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Polyvinylpyrrolidone copolymer resin-based composition capable of photoinitiated cationic polymerization imaging

A technology of polyvinylpyrrolidone and imaging composition, which is applied in the field of cationic polymerizable imaging composition, and can solve problems such as poor adhesion, serious shrinkage, and easy polymerization inhibition by oxygen

Active Publication Date: 2015-06-17
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the free radical photocuring system has the advantages of fast curing speed and easy adjustment of properties, it also has problems such as severe shrinkage, poor adhesion, and easy to be inhibited by oxygen (Zhang Yajing, Zou Yingquan. Progress in photocationic polymerization of monomers[J]. Information Recording Materials, 2005, 6(3): 17-26)

Method used

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  • Polyvinylpyrrolidone copolymer resin-based composition capable of photoinitiated cationic polymerization imaging
  • Polyvinylpyrrolidone copolymer resin-based composition capable of photoinitiated cationic polymerization imaging
  • Polyvinylpyrrolidone copolymer resin-based composition capable of photoinitiated cationic polymerization imaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～15

[0095] In a four-neck flask equipped with a stirrer, a condenser, a nitrogen conduit, and a thermometer, add N-vinylpyrrolidone monomer (NVP) and monomers containing ethylenically unsaturated double bonds at room temperature, and the solvent is absolute ethanol. Under nitrogen protection, stir and add the initiator azobisisobutyronitrile (AIBN), the initiator accounts for 0.1% to 0.5% of the total mass of NVP and monomers containing ethylenically unsaturated double bonds, preferably 0.2% to 0.3%, After the initiator is completely dissolved, the temperature of the reaction system is raised to 65-70°C and the reaction is stirred at a constant temperature, and NVP is continuously added dropwise as the reaction progresses, so that the molar ratio of NVP in the system is always maintained at the initial feeding ratio. After the reaction, the solvent was distilled off under reduced pressure to obtain a water-soluble N-vinylpyrrolidone copolymer resin. The synthesis situation of wate...

preparation Embodiment 8～30 and comparative example 3～6

[0131] Preparation of photosensitive glue:

[0132] The imaging composition containing the difunctionality vinyl ether compound is dissolved in the propylene glycol methyl ether solvent, stirring to fully dissolve each component of the imaging composition containing the bifunctionality vinyl ether compound, and the amount of the propylene glycol methyl ether solvent added is Make the mass of the above-mentioned imaging composition containing the bifunctional vinyl ether compound account for 10% of the total mass of the photosensitive glue, and then filter it with a filter element with a pore size of 0.5 μm to obtain the photosensitive composition of the imaging composition containing the bifunctional vinyl ether compound. Glue.

[0133] In Examples 8-30 and Comparative Examples 3-6, the difunctional vinyl ether compound corresponds to D7 in Table 1, and the other components of the imaging composition containing the difunctional vinyl ether compound are shown in Table 4 (raw ma...

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Abstract

The invention belongs to the field of information recording materials and relates to a polyvinylpyrrolidone copolymer resin-based composition capable of photoinitiated cationic polymerization imaging, especially to a photoinitiated cationic polymerization imageable composition of a photosensitive layer of a high-sensibility photoinitiated polymerization printing plate used for planographic printing and developable with water. The composition contains, by mass, 10 to 80% of a film forming resin, 19 to 70% of a photosensitive material capable of realizing cationic polymerization and containing a vinyl ether functional group, 0 to 70% of an active diluent, 0.1 to 30% of a polymerization initiating system and 0.1 to 15% of a coloring background dye, wherein the photosensitive material capable of realizing cationic polymerization and containing the vinyl ether functional group is a mixture of (i) a bifunctional vinyl ether compound and (ii) a trifunctional polyurethane vinyl ether compound, and the (i) bifunctional vinyl ether compound is a reaction product of (a) an vinyl ether compound with a hydroxyl group in its molecule and (b) a diisocyanate compound.

Description

technical field [0001] The invention belongs to the field of information recording materials, and particularly relates to a cationic polymerizable imaging composition of a photosensitive layer of a high-sensitivity photopolymerizable plate for lithography that can be developed by water. In addition, the present invention relates to a cationically polymerizable imaging composition for a photosensitive layer of a high-sensitivity photopolymerizable plate based on a vinylpyrrolidone copolymer resin that can be developed on-press by a fountain solution on a printing press. Background technique [0002] UV curing generally refers to an emerging technology in which photoinitiators generate active species, such as free radicals or cations, under the irradiation of ultraviolet light, so that prepolymers or functional monomers with active functional groups can be cured rapidly at room temperature. It was developed as a replacement process for traditional heat curing technology. As a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/027G03F7/038
Inventor 肖时卓辛阳阳庞玉莲邹应全陈萍周树云严峻孙承华胡秀杰
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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