Pre-finished and durable building material
US7524555B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2004 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Feb 3, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31964
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A pre-finished, moisture resistant and durable building material is provided. In one embodiment the building material includes a fiber cement substrate having a first side and a second side, at least one resin impregnated paper over at least one of the first and second sides, and a stress-relieving polymeric film between the fiber cement substrate and the at least one resin impregnated paper, the polymer film acting as a stress relaxer between the fiber cement substrate and the at least one resin impregnated paper. In another embodiment, a stress-relieving polymeric coating or film is provided between resin penetrated sheets and a substrate. In another embodiment, a process for bonding the resin penetrated sheets to the substrate is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.