Method of altering the effective bulk density of solid material and the resulting product
US4405373A · kind A · utility
1Cited by
9References
5Claims
0Family size
Inventors
Key dates
| Filing date | Dec 21, 1979 |
| Grant date | Sep 20, 1983 |
| Priority date | — |
| Expiry date | Dec 21, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of adjustably tailoring the effective bulk density of a solid material in which a mixture comprising the solid material, a film-forming polymer and a volatile solvent are sprayed into a drying chamber such that the solvent evaporates and the polymer dries into hollow shells having the solid material captured within the shell walls. Shell density may be varied as a function of solid/polymer concentration, droplet size and drying temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.