Cellulose powder
US7514552B2 · kind B2 · utility
10Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2004 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Jun 8, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2301/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cellulose powder which has an average degree of polymerization of 150 to 450, an average particle diameter of 30 to 250 μm, an apparent specific volume exceeding 7 cm3/g, and a retention of polyethylene glycol having a molecular weight of 400 to 190% or higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.