abstract |
THE MELT FLOW OF THERMOPLASTIC POLYNARYLENE SULFIDE) RESINS CAN BE DECREASED BY HEATING AT A TEMPERATURE BELOW THE MELTING POINT OF THE POLYMER IN THE PRESENCE OF CERTAIN MELT FLOW MODIFIERS, E.G., SULFUR. AROMATIC SULFIDE POLYMERS TREATED IN ACCORDANCE WITH THE INVENTION RETAIN THEIR THERMOPLASTIC NATURE AND CAN BE USED IN A VARIETY OF INDUSTRIAL APPLICATIONS, E.G., AS MOLDING COMPOSITIONS. |