VERFAHREN ZUR HERSTELLUNG VON EPOXIDIERTEM ORGANISCHEM POLYMER, THERMOPLASTISCHE HARZZUSAMMENSETZUNG, PRIMERZUSAMMENSETZUNG, NICHT-VULKANISIERTE KAUTSCHUKZUSAMMENSETZUNG, KAUTSCHUKFORMMASSEN UND VERFAHREN ZU DEREN HERSTELLUNG

摘要

The first invention provides a process for preparing an epoxidized organic polymer by dispersing or suspending a solid organic polymer in an organic solvent and epoxidizing the dispersed or suspended polymer with a peroxide. The epoxidized polymer thus obtained is usable for coating materials, resin modifiers, rubber modifiers or adhesives, thus being extremely useful. The second invention provides a thermoplastic resin composition having improved mechanical strength, and comprising a thermoplastic resin, an epoxidized EPDM and an acid anhydride. The third invention provides a primer composition comprising 100 parts by weight of an epoxidized EPDM and 50 to 70 parts by weight of a product of chlorination of a polyolefin modified with an unsaturated carboxylic acid or an anhydride thereof. The fourth invention provides an unvulcanized rubber composition comprising an epoxidized EPDM, a diene polymer and a vulcanizing agent, and a process for producing rubber moldings by extruding the unvulcanized rubber composition and vulcanizing the extrudate.