Alkali-soluble uv-curable organopolysiloxane, uv-curable composition including same, and use therefor

Abstract

Provided is a UV-curable organopolysiloxane and a UV-curable composition containing the UV-curable organopolysiloxane, that have high UV curability and good alkaline solubility, without using a multifunctional polymerizable monomer, and for which cured products thereof (e.g., cured films) have sufficiently high mechanical strength and favorable transparency. The UV-curable organopolysiloxane and the UV-curable composition containing the UV-curable organopolysiloxane have one or more monovalent functional groups having both a hydrophilic group and a UV curable group, bonded to a silicon atom in one molecule, and have solubility in aqueous alkaline solutions as a whole organopolysiloxane.

Dependencies are inferred from the claim text.