Method and composition for filling elongated channels with expanding foam insulation
US9593222B2 · kind B2 · utility
5Cited by
14References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2013 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Feb 16, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B3/267
- 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 fill hollow cavities (particularly window lineals) and which have lowered exotherms, which prevent deformation of the hollow cavity (e.g., window lineal) and additional achieve filling of longer lengths of window lineals by increasing the foaming and gel times of the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.