Abstract: This invention is directed to a polymer thick film moisture barrier layer dielectric composition comprising thermoplastic urethane resin, thermoplastic phenoxy resin, diacetone alcohol and fumed silica. Dielectrics made from the composition can be used in various electronic applications to protect electrical elements and particularly to insulate and protect both the conductive thermoformable silver above it and the polycarbonate substrate below it in capacitive switch applications. The thermoformed electrical circuit may be subsequently subjected to an injection molding process.

Abstract: This invention is directed to a polymer thick film moisture barrier layer dielectric composition comprising thermoplastic urethane resin, thermoplastic phenoxy resin, diacetone alcohol and fumed silica. Dielectrics made from the composition can be used in various electronic applications to protect electrical elements and particularly to insulate and protect both the conductive thermoformable silver above it and the polycarbonate substrate below it in capacitive switch applications.

Abstract: This invention provides a method for using a polymer thick film conductor composition to form an electrical conductor in an electrical circuit, the method subjecting the deposited thick film conductor composition to lamination. The invention also provides a method for reducing the resistance of an electrical conductor formed from a polymer thick film conductor composition, the method comprising the step of subjecting the electrical conductor to lamination. The invention further provides devices containing electrical conductors made by these methods.

Abstract: This invention is directed to a polymer thick film conductive composition that may be used in applications where thermoforming of the base substrate occurs, e.g., as in capacitive switches. Polycarbonate substrates are often used as the substrate and the polymer thick film conductive composition may be used without any barrier layer. Thermoformable electric circuits benefit from the presence of an encapsulant layer over the dried polymer thick film conductive composition. The electrical circuit is subsequently subjected to an injection molding process.

Abstract: The invention is directed to a polymer thick film conductive composition comprising (a) a conductive silver-coated copper powder; and (b) an organic medium comprising two different resins and organic solvent, wherein the ratio of the weight of the conductive silver-coated copper powder to the total weight of the two different resins is between 5:1 and 45:1. The invention is further directed to a method of electrode grid and/or bus bar formation on thin-film photovoltaic cells using the composition and to cells formed from the method and the composition.

Abstract: This invention provides a method for using a polymer thick film conductor composition to form an electrical conductor in an electrical circuit, the method subjecting the deposited thick film conductor composition to lamination. The invention also provides a method for reducing the resistance of an electrical conductor formed from a polymer thick film conductor composition, the method comprising the step of subjecting the electrical conductor to lamination. The invention further provides devices containing electrical conductors made by these methods.

Abstract: This invention provides a method for using a polymer thick film conductor composition to form an electrical conductor in an electrical circuit, the method subjecting the deposited thick film conductor composition to lamination. The invention also provides a method for reducing the resistance of an electrical conductor formed from a polymer thick film conductor composition, the method comprising the step of subjecting the electrical conductor to lamination. The invention further provides devices containing electrical conductors made by these methods.

Abstract: This invention is directed to a polymer thick film conductive composition that may be used in applications where thermoforming of the base substrate occurs, e.g., as in capacitive switches. Polycarbonate substrates are often used as the substrate and the polymer thick film conductive composition may be used without any barrier layer. Thermoformable electric circuits benefit from the presence of an encapsulant layer over the dried polymer thick film conductive composition. The electrical circuit is subsequently subjected to an injection molding process.

Abstract: This invention provides a method for using a polymer thick film conductor composition to form an electrical conductor in an electrical circuit, the method subjecting the deposited thick film conductor composition to photonic sintering. The invention also provides a method for reducing the resistance of an electrical conductor formed from a polymer thick film conductor composition, the method comprising the step of subjecting the electrical conductor to photonic sintering. The invention further provides devices containing electrical conductors made by these methods.

Abstract: This invention is directed to a polymer thick film conductive composition that may be used in applications where thermoforming of the base substrate occurs, e.g., as in capacitive switches. Polycarbonate substrates are often used as the substrate and the polymer thick film conductive composition may be used without any barrier layer. Thermoformable electric circuits benefit from the presence of an encapsulant layer over the dried polymer thick film conductive composition. The electrical circuit is subsequently subjected to an injection molding process.

