Biodegradable amphipathic copolymers
US4745160A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1985 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Jun 21, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/915
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A pharmaceutically or veterinarily acceptable amphipathic, non-cross linked linear, branched or graft block copolymer, which has a minimum weight average molecular-weight of 1000, in which the hydrophobic component is biodegradable or hydrolytically unstable under normal physiological conditions, and the hydrophilic component may or may not be biodegradable or hydrolytically unstable under such conditions, and which copolymer is self-dispersible in water; together with mixtures of such a copolymer and a drug, which may be water-soluble of water-insoluble, which mixtures are self-dispersible in water; and processes for the manufacture of such copolymers and such mixtures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.