发明名称 |
Process of making roofing material |
摘要 |
A laminated roofing material includes an aluminum foil top sheet laminated to a polyethylene film by an ionomer resin. After the sheets are bonded together they are cooled to set the resin and a bitumen coating is applied to the exposed polyethylene sheet and covered with a release paper.
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申请公布号 |
US4936938(A) |
申请公布日期 |
1990.06.26 |
申请号 |
US19880225053 |
申请日期 |
1988.07.27 |
申请人 |
MINERAL FIBER MANUFACTURING CORPORATION |
发明人 |
SIMPSON, ROBERT S.;SIMPSON, ROBERT E. |
分类号 |
B32B15/08;B32B37/12;B32B37/20;E04D5/10;E04D12/00 |
主分类号 |
B32B15/08 |
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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