公开(公告)号：US09845398B2

公开(公告)日：2017-12-19

申请号：US15296863

申请日：2016-10-18

Applicant: VIAVI SOLUTIONS INC.

Inventor： Vladimir P. Raksha ,  Paul T. Kohlmann ,  Cornelis Jan Delst ,  Paul G. Coombs

IPC: C09D7/12 ,  C09C1/00 ,  C09D17/00 ,  C09D11/037 ,  H01F1/03 ,  H01F1/01 ,  H01F1/28 ,  C09D5/32 ,  H01F1/26

CPC classification number: C09D7/62 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/42 ,  C01P2006/60 ,  C09C1/0015 ,  C09C2200/1054 ,  C09C2210/00 ,  C09D5/32 ,  C09D7/70 ,  C09D11/037 ,  C09D17/004 ,  H01F1/01 ,  H01F1/0306 ,  H01F1/26 ,  H01F1/28

Abstract: The present invention provides a magnetic multilayer pigment flake and a magnetic coating composition that are relatively safe for human health and the environment. The pigment flake includes one or more magnetic layers of a magnetic alloy and one or more dielectric layers of a dielectric material. The magnetic alloy is an iron-chromium alloy or an iron-chromium-aluminum alloy, having a substantially nickel-free composition. The coating composition includes a plurality of the pigment flakes disposed in a binder medium.