发明名称 |
Resin-coated sand composition and method for producing same |
摘要 |
An improved resin binder for shell-molding operations having improved shake-out properties is disclosed. The resin binder utilizes a lubricant-containing phenolic resin of the novolac or resole type, or a mixture of novolac and resole types, incorporated therewith is an organic chloride. The organic chloride is characterized by having 20% by weight of the heating loss in the temperature range of 130 DEG to 550 DEG C. The organic chloride may be selected from chloride-containing polymers and cyclo-organic chlorides. Chlorinated polymeric material may be selected from polyvinyl chlorides, polyvinyldene chloride resins, chlorinated paraffins and chlorinated polyolefins.
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申请公布号 |
US4452926(A) |
申请公布日期 |
1984.06.05 |
申请号 |
US19820439524 |
申请日期 |
1982.11.05 |
申请人 |
SUMITOMO DUREZ COMPANY, LTD. |
发明人 |
MATSUSHIMA, NORIAKI;SAEKI, YUKIO;KIRABAYASHI, HAJIME |
分类号 |
B22C1/02;B22C1/22;C08K5/03;C08L57/08;C08L61/06;(IPC1-7):C08K5/02 |
主分类号 |
B22C1/02 |
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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