Process of and apparatus for making a shingle, and shingle made thereby
US7785510B2 · kind B2 · utility
6Cited by
23References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2005 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Sep 6, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24355
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process and apparatus for making a shingle, together with the shingle made thereby, is provided, in which one or more thermoplastic materials are extruded or co-extruded to form an extrudate, with the extrudate being cut into a preliminary shingle shape, which is allowed to dissipate heat, and then is delivered to a compression mold, wherein the preliminary shingle shape is compression molded to substantially its final dimensions and is then discharged from the mold and allowed to cool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.