Asphalt coated mat
US6207593A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1998 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Mar 5, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Method and apparatus for production of asphalt coated sheets comprising materials highly prone to distortion under heat, including polyester and similarly deformable materials, in a coating machine comprising a mat puller adapted to pull the mat at a selectable rate, a coater, and a metering device. The metering device is optionally adapted to pull the mat at a selectable rate. The mat is pulled through the coater and coated with asphalt heated to 250.degree. F. to 500.degree. F., while the rates at which the mat puller and metering device pull the mat are independently and/or jointly adjusted to such that coated sheet may be produced at rates of more than 200 feet per minute, without wrinkling or necking in the mat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.