A magnetic powder treated with a coating agent, wherein the surface of the magnetic powder is coated with an alternating copolymer comprising a polyoxyethylene allyl methyl diether and maleic anhydride. An aqueous coating material containing the magnetic powder and a magnetic recording medium prepared...http://www.google.fr/patents/US5053273?utm_source=gb-gplus-shareBrevet US5053273 - Magnetic powder coated with a copolymer of polyoxyethylene allyl methyl diether and maleic anhydride
Magnetic powder coated with a copolymer of polyoxyethylene allyl methyl ...
