Patent number: 10723160
Abstract: A universal or all-purpose laser marking composition for forming satisfactorily dark laser marks on a wide variety of substrates is provided. The marking composition comprises an enhancer of nitrides, carbides, silicides, and combinations thereof. The enhancer may be selected one or more of ferromanganese, ferrosilicon, FexSi(1-x) where X can range from about 0.005 to 0.995, Fe5Si2, MgFeSi, SiC, CaSi, (Co)Mo, MoSi2, TiSi2, ZrSi2, WSi2, MnSi2, YSi, Cu5Si, Ni2Si, Fe3C, Fe7C3 and Fe2C, MoC, Mo2C, Mo3C2, YC2, WC, Al4C3, Mg2C, Mg2C3, CaC2, LaC2, Ta4C3, Fe2N, Fe3N, Fe4N, Fe7N3, Fe16N2, MoN, Mo2N, W2N, WN, WN2, and combinations thereof and combinations thereof.
Type:
Grant
Filed:
January 23, 2018
Date of Patent:
July 28, 2020
Assignee:
Ferro Corporation
Inventors:
Joseph E. Sarver, Nicholas M. Karpa, Dennis R. Gilmore, George E. Sakoske
Publication number: 20190225000
Abstract: A universal or all-purpose laser marking composition for forming satisfactorily dark laser marks on a wide variety of substrates is provided. The marking composition comprises an enhancer of nitrides, carbides, silicides, and combinations thereof. The enhancer may be selected one or more of ferromanganese, ferrosilicon, FexSi(1-x) where X can range from about 0.005 to 0.995, Fe5Si2, MgFeSi, SiC, CaSi, (Co)Mo, MoSi2, TiSi2, ZrSi2, WSi2, MnSi2, YSi, Cu5Si, Ni2Si, Fe3C, Fe7C3 and Fe2C, MoC, Mo2C, Mo3C2, YC2, WC, Al4C3, Mg2C, Mg2C3, CaC2, LaC2, Ta4C3, Fe2N, Fe3N, Fe4N, Fe7N3, Fe16N2, MoN, Mo2N, W2N, WN, WN2, and combinations thereof and combinations thereof.
Type:
Application
Filed:
January 23, 2018
Publication date:
July 25, 2019
Inventors:
Joseph E. Sarver, Nicholas M. Karpa, Dennis R. Gilmore, George E. Sakoske