Title:
LEACH-PROOF MICROCAPSULES, THE METHOD FOR PREPARATION AND USE OF LEACH-PROOF MICROCAPSULES
Document Type and Number:
WIPO Patent Application WO/2011/003805
Kind Code:
A3
Abstract:
The present invention is directed to a leach proof microcapsule containing hydrophobic active molecules, wherein the microcapsule shell breaks upon exposure to a positive pressure drop across the inner and outer sides of the shell, 0 <ΔP = Pin - Pout > 5 bar, wherein Pin and Pout are the pressures in, respectively, out of the microcapsule, wherein the microcapsule shell consists of a alkylated organosilica compound, either fully alkylated or having an alkylation degree comprised between 2 and 25 mol.%, preferably between 5 and 20 mol.%, more preferably between 8 and 15 mol.%. The microcapsules of the present invention are particularly suitable for use in compositions for active-catalyzed polymerization reactions to form sealants, foams, coatings or adhesives.
Inventors:
DE SCHRIJVER ASTER (BE)
PAGLIARO MARIO (IT)
CIRIMINNA ROSARIA (IT)
SCIORTINO MARZIA (IT)
PAGLIARO MARIO (IT)
CIRIMINNA ROSARIA (IT)
SCIORTINO MARZIA (IT)
Application Number:
PCT/EP2010/059383
Publication Date:
May 05, 2011
Filing Date:
July 01, 2010
Export Citation:
Assignee:
DE SCHRIJVER ASTER (BE)
PAGLIARO MARIO (IT)
CIRIMINNA ROSARIA (IT)
SCIORTINO MARZIA (IT)
PAGLIARO MARIO (IT)
CIRIMINNA ROSARIA (IT)
SCIORTINO MARZIA (IT)
International Classes:
B01J13/18; B65D83/14; C08G18/00
Domestic Patent References:
| WO2008002637A2 | 2008-01-03 | |||
| WO2003066209A1 | 2003-08-14 | |||
| WO2010077774A2 | 2010-07-08 |
Foreign References:
| GB2416524A | 2006-02-01 | |||
| EP0941761A2 | 1999-09-15 | |||
| US20040256748A1 | 2004-12-23 | |||
| US3839220A | 1974-10-01 |
Attorney, Agent or Firm:
BiiP CVBA (Diegem, BE)
Download PDF: