| 摘要 |
PROBLEM TO BE SOLVED: To obtain an additive for a polyester resin that can increase the crystallization speed of the polyester resin, a polyester resin composition containing the same and a method for producing the composition. SOLUTION: The additive for the polyester resin contains an inorganic compound that has a crystal system selected from hexagonal system, isometric system, tetragonal system, trigonal system, and rhombic system; and at least one of the lattice constants of 7 to 15 angstroms in the axes a, b, and c; the polyester resin, the polyester resin composition containing the additive, and the method for producing the composition are contained in this invention. COPYRIGHT: (C)2006,JPO&NCIPI
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