| 摘要 |
<p>Granules containing 60 wt. % or more filler, having such particle size distribution that 90 wt. % or more granular particles have a particle size of (1/3)d50b to 3d50b (d50b: mean particle size of the granules), and being produced by blending (a) 60 to 90 parts by weight of a filler having a mean particle size of 0.05 to 100 mu , (b) 5 to 35 parts by weight of crystalline polyolefin powder having a mean particle size (d50a) of 150 to 1,000 mu and having such particle size distribution that 90 wt. % or more particles thereof have a particle size of (1/2)d50a to 2d50a, (c) 5 to 35 parts by weight of a binder having a melting point lower than that of said crystalline polyolefin powder by a least 10 DEG C., and optionally, (d) a compounding additive, at a temperature lower than the melting point of the crystalline polyolefin powder and higher than the melting point of the binder, is disclosed.</p> |
