METHOD OF MANUFACTURE OF PRODUCTS OF THERMOSETTING PLASTICS Russian patent published in 1997 - IPC

FIELD: processing of plastic materials to articles, applicable in injection moulding of thermosetting plastics. SUBSTANCE: the method consists in plasticization of material in a moulding press and injection of it into heated mould cavities. During injection the material is heated to a temperature of not below the temperature of the mould cavities, but not exceeding the temperature of thermal destruction according to the condition proceeding from the equality of material lifetime and injection time. EFFECT: enhanced capacity of the process of injection moulding of thermosetting plastics due to reduction of the moulding cycle time. 2 cl, 1 tbl