N-substituted carbamoyl-lactam
US4626385A · kind A · utility
5Cited by
3References
9Claims
0Family size
Inventors
Key dates
| Filing date | May 21, 1985 |
| Grant date | Dec 2, 1986 |
| Priority date | — |
| Expiry date | May 21, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2120/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An N-substituted carbamoyl-lactam compound of the formula ##STR1## wherein R is a di-valent radical derived from polytetramethylene glycol, R' is an at least divalent radical derived from a diisocyanate, Y is a C.sub.3 -C.sub.14 ring-forming alkylene group, and a has a value of at least 1 and is a number corresponding to the mean functionality of the aforesaid polyisocyanate minus 1. A process for preparing the N-substituted carbamoyl-lactam compound is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.