US4098188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing plate
Assignee: Hoechst AG
•
Filing: 1976-10-07
•
Granted: 1978-07-04
•
Expires: 1996-10-07
Abstract
Abstract This invention relates to a printing plate comprising a support bearing either (A) a layer comprising particles each containing a hydrophilic metal core and an oleophilic metal casing or (B) a layer comprising particles each containing an oleophilic metal core and a hydrophilic metal casing.
Inventors
- 👤 Joachim Stroszynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:09
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/04; B41N1/08; B41N1/10; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
44 words
A printing plate comprising a support bearing a layer comprising particles each containing a hydrophilic metal core selected from the group consisting of aluminum, zinc, steel, chromium, and nickel, and an oleophilic metal casing selected from the group consisting of copper, brass, and lead.
Claim 2
Dependent Claim
44 words
A printing plate comprising a support bearing a layer comprising particles each containing a hydrophilic metal core selected from the group consisting of aluminum, zinc, steel, chromium, and nickel, and an oleophilic metal casing selected from the group consisting of copper, brass, and lead.
Claim 3
Dependent Claim
18 words
A plate as claimed in claim 1 including an adhesive whereby the particles are attached to the support.
Claim 4
Dependent Claim
16 words
A plate as claimed in claim 2 wherein the particles are dispersed in an adhesive layer.
Claim 5
Dependent Claim
13 words
A plate as claimed in claim 1 wherein the support is a film.
Claim 6
Dependent Claim
16 words
A plate as claimed in claim 1 wherein the average particle size is about 0.014 mm.
Claim 7
Dependent Claim
15 words
A plate as claimed in claim 1 wherein the layer is generally one particle thick.
Claim 8
Dependent Claim
12 words
A plate as claimed in claim 1 also comprising an etch-resistant layer.
Claim 9
Dependent Claim
13 words
A plate as claimed in claim 7 wherein the etch-resistant layer is photosensitive.
Claim 10
Dependent Claim
44 words
A printing plate comprising a support bearing a layer comprising particles each containing an oleophilic metal core selected from the group consisting of copper, brass, and lead, and a hydrophilic metal casing selected from the group consisting of aluminum, zinc, steel, chromium, and nickel.
Claim 11
Dependent Claim
44 words
A printing plate comprising a support bearing a layer comprising particles each containing an oleophilic metal core selected from the group consisting of copper, brass, and lead, and a hydrophilic metal casing selected from the group consisting of aluminum, zinc, steel, chromium, and nickel.
Claim 12
Dependent Claim
19 words
A plate as claimed in claim 9 including an adhesive layer whereby the particles are attached to the support.
Claim 13
Dependent Claim
16 words
A plate as claimed in claim 10 wherein the particles are dispersed in an adhesive layer.
Claim 14
Dependent Claim
13 words
A plate as claimed in claim 10 wherein the support is a film.
Claim 15
Dependent Claim
16 words
A plate as claimed in claim 1 wherein the average particle size is about 0.014 mm.
Claim 16
Dependent Claim
15 words
A plate as claimed in claim 10 wherein the layer is generally one particle thick.
Claim 17
Dependent Claim
12 words
A plate as claimed in claim 10 also comprising an etch-resistant layer.
Claim 18
Dependent Claim
13 words
A plate as claimed in claim 14 wherein the etch-resistant layer is photosensitive.
Claim 19
Dependent Claim
72 words
A process for the production of a bimetallic printing plate which comprises coating a support with a layer comprising particles each containing a hydrophilic metal core selected from the group consisting of aluminum, zinc, steel, chromium, and nickel, an oleophilic metal casing selected from the group consisting of copper, brass and lead, and etching the casings in a manner such that said cores are bared in selected areas of the plate surface.
Claim 20
Dependent Claim
72 words
A process for the production of a bimetallic printing plate which comprises coating a support with a layer comprising particles each containing a hydrophilic metal core selected from the group consisting of aluminum, zinc, steel, chromium, and nickel, an oleophilic metal casing selected from the group consisting of copper, brass and lead, and etching the casings in a manner such that said cores are bared in selected areas of the plate surface.
Claim 21
Dependent Claim
72 words
A process for the production of a bimetallic printing plate which comprises coating a support with a layer comprising particles each containing an oleophilic metal core selected from the group consisting of copper, brass, and lead, a hydrophilic metal casing selected from the group consisting of aluminum, zinc, steel, chromium, and nickel. and etching the casings in a manner such that said cores are bared in selected areas of the plate surface.
Claim 22
Dependent Claim
72 words
A process for the production of a bimetallic printing plate which comprises coating a support with a layer comprising particles each containing an oleophilic metal core selected from the group consisting of copper, brass, and lead, a hydrophilic metal casing selected from the group consisting of aluminum, zinc, steel, chromium, and nickel. and etching the casings in a manner such that said cores are bared in selected areas of the plate surface.
References Cited (Backward Citations)
US3031344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |