UNSATURATED POLYESTER RESIN COMPOSITION AND ENCAPSULATED MOTOR
    1.
    发明公开
    UNSATURATED POLYESTER RESIN COMPOSITION AND ENCAPSULATED MOTOR 有权
    VERKAPSELTER电机UNGESÄTTIGTEPOLYESTERHARZZUSAMMENSETZUNG

    公开(公告)号:EP2447293A1

    公开(公告)日:2012-05-02

    申请号:EP09846551.1

    申请日:2009-11-19

    IPC分类号: C08F283/01 H02K3/30 H02K5/08

    摘要: Provided is an unsaturated polyester resin composition comprising 100 parts by mass of an unsaturated polyester resin (a) 400 to 1,000 parts by mass of a mixture of an inorganic filler (b) having a thermal conductivity coefficient of 20 W/m·K or more and aluminum hydroxide (c); 20 to 300 parts by mass of a glass fiber (d) having a fiber length of 1.5 mm or less; and 15 to 50 parts by mass of a low profile additive (e), the inorganic filler (b) and the aluminum hydroxide (c) being mixed at a mass ratio of 80:20 to 20:80, in which the unsaturated polyester resin composition further includes an alkyl peroxyalkylate-based curing agent (f) represented by the following formula (1):

    wherein R represents an alkyl group; and R' represents an alkyl group having 3 or more carbon atoms, and a polymerization inhibitor (g). The unsaturated polyester resin composition yields a cured product having a low shrinkage ratio, a low linear expansion coefficient, and a high thermal conductivity coefficient, and is excellent in in-mold flowability and curability.

    摘要翻译: 提供一种不饱和聚酯树脂组合物,其包含100质量份不饱和聚酯树脂(a)400至1,000质量份的导热系数为20W / m·K以上的无机填料(b)的混合物 和氢氧化铝(c); 20〜300质量份的纤维长度为1.5mm以下的玻璃纤维(d) 和15〜50质量份的低分子添加剂(e),无机填料(b)和氢氧化铝(c)以80:20〜20:80的质量比混合,其中不饱和聚酯树脂 组合物还包含由下式(1)表示的烷基过氧烷基化物基固化剂(f):其中R表示烷基; R'表示碳原子数3以上的烷基,阻聚剂(g)。 不饱和聚酯树脂组合物产生具有低收缩率,低线性膨胀系数和高导热系数的固化产物,并且模内流动性和固化性优异。