Process for producing riboflavin-containing granules
US6093715A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1999 |
| Grant date | Jul 25, 2000 |
| Priority date | — |
| Expiry date | Mar 24, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1635
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Process for producing riboflavin granules or riboflavin microgranules with a riboflavin content of from 90 to 99.5% by weight and with a particle size range from 50 to 450 .mu.m, which entails adding during the granulation at least one auxiliary selected from the group consisting of alkali metal and alkaline earth metal halides, alkali metal and alkaline earth metal carbonates, alkali metal and alkaline earth metal bicarbonates, alkali metal and alkaline earth metal phosphates, crosslinked cellulose and cellulose derivatives and crosslinked polyvinylpyrrolidone in amounts of from 0.5 to 10% by weight, all % by weight data being based in each case on the dry product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.