Method for filling wall cavities with expanding foam insulation
US8680168B2 · kind B2 · utility
8Cited by
5References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2011 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Nov 17, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention is the use of low boiling point, low vapor pressure blowing agents with froth polyurethane or polyisocyanurate foams to fill cavity voids when compared to higher vapor pressure or more ozone-depleting blowing agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.