Invention Grant
- Patent Title: Fullerene-based material and process for producing fullerene-based material
- Patent Title (中): 富勒烯材料和富勒烯类材料的制造方法
-
Application No.: US12297728Application Date: 2007-04-20
-
Publication No.: US08367033B2Publication Date: 2013-02-05
- Inventor: Hiroshi Okada , Yoshinori Sibata , Kuniyoshi Yokoo , Yuzo Mizobuchi , Kenji Omote , Yasuhiko Kasama
- Applicant: Hiroshi Okada , Yoshinori Sibata , Kuniyoshi Yokoo , Yuzo Mizobuchi , Kenji Omote , Yasuhiko Kasama
- Applicant Address: JP Fukuoka
- Assignee: Hiroyuki Kaneko
- Current Assignee: Hiroyuki Kaneko
- Current Assignee Address: JP Fukuoka
- Agency: Young & Thompson
- Priority: JP2006-116820 20060420
- International Application: PCT/JP2007/058644 WO 20070420
- International Announcement: WO2007/123208 WO 20071101
- Main IPC: C01B31/02
- IPC: C01B31/02

Abstract:
In order to isolate and purify an endohedral fullerene, a solvent washing was performed using toluene to concentrate the endohedral fullerene in a residual, but endohedral fullerene could not be efficiently purified because impurities other than the endohedral fullerene could not be sufficiently removed. Thus, the endohedral fullerene is isolated and purified by using a solvent such as chloronaphthalene or tetralin having a high solubility for the endohedral fullerene and concentrating the endohedral fullerene in the solvent. The endohedral fullerene isolated and purified by solvent extraction has a cluster structure where the endohedral fullerene is surrounded with empty fullerenes. Thus, this endohedral fullerene is highly stable and is a useful material applicable to various fields such as medical care and electronics.
Public/Granted literature
- US20090105386A1 FULLERENE-BASED MATERIAL AND PROCESS FOR PRODUCING FULLERENE-BASED MATERIAL Public/Granted day:2009-04-23
Information query