The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 05, 2010
Filed:
May. 28, 2002
Francis Sean Moolman, Pretoria, ZA;
Heidi Rolfes, Pretoria, ZA;
Thilo Lothar Van Der Merwe, Brakpan, ZA;
Francis Sean Moolman, Pretoria, ZA;
Heidi Rolfes, Pretoria, ZA;
Thilo Lothar Van Der Merwe, Brakpan, ZA;
CSIR, Pretoria, ZA;
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 encapsulated product is then separated from the supercritical fluid and, if necessary, the product is subjected to size reduction to ontain particles in which the active substance is encapsulated by the interpolymer complex.