Porous cellulose aggregate and formed product composition comprising the same
US8597686B2 · kind B2 · utility
1Cited by
1References
13Claims
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Key dates
| Filing date | Jan 27, 2005 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Jun 28, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2301/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A porous cellulose aggregate which has a secondary aggregation structure formed by the aggregation of primary cellulose particles, has a pore volume within a particle of 0.265 cm3/g to 2.625 cm3/g, contains I type crystals, has an average particle diameter of more than 30 μm and 250 μm or less, has a specific surface area of 1.3 to 20 cm2/g, has an angle of repose of 25° or more and less than 44°, and has the property that it collapses in water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.