Photopolymerizable composition

Details Photopolymerizable composition Photopolymerizable composition

G - Physics

03

F

402/1.5

G03F 7/038 (2006.01) G03F 7/027 (2006.01)

Patent

CA 1338095

The present invention provides a photopolymerizable composition which is highly sensitive to visible light and near infrared rays, i.e. light of 600 to 900 nm, and has good stability over time. The photopolymerizable composition comprises a polymerizable compound having an ethylenically unsaturated double bond and a photopolymerization initiator wherein the photopolymerization initiator comprises; (A) a cyanine dye having a peak absorption wavelength within 550 to 850 nm, represented by the formula; Image (I) wherein A and B respectively represent a substituted or unsubstituted nitrogen-containing heterocyclic ring and the nitrogen atom in the A ring has a positive charge, X is a counter anion, R represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, a phenyl group and a halogen atom, and n is an integer of 0 to 3; and (B) a diaryliodonium salt.

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