发明名称 |
AERATION PIPE AND METHOD OF MAKING SAME |
摘要 |
<p>This invention relates to the manufacture of flexible porous plastic aeration pipe (31) having an essentially uniform porosity throughout its length. The plastic pipe of this invention has a gas permeable wall of thermoset polymer particles and thermoplastic binder for the particles with a substantially uniform plurality of micropores through the wall of about 0.001 inch to 0.004 inch along its length for diffusion of gas therethrough and transfer to a medium. The thermoset polymer particles have a mesh size of about 60 to about 140 mesh, preferably approximately 80 to 100 mesh.</p> |
申请公布号 |
WO9813306(A1) |
申请公布日期 |
1998.04.02 |
申请号 |
WO1997US01224 |
申请日期 |
1997.01.24 |
申请人 |
PLASTIC SPECIALTIES AND TECHNOLOGIES INVESTMENTS, |
发明人 |
MITCHELL, WILLIAM, S. |
分类号 |
B01F3/04;B29C47/92;B32B5/18;C02F3/20;F16L11/12;(IPC1-7):C02F3/20 |
主分类号 |
B01F3/04 |
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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