发明名称 |
VACUUM ASSISTED APPLICATION OF THIN VAPOR PERMEABLE, LIQUID IMPERMEABLE COATINGS ON APERTURED SUBSTRATES AND ARTICLES PRODUCED THEREFROM |
摘要 |
A process for the manufacture of a vapor permeable, liquid impermeable composite material comprising a three-dimensional apertured substrate having a vapor permeable, liquid impermeable coating material thereon, the substantially liquid impervious composite material, and an apparatus for making the composite material are disclosed. Successive portions of a continuous sheet of an apertured substrate are passed into contact with a continuous moving perforated member. The coating material is supplied onto the substrate. The coated substrate is subjected to a vacuum which causes the coating material to flow onto the substrate material and in certain embodiments, at least partially into the apertures in the substrate. The vacuum is maintained for a period of time sufficient for the coating material to adhere to the substrate. The coated portions of the substrate are continuously removed from the moving member. |
申请公布号 |
EP0789543(A1) |
申请公布日期 |
1997.08.20 |
申请号 |
EP19950939619 |
申请日期 |
1995.10.27 |
申请人 |
TREDEGAR INDUSTRIES, INC. |
发明人 |
RAY, CARL, D.;THOMAS, PAUL, E.;MCBRIDE, ROBERT, K.;CHANG, PETER, I. |
分类号 |
A61F13/514;A61F13/00;A61F13/15;B29C63/02;B32B3/24;B32B5/18;B32B27/32;(IPC1-7):A61F13/15;B32B3/30;B32B3/28;B32B3/10;B32B3/00;B05D1/00;A61F13/20 |
主分类号 |
A61F13/514 |
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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