Manufacturing apparatus and method for fine hollow particles
US5424336A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1992 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Dec 23, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J13/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In manufacturing hollow particles, gas is supplied from a gas cylinder to a first tank under pressure for solution in a raw material liquid in the first tank for the particles. The resulting raw material liquid is supplied to a second tank where the liquid is stirred with a dispersing medium under pressure, thereby forming a compressed emulsion in the second tank. As the compressed emulsion is discharged to the outside, it is released from the compressed state so that the gas dissolved in corpuscles of the raw material liquid in the emulsion will come out as bubbles. Thus since the corpuscles in the emulsion become hollow particles, an emulsion containing fine hollow particles of the raw material liquid as nuclei is obtained. Therefore it is possible to obtain a large quantity of fine hollow particles with ease.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.