Ultraviolet-curable composition and use thereof

Abstract

Provided is a UV curable composition containing a silicon atom, that allows easy adjustment of the mechanical properties of the molded product obtained by curing, and excellent workability when applied to a substrate, even as a solvent-free type. The UV curable composition comprises: (A) 5 to 95 parts by mass of a compound having one or more acryloxy group in a molecule; and (B) 95 to 5 parts by mass of one or more type of organopolysiloxane without a UV curable functional group selected from (B1) and (B2); (B1) organopolysiloxane having three or more alkenyl groups in one molecule and no UV curable functional groups; (B2) organopolysiloxane having two or more alkenyl groups in one molecule but not having a UV curable functional group. The composition is substantially free of organic solvents, and the viscosity of the entire-composition measured at 25° C. using an E-type viscometer is 500 mPa·s or less.

Dependencies are inferred from the claim text.