Abstract: The present invention relates to a more easily recyclable enamel composition which includes at least one glass frit and includes, as pigment(s), at least one or more manganese compounds, this composition furthermore having a melting temperature below 750° C. The invention also relates to an enamelling process using this composition, as well as to the enamelled products obtained.

Abstract: There is provided a conductive paste comprising a conductive component, a glass frit, and a vehicle, wherein the glass frit comprises a glass and at least one of alumina (Al2O3), silica (SiO2), titania (TiO2) and zirconia (ZrO2). The conductive paste is capable of being baked at a low temperature with sufficient coloring, and is suitable for forming a circuit on a glass substrate, the glass circuit substrate suitable for application in a defogging glass for an automobile window formed therewith.

Abstract: An electrically conductive composition for forming an electrically conductive film through firing. The composition includes metal powder and glass frit as solid components. The glass frit contains a first glass frit which assumes a molten state at least at the maximum temperature during firing and a second glass frit which maintains a glass-ceramic state at the maximum temperature during firing. The first frit has a softening point 100° C. or more lower than the maximum temperature during firing. The content of the first glass frit based on the total amount of glass frit lies within the range of about 25-90 wt. %, and the total amount of glass frit based on the total solid component including metal powder lies within a range of about 3-10 wt. %. Also disclosed are ceramic electronic components and a production process of the components.

Abstract: The present invention provides a new and improved lead-free and cadmium-free glass enamel composition that displays good flow at traditional glass enamel firing temperatures and upon firing produces an enamel finish that displays no cracking, good chemical resistance, good weatherability, and improved color values. The glass enamel composition of the present invention includes a glass component, an oxidizer, a pigment system, and optional vehicles and fillers. The presence of the oxidizer in the composition, which can be included as part of the glass component, as a separately added material, or both, improves the color values of the fired enamel as compared to enamels formed using similar glass enamel compositions having no oxidizer present.

Abstract: An insulating package is provided with an insulating base having a bottom plate and frame body, electrodes led from the inside to the outside of the insulating base, and a metal cap to seal the frame body. The metal cap is adhered to the frame body by low melting point glass. This low melting point glass contains at least one selected from a group consisting of Al, Ni, Ag, BaTiO3, NiCr, TiB, and TiO2, and inside the glass, spherical particles with diameters of 10 &mgr;m or more are dispersed.

Abstract: A sealant for a solid oxide fuel cell comprises a glass material that acts as a matrix, with the glass material being present between about 40 to 90 wt. %. A gap-filler material is also in the sealant and selected from the group consisting of a metal material and a ceramic material, with the gap-filler material being present between about 10 to 60 wt. %. The sealant can seal a gap as large as about 3 mm.

Abstract: Provided is an electrically conductive paste adapted to be sintered at the same time when a ceramic body is being sintered, wherein said paste has a contraction starting temperature that is higher than the contraction ending temperature of said ceramic body during the sintering treatment. Also provided is an electrically conductive paste comprising an electrically conductive component and an organic vehicle component, wherein said electrically conductive component comprises an electrically conductive powder mainly comprising silver, the particles of said electrically conductive powder being coated with a metal oxide having a melting point higher than that of silver.

Abstract: A family of aluminoborate glasses that are compatible with aluminum at elevated temperatures, and an article comprising such a glass with either an aluminum coating, or with aluminum particles dispersed within the glass, whereby the glass may be rendered polarizing. The base glass consists essentially of, 15-85% B2O3, 5-45% Al2O3 and 10-75% Li2O+RO, where RO represents the alkaline earth metal oxides MgO, CaO, SrO and BaO, and is free of oxides reacting with aluminum at elevated temperatures.

Abstract: Provided is a conductive paste, including a metal powder, glass frit and SiO2 dispersed in an organic vehicle in which the compounding ratio of SiO2 is in the range of 0.3 to 1.5% by weight. The conductive paste can prevent scattering of a solder plating film formed on a thick film electrode during surface mounting of a ceramic electronic part including a thick film electrode (an external electrode) which is formed by coating the ceramic electronic part with the conductive paste and baking.

