Methods for manufacturing pre-fabricated insulated foam wall structures with high racking strength and related pre-fabricated wall structures
US10415244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2017 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Jun 14, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2607/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Methods of manufacturing wall structures having high racking strength are described in this specification. The methods include spray applying a foam-forming composition into a cavity of a wall structure, wherein the wall structure is disposed in a climate-controlled spray application station and allowing the foam-forming material to expand within at least a portion of the cavity to form a foam layer deposited in the cavity. In the methods, the foam layer is formed in-situ during the manufacturing method, and the density of the foam layer is selected and the relative humidity and dew point of the air in the climate-controlled spray application station throughout the spray applying is selected so that the wall structure has a racking strength of at least 500 pounds per linear foot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.