Polyurethanes using bis(aminoethyl)ether derivatives as catalysts
US4338408A · kind A · utility
38Cited by
8References
11Claims
0Family size
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Key dates
| Filing date | Jul 20, 1981 |
| Grant date | Jul 6, 1982 |
| Priority date | — |
| Expiry date | Jul 20, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/1825
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The alkylene oxide adduct of bis(aminoethyl)ether may be reacted with formaldehyde in the presence of hydrogen and a hydrogenation-dehydration catalyst to produce new compounds of the formula ##STR1## where R is hydrogen or lower alkyl and R" is methyl or ##STR2## These compounds show unexpectedly high efficiency as polyurethane catalysts. Fewer equivalents of this amine are required to produce foams having the same reaction profile as foams made with prior art amine catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.