发明名称 |
PROCESS AND APPARATUS FOR THE SURFACE MODIFICATION OF FOAM PLASTICS WEBS |
摘要 |
A process for the continuous modification of the surface portion only of a foamed plastic web to impart high mechanical resistance with retention of air permeability and elasticity comprises preheating the web to a temperature below its melting point, passing the preheated web through the nip of a calendar and withdrawing the web from the calender under tension. The calendar comprises a pressure roller heated to a temperature above the melting point of the web and a backing roller which is not heated. |
申请公布号 |
GB2032834(A) |
申请公布日期 |
1980.05.14 |
申请号 |
GB19790025823 |
申请日期 |
1979.07.24 |
申请人 |
CELLOFOAM DEUTSCHLAND GMBH |
发明人 |
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分类号 |
B29C43/30;B29C44/56;B29C53/00;B29C59/04;B32B5/18 |
主分类号 |
B29C43/30 |
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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