| 摘要 |
The invention relates to resole resin varnishes in largely non-aqueous organic solvents, especially lower alkanols. The resole resins are produced by reacting, under basic aqueous conditions, formaldehyde with a phenol mixture which has been prepared by partial alkylation of phenol with a specific mixture of carbocyclic compounds containing between eight and 13 carbon atoms. The resulting resole resin is then dissolved in organic solvent. The resulting solutions are useful as varnishes in the manufacture of impregnated sheets, laminates, and other reinforced plastics.
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