Organic ferromagnetic substance

Details Organic ferromagnetic substance Organic ferromagnetic substance

1990-08-23

1992-08-04

Willis, Jr., Prince

Compositions

Magnetic

With wax, bitumen, resin, or gum

252500, 528481, C08F 850

Patent

active

051356732

ABSTRACT:
An organic ferromagnetic substance and a process for producing same are disclosed, which substance is a product of the carbonization of at least one polymer in mid course of graphitization selected from (a) an aromatic polymer having a structure such that the aromatic compounds are connected via alkylene chains which may be substituted by an alkyl or aryl group, (b) a polymer of a triarymethane, (c) a polymer of an acetylene compound and (d) a polymer of an .alpha., .beta.-unsaturated compound, characterized in that the ferromagnetic substance contains 1-10 hydrogen atoms per 100 carbon atoms. This organic ferromagnetic substance can be produced in a high yield from commercially available polymers in a simple manner and possesses excellent stability to heat, chemicals and weathering action. Accordingly, this substance can be used in various industrial fields.

REFERENCES:
patent: 4626588 (1986-12-01), Murase
patent: 4954607 (1990-09-01), Otani
patent: 5015699 (1991-05-01), Cotts

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