Claims
- 1. A material for making a conductive pattern, said material comprising a support and a heat-differentiable element, said heat-differentiable element comprising an outermost layer containing a polyanion and an intrinsically conductive polymer and optionally a second layer contiguous with said outermost layer, characterized in that said outermost layer and/or said optional second layer contains hydrophobic thermocoagulable latex particles in a weight ratio range with respect to said intrinsically conductive polymer in the range of 20:1 to 1:5, said hydrophobic thermocoagulable latex particles are capable upon heating of increasing the conductivity of the heated parts of said outermost layer relative to the unheated parts of said outermost layer and/or changing the removability of the heated parts of said outermost layer relative to the unheated parts of said outermost layer and said heat-differentiable element does not comprise a di- or polyhydroxy organic compound or an aprotic compound with a dielectric constant, ε, ≧15.
- 2. Material according to claim 1, wherein said conductive pattern is an electroconductive pattern.
- 3. Material according to claim 1, wherein the heat-differentiable element contains a weight ratio of hydrophobic thermocoagulable latex particles to the intrinsically conductive polymer in the range of 9:1 to 1:3.
- 4. Material according to claim 1, wherein said intrinsically conductive polymer is a polymer or copolymer of a substituted or unsubstituted thiophene.
- 5. Material according to claim 4, wherein said polymer of a substituted or unsubstituted thiophene corresponds to formula (II):
- 6. Material according to claim 1, wherein said polyanion is poly(styrenesulphonate).
- 7. Material according to claim 1, wherein said heat-differentiable element further contains a compound capable of converting absorbed light into heat.
- 8. A method of making a conductive pattern on a support comprising the steps of:
providing a material for making a conductive pattern, said material comprising a support and a heat-differentiable element, said heat-differentiable element comprising an outermost layer containing a polyanion and an intrinsically conductive polymer and optionally a second layer contiguous with said outermost layer, characterized in that said outermost layer and/or said optional second layer contains hydrophobic thermocoagulable latex particles which are capable upon heating of increasing the conductivity of the heated parts of said outermost layer relative to the unheated parts of said outermost layer and/or changing the removability of the heated parts of said outermost layer relative to the unheated parts of said outermost layer and said heat-differentiable element does not comprise a di- or polyhydroxy organic compound; image-wise heating said material thereby obtaining a differentiation of the surface conductivity and/or removability with a developer of said heated and said unheated areas of said outermost layer; optionally processing said material with said developer, thereby at least partially removing areas of said outermost layer optionally together with a layer contiguous therewith; and optionally treating said material with a conductivity enhancement agent to increase the conductivity of said non-removed areas of said outermost layer.
- 9. Method according to claim 8, wherein said image-wise heating is carried out with a thermal head or a laser.
- 10. Method according to claim 8, wherein the laser is an infrared laser.
- 11. Method according to claim 8, wherein said conductive pattern has a surface resistance lower than 106 Ω/square.
- 12. A process for using a material for making a conductive pattern, said material comprising a support and a heat-differentiable element, said heat-differentiable element comprising an outermost layer containing a polyanion and an intrinsically conductive polymer and optionally a second layer contiguous with said outermost layer, characterized in that said outermost layer and/or said optional second layer contains hydrophobic thermocoagulable latex particles which are capable upon heating of increasing the conductivity of she heated parts of said outermost layer relative to the unheated parts of said outermost layer and/or changing the removability of the heated parts of said outermost layer relative to the unheated parts of said outermost layer and said heat-differentiable element does not comprise a di- or polyhydroxy organic compound, in making an electronic circuit in the production of an electric or semiconductor device such as a printed circuit board, an integrated circuit, a display or touch screen, an electroluminescent device or a photovoltaic cell.
- 13. A process for using a method of making a conductive pattern on a support comprising the steps of:
providing a material for making a conductive pattern, said material comprising a support and a heat-differentiable element, said heat-differentiable element comprising an outermost layer containing a polyanion and an intrinsically conductive polymer and optionally a second layer contiguous with said outermost layer, characterized in that said outermost layer and/or said optional second layer contains hydrophobic thermocoagulable latex particles which are capable upon heating of increasing the conductivity of the heated parts of said outermost layer relative to the unheated parts of said outermost layer and/or changing the removability of the heated parts of said outermost layer relative to the unheated parts of said outermost layer and said heat-differentiable element does not comprise a di- or polyhydroxy organic compound; image-wise heating said material thereby obtaining a differentiation of the surface conductivity and/or removability with a developer of said heated and said unheated areas of said outermost layer; optionally processing said material with said developer, thereby at least partially removing areas of said outermost layer optionally together with a layer contiguous therewith; and optionally treating said material with a conductivity enhancement agent to increase the conductivity of said non-removed areas of said outermost layer, in making an electronic circuit in the production of an electric or semiconductor device such as a printed circuit board, an integrated circuit, a display or touch screen, an electroluminescent device or a photovoltaic cell.
Priority Claims (1)
Number |
Date |
Country |
Kind |
01000739.1 |
Dec 2001 |
EP |
|
Parent Case Info
[0001] The application claims the benefit of U.S. Provisional Application No. 60/349,530 filed Jan. 18, 2002, which is incorporated by reference.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60349530 |
Jan 2002 |
US |