Polyurethanes from oligomeric formal diols of THF copolymer glycols
US4383100A · kind A · utility
10Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1982 |
| Grant date | May 10, 1983 |
| Priority date | — |
| Expiry date | Jan 19, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G4/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Oligomeric formal diols are prepared by coupling segments of copolyether glycols with formaldehyde. The formal diols are useful in preparing polyurethanes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.