Abstract: A glass composition comprising, in mole percent of the total composition: glass-forming compounds in a total amount of 75 to 85%, wherein said glass forming compounds comprise 40 to 65% SiO2, 10 to 20% Bi2O3 and 0.1 to 3% Al2O3, and glass modifiers in a total amount of 15 to 25%, wherein said glass modifiers comprise 1 to 23 % ZnO, 0.1 to 5% CuO, 0.1 to 5 CaO and 0.1 to 2% MgO, thick film formulations containing said composition and uses thereof.

Abstract: A robot that stops an arm within a limitation position of a predetermined working area when the arm is going to exceed the predetermined working area. ACPU of controller calculates a position and a speed of an arm at a next sampling time when a present sampling time comes. The CPU calculates an operation a mount which is a distance to be moved till the arm stops when the arm would be decelerated with a predetermined deceleration, and a position of the arm when the arm would operate by the operation amount after the position at the next sampling time. When a stop position as a result of the deceleration exceeds a predetermined limitation position, the CPU stops the arm with the predetermined deceleration. In this way, the CPU obtains the operation speed of the arm each time, and change a position to start to deceleration based on the operation speed, the arm can be stopped around the limitation position of the working area without fail.

Abstract: A method of manufacturing a substrate coated with a transparent, colored coating stable to high temperature and UV includes coating the substrate with a coating composition including at least one element which is able to form a vitreous, crystalline, or partially crystalline oxide, in the form of a compound which on heat treatment yields the oxide and is present as a sol or solution in an at least predominantly aqueous medium, as the matrix-forming component, and at least one member selected from the group consisting of metal colloids, metal compound colloids, metal alloy colloids, and metal compounds which form metal colloids under reducing conditions, as the coloring component; and heat-curing the resulting coating. Particularly suitable substrates are glass substrates, such as (halogen) lamp bulbs and gas discharge tubes.

Abstract: A glass frit is prepared by heating an initial glass frit in the presence of a reducing agent so as to reduce metal moiety in the glass structure of the frit and then cooling the reaction mixture. Preferably, the frit prepared is used in a method of forming electrically conducting silver tracks on enamel on glass windows, by applying to window glass an enamel composition containing the frit and on top thereof a silver composition in the shape of the tracks and firing the compositions, such that on the firing the reduced metal moiety reduces silver ions migrating through the enamel composition from the silver composition to elemental silver and thereby prevents or impairs them from interacting with the glass to form visible tracks.

Abstract: Metal-ceramic composite coatings provide refractory anti-corrosion flexible enamel coated products. Frit is made of silicon dioxide, sodium or potassium oxide, boron oxide, calcium oxide and zinc oxide, with possible other components. The frit is wet milled with clay and bentonite as a suspending agent, magnesium carbonate and sodium nitrates as electrolyte, boric acid a buffer, and water. Finely divided aluminum is blended after milling. A substrate is coated with the frit aluminum and clay mixture, which is heated and fused. The metal component coats the substrate and provides galvanic protection. The resulting coating is flexible and deforms with the substrate without delaminating or chipping. The coating is prepared by crushing, sieving, mixing and melting the frit components. The melt is tested by pulling, cooling and feeling a thread. The melt is fritted by pouring into water. The frit is dried, ground and sieved, and then wet milled with water, clay, bentonite and pH adjustors.

Abstract: Glass frits containing lithium are used in thick film palladium-silver compositions which after firing result in conductors or resistors that exhibit very low resistivity and TCR.

Abstract: A conductive glass lining composition includes 100 parts by weight of a frit and 0.05 to 1.5 parts by weight of a metal fibers of 0.1 to 30 .mu.m in diameter, 1.5 to 10 mm in length and a length-to-diameter ratio of not less than 50.

