New Heat-Proof Methylphenylsiloxane Resins and High Temperature Resisting Enamels on Their Basis

New heat resistant methylphenylsiloxane resins produced by methyltriethoxysilane and oligophenylsilsesquioxane acidolysis were investigated. The synthesized resins are characterized by narrow molecular-mass distribution, higher thermal and thermal oxidative stability, reduced gelation period as compared to starting oligophenylsiloxane characteristics. Based on the produced resins high temperature resisting enamels with the improved properties: coating impact strength, heat resistance, proportional liquid (water, gasoline, industrial oil) action resistance were developed.