Global patent index - EP 0981577 A1

EP 0981577 A1 2000-03-01 - 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

EP 0981577 A1 (EN)

Application

EP 97922647 A

Priority

US 9707524 W

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 (main, further and additional classification)

C08K 3/10

IPC 8 full level (invention and additional information)

C08K 3/08 (2006.01); C08K 3/10 (2006.01)

CPC (invention and additional information)

C08K 3/08 (2013.01); C08K 3/10 (2013.01)

Citation (search report)

See references of WO 9850460A1

Designated contracting state (EPC)

DE FR GB NL

EPO simple patent family

WO 9850460 A1 19981112; AU 2826497 A 19981127; EP 0981577 A1 20000301

INPADOC legal status

2004-08-18 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20031201

2000-03-01 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991108

2000-03-01 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB NL