Pastes for the coating of substrates, methods for manufacturing them and their use

Paste and comprising:

• (a) as a first dispersed component 50-90 weight percent of chemical compound or alloy powders selected from the group consisting of niobium oxide, tantalum oxide, molybdenum oxide, tungsten oxide, zirconium oxide, indium-tin oxide, rare earth oxides, tantalates, niobates, titanium nitride, aluminum nitride, boron nitride, aluminum boride, rare earth borides and chalcogenides,
• (b) as a second component, 0.2 to 20 weight percent, referred to solids content, of an associative thickener in the form of a water emulsion with an active ingredient selected from the group consisting of tolulene diisocyanates (TDI) diphenylmethane diisocyanates (MDI), isophorone diisocyanates (IPDI), and hexamethylene diisocyanates (HDI),
• (c) balance essentially water, and wherein
• (d) the paste is printable.

Silicide paste and comprising:

• (a) as a first dispersed component 50-90 weight percent of silicide powders selected from the group consisting of molybdenum silicide and tungsten silicide
• (b) as a second component, 0.2 to 20 weight percent, referred to solids content, of an associative thickener in the form of a water emulsion with an active ingredient selected from the group consisting of tolulene diisocyanates (TDI) diphenylmethane diisocyanates (MDI), isophorone diisocyanates (IPDI), and hexamethylene diisocyanates (HDI),
• (c) balance essentially water, and wherein
• (d) the paste is printable.

Metallization paste which is formed and processable without use of organic solvents and comprising:

• (a) as a first dispersed solid component 50-90 weight percent of powders selected from the group consisting of Nb, Ta, Mo, W, Cr, Re, Au, Ag, Pt, Pd, Fe, Ni, C, B, Co, Mo and Ti.
• (b) as a second component, 0.2 to 20 weight percent, referred to solids content, of a water soluble associative polyurethane
• (c) balance essentially water, and wherein
• (d) the paste is printable and also able to substantially liberate, upon heating, all thickener and organics content thereof.

Paste which is formed and processable without use of organic solvents and comprising:

• (a) as a first dispersed component 50-90 weight percent of chemical compound or alloy powders selected from the group consisting of niobium oxide, tantalum oxide, molybdenum oxide, tungsten oxide, zirconium oxide, indium-tin oxide, rare earth oxides, tantalates, niobates, titanium nitride, aluminum nitride, boron nitride, aluminum boride, rare earth borides and chalcogenides,
• (b) as a second component, 0.2 to 20 weight percent, referred to solids content, of a water soluble associative polyurethane,
• (c) balance essentially water, and wherein
• (d) the paste is printable and also able to substantially liberate, upon heating, all thickener and organics content thereof.

Silicide paste which is formed and processable without use of organic solvents and comprising:

• (a) as a first dispersed component 50-90 weight percent of silicide powders selected from the group consisting of molybdenum silicide and tungsten silicide
• (b) as a second component, 0.2 to 20 weight percent, referred to solids content, of a water soluble associative polyurethane,
• (c) balance essentially water, and wherein
• (d) the paste is printable and also able to substantially liberate, upon drying, all thickener and organics content thereof.