Latent, thermal cure accelerators for epoxy-aromatic amine resins having
lowered peak exotherms
    44.
    发明授权
    Latent, thermal cure accelerators for epoxy-aromatic amine resins having lowered peak exotherms 失效
    具有降低的峰值放热的环氧 - 芳族胺树脂的潜在的热固化促进剂

    公开(公告)号:US5541000A

    公开(公告)日:1996-07-30

    申请号:US269881

    申请日:1994-07-01

    摘要: A thermally-curable aromatic amine-epoxy composition comprises(a) at least one polyepoxy compound;(b) a curing amount of at least one aromatic polyamine compound; and(c) a catalytically effective amount of at least one cure accelerator compound which is a .pi.-electron acceptor, and which lowers the cure exotherm peak temperature (as measured by differential scanning calorimetry (DSC) at 10.degree. C. per minute) of the composition by at least about 8 percent relative to the corresponding composition without the cure accelerator. Such accelerator compounds moderate and/or accelerate the thermal curing of aromatic amine-epoxy resins, enabling cure to occur at lower temperatures and/or in shorter time periods than those required for the unaccelerated composition.

    摘要翻译: 一种可热固化的芳族胺 - 环氧组合物包含(a)至少一种聚环氧化合物; (b)固化量的至少一种芳族多胺化合物; 和(c)催化有效量的至少一种作为π-电子受体的固化促进剂化合物,并且降低固化放热峰温度(通过差示扫描量热法(DSC)在10℃/分钟测量) 该组合物相对于没有固化促进剂的相应组合物至少约8%。 这种促进剂化合物适中和/或加速芳族胺 - 环氧树脂的热固化,使得固化可以在不加速组合物所需的温度和/或更短的时间内发生。