EP 0981577 A1 20000301 - HIGH STRENGTH FLEXIBLE MAGNETIC PAD
Title (en)
HIGH STRENGTH FLEXIBLE MAGNETIC PAD
Title (de)
FLEXIBLES MAGNETISCHES KISSEN VON HOHER FESTIGKEIT
Title (fr)
COUSSINET MAGNETIQUE FLEXIBLE A HAUTE RESISTANCE
Publication
Application
Priority
US 9707524 W 19970502
Abstract (en)
[origin: WO9850460A1] Flexible magnetic pads (10) having a magnetic core (12) dispersed in a flexible polymeric outer layer (22) having oppositely facing, single pole surfaces (18, 20) with increased magnetic strength and penetration depth are disclosed that comprise a magnetic core (12) having from about 40 to about 60 weight percent of a first ferromagnetic material (14) such as Nd-Fe-B having a predetermined average particle size ranging from about 25 to about 325 microns, and at least one other ferromagnetic filler material (24) having a smaller predetermined average particle size such that the smaller particles fill a substantial number of the interstices between the particles of the first ferromagnetic material. A preferred ferromagnetic filler material is from about 5 to 15 weight percent strontium ferrite having an average particle size of about 50 microns.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Citation (search report)
See references of WO 9850460A1
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 9850460 A1 19981112; AU 2826497 A 19981127; EP 0981577 A1 20000301
DOCDB simple family (application)
US 9707524 W 19970502; AU 2826497 A 19970502; EP 97922647 A 19970502