Polymerizable heterocyclic disulfide-based compounds and membranes made therefrom
US4808480A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1986 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Nov 25, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2984
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compounds adapted to making polymerizable, cross linkable vesicles and methods for making these compounds comprising combining a phophatidylcholine derivative with an acid anhydride of a heterocyclic carbon/disulfide to form reaction products which when dispersed in aqueous buffer form vesicles that are readily polymerized by the addition of a reducing agent. The reduced vesicles form polymerized, highly cross-linked, vesicles which have a much greater stability and longer shelf life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.