Liposome composition whose liposome membrane contains a polyoxyethylene derivative
US5252336A · kind A · utility
6Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Jun 5, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2984
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A liposome composition is obtained by using as constituent components of the liposome membrane a polyoxyethylene derivative represented by the general formula: EQU X--O--(CH.sub.2 CH.sub.2 O).sub.n --Y (I) wherein X represents an alkanoyl group or an alkyl group, Y represents a residue of a compound having a negative charge, and n is an integer of 2 to 50, and a phospholipid. The liposome composition has good dispersibility, high drug-encapsulation property and high stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.