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US 11,465,403 B2Granted
Lithographic printing plate precursor
AssigneeAgfa NV
InventorThomas Billiet
Life of this patent
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Abstract
A lithographic printing plate precursor is disclosed including a coating comprising a polymerisable compound, an infrared absorbing dye, a photoinitiator including a trihaloalkyl group and a borate compound.
Claims9
A lithographic printing plate precursor comprising a support and a coating comprising:
- a polymerizable compound;
- an infrared absorbing compound;
- a borate compound according to Formula I:
- wherein Rb1, Rb2, Rb3 and Rb4 are independently an optionally substituted aliphatic hydrocarbon group, an optionally substituted aryl group, or an optionally substituted heteroaryl group;
- and M+ is an alkali metal cation selected from Li+, Na+ or K+ or is an optionally substituted ammonium ion;
- and
- a photoinitiator, wherein the photoinitiator is a tribromomethyl aryl sulfone, wherein the aryl group of the tribromomethyl aryl sulfone is substituted by at least one electron-donating group in an ortho or para position.
4 more elements
Dependencies are inferred from the claim text.