Conductor composition and devices using it

Claim 2

A conductor ink for forming thick film conductors on a soda lime substrate fireable at temperatures below 590° C. and comprising nickel powder, a lead-free glass frit binder and a vehicle, said nickel powder having a spherical structure and the glass frit in said binder having a composition comprising about 20% by weight of SiO 2 , about 20% by weight of B 2 O 3 , about 3% by weight of CaO, about 40% by weight of ZnO, about 5% by weight of Al 2 O 3 , about 7% by weight of Na 2 O, about 4% by weight of K 2 O, and about 1% by weight of Li 2 O, the nickel powder being present in about 76 weight percent and the glass frit binder being present in about 12 weight percent, with the remainder being the vehicle.

Claim 3

The conductor ink defined in claim 1 wherein said vehicle comprises ethyl cellulose, texanol, alpha terpineol, and 2-(2 methoxy-ethoxy) ethanol.

Claim 4

A gas plasma display panel including an envelope made up of a base plate of soda lime glass and a face plate and containing an ionizable gas, a plurality of thick film cathode electrodes in said envelope, said cathode electrodes being formed on said base plate from an ink composition including nickel and a lead-free glass frit binder, and at least one anode electrode in operative relation with said cathode electrodes, in said ink composition: said nickel powder having a spherical structure and about minus 500 mesh particle size, the glass frit in said binder having a composition comprising about 20% by weight of SiO 2 , about 20% by weight of B 2 O 3 , about 3% by weight of CaO, about 40% by weight of ZnO, about 5% by weight of Al 2 O 3 , about 7% by weight of Na 2 O, about 4% by weight of K 2 O, and about 1% by weight of Li 2 O, the nickel powder being present in about 76% by weight and the glass frit binder being present in about 12% by weight, with the remainder being a vehicle.

Claim 5

A gas plasma display panel including an envelope made up of a base plate of soda lime glass and a face plate and containing an ionizable gas, a plurality of thick film cathode electrodes in said envelope, said cathode electrodes being formed on said base plate from an ink composition including nickel and a lead-free glass frit binder, and at least one anode electrode in operative relation with said cathode electrodes, in said ink composition: said nickel powder having a spherical structure and about minus 500 mesh particle size, the glass frit in said binder having a composition comprising about 20% by weight of SiO 2 , about 20% by weight of B 2 O 3 , about 3% by weight of CaO, about 40% by weight of ZnO, about 5% by weight of Al 2 O 3 , about 7% by weight of Na 2 O, about 4% by weight of K 2 O, and about 1% by weight of Li 2 O, the nickel powder being present in about 76% by weight and the glass frit binder being present in about 12% by weight, with the remainder being a vehicle.

Claim 6

The panel defined in claim 3 wherein in the ink formulation said vehicle comprises ethyl cellulose, texanol, alpha terpineol and 2-(2-methoxyethoxy) ethanol.