Method of manufacturing a weatherable exterior siding
US4786350A · kind A · utility
26Cited by
14References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Apr 13, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2327/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A manufacturing process for providing an extruded polyvinyl chloride exterior siding with a weatherable layer of polyvinyl fluoride is disclosed. In a preferred embodiment, the process facilitates the production of dimensionally stable dark colored siding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.