发明名称 |
Waterproof self supporting sheet of plasticised polyvinyl butyral - with coal tar pitch or aromatic asphalt extract |
摘要 |
<p>Waterproofing self supporting sheet material of thickness 20-90 mils comprises 20-80 wt.% plasticised polyvinyl butyral resin (I) and 20-80 wt.% coal tar pitch or 20-85 wt.% (I) and 15-80 wt.% of a highly aromatic extract of asphalt. The pitch has a softening point (ASTM D-36) of 100-200 degrees F. As a waterproof membrane (flashing) in roofing, a pond lined or a gasket material having good U.V. resistance, cohesion, elongation, tensile strength and flexibility and low water absorption.</p> |
申请公布号 |
DE3019790(A1) |
申请公布日期 |
1981.12.03 |
申请号 |
DE19803019790 |
申请日期 |
1980.05.23 |
申请人 |
TREMCO INC. |
发明人 |
ARTHUR KUMINS,CHARLES;LAVERN WARFORD,MILAN |
分类号 |
D06N5/00;E04B1/66;E04D5/10;(IPC1-7):04B1/66;04D5/10 |
主分类号 |
D06N5/00 |
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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