| 摘要 |
PROBLEM TO BE SOLVED: To provide a fiber reinforced resin molded article in which polyester extra-fine fiber is uniformly dispersed. SOLUTION: The fiber reinforced resin molded article including island components of sea-island type composite fiber as reinforcing fiber fulfills the following requirements: (a) the sea-island type composite fiber has polypropylene resin as sea components and polyester as the island components; (b) the number of island components in a cross section orthogonal to the fiber axis of the sea-island type composite fiber is 100 or more; (c) the diameter of the island component is 10-1,000 nm, and (d) the fusing point of polyester of the island components is 200°C or higher. COPYRIGHT: (C)2011,JPO&INPIT |