Abstract: The present invention provides a conductive paste and a conductor and a ceramic substrate using the conductive paste which, when used as a conductive material for a ceramic substrate, can prevent cutting of the conductor in a through hole and peeling of the conductor from the through hole side wall during burning, thereby improving the yield and reliability of through hole conduction. The conductive paste contains Cu powder, Ni powder, glass frit and an organic vehicle, the amount of the Ni powder being about 1 to 20% by weight relative to the total amount of the Cu powder and the Ni powder, and the amount of the glass frit being about 1 to 40% by weight relative to the total amount of the Cu powder, the Ni powder and the glass frit.

Abstract: A glaze composition for refractory materials includes 30 to 80% by weight of at least one lead-free and barium-free borosilicate, borophosphate or phosphate glass frit having a dilatometric softening point of below 600.degree. C.; 2 to 30% by weight of aluminium powder or an aluminium alloy powder; 2 to 30% by weight of silicon powder or silicon alloy powder, up to 10% by weight of an inhibitor; and optionally a refractory filler, a clay or other additives. The glaze composition is of particular use as a glaze for carbon containing refractory materials such as submerged entry nozzles and graphite electrodes.

Abstract: The present invention provides an anti-bacterial and anti-fungal glaze composition for ceramic products formed by incorporating a silver-containing substance; and a refractory and/or glass composition. The present invention can be used in the manufacture of ceramic products requiring sanitary properties such as tile, sanitary earthenware, commodes, bath tubs and the like, and according to the present invention, anti-bacterial and anti-fungal properties can be effectively exhibited therein. In particular, the present invention can be used in sink basins, tile, commodes, bath tubs, and the like of hospitals, hotels and public facilities.

Abstract: A method of forming electrically conducting silver tracks on glass, by applying a silver composition comprising solids portion in a carrier medium to the glass and then firing the composition to form the tracks, wherein the solids portion contains elemental silver and/or precursor thereof and contains also elemental boron.

Abstract: A ceramic mixture of a crystallizable ZnO--MgO--B.sub.2 O.sub.3 --SiO.sub.2 glass mixed with a non-crystallizing lead-based glass and one or more oxide fillers forms a fired ceramic that has a TCE compatible with that of kovar. Green tapes made from the ceramic mixture aligned with a kovar support substrate when fired have excellent dielectric and low loss properties.

Abstract: An improved medium for use in preparing ceramic coating compositions. The improvement resides in the employment of pantothenol as a rheology modifier in the medium.

Abstract: Prior art production of purple pigments based on colloidal gold on stovable/sinterable/fireable support material involves the reduction of a gold compound in the presence of a chemical reducing agent.Purple pigments may be produced more simply according to the invention by intimately mixing and/or grinding the support material and the gold compound in dry form or by bringing an aqueous solution or suspension of a gold compound and a support material into contact and then thermally treating the mixture at a temperature above the decomposition temperature of the gold compound and below the sintering temperature of the support material, wherein the gold compound is converted into colloidal gold.

Abstract: A metal/glass paste composition with a high metal to glass ratio and a method of using the paste to adhesively connect an integrated circuit to a ceramic substrate. The glass composition consists essentially of, by weight percent on an oxide basis:about 40-65% Ag.sub.2 Oabout 15-35% V.sub.2 O.sub.5about 0-30% PbO.sub.2about 0-20% TeO.sub.2The essentially resin-free paste utilizes the glass composition described above and, for a metallized ceramic substrate, has a metal:glass ratio of from about 8:1 up to about 11.5:1. For a bare (nonmetallized) ceramic substrate, the paste has a metal:glass ratio of from about 8:1 up to about 32:1.

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 the three basic components: silver flake, water soluble polymer binder, water. Up to about 10 wt % of a substantially completely water soluble, organic co-solvent can be an optional, additional ingredient. 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 compositions can include surfactants, defoamers and antisettling agents.

