| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a specific polymerized rosin glycidyl ester from the point of view of environment consideration or property and physical property, and to apply the polymerized rosin glycidyl ester to various applications as a raw material, a modifier, a crosslinking agent and the like for a synthetic resin such as an alkyd resin or polyester and the like, or an adhesive agent, a coating material or a compounding agent for molding material, and further an environment friendly epoxy resin.SOLUTION: A polymerized rosin glycidyl ester having a color tone containing 60 wt.% or more of a diepoxy component having a specific structure of Gardner 3 or less, a softening point of 65 to 120°C and an epoxy equivalent of 300 to 400 g/eq is used.</p> |
