| 摘要 |
PROBLEM TO BE SOLVED: To provide fine particles of a polyacrylonitrile based polymer useful as an additive for paints mainly for the purpose of improving decorative characteristics such as matte effect. SOLUTION: There are provided fine particles of a polyacrylonitrile based polymer in which acrylonitrile is copolymerized in an amount of 80 wt.% or more, an average particle size is 3-200 μm, a spherical degree is 30-90 and an intra-particle porosity is 0.1-0.4; a paint composition obtained by mixing the above polymer fine particles in an amount of 1-60 wt.% relative to a sold content of a paint; and a paint film having improved decorative characteristics and/or a resistance to weather obtained by applying and baking the said paint composition. COPYRIGHT: (C)2003,JPO
|
