EPOXIDE BINDER FOR REINFORCED PLASTICS Russian patent published in 2003 - IPC

FIELD: binding agents. SUBSTANCE: epoxide binder for impregnating press materials, glass and carbon plastics processed by direct pressing and dry reeling techniques contains, wt parts: epoxytriphenol resin 100, aniline-phenol-formaldehyde resin (hardener) 35- 60, low-molecular butadiene-acrylonitrile rubber with terminal carboxyl groups (modifier) 10-50, bis[3-(3,5-di-tert-butyl-4- hydroxyphenyl)propyl] sulfide (hardening accelerator and structure-forming agent) 1-5, and 1:1 ethanol-acetone mixture 90-200. EFFECT: enabled manufacture of noncohesive bound products with prolonged life time and also large-size objects with minimum porosity, good strength characteristics, and low water absorbance. 3 tbl, 11 ex