| 摘要 |
PROBLEM TO BE SOLVED: To provide polyamide particles which are in the form of an oval, a cylinder, a dumbbell or a hand drum and have an appropriate porosity, and its manufacturing method. SOLUTION: The polyamide particles have a particle length of 0.5-25μm, L/D (particle length/particle diameter) of 3-50, and a specific surface area of 0.1-10 m<SP>2</SP>/g. The polyamide particles are composed of a polyamide to be synthesized from 50-100 wt.% amide-forming monomer (A) and 0-50 wt.% amide-forming monomer (B), and the amide-forming monomer (A) is a 9-22C amide-forming monomer, and the amide-forming monomer (B) is a 2-8C amide-forming monomer. COPYRIGHT: (C)2004,JPO |
