Stock material or miscellaneous articles – All metal or with adjacent metals – Having metal particles
Patent
1992-11-30
1994-08-16
Walsh, Donald P.
Stock material or miscellaneous articles
All metal or with adjacent metals
Having metal particles
419 30, 419 33, 419 35, 241 3, 342 1, B22F 300, B22F 500, H01Q 1700
Patent
active
053386175
ABSTRACT:
A method for insulating metal powder particles comprises steps of placing the metal powder particles in a mixing container and adding a monomer in solution to the metal powder particles to form a mixture. The mixture is then stirred to provide an even consistency and is baked to remove solvents. The mixture is then stirred and the monomer is polymerized by exposing the monomer coated carbonyl iron particles to moist gas. The mixture is then ground to form a powder. The powder is suitable for incorporation into plastic resins for subsequent casting to form radio frequency shields having high DC resistance.
REFERENCES:
patent: 4011360 (1977-03-01), Walsh
patent: 4367306 (1983-01-01), Maeda et al.
patent: 4474685 (1984-10-01), Annis
patent: 4596670 (1986-06-01), Liu
patent: 5061566 (1991-09-01), Morgan
patent: 5103103 (1992-04-01), Radford et al.
L. G. Wade, Organic Chemistry, 1987, pp. 1284-1303.
Fraser Robert D.
Workinger David M.
Chi Anthony R.
Fliegel Frederick M.
Motorola Inc.
Walsh Donald P.
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