Foundry core compositions
    1.
    发明授权
    Foundry core compositions 失效
    铸造核心组成

    公开(公告)号:US4487868A

    公开(公告)日:1984-12-11

    申请号:US497961

    申请日:1983-05-25

    IPC分类号: B22C1/22 C08G16/02 C08L1/28

    CPC分类号: B22C1/2233 C08G16/0262

    摘要: A foundry core composition containing a rapid-curing furfuryl alcohol and phenolic resole resin system useful in the "hot-box" process is provided. This composition includes an acidic curing agent of low toxicity whose catalytic activity is enhanced by the presence of a water-soluble polymeric polyhydroxy compound.

    摘要翻译: 提供了一种含有快速固化糠醇和酚醛树脂树脂体系的铸造芯组合物,可用于“热箱”工艺。 该组合物包括低毒性的酸性固化剂,其催化活性通过水溶性聚合多羟基化合物的存在而增强。