Method for producing small, spherical polymer particles
US4822535A · kind A · utility
93Cited by
11References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 26, 1986 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Jun 26, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J3/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of producing small spherical polymer particles from systems containing two liquid phases, the one phase of which contains one or more dissolved substances and is dispersed in the form of small droplets in the other phase to form an emulsion, whereafter the droplets are converted to a solid form. The liquid phases used are two mutually immiscible aqueous phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.