Furan polyols
US4973715A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1988 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Aug 22, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2115/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to novel furan polyols, which are characterized in that they are the product of reaction of a strain selected from the group or consisting of a polyalcohol, a monoamine or polyamine, said polyalcohol or said amine possibly containing a furan cycle and mixtures thereof with a chain extension agent constituted by an organic epoxide, with the proviso that this organic epoxide is a furannic oxiran when this polyalcohol does not contain a furan cycle with the exclusion of 2,5(bis-hydroxy)furan as sole strain, when the chain extension agent does not contain any furan cycle. These furan polyols are used for the preparation of polyurethane foams having improved properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.