发明申请
- 专利标题： FOUNDRY BINDER SYSTEMS
- 专利标题（中）： 基金会系统
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申请号： US14001241申请日： 2012-03-20
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公开(公告)号： US20140018468A1公开(公告)日： 2014-01-16
- 发明人: Cristina Maria Schuch , Denilson José Vicentim , Luciane Sereda , Suelbi Silva
- 申请人： Cristina Maria Schuch , Denilson José Vicentim , Luciane Sereda , Suelbi Silva
- 申请人地址： BR Sao Paulo
- 专利权人： RHODIA POLIAMIDA E ESPECIALIDADES LTDA
- 当前专利权人： RHODIA POLIAMIDA E ESPECIALIDADES LTDA
- 当前专利权人地址： BR Sao Paulo
- 优先权： FR1152347 20110322
- 国际申请： PCT/IB12/00539 WO 20120320
- 主分类号： B22C1/22
- IPC分类号： B22C1/22
摘要：
The present invention relates to foundry binder systems forming a curable polyurethane with a catalytically effective amount of a curing catalyst, comprising at least one phenolic resin component comprising at least: a phenolic resin and a solvent of triacetin type and a polyisocyanate component. The invention also relates to foundry mixtures prepared from the binder and an aggregate, to foundry forms such as cores and molds prepared via the no-bake or cold-box processes, and also to the respective processes. The foundry forms obtained by the present invention are especially used for manufacturing metallic components, especially for the casting of metallic components.