| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyarylene sulfide composition that can be readily injection molded into parts having a variety of shapes and sizes and has improved crystallization properties.SOLUTION: Provided is a thermoplastic composition that comprises a polyarylene sulfide, and a nucleating system that comprises an inorganic crystalline compound and an aromatic amide oligomer having a specific structure, wherein the aromatic amide oligomer preferably has a molecular weight of 50 to 2000 g/mol.EFFECT: Due to the improved crystallization rate, the thermoplastic composition can be molded at lower temperatures to still achieve the same degree of crystallization. In addition to minimizing the energy requirements of the molding operations, the use of lower temperatures can also decrease the production of "flash" normally associated with high temperature molding operations. The composition may also possess good viscosity properties that allow it to be readily molded into parts of a variety of different shapes and sizes.SELECTED DRAWING: Figure 1 |
