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    • 6. 发明专利
    • Black pre-expanded particle of polypropylene-based resin
    • 基于聚丙烯树脂的黑色预扩散颗粒
    • JP2008255286A
    • 2008-10-23
    • JP2007101339
    • 2007-04-09
    • Kaneka Belgium NvKaneka Corpカネカ ベルギー ナムローゼ フェンノートシャップKaneka Belgium N.V.株式会社カネカ
    • AIDA TAKAYUKIVAN RAVESTYN PIERRE
    • C08J9/18
    • PROBLEM TO BE SOLVED: To provide black pre-expanded particles of a polypropylene-based resin that do not give rise to friction sounds with high frequency that are offensive to the ear when friction is caused between pre-expanded particles together, foamed molded bodies together or between a foamed molded body and another plastic product, a metal product and the like, and to provide a foamed molded body of a polypropylene-based resin.
      SOLUTION: The black, polypropylene resin based pre-expanded particles, obtained by the pre-expansion of resin particles consisting of a polypropylene based resin composition containing, based on 100 pts.wt. of a polypropylene based resin, ≥10 pts.wt. and ≤30 pts.wt. of a polyethylene based resin, ≥0.1 pt.wt. and ≤2 pts.wt. of a fatty acid amide and ≥1 pt.wt. and ≤10 pts.wt. of carbon black having an average particle size of ≥40 nm, and the foamed molded body obtained by molding the above pre-expanded particles does not generate high frequency frictional sounds that are grating to the ear.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供聚丙烯基树脂的黑色预发泡颗粒,当在预发泡颗粒之间产生摩擦时,不会产生高度刺激耳朵的摩擦声音,发泡 成型体在发泡成型体和其他塑料制品,金属制品等之间或之间,并且提供聚丙烯类树脂的发泡成型体。 解决方案:通过由聚丙烯基树脂组合物组成的树脂颗粒的预膨胀获得的黑色聚丙烯树脂基预发泡颗粒,其包含基于100重量份 的聚丙烯基树脂,≥10重量份 和≤30重量份 的聚乙烯基树脂,≥0.1重量份 和≤2重量 的脂肪酸酰胺和≥1重量% 和≤10pts.wt 的平均粒径≥40nm的炭黑,通过成型上述预发泡粒子得到的发泡成型体不产生向耳朵光栅的高频摩擦声。 版权所有(C)2009,JPO&INPIT