发明名称 |
Resol phenolic resin binder for hot coating of foundry sand |
摘要 |
A phenolic resin binder useful for hot coating foundry sand and comprising a mixture of a solid resol phenolic resin and a lubricant is provided in the form of beads or rods of diameter of about 0.5 to 7 mm and a length of about 0.5 to 30 mm. The beads or rods can be formed directly from a molten mixture of the components or the molten mixture can first be solidified and thereafter formed into such beads or rods. The process for the hot coating of foundry sand with the phenolic resin binder and the resulting foundry compositions, molds and cores are also disclosed.
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申请公布号 |
US4345003(A) |
申请公布日期 |
1982.08.17 |
申请号 |
US19800212936 |
申请日期 |
1980.12.04 |
申请人 |
SUMITOMO DUREZ COMPANY, LTD. |
发明人 |
MATSUSHIMA, NORIAKI;NEMOTO, SHIGERU |
分类号 |
C08L61/00;B22C1/22;C08K5/00;C08L7/00;C08L21/00;C08L23/00;C08L61/04;C08L61/06;C08L101/00;(IPC1-7):B32B27/14;B05D7/00;C08L91/06 |
主分类号 |
C08L61/00 |
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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