Title of Invention

METHOD OF ENCAPSULATING AN ACTIVE SUBSTANCE

Abstract THE INVENTION PROVIDES A METHOD OF ENCAPSULATING AN ACTIVE SUBSTANCE IN AN INTERPOLYMER COMPLEX, TO MAKE AN ENCAPSULATED PRODUCT IN PARTICULATE FORM. THE METHOD COMPRISES FORMING A MIXTURE OF A SUPERCRITICAL FLUID, AN INTERPOLYMER COMPLEX AND AN ACTIVE SUBSTANCE AND THEN CAUSING OR ALLOWING THE INTERPOLYMER COMPLEX TO ENCAPSULATE THE ACTIVE SUBSTANCE. THE ENCAPLULATED PRODUCT IS THEN SEPARATED FROM THE SUPERCRITICAL FLUID AND , IF NECESSARY, THE PRODUCT IS SUBJECTED TO SIZE REDUCTION TO OBTAIN PARTICLES IN WHICH THE ACTIVE SUBSTANCE IS ENCAPSULATED BY THE INTERPOLYMER COMPLEX.
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Documents:


Patent Number 208556
Indian Patent Application Number 01622/KOL-NP/2003
PG Journal Number 31/2007
Publication Date 03-Aug-2007
Grant Date 02-Aug-2007
Date of Filing 16-Dec-2003
Name of Patentee C S I R
Applicant Address CORPORATE BUILDING, SCIENTIA, 0002 PRETORIA,S0UTH AFRICA.
Inventors:
# Inventor's Name Inventor's Address
1 MOOLMAN, FRANCIS, SEAN VLEILORIE NO. 9,22 WILKINSON STREET, KILNER PARK, 0186 PRETORIA, S.A.
2 ROLFES , HEIDI 408 SSTONEWALL LANE, FAERIE GLEN EXTENSION 8, 0043 PRETORIA, S.A.
3 VAN DER MERWE, THILO, LOTHAR 57 GERRIT MARITZ AVENUE, DALVIEW, 1541 BRAKPAN, S.A.
PCT International Classification Number A61K 9/50
PCT International Application Number PCT/IB02/01853
PCT International Filing date 2002-05-28
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 01/4451 2001-05-30 South Africa