Rigid polyurethane foam based on toluene diamine-initiated polyols
US7691913B2 · kind B2 · utility
2Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2004 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Dec 14, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Rigid polyurethane foams are made using a polyol component that includes toluene diamine-initiated polyols containing specified levels of oxyethylene groups. Foams made from these polyols have low k-factors and excellent demold expansion values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.