Cellulose powder
US7939101B2 · kind B2 · utility
34Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2001 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Mar 11, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Cellulose powder having an especially excellent balance among moldability, fluidity and disintegrating property is provided. Cellulose powder having an average polymerization degree of 150-450, an average L/D (the ratio of the major axis to the minor axis) value of particles of 75 μm or less of 2.0-4.5, an average particle size of 20-250 μm, an apparent specific volume of 4.0-7.0 cm3/g, an apparent tapping specific volume of 2.4-4.5 cm3/g, and an angle of repose of 55° or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.