Abstract: A resistive paste comprising (a) a solid content comprising (al) a resistive material having a composition of Nb.sub.x La.sub.1-x B.sub.6-4x, wherein x is from 0.1 to 0.9 mol, and (a2) non-reducing glass frit, (b) from 1 to 10% by weight, based on the solid content, of TiO.sub.2 as a first additive, (c) from 1 to 10% by weight, based on the solid content, of at least one second additive selected from the group consisting of Co.sub.3 O.sub.4, CoO, and Fe.sub.2 O.sub.3, and (d) an organic vehicle.

Abstract: Mixed alkaline earth boroaluminate glasses comprising BaO combined with at least one of CaO, SrO and MgO. The glasses are useful as frit binders in aluminum nitride-compatible, thick-film paste compositions used in thick-film printing of hybrid microelectronic circuits on aluminum nitride substrates.

Abstract: A flux composition containing as a first component:50 to 75% by weight Bi.sub.2 O.sub.3 ;15 to 25% by weight SiO.sub.2 ;4 to 10% by weight B.sub.2 O.sub.3 ;2 to 9% by weight ZnO;1 to 4% by weight alkali oxide; andoptionally as a second component a compound selected from CaO, ZrO.sub.2, MgO, SrO, Al.sub.2 O.sub.3, SnO.sub.2, TiO.sub.2, BaO, MoO.sub.3, F.sub.2 and Fe.sub.2 O.sub.3. The flux composition is typically used as a major component of a paint composition having minor portions of a pigment and liquid medium. The paint compositions are particularly suited for coating glass.

Abstract: The present invention relates to a composition for forming an electroconductive pattern excellent in electroconductivity, comprising as main components (a) an alloy powder which is obtained by cooling and finely dividing an eutectic mixture comprising 99.5%-94.5% by weight of nickel and 0.5%-5.5% by weight of boron, (b) a glass frit and (c) an organic vehicle, and a process for forming an electroconductive pattern with the composition.

Abstract: A conductive paste capable of forming an excellent moisture-resistant electrode with a favorable ohmic contact formed between the electrode and the semiconductor element, said conductive paste comprising an aluminum powder and a glass frit containing at least one compound selected from the group consisting of barium borosilicate and calcium borosilicate as the principal component thereof, said glass frit accounting for 5 to 40% by weight with respect to the aluminum powder. Also claimed is a semiconductor ceramic component using the same.

Abstract: A colored ceramic composition comprising, as inorganic components, from 55 to 75% by weight of a glass powder, from 1 to 17% by weight of a metal powder, from 1 to 25% by weight of a scale-like refractory filler and from 13 to 30% by weight of a heat-resistant coloring pigment.

Abstract: A glass composition and method of use having unique crystallization and crystal remelt properties is disclosed. The glass composition consists essentially by weight percent on an oxide basis:about 40-65% Ag.sub.2 Oabout 15-35% V.sub.2 O.sub.5about 0-30% PbO.sub.2about 0-20% TeO.sub.2The present invention also contemplates a unique, essentially resin-free organic system that utilizes the novel glass composition described above and has a ratio of silver to glass (solids) of from about 3 to 1 to about 8 to 1.

Abstract: This invention provides a hard, strong ceramic body and method of manufacture whereby the body, after being formed into the desired shape and size can then be fired into a monolithic structure without any shrinkage or distortion during the firing operation. The "green," unfired ceramic composition comprises one or more powdered refractories and one or more powdered glasses which have a melting point below the softening point of the selected refractory material. Preferred refractories are alumina and zirconia; preferred glasses are lead borosilicate and barium borosilicate. The composition may also contain a metal powder.

Abstract: A paint composition containing as a major portion a flux composition including a first flux containing silica, alkali oxide, zinc oxide and boron oxide but containing no lead or lithium and optionally a second flux, and minor portions of pigment and a liquid medium, particularly suited for automobile windshields.

