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    • 3. 发明申请
    • POLYURETHANE RESIN POWDER COMPOSITION FOR SLUSH MOLDING
    • 聚氨酯树脂粉末组合物
    • US20130261240A1
    • 2013-10-03
    • US13793179
    • 2013-03-11
    • SANYO CHEMICAL INDUSTRIES, LTD.CALSONIC KANSEI CORPORATION
    • Shu YasuharaYasuhiro TsudoKoichi SaitoMasaaki NamikiNaohito JinnaiShigeji IchikawaMasaaki Tamura
    • C08L33/12C08L75/04
    • C08L33/12C08G18/12C08G18/2825C08G18/4202C08G18/73C08G2140/00C08L33/14C08L75/04C08L2205/22C08L2312/00C08G18/3256
    • Provided is a polyurethane resin powder composition for slush molding from which an outer skin for an instrument panel can be produced, the outer skin not interfering with deployment of an airbag. More specifically, provided is a polyurethane resin powder composition (D) for slush molding comprising perfectly spherical thermoplastic polyurethane resin particles (A) obtained by reacting a polyester diol component (J) and a diisocyanate component (F), a plasticizer (B), and a vinyl-type copolymer fine particles (C) having a crosslinked structure, wherein the polyester diol component (J) comprises a polyester diol (J1) comprising an aromatic dicarboxylic acid (E) and ethylene glycol as essential constituent units, a ratio of volume average particle sizes of (A) and (C), (A):(C), is 200:1 to 2000:1, and an extent of surface coverage of a surface of (A) with (C) {Equation (1)} is 20 to 80%. [Expression 1] Extent of surface coverage (%)=[number of particles of (C)]×[average cross section area of one particle of (C)]/surface area of (A)×100   (1)
    • 本发明提供一种用于搪塑的聚氨酯树脂粉末组合物,由此可以制造用于仪表板的外皮,外皮不会妨碍气囊的展开。 更具体地说,提供了一种用于搪塑的聚氨酯树脂粉末组合物(D),包括通过使聚酯二醇组分(J)和二异氰酸酯组分(F)反应获得的完全球形的热塑性聚氨酯树脂颗粒(A),增塑剂(B), 和具有交联结构的乙烯基型共聚物微粒(C),其中所述聚酯二醇组分(J)包含包含芳族二羧酸(E)和乙二醇作为必要组分单元的聚酯二醇(J1),其比例为 (A)和(C),(A):( C)的体积平均粒径为200:1〜2000:1,(A)表面的覆盖程度为(C){式 1)}为20〜80%。 [表达式1]表面覆盖度(%)= [(C)的颗粒数]×((C)的一个粒子的平均截面积)/(A)×100(1)