| 摘要 |
PURPOSE:To obtain a compsn. superior in strippability of the hardened film and hardenability, by mixing the monoester compd. of an acid anhydride and a monomer having a hydroxyl group and a (meth)acryloyl group, dicyclopentenyloxyalkyl (meth)acrylate, and a photosensitizer. CONSTITUTION:The compsn. consists of (A) a monoester compd. of an acid anhydride having general formula I where R is H or CnH2n+1, n=1-4, and a monomer having at least one hydroxyl group and at least one (meth)acryloyl group in the molecule, (B) dicyclopentenyloxyalkyl (meth)acrylate, and (C) a photosensitizer. As said monoester compd. (A), a compd. of said monomer and an acid anhydride, such as hexahydrophthalic anhydride or 3-methylhexahydrophthalic anhydride, is preferable. As (B) dicyclopentenyl (meth)acrylate, dicyclopentenyloxyethyl (meth)acrylate, etc. are usable. As (C), benzoyn theyl and butyl ethers, etc. are usable. |