Abstract: Conductive paste for via connection of a multilayer ceramic substrate, comprising: an inorganic component which consists of 30.0 to 70.0% by weight of powder of conductive material and the remainder being one of glass powder having a softening point higher than a starting point of sintering of insulating material and crystalline glass ceramic powder having a glass transition point higher than the starting point of sintering of the insulating material; and an organics vehicle component which consists of at least organic binder and solvent.

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 curved, laminated car glazing having a decorative enamel coating formed as a frame along the edge of a laminated glazing, on a surface adjacent to the intermediate, thermoplastic layer of one of the individual glass sheets is prepared by printing an enamel as the decorative coating on a glass sheet, which is then dried, printing an enamel containing metallic silver as a narrow strip on the decorative coating, firing or baking the coated glass sheet, superimposing the baked glass sheet with a mating glass sheet with the printed coating on the inside, and with the result that the bent sheets do not stick together because of the presence of the silver-containing strip, and completing the lamination of the curved glass sheets.

Abstract: The invention is directed to a thick film paste composition comprising electrically conductive particles and finely divided particles of a glass composition comprising by mole % 5-70% Bi.sub.2 O.sub.3, 18-35% SiO.sub.2, 0.1-40% CuO, 0.5-25% ZnO, 0.5-40% CoO, 0.5-40% Fe.sub.2 O.sub.3, and 0.5-40% MnO, which the glass composition is free of lead and cadmium, all dispersed in an organic medium.

Abstract: An improved gold paste for use in the manufacture of ceramic circuit boards is disclosed, which has a composition comprising an inorganic component, an organic binder, a solvent. The inorganic component contains (a) 84-94 wt % powdery gold with a particle size of 0.3-0.7 .mu.m, (b) 0.3-2.0 wt % powdery V.sub.2 O.sub.5 with a particle size of 0.3-2.0 .mu.m, and (c) 0.3-2.0 wt % powdery CuO with a particle size of 0.3-2.0 .mu.m.

Abstract: Disclosed herein is copper paste for forming a conductive thick film, which contains 80 wt. % to 95 wt. % of spherical first copper powder of 1 .mu.m to 10 .mu.m in mean particle diameter, 0.5 wt. % to 15 wt. % of second copper powder of less than 1 .mu.m in mean particle diameter, and 1 wt. % to 15 wt. % of glass frit of 0.5 .mu.m to 2.0 .mu.m in mean particle diameter respectively as solid components. A conductive thick film obtained by applying the copper paste onto a substrate and baking the same exhibits excellent solderability as well as high adhesive strength to the substrate, and this adhesive strength is excellently maintained even if the thick film is exposed to a heat hysteresis.

Abstract: A ceramic material for electronic circuit devices is sintered at less than r equal to 1000.degree. C. temperature. A filler material such as quartz and a glassy binder RO--Al.sub.2 O.sub.3 --B.sub.2 O.sub.3 are mixed together along with an appropriate glassy binder prior to firing. RO is drawn from the group of metal oxides MgO, CaO, SrO, BaO, ZnO or CdO and the glassy binders form no more than 40 vol % of the ceramic material. The glassy binder has a suitable viscosity and other properties so that after it is mixed with the quartz filler, sintering occurs at the relatively low temperature. As a consequence, high conductivity conductors made of copper, silver and gold can be appropriately metallized prior to firing. The strength and low dielectric constant of the ceramic material make the material well adapted for ceramic substrates, thick films and the like which are used in VHSIC and VLSI applications.

