Process for drying and expanding microspheres
US4397799A · kind A · utility
47Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1981 |
| Grant date | Aug 9, 1983 |
| Priority date | — |
| Expiry date | Dec 18, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a process for drying and expanding microspheres whereby first a dispersion of the microspheres in an inert liquid is prepared. This dispersion is then atomized in a hot inert gas. The process of the invention is advantageously carried out in a spray dryer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.