Abstract: This invention provides a polymer thick film conductor composition comprising (a) a solder alloy powder selected from the group consisting of (i) a tin, silver, and copper alloy powder, (ii) a fin and bismuth alloy powder, and (iii) mixtures thereof, (b) a metal selected from the group consisting of silver, copper, gold, aluminum and mixtures thereof, and (c) an organic medium comprising a thermoplastic resin dissolved in an organic solvent, wherein the solder alloy powder and the metal are dispersed in the organic medium.

Abstract: The invention is directed to a polymer thick film encapsulant composition comprising thermoplastic fluoropolymer resin and acrylic resin dissolved in organic solvents. The deposited encapsulant composition is processed at a time and energy sufficient to remove all solvent and form an encapsulant. The invention is further directed to using the encapsulant composition to form an encapsulant in PTC heater circuitry and, in particular, in PTC heater circuitry in mirror heater and seat heater applications.

Abstract: The invention is directed to a polymer thick film silver composition comprising: (a) conductive silver flakes and (b) an organic medium consisting of (1) acrylic organic polymeric binder; and (2) organic solvent. The composition may be processed at a time and energy sufficient to remove all solvent. The invention is further directed to novel method(s) of circuitry formation on printed wiring board constructions.

Abstract: This invention provides a polymer thick film conductor composition comprising (a) a solder alloy powder selected from the group consisting of (i) a tin, silver, and copper alloy powder, (ii) a tin and bismuth alloy powder, and (iii) mixtures thereof, (b) a metal selected from the group consisting of silver, copper, gold, aluminum and mixtures thereof, and (c) an organic medium comprising a resin that is a vinyl co-polymer resin of vinylidene chloride and acrylonitrile or a phenoxy resin dissolved in an organic solvent, wherein the solder alloy powder and the metal are dispersed in the organic medium.

Abstract: The invention is directed to a polymer thick film composition comprising solder alloy powder and organic medium comprising organic polymeric binder and solvent. The composition may be processed at a time and temperature necessary to remove all solvent. The invention is further directed to method(s) of electrode formation on circuits using such compositions and to articles formed from such methods and/or compositions.

Abstract: This invention provides a polymer thick film conductor composition comprising (a) a solder alloy powder selected from the group consisting of (i) a tin, silver, and copper alloy powder, (ii) a tin and bismuth alloy powder, and (iii) mixtures thereof, (b) a metal selected from the group consisting of silver, copper, gold, aluminum and mixtures thereof, and (c) an organic medium comprising a resin that is a vinyl co-polymer resin of vinylidene chloride and acrylonitrile or a phenoxy resin dissolved in an organic solvent, wherein the solder alloy powder and the metal are dispersed in the organic medium.

Abstract: This invention relates to a polymer thick film shielding composition comprising “soft” ferrite powder and an organic medium comprising a thermoplastic resin dissolved in an organic solvent.

Abstract: The invention is directed to a polymer thick film positive temperature coefficient carbon resistor composition comprising: (a) organic medium comprising (i) organic polymeric binder; and (ii) solvent; and (b) conductive carbon powder. The composition may be processed at a time and temperature necessary to remove all solvent. The invention is further directed to PTC circuits comprising the composition of the invention which has been dried to remove the solvent and to articles, e.g., mirror heaters and seat heaters, containing such PTC circuits.

Abstract: This invention is directed to a polymer thick film conductive composition. More specifically, the polymer thick film conductive composition may be used in applications where thermoforming of the base substrate occurs as in capacitive switches. Polycarbonate substrates are often used as the substrate and the polymer thick film conductive composition may be used without any barrier layer. Thermoformable electric circuits benefit from the presence of an encapsulant layer over the dried polymer thick film conductive composition.

Abstract: This invention is directed to a polymer thick film conductive composition. More specifically, the polymer thick film conductive composition may be used in applications where thermoforming of the base substrate occurs as in capacitive switches. Polycarbonate substrates are often used as the substrate and the silver conductor composition may be used without any barrier layer.