| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a polyester fiber excellent in creep property and having small heat shrinkage. <P>SOLUTION: There is provided a polyester fiber contains 100 pts.mass polyester resin, and a polyester resin composition containing 0.001-1 pts.mass nucleating agent for polyester resin, composed of a sulfonamide compound metal salt or a sulfonimide compound metal salt. The nucleating agent for polyester resin is preferably one selected from the group consisting of a benzenesulfonamide metal salt, a toluene-4-sulfonamide metal salt, a N-phenyl-4-benzenesulfonamide metal salt, a N-phenyl-4-methyl-benzenesulfonamide metal salt, and a 1, 2-benzisothiazol-3(2H)-one 1, 1-dioxide metal salt. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
