Photocurable resin composition
AssigneeNamics Corporation
InventorsAyako SATO, Rieko NAGATA
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Abstract
An object of the present invention is to provide a photocurable resin composition which is quickly cured through anionic polymerization even by irradiation with ultraviolet light from a ultraviolet light-emitting diode in the UV-A or UV-B range, the resin composition suitable for the manufacture of electronic components. The photocurable resin composition of the present invention comprises (a) a 2-methylene-1,3-dicarbonyl compound, (b) an ionic photo base generator and (c) a photo-sensitizer. The 2-methylene-1,3-dicarbonyl compound is a compound comprising at least one specific structural unit, and the ionic photo base generator is a salt comprising specific anion (i) and cation (ii).
Claims19
A photocurable resin composition which can be cured by irradiation with ultraviolet light in the UV-A or UV-B range, which composition comprises components (a) to (c) below:
- (a) a 2-methylene-1,3-dicarbonyl compound,
- (b) an ionic photo base generator, and
- (c) a photo-sensitizer,
- wherein:
- the 2-methylene-1,3-dicarbonyl compound is a compound comprising at least one structural unit represented by formula (I) below:
- the ionic photo base generator is a salt comprising anion (i) and cation (ii) below:
- (i) an anion represented by the formula (BAr4-nXn)−, wherein each Ar independently represent an unsubstituted or substituted C6-C10 aromatic hydrocarbon group, each X independently represents an unsubstituted or substituted, linear, branched or cyclic C1-C6 aliphatic hydrocarbon group, n is an integer of from 0 to 2, and when n=0, at least one Ar is a substituted C6-C10 aromatic hydrocarbon group;
- and
- (ii) a cation having an amidine structure, a guanidine structure or a biguanide structure.
Dependencies are inferred from the claim text.