Abstract: [Problem] To provide a coating film which is capable of maintaining good water repellency and antifouling properties. [Solution] A photopolymerizable coating composition which contains, as photopolymerizable components, a urethane (meth)acrylate (component (a)) and a photopolymerizable (meth)acrylic compound (component (b)), and which is configured such that: from 1% by weight to 50% by weight (inclusive) of the component (a) and from 50% by weight to 99% by weight (inclusive) of the component (b) relative to the total amount of the photopolymerizable components are mixed; and the component (b) contains a photopolymerizable acrylic compound (component (b1)) which has a structural unit derived from a fluorosilsesquioxane derivative represented by formula (1), a reactive silicone (component (b2)) and a photopolymerizable acrylic compound (component (b3)) which has no urethane unit, no fluorine atom and no Si atom.

Abstract: A coating that maintains favorable water-repelling and stain-proofing properties is provided. A photopolymerizable coating composition includes a component (a): a urethane (meth)acrylate and a component (b): photopolymerizable (meth)acrylic compounds, as photopolymerizable components, wherein the component (b) includes a component (b1): a photopolymerizable acrylic compound having a structural unit derived from a fluorosilsesquioxane derivative represented by the following Formula (1); a component (b2): a fluorine surfactant, and a component (b3): a photopolymerizable acrylic compound having no urethane units and having no fluorine atoms.

Abstract: The art relates to provision of a method for manufacturing an (meth)acrylic polymerizable monomer that can be used in various applications, such as an optical material, a resist material, a coating material and a laminate material, and provision of a new ?-(meth)acryloyloxy-?-butyrolactone compound by applying the manufacturing method. The method for manufacturing the ?-(meth)acryloyloxy-?-butyrolactone compound is described, in which a (meth)acrylate compound having a carbonyl group and a ketene compound are condensed and isomerized. Further, the manufacturing method is applied to the new ?-(meth)acryloyloxy-?-butyrolactone compound.

Abstract: The art relates to provision of a method for manufacturing an (meth)acrylic polymerizable monomer that can be used in various applications, such as an optical material, a resist material, a coating material and a laminate material, and provision of a new ?-(meth)acryloyloxy-?-butyrolactone compound by applying the manufacturing method. The method for manufacturing the ?-(meth)acryloyloxy-?-butyrolactone compound is described, in which a (meth)acrylate compound having a carbonyl group and a ketene compound are condensed and isomerized. Further, the manufacturing method is applied to the new ?-(meth)acryloyloxy-?-butyrolactone compound.