Patent · US Active

Process for preparing silicate shell microcapsules

US9005639B2 · kind B2 · utility

3Cited by

9References

17Claims

0Family size

Assignee

Dow Corning Corporation · US

Inventors

Thomas Daniel Bekemeier · Birch Run, US
Lorry Deklippel · Virton, BE
Tatiana Dimitrova · Braine-l'Alleud, BE
Russell Allen Elms · Midland, US
Fabrizio Galeone · Buvrinnes, BE
Bertrand Louis Julien Lenoble · Hellebecq, BE
Leon Marteaux · Auderghem - Oudergem, BE
Josef Roidl · Saulheim, DE
Martin Severance · Midland, US
Stephane Ugazio · Soignies, BE
Brett Lee Zimmerman · Midland, US

Key dates

Filing date	Oct 15, 2009
Grant date	Apr 14, 2015
Priority date	—
Expiry date	Feb 20, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D2111/12
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A process for preparing silicate shell microcapsules comprises adding a water reactive silicon compound to an oil in water emulsion, thereby condensing and polymerizing the water reactive silicon compound to form silicate shell microcapsules having a core comprising the oil phase of the said emulsion. The water reactive silicon compound comprises a tetraalkoxysilane and an alkoxysilane having an amino or quaternary ammonium substituted alkyl group.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.