Ortho-cyclohexanediamine-initiated polyols and rigid polyurethane foam made therefrom
US8318826B2 · kind B2 · utility
2Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2008 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Oct 4, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyether polyols are initiated with orthocyclohexanediamines such as 1,2-diaminocyclohexane. The polyols are useful in making rigid polyurethane foams, especially foams for pour-in-place applications, where they give a good combination of low k-factor and short demold times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.