| http://www.w3.org/ns/prov#value | - The condensation reaction can be carried out according to the usual manner, for example, at a temperature within a range of 60 to 120??? C. for 2 to 30 hours. [0013] It is preferred that the amount of low-molecular weight components of the novolac resin obtained by the condensation is reduced by a treatment such as fractionation.
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