发明名称 |
Process for extruding low density foam using water blowing agent |
摘要 |
In a process for extruding a low density foam, a foamable thermoplastic elastomer such as a thermoplastic rubber is selected. The selected thermoplastic elastomer is then fed into a heated extruder barrel where it is compressed and melted by the action of a screw. A blowing agent consisting of water is introduced into the melted thermoplastic elastomer. The melted thermoplastic elastomer and the water are thoroughly mixed and then cooled to a uniform, predetermined temperature. The mixture is then forced through a die to form an extruded foam profile.
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申请公布号 |
US5788889(A) |
申请公布日期 |
1998.08.04 |
申请号 |
US19970808482 |
申请日期 |
1997.03.03 |
申请人 |
AMESBURY GROUP, INC. |
发明人 |
DEMELLO, ALAN J.;HARTFORD, DOUGLAS W.;MERTINOOKE, PETER E.;MUESSEL, DAN C.;HALBERSTADT, LOUIS |
分类号 |
B29C47/00;B29C44/20;B29C44/34;B29K105/04;C08J9/12;(IPC1-7):B29C44/20 |
主分类号 |
B29C47/00 |
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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