Patent ID: 7807088

Claim:
Polyvinylidene fluoride resin powder for melt molding by injection molding or extrusion molding in a state of the resin powder, which has such powder characteristics (a) to (c) that (a) the resin powder exhibits, as determined by a dry sieving method in accordance with JIS K 0069, such particle size distribution characteristics that i) an average particle diameter indicated by a 50% cumulative value (D 50 ) in a particle size cumulative distribution is 80 to 250 μm, ii) a proportion of resin powder having a particle diameter of at most 45 μm is at most 3.0% by weight, iii) a proportion of resin powder having a particle diameter of at least 355 μm is at most 5.0% by weight, and iv) a value [(D 80 -D 20 )/D 50 ] obtained by dividing a particle diameter breadth (D 80 -D 20 ) represented by a difference between a 80% cumulative value (D 80 ) and a 20% cumulative value (D 20 ) in the particle size cumulative distribution by the 50% cumulative value (D 50 ) is at most 0.8, (b) a bulk density is 0.40 to 0.70 g/cm 3 , and (c) an angle of repose is at most 35°.