Microencapsulation of Material

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Technology Description: The present invention comprises a method for microencapsulating a core material comprising the steps of a) mixing a core material with an encapsulating polymer, b) supplying a supercritical fluid capable of swelling the polymer to the mixture under a temperature and a pressure sufficient to maintain the fluid in a super critical state, c) allowing the supercritical fluid to penetrate and liquefy the polymer while maintaining temperature and pressure sufficient to maintain the fluid in a supercritical state, and d) rapidly releasing the pressure to solidify the polymer around the core material to form a microcapsule. This method requires neither that the polymer nor core materials to be soluble in the supercritical fluid and can be used to microencapsulate a variety of materials rapidly and efficiently for a variety of applications. Benefits: Rapidly and efficiently microencapsulate a variety of materials for a variety of applications. Application does not require the polymer or core materials to be soluble.