| 摘要 |
Powders of tetrafluoroethylene copolymer having a non-spherical particle shape, a frictional packing ration of 20 to 100 % and an average particle size of 5 to 500 .mu.m, and the tetrafluoroethylene copolymer is a tetrafluoroethylene/ hexafluoropropylene copolymer or a tetrafluoroethylene/ fluoro(vinyl ether) copolymer, and the powders are userful for powder coatings, particularly roto-molding, roto-lining and electrostatic coating, and can provide coatings having a good appearance and no bubble. |
