Method of producing a planographic printing plate

US8993216B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8993216-B2
Application numberUS-201313773622-A
CountryUS
Kind codeB2
Filing dateFeb 21, 2013
Priority dateMar 30, 2012
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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  1. Title

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  2. Abstract

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  5. First independent claim

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  7. Citations and related patents

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Abstract

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A method for producing a planographic printing plate is provided, which includes: subjecting a planographic printing plate precursor to image-wise exposure, wherein the precursor includes plural recording layers at least one of which contains (A) an infrared absorbing agent on a support, the upper recording layer contains (B) a water-insoluble and alkali-soluble polymer compound having a repeating unit containing a fluoroalkyl group or a siloxane structure; and developing the precursor using an alkali developer containing (C)an ammonium salt compound of Formulae (C-1) to (C-3), wherein R 1 represents a methyl group or an ethyl group, R 2 and R 3 represent a hydrocarbon group having 3 to 20 carbon atoms, R 4 represents a hydrocarbon group, A represents an atomic group which forms a nitrogen-containing aliphatic ring with N + , B represents an atomic group which forms a nitrogen-containing aromatic ring with N + , and X − represents a counter anion.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for producing a planographic printing plate, the method comprising, in the following order: subjecting a planographic printing plate precursor to image-wise light exposure, the planographic printing plate precursor comprising: a surface-hydrophilic support; and, on the surface-hydrophilic support, at least two recording layers including an alkali-soluble polymer compound, wherein at least one layer of the at least two recording layers is a positive-…

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What does patent US8993216B2 cover?
A method for producing a planographic printing plate is provided, which includes: subjecting a planographic printing plate precursor to image-wise exposure, wherein the precursor includes plural recording layers at least one of which contains (A) an infrared absorbing agent on a support, the upper recording layer contains (B) a water-insoluble and alkali-soluble polymer compound having a repeat…
Who is the assignee on this patent?
Fujifilm Corp
What technology area does this patent fall under?
Primary CPC classification B41C1/1008. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Mar 31 2015 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).