Tertiary amine-containing polyols prepared in a Mannich condensation reaction using a mixture of alkanolamines
US5120815A · kind A · utility
27Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1989 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Jun 29, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G14/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved process for preparing Mannich polyols is disclosed. The process involves capping a Mannich condensate of a phenolic compound or an amino-substituted s-triazine with a small quantity of an alkylene oxide in the absence of an alkylene oxide polymerization catalyst, prior to heating the condensate to elevated temperatures at which polycondensates are formed. The capped Mannich condensate is then alkoxylated to form the desired polyol.
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