Polyurethane polymers comprising macrocyclic crown ethers in the polymer backbone
US4438251A · kind A · utility
15Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1983 |
| Grant date | Mar 20, 1984 |
| Priority date | — |
| Expiry date | May 16, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/3218
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to polyurethane polymers comprising macrocyclic polyether moieties in the polymer backbone. The polymers may be formed into films which are useful for a variety of purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.