| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a solid resol type phenol resin that contains substantially no unreacted monomer and no mono-nucleus component or exceedingly reduces the amount of an unreacted monomer and a mono-nucleus component. SOLUTION: The method for producing a solid resol type phenol resin having≤1 wt.% of a phenol monomer residue comprises reacting a novolac type phenol resin having 300-600 number-average molecular weight and≤1 wt.% of free phenol with an aldehyde and a triazine in the presence of a catalyst. COPYRIGHT: (C)2006,JPO&NCIPI
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