发明名称 |
Semipermeable membrane with intercommunicating pores for pressing apparatus |
摘要 |
A unitary membrane for use in a pressing apparatus includes a pair of longitudinal edge portions and a semipermeable portion having a plurality of intercommunicating pores. The semipermeable portion is positioned between the pair of longitudinal edge portions. Wherein the unitary membrane includes a formed fabric and has a thickness less than about 0.1 inches. The semipermeable portion has a permeability greater than zero and less than about five CFM per square foot as measured by TAPPI test method TIP 0404-20. A method of making the unitary membrane includes the steps of providing a carrier fabric which is very permeable and forming a plurality of intercommunicating pores in the carrier fabric.
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申请公布号 |
US2004089168(A1) |
申请公布日期 |
2004.05.13 |
申请号 |
US20030701096 |
申请日期 |
2003.11.04 |
申请人 |
VOITH SULZER PAPIERTECHNIK PATENT GMBH. |
发明人 |
BECK DAVID A. |
分类号 |
D21F3/02;D21F3/04;(IPC1-7):B30B3/04 |
主分类号 |
D21F3/02 |
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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