发明名称 |
Vacuum treatment of asphalt coating |
摘要 |
In a method of reducing voids in an asphalt roofing product, an asphalt coating material having voids is contacted with a vacuum in an amount effective to reduce the voids in the coating material. A mat is coated with the coating material to make an asphalt roofing product. The vacuum contacting step occurs prior to the coating step. The vacuum contacting step causes the roofing product to have reduced voids visible on a top surface compared to the same roofing product made with a coating material not contacted with vacuum.
|
申请公布号 |
US6352744(B1) |
申请公布日期 |
2002.03.05 |
申请号 |
US20000583843 |
申请日期 |
2000.05.31 |
申请人 |
OWENS CORNING FIBERGLAS TECHNOLOGY, INC. |
发明人 |
TRUMBORE DAVID CHARLES;OLLETT DAVID B.;MACDONALD FRANK JOSEPH |
分类号 |
B05D3/04;D06N3/00;D06N5/00;E04D5/02;E04D5/10;(IPC1-7):B05D3/12 |
主分类号 |
B05D3/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|