| abstract |
(57) [Summary] [Purpose] It has excellent hydrolysis resistance, light resistance, chemical resistance, and elasticity, so it can be used in various fields such as apparel and textiles for clothing, industrial use, and miscellaneous goods. The present invention provides a polyolefin fiber that can be preferably used in. [Composition] A copolymer obtained by copolymerizing a cyclic olefin and an α-olefin, which has a glass transition temperature (T Fibers are formed from a cyclic olefin-based copolymer whose g) is 50 ° C. or lower. |