| 摘要 |
PROBLEM TO BE SOLVED: To provide an alkylene oxide-modified (meth) acrylate and a reactive composition containing the same in which a handling property, a curing shrinkage ratio, photosensitivity, surface hardness, contamination resistance, etc. are improved.SOLUTION: A composition shown by (I) or a reactive composition containing the same is provided [in the formula, R expresses -COCH=CHor -COCCH=CH, AO indicates one sort or more selected from -CHCHO-, -CHCH(CH)O-, -CHCHCHCHO-, and -CHCH(CH)O-, the average degree of polymerization (l) of AO is 0<l≤5, the average value of m is 0<m≤6, the average values of n and o are each 0 to 6, and m+n+o=6]. |
