Polyethylene glycol coating for electrostatic dry deposition of pharmaceuticals
US6372246B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1998 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Dec 16, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2086
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a substrate coating for the electrostatic deposition of dry powder medicaments for use in the manufacture of pharmaceutical dosage forms comprising micronized polyethylene glycol (PEG), with A molecular weight in the range of 1,000 to 20,000, and having a particle size of 1-100 &mgr;m. The invention also relates to pharmaceutical compositions having such a substrate coating, and processes for manufacturing such pharmaceutical compositions. The invention also relates to the technology of reversing negative charge of medicaments so that they can be electrostatically deposited on a negatively charged substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.