Novel metal powders and magnetic tapes produced therewith

Details Novel metal powders and magnetic tapes produced therewith Novel metal powders and magnetic tapes produced therewith

1975-09-12

1977-12-06

Robinson, Ellis

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

75 5R, 75 5A, 75 5AA, 148105, 252 6255, 428425, 428480, 428900, C22B 2304, B32B 516, B32B 1502

Patent

active

040618242

ABSTRACT:
Improved processes and products based on the discovery that metal atoms in complex relationship with complexing agents can be used to moderate the formation of organic salt seed crystals which promote an exceptionally well-ordered acicular growth of organometallic salts such as oxalates of the metal. Some acicular, i.e. needle-like, products have particular utility for being reduced to ferromagnetic metal particles which retain a surprisingly large degree of acicularity and possess extraordinarily favorable properties for use in magnetic recording applications.

REFERENCES:
patent: 2999271 (1961-09-01), Falk
patent: 3228882 (1963-01-01), Horle
patent: 3574685 (1971-04-01), Haines
patent: 3607218 (1971-09-01), Akashi
patent: 3649541 (1972-03-01), Ingersoll
patent: 3661556 (1972-05-01), Jolley
patent: 3740266 (1973-06-01), Akashi
patent: 3775098 (1973-11-01), Kunda
patent: 3803191 (1974-04-01), Ehrreich
patent: 3837912 (1974-09-01), Roden
patent: 3843349 (1974-10-01), Ehrreich
patent: 3892673 (1975-07-01), Ehrreich
patent: 3965046 (1976-06-01), Deffeyes
patent: 4004917 (1977-01-01), Deffeyes

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