Resinous soft magnetic composition

Details Resinous soft magnetic composition Resinous soft magnetic composition

1994-02-22

1996-04-23

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524430, 524431, 524432, 524435, 525189, C08J 510, C08K 308, C08L 8104

Patent

active

055104126

ABSTRACT:
A resinous soft magnetic composition is constituted by (a) 80-95 wt. % of a powdery soft magnetic material, and (b) 5-20 wt. % of a resin component comprising (1) 70-99.5 wt. % of a polyarylene sulfide resin, and (2) 0.5-30 wt. % of an ultrahigh-molecular weight polyethylene having a weight-average molecular weight of from about 4.times.10.sup.5 to about 7.times.10.sup.6. Because of the inclusion of the ultrahigh-molecular weight polyethylene, the magnetic composition is provided with an improved melt-flowability suitable for injection molding while retaining a sufficient soldering heat-resistance as represented by a freeness of a molded product thereof from cracking after dipping in a solder bath at about 260.degree. C. for 10 sec.

REFERENCES:
patent: 4134874 (1979-01-01), Needham

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