Thermal insulation properties of polyiso foams
US11549268B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2020 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Jan 30, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B1/80
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments may include an insulated structure. The insulated structure may include a plurality of structural support members coupled together to form a frame. The insulated structure may also include a plurality of first wall boards attached to an exterior side of the frame to form an exterior wall or surface of the structure. The insulated structure may further include a spray foam insulation positioned within at least one of the wall cavities of the structure. The spray foam insulation may have an insulative R-value greater than or equal to 6.0 per inch at 40° F. The spray foam formulation may be made from a formulation that includes a reaction product of a polyisocyanate compound and a polyol compound and a blowing agent. The blowing agent may include a mixture of n-pentane and isopentane, where the mixture is at least 75% isopentane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.