Shaped polymeric articles
US6161354A · kind A · utility
67Cited by
22References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1998 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Dec 3, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24438
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Siding panels and intermediate articles of their manufacture are provided. The siding panels include a central portion including an aesthetic pattern and a pair of lateral edge portions which are formed while the polymeric material is still above its heat deflection temperature, and preferably, when the central portion has been hot-formed and cooled. This invention improves the art for vacuum-forming siding panels, dentil molding and other building products made by continuous vacuum forming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.