Abstract: A resistive paste comprising (a) a mixture of a resistive material having a composition of Nb.sub.x La.sub.1-x B.sub.6-4x, wherein x is from 0.1 to 0.9 mol, and non-reducing glass frit, (b) at least one additive selected from the group consisting of B.sub.2 O.sub.3, SiO.sub.2, Al.sub.2 O.sub.3, CrB, NiB, TaSi.sub.2, and Ta in an amount of from 1 to 10% by weight based on said mixture (a), and (c) an organic vehicle, and a resistive paste comprising (a) a mixture of a resistive material having a composition of Nb.sub.x La.sub.1-x B.sub.6-4x, wherein x is from 0.1 to 0.9 mol, and non-reducing glass frit, (b) AlN in an amount of from 5 to 25% by weight based on said mixture (a), and (c) an organic vehicle. The resistive pastes provide a resistor having its temperature coefficient of resistivity shifted to the plus (+) direction in a high surface resistivity range.

Abstract: A screen-printable thick film paste composition suitable for forming conductive patterns on a rigid substrate comprising:(a) finely divided particles of a lead-free glass composition having a softening point log (eta)=7.6 poise from 400.degree. C.-650.degree. C., a log (eta.) specific viscosity in a range from 2 at 500.degree. C. to 5 at 700.degree. C. and consisting essentially of, by weight 65-95% Bi.sub.2 O.sub.3, 2-15% SiO.sub.2, 0.1-9% B.sub.2 O.sub.3, 0-5% Al.sub.2 O.sub.3, 0-5% CaO, and 0-20% ZnO; and(b) electrically conductive particles; andall of (a) and (b) being dispersed in (c) an organic medium.

Abstract: A conductive paste contains at least a conductive powder and a glass frit. The glass frit includes 9.0 to 45.0 wt % of SiO.sub.2 and 1.0 to 18.5 wt % of CaO, the balance being ZnO, B.sub.2 O.sub.3 and Li.sub.2 O. The glass frit may contain not more than 6.0 wt % of Al.sub.2 O.sub.3 incorporated therein as additive.

Abstract: An ohmic electrode material for semiconductor ceramics comprises 48-96 weight % of aluminum and 4-52 weight % of silicon. A semiconductor ceramics element includes a semiconductor ceramics such as that of barium titanate system semiconductor ceramics and on the surface of the semiconductor ceramics is formed an ohmic electrode from the ohmic electrode material.

Abstract: Silver-containing conductive coatings are provided. The coatings are prepared from compositions comprising silver particulate material, a low firing lead-free glass frit and a liquid organic vehicle. The composition is coated on a substrate and fired to fuse the silver-containing conductive coating to the substrate. The coatings find particular use in the field of automotive backlights. The coatings are of special value in eliminating solder wet through migration.

Abstract: A measurement circuit utilizing a thick film sense resistor containing palladium and silver in a weight ratio of about 56/44 to about 60/40 and a specific glass frit composition so that the sense resistor achieves low resistivity and controlled TCR.

Abstract: A thick composition comprising a mixture of: (a) 30-80% wt. finely divided particles of palladium powder having a surface area of 3-10 square meters/gm and density of 0.5-0.7 grams/cc; (b) 2-10% wt. finely divided particles of a refractory inorganic binder; all of A and B being dispersed in (c) 68-10% wt. of an organic medium; wherein the firing temperature of the composition is from 800.degree.-950.degree. C. This thick film composition is useful for forming detector electrodes within hydrogen sensors.

Abstract: A glass composition and method of use having unique crystallization and crystal remelt properties is disclosed. The glass composition consists essentially by weight percent on an oxide basis:about 40-65% Ag.sub.2 Oabout 15-35% V.sub.2 O.sub.5about 0-30% PbO.sub.2about 0-20% TeO.sub.2The present invention also contemplates a unique, essentially resin-free organic system that utilizes the novel glass composition described above.

Abstract: Low-expansion devitrifying glass compositions exhibiting a negative-slope temperature coefficient of expansion over a temperature range from about 125.degree. C. to about 500.degree. C. are useful for the fabrication of thick film copper via-fill inks of multilayer printed-circuit boards.