Photocurable composition and product

Abstract

Provided are a photocurable composition which has excellent storage stability and is cured rapidly in bonding an opaque material, and a product. The photocurable composition contains (A) a compound having an unsaturated double bond, (B) at least one compound selected from the group consisting of compounds represented by the general formulae (1), (2), and (3), and (C) a sensitizer. In the general formulae (1), (2), and (3), R 1 to R 3 are each independently a substituent containing at least one group selected from the group consisting of a nitro group, a cyano group, a hydroxy group, an acetyl group, a carbonyl group, a substituted or unsubstituted allyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, an unsubstituted or substituted aryl group, an unsubstituted or substituted aryloxy group, a heterocyclic ring structure-containing group, and a group having a plurality of rings. At least two groups selected from the group consisting of R to R 3 may be bonded to each other to form a cyclic structure with carbon atoms to which the groups are bonded.

1 : A photocurable composition comprising:
 (A) a compound having an unsaturated double bond;   (B) at least one compound selected from the group consisting of compounds represented by general formulae (1), (2), and (3); and   (C) a sensitizer,   
       
         
           
           
               
               
           
         
         where R 1  to R 3  are each independently a substituent containing at least one group selected from the group consisting of a nitro group, a cyano group, a hydroxy group, an acetyl group, a carbonyl group, a substituted or unsubstituted allyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, an unsubstituted or substituted aryl group, an unsubstituted or substituted aryloxy group, a heterocyclic ring structure-containing group, and a group having a plurality of rings; provided that at least two groups selected from the group consisting of R 1  to R 3  are optionally bonded to each other to form a cyclic structure with carbon atoms to which the groups are bonded. 
       
     
     
         2 : The photocurable composition according to  claim 1 ,
 wherein the sensitizer (C) is at least one compound selected from the group consisting of a derivative of an aromatic compound, a carbazole derivative, an aromatic carbonyl compound, a benzophenone derivative, a thioxanthone derivative, and a coumarin derivative.   
     
     
         3 : The photocurable composition according to  claim 1 , further comprising (D) at least one compound selected from the group consisting of a metal salt and a metal complex,
 wherein the compound (B) is the compound represented by the general formula (1).   
     
     
         4 : The photocurable composition according to  claim 1 ,
 wherein the photocurable composition maintains a state, in which the photocurable composition is capable of adhesion to an adherend, at least immediately after irradiation with active energy.   
     
     
         5 : A product comprising a cured product obtained by curing the photocurable composition according to  claim 1 .