TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The adhesive composition further comprises photosensitizer (D). The boron-containing salt is preferably of formula: (R10-B(-R9)(-R11)-R12)-.Z+ (II) or salt of formula (II). The photopolymerization initiator (D) is carbonyl group-containing compounds of formulae (V) and (VI), fluorene compounds of formulae (VII) and (VIII), benzyl ketal-type radical photopolymerization initiator, ( alpha )-hydroxy acetophenone-based radical photopolymerization initiator, benzoin-type radical photopolymerization initiator, aminoacetophenone-type photoinitiator, ketone oxime-based radical photopolymerization initiator, acylphosphine oxide-type radical photopolymerization initiator, radical polymerization initiator chosen from carbonyl group-containing compound of formula (IX), aromatic hydrocarbon chosen from naphthalene derivative and anthracene derivative, nitrobenzoic acid and nitro compound chosen from nitroaniline, or pigment chosen from riboflavin, rose bengal, eosin, Erisys (RTM: epoxidized resorcinol), methylene blue and methylene blue rose.R5-R8=H, halo, hydroxy, linear or branched 1-20C alkyl, 3-20C cycloalkyl, 6-20C aryl, 1-20C alkoxy, carboxy, aldehyde, amino, imino, cyano, sulfonic acid, -COORp, -CONRpRq, -CONRpCORq, -SO2Rp, nitro or -S-Rp;Rp,Rq=1-20C alkyl or 6-20C aryl (both optionally substituted);a,b,c,d=0-4;Z+=quaternary ammonium cation chosen from 1,8-diazabicyclo(5.4.0)undec-7-ene, 1,5-diazabicyclo(4.3.0)non-5-ene, triazabicyclodecene, hexahydro methyl pyrimidopyrimidine and tetra-n-butylammonium, alkali-metal cation chosen from sodium cation, potassium cation and lithium cation, or phosphonium cation, preferably (R14-P(-R13)(-R15)-R16)+;R9-R11=optionally substituted aryl;R12=1-20C alkyl;R13-R16=H, halo, or aryl or 1-20C alkyl (all optionally substituted);R17-R27=H, halo, hydroxy, linear or branched 1-20C alkyl, 3-20C cycloalkyl, 6-20C aryl, 1-20C alkoxy, carboxy, aldehyde, amino, imino, cyano, sulfonic acid, nitro, thiol, isocyanate, -S-Rp, -SO2Rp, -COORp, -CONRpRq or -CONRpCORq;n=1-12;b',c'=0-3;anda'=0-5.