Polymeric compounds
AssigneeKodak Polychrome Graphics LLC
InventorsAlan Stanley Monk, James Laurence Mulligan
Life of this patent
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Abstract
Polymeric compounds for lithographic printing plates, especially plates for use in printing utilizing UV curable inks, may include a structural unit (I) wherein R1 represents an optionally-substituted cyclic or alkyl group, x represents 0 or 1 and A represents an optionally-substituted alkylene group. A range of compounds having different solubilities in selected solvents may be prepared by varying the identity or group R1. Such components may be prepared by reacting an amine of formula R1NH2 with the maleic anhydride derivative corresponding to moiety 1.
Claims11
A lithographic printing plate precursor which includes a polymeric compound having the structural unit
- wherein R1 represents an optionally substituted cyclic or alkyl group, x represents 0 or 1, and (i) A represents an optionally-substituted alkylene group, or (ii) A is of general formula —CHR4CH2— wherein R4 represents a hydrogen or halogen atom, a hydroxy group or an optionally-substituted alkyl, alkoxy, or phenyl group.
A process for the preparation of a polymeric compound having the structural unit
- for a printing member precursor, the process including the step of selecting an amine of formula R′NH2 to give when reacted with a polymeric compound having the structural unit
- followed by optional derivatization, the desired resistance to a solvent used in printing;
- treating said compound having the structural unit IV with said amine to yield a compound having the structural unit III;
- and optionally derivatizing said compound having the structural unit III to yield another compound of structural unit III, wherein R1 represents an optionally substituted cyclic or alkyl group, x represents 0 or 1, and (i) A represents an optionally-substituted alkylene group, or (ii) A is of general formula —CHR4CH2— wherein R4 represents a hydrogen or halogen atom, a hydroxy group or an optionally-substituted alkyl, alkoxy, or phenyl group.
A polymeric compound having the structural unit
- wherein R1 represents an optionally substituted cyclic or alkyl group and x represents 0 or 1, and (i) A represents an optionally-substituted alkylene group, or (ii) A is of general formula —CHR4CH2 — wherein R4 represents a hydrogen or halogen atom, a hydroxy group or an optionally-substituted alkyl, alkoxy, or phenyl group.
A printing member having printing and non-printing areas wherein said printing areas include a first layer which includes a polymeric compound having the structural unit
- wherein R1 represents an optionally substituted cyclic or alkyl group and x represents 0 or 1, and (i) A represents an optionally-substituted alkylene group, or (ii) A is of general formula —CHR4CH2— wherein R4 represents a hydrogen or halogen atom, a hydroxy group or an optionally-substituted alkyl, alkoxy, or phenyl group.
Dependencies are inferred from the claim text.