Title: Apparatus and method for purifying an organic electroluminescent material
Application Number: 02828095 Application Date: 2002.12.13
Publication Number: 1714061 Publication Date: 2005.12.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C07B63/00;B01D7/00;C07C46/10;C09K11/06
Applicant(s) Name: SKC Co. Ltd Address:
Inventor(s) Name: Byun Ki Nam;Jang Min Sik;Kim Hyung Mo;Park Sang Ho
Attorney & Agent: han hong
Abstract:
    The apparatus for purifying an organic electroluminescent material includes one or more inner tubes for mounting material to be purified in their one ends, connection members for separating each of the inner tubes into a plurality of sections, a heat unit for heating the sections of respective inner tubes to more than sublimation temperature of the material to be purified, and a vacuum pump for vacuum-evacuating the sections of the inner tubes. Each of the connection members has a partition for partially closing space between two sections and a hole for making sublimate gas from the material to be purified pass therethrough, the hole being formed at a substantially central portion of the partition.
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