2266- Photo-curable urethane acrylate having 2266-tetramethylpiperidine derivatives and process for preparing thereof and photo-curable resin composition containing the same

摘要

PURPOSE: Provided are photo-curable urethane acrylate having 2,2,6,6-tetramethylpiperidine derivatives and showing excellent antiweatherability and compatibility to various kinds of resins and paints and a process for preparing the same, and photo-curable resin composition containing the same. CONSTITUTION: The photo-curable urethane acrylate having a 2,2,6,6-tetramethylpiperidine derivative is characteristically represented by the formula(1), wherein R1, R4 and R6 are individually a hydroxy group or a compound represented by the formula(1a), (1b) or (1c), R2, R3 and R5 are C2-C18 alkylene, cyclohexylene, methylenedicyclohexylene, cyclohexyldimethylene orC4-C18 alkylene having methylene or 1-3 oxygen atoms. In the formula(1a), (1b) or (1c), R7, R8, R9, R10 and R11 are individually hydrogen or methyl, R12 is hydrogen or C1-C18 alkylene, and n is an integer of 1-18, and m is an integer of 1-4.