| 发明名称 |
Method for manufacturing foundry molds |
| 摘要 |
A method for manufacturing foundry molds, which comprises preforming a foundry sand mixture comprising sand, a resol type phenol-formaldehyde resin, a solvent, and optionally, a curing agent for said resin, or a curing agent for said resin and a thermoplastic resin; and thereafter removing the solvent from the preformed mixture by evaporation.
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| 申请公布号 |
US4097443(A) |
申请公布日期 |
1978.06.27 |
| 申请号 |
US19750627413 |
申请日期 |
1975.10.30 |
| 申请人 |
SUMITOMO DUREZ COMPANY, LTD. |
发明人 |
NAKAMURA, MASAYUKI;SANUKI, SETSUO |
| 分类号 |
B22C1/10;B22C1/22;B22C9/02;B22C9/06;C08L61/06;C08L61/10;(IPC1-7):C08K3/36 |
主分类号 |
B22C1/10 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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