Patent US7485397B2 successfully refreshed from Google Patents.
US7485397B2
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US
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Reusable printing plate, printing press and printing unit having the printing plate, process for imaging the printing plate and process for preparation of a fluorinated organic phosphonic acid
Assignee: Heidelberger Druckmaschinen AG
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Filing: 2005-07-18
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Granted: 2009-02-03
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Expires: 2025-07-18
Abstract
Abstract A reusable printing plate, in particular for use both in wet offset printing and in dry offset printing, includes a printing area and a metal oxide surface treated with at least one fluorinated phosphonic acid. A printing press and a printing unit having the printing plate, a process for imaging the printing plate and a process for preparation of a fluorinated organic phosphonic acid are also provided.
Inventors
- 👤 Wolfgang Eck
- 👤 Martin Gutfleisch
- 👤 Gerhard Daniel Peiter
- 👤 Matthias Schlörholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:45
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/03; B41N3/038; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3808
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
87 words
A reusable dry offset printing plate, comprising: a dry offset printing area; and a metal oxide surface made hydrophobic with at least one fluorinated phosphonic acid on said printing area; said fluorinated phosphonic acid being selected from the group consisting of: a fluorinated alkylphosphonic acid, a semiperfluorinated alkylphosphonic acid, a partly aromatic acid, and a fluorinated phosphonic acid having single or multiple branches in the alkyl chain and a number of carbon atoms being greater than or equal to 8 and less than or equal to 30.
Claim 2
Dependent Claim
87 words
A reusable dry offset printing plate, comprising: a dry offset printing area; and a metal oxide surface made hydrophobic with at least one fluorinated phosphonic acid on said printing area; said fluorinated phosphonic acid being selected from the group consisting of: a fluorinated alkylphosphonic acid, a semiperfluorinated alkylphosphonic acid, a partly aromatic acid, and a fluorinated phosphonic acid having single or multiple branches in the alkyl chain and a number of carbon atoms being greater than or equal to 8 and less than or equal to 30.
Claim 3
Dependent Claim
26 words
The reusable printing plate according to claim 1 , wherein said fluorinated phosphonic acid is a fluorinated organic phosphonic acid having 8 to 30 carbon atoms.
Claim 4
Dependent Claim
43 words
The reusable printing plate according to claim 1 , wherein said metal oxide surface is selected from the group consisting of naturally oxidized titanium surface, naturally oxidized stainless steel surface, naturally oxidized aluminum surface, titanate (TiO 2 ) and zirconate (ZrO 2 ).
Claim 5
Dependent Claim
21 words
The reusable printing plate according to claim 1 , wherein said treated printing area is lipophilic for dry offset printing ink.
Claim 6
Dependent Claim
15 words
A printing unit, comprising at least one reusable printing plate according to claim 1 .
Claim 7
Dependent Claim
14 words
A printing press, comprising at least one printing unit according to claim 1 .
Claim 8
Dependent Claim
60 words
A process for imaging of a reusable printing plate, which comprises the following steps: preparation of a reusable printing plate according to claim 1 ; production of an image on the printing plate by selective point-by-point supply of energy; printing the image on at least one print medium; and erasing the image by supply of energy over a large area.
Claim 9
Dependent Claim
25 words
The reusable printing plate according to claim 1 , wherein said dry offset printing area is a polyimid sheet coated with titanium by vapor deposition.
Claim 10
Dependent Claim
39 words
A reusable wet offset printing plate, comprising: a wet offset printing area; and a metal oxide surface made hydrophobic with at least one fluorinated phosphonic acid on said printing area; said fluorinated phosphonic acid being a partly aromatic acid.
Claim 11
Dependent Claim
39 words
A reusable wet offset printing plate, comprising: a wet offset printing area; and a metal oxide surface made hydrophobic with at least one fluorinated phosphonic acid on said printing area; said fluorinated phosphonic acid being a partly aromatic acid.
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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) | 2012-02-03 | 2012-08-04 | 2013-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2016-02-03 | 2016-08-04 | 2017-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2020-02-03 | 2020-08-04 | 2021-02-03 | $7700.00 | Window Closed / Lapsed |