Photopolymerizable composition

Details Photopolymerizable composition Photopolymerizable composition

G - Physics

03

F

96/157

G03F 7/031 (2006.01) C08F 2/50 (2006.01)

Patent

CA 1230004

TITLE OF THE INVENTION: PHOTOPOLYMERIZABLE COMPOSITION ABSTRACT: A photopolymerizable composition comprising an addition- polymerizable compound having at least one ethylenically unsaturat- ed double bond and a photopolymerization initiator, characterized in that the initiator comprises (a) a compound of the formula: Image (I) wherein R1 and R2 are alkyl group, n is 1, 2 or 3 and ring A is an aromatic ring containing nitrogen atom, and (b) hexaarylbiimida- zole. The initiator may additionally contain a thiol of the formula: Image (II) wherein Z is -O-,-S- or -NH-. The composition is not only highly sensitive to ultraviolet ray but also highly stable in storage.

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