发明名称 |
Thermally stable, high temperature, samarium cobalt molding compound |
摘要 |
A magnetic compound is formed comprising: (1) 25% to 50% by volume of polyphenylene sulfide (PPS); (2) 50% to 70% by volume of coated samarium cobalt (the coating comprising 1 to 30% Kaolin by weight of the coating and 70 to 99% potassium silicate by volume of the coating); and (3) 0% to 5% by volume of an internal lubricant. The PPS polymer component of the compound renders the compound amenable to be injection molded to precise tolerances and also has a low coefficient of linear thermal expansion. The samarium cobalt constituent of the compound provides thermal stability. The potassium silicate/kaolin coating separates the PPS from the samarium cobalt, thus preventing degradation (i.e, PPS viscosity reduction) during manufacture.
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申请公布号 |
US6737451(B1) |
申请公布日期 |
2004.05.18 |
申请号 |
US20010951683 |
申请日期 |
2001.09.13 |
申请人 |
ARNOLD ENGINEERING CO., LTD. |
发明人 |
CARLBERG JAMES;NASTAS PAUL R. |
分类号 |
C08K5/098;C08K9/02;H01F1/055;H01F1/057;H01F1/06;H01F1/08;(IPC1-7):C08K9/02;C08K3/10;H01F1/24;H01F1/147 |
主分类号 |
C08K5/098 |
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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