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    • 7. 发明申请
    • POWDER COATING COMPOSITION
    • 粉末涂料组合物
    • WO1997022671A1
    • 1997-06-26
    • PCT/JP1996003671
    • 1996-12-16
    • DAIKIN INDUSTRIES, LTD.TSUDA, NobuhikoIWAKIRI, Ryuzi
    • DAIKIN INDUSTRIES, LTD.
    • C09D05/03
    • C09D127/16C08F259/06C08L27/16C08L33/12C09D133/12Y10S525/934Y10T428/2982Y10T428/2998C08F220/14C08L2666/04
    • A powder coating composition which is excellent in the dispersion of pigment, weathering resistance, appearance, and stain resistance and is particularly so excellent in bending resistance as to be usable in the field of PCM, giving precoat metal sheets which little cause cracking in the bending of the sheets. Specifically, a powder coating composition essentially composed of a powdery material which comprises 100 parts by weight of a Vdf copolymer having a melting point of 150 DEG C or below, a crystallinity of 35 % or below and a weight-average molecular weight (Mw) of 1 x 10 to 5 x 10 and 100 to 400 parts by weight of an MMA copolymer having a glass transition point of 110 DEG C or below and an Mw value of 1 x 10 to 5 x 10 , the particles of which have a mean particle diameter of 1 to 100 mu m and which has an apparent density of 0.2 to 1 g/ml.
    • 一种粉末涂料组合物,其颜料分散性,耐候性,外观和耐污染性优异,并且在PCM领域中的抗弯曲性特别优异,得到在弯曲中几乎不引起裂纹的预涂金属片 的床单。 具体而言,粉末涂料组合物基本上由粉末状材料构成,该粉末状材料包含100重量份的熔点为150℃以下,结晶度为35%以下,重均分子量(Mw)的Vdf共聚物, 的1×10 4至5×10 5和100至400重量份的玻璃化转变温度为110℃或更低的Mw值为1×10 4至5×10 5的MMA共聚物 10 5,其颗粒的平均粒径为1〜100μm,表观密度为0.2〜1g / ml。