Dry polymers
US4798888A · kind A · utility
19Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1985 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Apr 4, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2305/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Powdered polysaccharide may be made by spray drying an emulsion in a non-aqueous liquid of an aqueous solution of the polysaccharide. Spray dried polysaccharides are novel materials. At least 90% by weight of the particles may be within a size range of not more than 100 microns. The particles may have an average size between 50 and 250 microns or between 10 and 50 microns, and the finer particles can be redispersed into oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.