Lithographic printing plate precursor and method of preparing the same
US-9223216-B2 · Dec 29, 2015 · US
Lithographic printing plate precursor and plate making method thereof
US9707749B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9707749-B2 |
| Application number | US-201213406286-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2012 |
| Priority date | Feb 28, 2011 |
| Publication date | Jul 18, 2017 |
| Grant date | Jul 18, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The invention is directed to a lithographic printing plate precursor including, in the following order: a support; an image-recording layer containing a radical polymerizable compound and a radical polymerization initiator; and a protective layer containing a star polymer, and the star polymer is preferably a polymer in which from 3 to 10 polymer chains are branched from a central skeleton.
First claim
Opening claim text (preview).
What is claimed is: 1. A lithographic printing plate precursor comprising, in the following order: a support; an image-recording layer containing a radical polymerizable compound and a radical polymerization initiator; and a protective layer containing a star polymer; wherein the image-recording layer does not contain the star polymer. 2. The lithographic printing plate precursor as claimed in claim 1 , wherein the star polymer is a polymer in which from 3 to 10 polymer chains are branched from a central skeleton. 3. The lithographic printing plate precursor as claimed in claim 1 , wherein the star polymer is a polymer in which from 3 to 10 polymer chains are branched from a central skeleton via sulfide bonds respectively. 4. The lithographic printing plate precursor as claimed in claim 1 , wherein the star polymer has a hydrophilic group in the polymer chain thereof. 5. The lithographic printing plate precursor as claimed in claim 1 , wherein the protective layer contains an inorganic stratiform compound. 6. The lithographic printing plate precursor as claimed in claim 1 , which is capable of printing after image exposure with a laser, by supplying at least one of printing ink and dampening water on a printing machine to remove an unexposed area of the image-recording layer. 7. The lithographic printing plate precursor as claimed in claim 1 , which is capable of removing after image exposure with a laser, an unexposed area of the image-recording layer with a developer having pH from 2 to 14.
Assignees
Inventors
Classifications
Backcoats; Back layers · CPC title
Polymer of monoethylenically unsaturated hydrocarbon · CPC title
Cover layers; Protective layers · CPC title
- B41C1/1016Primary
characterised by structural details, e.g. protective layers, backcoat layers or several imaging layers · CPC title
Negative working, i.e. the non-exposed (non-imaged) areas are removed · CPC title
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Frequently asked questions
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- What does patent US9707749B2 cover?
- The invention is directed to a lithographic printing plate precursor including, in the following order: a support; an image-recording layer containing a radical polymerizable compound and a radical polymerization initiator; and a protective layer containing a star polymer, and the star polymer is preferably a polymer in which from 3 to 10 polymer chains are branched from a central skeleton.
- Who is the assignee on this patent?
- Oohashi Hidekazu, Fujifilm Corp
- What technology area does this patent fall under?
- Primary CPC classification B41C1/1016. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 18 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).