| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a phenol-based curing agent that has fluidity even at a low temperature, is low-temperature curable, has excellent coating properties and filling properties and improves thermal stress relaxation characteristics without impairing heat resistance of an obtained cured product. <P>SOLUTION: The phenol-based curing agent is a copolymer that includes a specific vinylphenol and a vinyl ether represented by formula 2 [wherein R<SB>2</SB>is a substituent or unsubstituted hydrocarbon group] and contains two or more phenolic hydroxy groups in one molecule. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
