Production of sustained release composition from salt-form reactants
US4797234A · kind A · utility
12Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Jun 19, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2989
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Sustained-released delivery forms comprising the reaction product of a Lewis acid salt with a Lewis base salt at the phase interface of their respective aqueous and non-aqueous solution to form an anisotropic high molecular weight salt of the acid and base and a neutral salt of the inorganic cation and anion in what is termed a "double decomposition" or "salt exchange" reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.