Patent US5322761A successfully refreshed from Google Patents.
US5322761A
Expired / Lapsed
US
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Flexographic printing plate having a vanadium oxide antistatic coating layer
Assignee: EIDP Inc
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Filing: 1992-06-04
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Granted: 1994-06-21
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Expires: 2012-06-04
Abstract
Abstract A flexographic printing plate comprising in the following order: a flexible substrate, a photohardenable composition, and a colloidal vanadium oxide antistatic layer. The antistatic layer provides protection from static induced defects until and after the flexographic plate is processed.
Inventors
- 👤 William L. Kausch
- 👤 John A. Martens
- 👤 Eric D. Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:00
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/09; G03F7/093
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
21 words
A flexographic printing plate comprising in the following order a flexible substrate, a photohardenable composition, and a vanadium oxide antistatic layer.
Claim 2
Dependent Claim
21 words
A flexographic printing plate comprising in the following order a flexible substrate, a photohardenable composition, and a vanadium oxide antistatic layer.
Claim 3
Dependent Claim
24 words
The plate of claim 1 wherein a radiation curable top coat layer is present below said antistatic layer and adjacent to said photohardenable composition.
Claim 4
Dependent Claim
14 words
The plate of claim 1 wherein said photohardenable composition comprises ethylenically unsaturated polymerizable materials.
Claim 5
Dependent Claim
14 words
The plate of claim 2 wherein said photohardenable composition comprises ethylenically unsaturated polymerizable materials.
Claim 6
Dependent Claim
15 words
The plate of claim 2 wherein said radiation curable top coat layer contains visible pigment.
Claim 7
Dependent Claim
15 words
The plate of claim 4 wherein said radiation curable top coat layer contains visible pigment.
Claim 8
Dependent Claim
18 words
The plate of claim 1 wherein a primer layer is between said flexible substrate and said photohardenable composition.
Claim 9
Dependent Claim
18 words
The plate of claim 2 wherein a primer layer is between said flexible substrate and said photohardenable composition.
Claim 10
Dependent Claim
12 words
The plate of claim 7 wherein said primer layer comprises an aziridine.
Claim 11
Dependent Claim
12 words
The plate of claim 8 wherein said primer layer comprises an aziridine.
Claim 12
Dependent Claim
16 words
The plate of claim 3 wherein said ethylenically unsaturated material comprises an acrylic functional polymerizable material.
Claim 13
Dependent Claim
16 words
The plate of claim 4 wherein said ethylenically unsaturated material comprises an acrylic functional polymerizable material.
Claim 14
Dependent Claim
14 words
The plate of claim 5 wherein said photohardenable composition comprises acrylic functional polymerizable material.
Claim 15
Dependent Claim
14 words
The plate of claim 7 wherein said photohardenable layer comprises acrylic functional polymerizable material.
Claim 16
Dependent Claim
14 words
The plate of claim 10 wherein said photohardenable layer comprises acrylic functional polymerizable material.
Claim 17
Dependent Claim
16 words
The plate of claim 1 wherein said photohardenable layer comprises an ethylenically unsaturated elastomeric polymerizable material.
Claim 18
Dependent Claim
16 words
The plate of claim 2 wherein said photohardenable layer comprises an ethylenically unsaturated elastomeric polymerizable material.
Claim 19
Dependent Claim
16 words
The plate of claim 5 wherein said photohardenable layer comprises an ethylenically unsaturated elastomeric polymerizable material.
Claim 20
Dependent Claim
16 words
The plate of claim 10 wherein said photohardenable layer comprises an ethylenically unsaturated elastomeric polymerizable material.
Claim 21
Dependent Claim
20 words
The plate of claim 16 wherein said ethylenically unsaturated material comprises a material with acrloyl or methacryloyl polymerizable groups thereon.
Claim 22
Dependent Claim
21 words
The plate of claim 17 wherein said ethylenically unsaturated elastomeric material comprises a material having acryloyl or methacryloyl polymerizable groups thereon.
Claim 23
Dependent Claim
21 words
The plate of claim 19 wherein said ethylenically unsaturated elastomeric material comprises a material having acryloyl or methacryloyl polymerizable groups thereon.
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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) | 1997-06-20 | 1997-12-20 | 1998-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-20 | 2001-12-20 | 2002-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-20 | 2005-12-20 | 2006-06-21 | $7700.00 | Window Closed / Lapsed |