Method for filling concrete block cavities with expanding foam insulation
US9062168B2 · kind B2 · utility
2Cited by
3References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 8, 2012 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Aug 1, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2002/0293
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention described herein generally pertains to the use of low boiling point, low vapor pressure blowing agents with froth polyurethane or polyisocyanurate foams to achieve superior cavity filling than when using conventional higher vapor pressure or more ozone-depleting blowing agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.