| 发明名称 |
Treatment for reducing residual carbon in the lost foam process |
| 摘要 |
The evaporative casting of molten metals has been shown to produce castings having smooth surfaces with significantly less signs of carbon deposits thereon by using an expandable vinyl aromatic polymer containing a bromine-attached aliphatic or aromatic flame retardant.
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| 申请公布号 |
US6303664(B1) |
申请公布日期 |
2001.10.16 |
| 申请号 |
US19990430544 |
申请日期 |
1999.10.29 |
| 申请人 |
STYROCHEM DELAWARE, INC. |
发明人 |
SONNENBERG FRED;TARISTO KYOESTI MATTI;JOHANSSON TOM VERNER JOHANNES |
| 分类号 |
B22C7/02;(IPC1-7):C08J9/18;B22C7/00;B22C1/22 |
主分类号 |
B22C7/02 |
| 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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