发明授权
- 专利标题： No-bake foundry mixes and their uses
- 专利标题（中）： 不烘烤铸造混合料及其用途
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申请号： US196976申请日： 1998-11-20
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公开(公告)号： US6005021A公开(公告)日： 1999-12-21
- 发明人: Chia-hung Chen , Thomas E. Dando
- 申请人： Chia-hung Chen , Thomas E. Dando
- 申请人地址： KY Russell
- 专利权人： Ashland Inc.
- 当前专利权人： Ashland Inc.
- 当前专利权人地址： KY Russell
- 主分类号： B22C1/22
- IPC分类号： B22C1/22 ; C08G18/66
摘要：
This invention relates to polyurethane-forming foundry binder systems and foundry mixes which comprise a foundry aggregate, said foundry binder system, and a liquid amine curing catalyst. The binder system comprises a polyol component containing a polyether polyol and a monomeric glycol, and an organic polyisocyanate component. The foundry mixes are used to prepare foundry shapes made from foundry mixes by a no-bake process.
公开/授权文献
- US5468297A Wafer boat for supporting silicon wafers 公开/授权日：1995-11-21