicle.
Claim 3
Dependent Claim
44 words
The coating composition of claim 1 wherein the vanadium pentoxide is present in an amount of from about 0.05 to about 0.2 weight percent and the cellulose nitrate is present in an amount of 0.04 to about 40 parts per part of vanadium pentoxide.
Claim 4
Dependent Claim
26 words
The coating composition of claim 2 wherein the cellulose nitrate is present in an amount of from 0.04 parts to parts per part of vanadium pentoxide.
Claim 5
Dependent Claim
27 words
The coating composition of claim 2 wherein the cellulose nitrate is present in an amount of from 0,04 parts to 2 parts per part of vanadium pentoxide.
Claim 6
Dependent Claim
20 words
The coating composition of claim 1 wherein the vanadium pentoxide is present in an amount less than 0.15 weight percent.
Claim 7
Dependent Claim
20 words
The coating composition of claim 1 wherein the vanadium pentoxide is present in an amount less than 0.1 weight percent.
Claim 8
Dependent Claim
13 words
The coating composition of claim 1 wherein a polymer binder is also present.
Claim 9
Dependent Claim
26 words
The coating composition of claim 7 wherein the binder polymer is present in an amount up to 5 percent by weight based on the total weight.
Claim 10
Dependent Claim
14 words
The coating composition of claim 8 wherein the polymer binder is a cellulose ester.
Claim 11
Dependent Claim
13 words
The coating composition of claim 9 wherein the cellulose ester is cellulose acetate.
Claim 12
Dependent Claim
14 words
The coating composition of claim 7 wherein the polymeric binder is urea formaldehyde resin.
Claim 13
Dependent Claim
19 words
The coating composition of claim 1 wherein the vanadium pentoxide is present in an effective amount to achieve conductivity.
Claim 14
Dependent Claim
21 words
The coating composition of claim 12 wherein the vanadium pentoxide is present in an amount less than about 0.2 weight percent.
References Cited (Backward Citations)
US3359126A
Cited
US4203769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-17 | 1998-04-18 | 1998-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-17 | 2002-04-18 | 2002-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-17 | 2006-04-18 | 2006-10-18 | $7700.00 | Window Closed / Lapsed |