Provided are: a cocondensate having a softening point of 150 DEG C or lower and containing a structural unit derived from p-tert-butylphenol, a structural unit derived from o-phenylphenol, and a structural unit derived from resorcin; a method for producing the cocondensate by reacting a mixture of p-tert-butylphenol and o-phenylphenol with formaldehyde in the presence of an
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