Particulate blends and compacted products formed therefrom, and the preparation thereof
US6680070B1 · kind B1 · utility
14Cited by
73References
72Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2000 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Jan 18, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P29/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The dry blends comprise a powdery or finely-divided active ingredient such as a pharmaceutical, dietary supplement, agricultural chemical, water-treating agent or biocidal agent, and a micronized synthetic polyolefin-based hydrocarbon wax and/or a micronized synthetic polyfluorocarbon wax that is compatible with the active ingredient. Shape-retentive compacted compositions are formed by pressure compacting such blends. Preferred active ingredients are 1,3-dihalo-5,5-dialkylhydantoins and profen pharmaceuticals such as naproxen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.