Patent ID: 9657139
Date: 2017-05-23
CPC Classifications: C07C,C08G

Claim:
1. A method for producing a liquid resol-type phenolic resin, wherein the method comprises: mixing a phenol (A), a secondary and/or tertiary alkylamine compound (B) and a basic catalyst, and reacting the phenol (A), and the secondary and/or tertiary alkylamine compound (B) in presence of the basic catalyst, wherein the method does not use an aldehyde as a starting material, wherein the tertiary alkylamine compound is at least one selected from the group consisting of triethylamine, tetramethylethylenediamine and hexamethylenetetramine, and wherein a reaction temperature is from 50 to 110° C., wherein the phenol (A) and the secondary and/or tertiary alkylamine compound (B) are reacted in a molar ratio that satisfies (B)/(A)=0.13 to 0.35.