Method for rapid insulation of expanses
US7717357B2 · kind B2 · utility
29Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2006 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Dec 1, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F25/431972
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for cost-effectively and rapidly insulating a desired surface with spray foam insulation is described which includes the application of a polyurethane foam dispensed through heated conduits into a dispensing gun having a nozzle with essentially planar divergent lips having a triangular prism opening, the lips of the nozzle diverging at an angle of between about 5 and 35° inclusive, more preferably between 8 to 15° inclusive, most preferably 10 to 12° inclusive, thereby achieving application rates which are in excess of 70 Ft2/min, and optimally in excess of 100 Ft2/min.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.