Patent ID: 6689465
Filing Date: 2004-02-10
Classification: C08J,Y10T

Abstract:
Substantially spherical porous beads of an aromatic polyether ketone resin, which have all of the following characteristics:(1) said porous beads have an average particle diameter of 50 to 5,000 &mgr;m, (2) said porous beads have a porosity of 40 to 99%, (3) said porous beads have continuous pores in a three-dimensional network, (4) said porous beads are smooth, (5) said porous beads are skinless, and (6) said porous beads have fibrils constituting the matrix of said porous beads having the three dimensional pore structure, wherein ratio of the average thickness of the fibrils at a peripheral portion of the beads to the average thickness of the fibrils at an inner portion of the beads is 1.1 or more.