Poly(N-acylethyleneimine) grafted polysiloxane and its preparation
US4916195A · kind A · utility
2Cited by
3References
3Claims
0Family size
Inventors
Key dates
| Filing date | May 9, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | May 9, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention concerns a novel process for the preparation of poly(N-acylethyleneimine) grafted polysiloxanes comprising sulfo-esterifying all or part of alcoholic hydroxyl groups of a hydroxy containing polysiloxane and conducting, in said sulfo-esterification reaction mixture, ring-opening polymerization of a 2-oxazoline compound. The present process can afford the desired poly(N-acylethyleneimine) grafted polysiloxane in a higher reaction yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.