Organic ferromagnetic substance and process for producing same
AssigneeDirector-General of Agency of Industrial Science and Technology
InventorsKazuhisa Murata, Akio Matsuda, Takashi Masuda
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Abstract
An organic ferromagnetic substance including an amorphous carbonaceous substance in mid course of graphitization prepared from an organic compound having a hydrogen/carbon ratio of 1.7 or more and a process for producing same are disclosed. This organic ferromagnetic substance is stable and easy to produce, and has a high saturation magnetization and is advantageous as an industrial product such as a toner for copiers utilizing its light weight and high saturation magnetization.
Claims3
An organic ferromagnetic substance which comprises an amorphous carbonaceous substance in mid course of graphitization produced from an organic compound selected from the group consisting of:
- I. aza compounds selected from the group consisting of 1,4,8,11-tetrazaundecane, 1,5,8,12-tetrazadodecane, 1,5,9,13-tetrazatridecane, 1,4,8,11-tetrazacyclotetradecane and 1,4,8,12-tetrazacyclopentadecane;
- II. crown compounds represented by the following general formula (V) and (VI):
- ##STR6## wherein n.sub.10 -n.sub.12 each represent an integer of 1 to 8;
- and III. alkylamines,
- said organic compound having a hydrogen-to-carbon ratio of 1.7 or more and said carbonaceous substance having 1-50 hydrogen atoms per 100 carbon atoms.
Dependencies are inferred from the claim text.