| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a carboxy group-containing lactone polyester unsaturated monomer that is excellent in flexibility, stickiness, reactivity and other properties, contains neither reaction by-products resulting from a transesterification reaction or the like nor impurities such as metal components, has controlled discoloration of the products and causes no deterioration in safety and performances. SOLUTION: The manufacturing method of the carboxy group-containing lactone polyester unsaturated monomer comprises causing a lactone compound to react with a polymerizable unsaturated monomer bearing a carboxy group in the presence of an activated carbon catalyst. COPYRIGHT: (C)2007,JPO&INPIT
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