Ultraviolet-curable silicone composition containing a polyorganosiloxane terminated with a silanol group at both ends or an alcohol-modified polyorganosiloxane

摘要

An ultraviolet-curable silicone composition involving: (A) 100 parts by weight of a polyorganosiloxane comprising structural units represented by the general formula R1mR2nSiO(4-m-n)/2; (B) from 0.1 to 10 parts by weight of a polyorganosiloxane which is blocked by (OH)R32Si+E,fra 1/2+EE at both ends or (b) an alcohol-modified polyorganosiloxane containing two or more alcoholic OH groups per molecule; and (C) a catalytically effective amount of an onium salt as a photoinitiator.