Wax capsules containing hydrophilic cores

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20090004337A1
SERIAL NO

12155067

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Abstract

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Provided is a method for cooling wax after coextrusion to create wax capsules. The method includes immersing a concentric nozzle of a coextruder in a container of heated alcohol. The container of heated alcohol sits in a water-ice bath to create a temperature gradient. A core material having a wax coating is extruded through a concentric nozzle to form a capsule. The capsule enters the container of hot alcohol where the wax coating is solidified. In an embodiment, the method is a continuous method including a capsule and solvent transfer system.

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Patent Owner(s)

Patent OwnerAddress
PHILIP MORRIS USA INC6601 WEST BROAD STREET RICHMOND VA 23230

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Karles, Georgios D Richmond, US 71 982
Liu, Hongwei Appleton, US 64 471
Zhuang, Shuzhong Richmond , US 64 609

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