Method for the preparation of polyamino acids
US5780579A · kind A · utility
16Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1996 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Mar 28, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L27/227
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a method for the preparation of polyamino acids, with controlled molecular weights, by polymerization of N-carboxyanhydrides (NCAs) of at least one amino acid, using at least one initiator of the strong base type and in liquid medium, characterized in that it consists in including, in the liquid reaction medium, given amounts of water and/or of alcohol. Application: synthesis of polyamino acids with mechanical and rheological characteristics adapted to applications as biomaterials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.