Abstract
Currently, compositions based on a mixture of phenol-formaldehyde resins of the resole and novolac types are of considerable interest. In the first part of the review examples of the use of resole-novolac phenol-formaldehyde resins in adhesive compositions, prepregs, fiberglass plastics and refractory masses are given. The advantages of using resole-novolac compositions in comparison with resole and novolac phenol-formaldehyde oligomers by increasing the physical and mechanical characteristics, fire resistance and fireproof properties are shown.
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