Abstract: Coating compositions of silver flake suspended in predominantly aqueous vehicle is disclosed for laying down a coating of electrically conductive metal on resistive or dielectric substrates useful in the electronics industry. The coating compositions provide an ideal combination of high silver loading and low viscosity for spray painting desired thickness coatings at high speed in a single pass. The novel compositions include silver flake, water soluble polymer binder, water and a substantially completely water soluble, organic co-solvent. The coating compositions have good green strength after drying and may be used to apply an electrically conductive base to enable electroplating plastic or elastomer parts. Optional sintering adhesives can be added to allow high temperature, permanent bonding of the silver to a ceramic substrate. The coating compositions have excellent storage stability such that settled solids can be redispersed readily with brief and/or mild agitation.

Abstract: A non-oxidizing cooper thick film conductor comprising copper, said copper comprising metallic copper powder and copper oxide powder and applied to said copper are a manganese boron compound, an inorganic phosphate-containing acid and an organic vehicle, wherein the manganese boron compound ranges from 0.5 to 1.5 weight %, based on the total conductor weight and wherein the amount of phosphate is 50 to 300 ppm based on the weight of the metallic copper powder.

Abstract: A nitrogen fireable resistor composition comprising:a. a conductive phase containing (1) a perovskite of the form A'.sub.1-x A".sub.x B'.sub.1-y B".sub.y O.sub.3, wherein when A' is Sr; A" is one or more of Ba, La, Y, Ca and Na, and when A' is Ba, A" is one or more of Sr, La, Y, Ca and Na, B' is Ru and B" is one or more of Ti, Cd, Zr, V and Co, O<x<0.2; 0<y<0.2, (2) 5 to 30 weight % of a metallic copper powder, nickel metallic powder or cupric oxide, relative to the total conductive phase weight, andb. a glass phase selected from the group consisting of (a) 40 to 60 mole % SrO or BaO, 25 to 45 mole % B.sub.2 O.sub.3, 0 to 6 mole % ZnO, 0.25 to 2.0 mole % TiO.sub.2, 2 to 14 mole % SiO.sub.2 and (b) 40 to 60 mole % SrO or BaO, 25 to 45 mole % B.sub.2 O.sub.3, 5 to 20 mole % Al.sub.2 O.sub.3, 0.25 to 2.0 mole % TiO.sub.2.

Abstract: A dielectric composition comprising an admixture of finely divided solids comprising (a) a noncrystallizable glass of which the deformation temperature (T.sub.d) is 580.degree.-625.degree. C. and the softening point (T.sub.s) is 630.degree.-700.degree. C., and (T.sub.s -T.sub.d) is 50.degree.-75.degree. C., and (b) a refractory which is substantially insoluble in the glass at temperatures of 825.degree.-900.degree. C.

Abstract: A dielectric composition comprising an admixture of finely divided solids comprising (a) a noncrystallizable glass of which the deformation temperature (T.sub.d) is 580.degree.-625.degree. C. and the softening point (T.sub.s) is 630.degree.-700.degree. C., and (T.sub.s -T.sub.d) is 50.degree.-75.degree. C., and (b) a refractory which is substantially insoluble in the glass at temperatures of 825.degree.-900.degree. C.