Encapsulation of active ingredients and method of making
US9820481B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Jun 28, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of preparing a silicon-containing polymeric structure coated/encapsulated active ingredient is disclosed. The method has the steps of providing an insoluble active ingredient; dispersing the active ingredient in a liquid medium to form a suspension of the active ingredient; adding a silicon-containing polymeric structure precursor to the suspension; and reacting the precursor to form the silicon-containing polymeric structure. The silicon-containing polymeric structure is formed around the active ingredient, thereby forming a silicon-containing polymeric structure coated/encapsulated active ingredient. The silicon-containing polymeric structure coated/encapsulated active ingredient may be used in place of the active ingredient itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.