Ink for screen printing
AssigneeDaicel Corporation
InventorTsugio Watanabe
Life of this patent
Estimating the term…
Abstract
Provided is an ink for use in electronic component production making use of screen printing, which is suitable for actually allowing fine lines with high precision to be drawn in screen printing, and for actually allowing successive screen printing operations to be performed. The ink for screen printing of the present invention includes surface-modified silver nanoparticles (A) and a solvent (B), and has a viscosity at a shear rate of 10 (1/s) and 25° C. of 60 Pa·s or more. The surface-modified silver nanoparticles (A) each include a silver nanoparticle and an amine-containing protective agent coating the silver nanoparticle. The solvent (B) includes at least a terpene solvent. In solvent (B), a content of solvents having a boiling point of less than 130° C. is 20 wt % or less based on the total amount of solvents.
Claims22
An ink comprising surface-modified silver nanoparticles (A), a solvent (B), and a binder resin (C);
- wherein the ink has a viscosity at a shear rate of 10 (1/s) and 25° C. of 344 Pa·s or more;
- wherein the ink has a TI value, viscosity at a shear rate of 10 (1/s)/viscosity at a shear rate of 100 (1/s), at 25° C. of 3.0 to 5.6;
- wherein the surface-modified silver nanoparticles (A) each comprises a silver nanoparticle, and an amine-containing protective agent coating a surface of the silver nanoparticle;
- and
- wherein the solvent (B) comprises a terpene solvent having a boiling point of 200° C. or more and a glycol ether solvent having a boiling point of 130° C. or more, and a content of solvents having a boiling point of less than 130° C., in the solvent (B), being 20 wt % or less based on the total amount of solvents.
An ink comprising surface-modified silver nanoparticles (A), a solvent (B), and a binder resin (C);
- wherein the ink has a viscosity at a shear rate of 10 (1/s) and 25° C. of 344 Pa·s or more;
- wherein the ink has a TI value, viscosity at a shear rate of 10 (1/s)/viscosity at a shear rate of 100 (1/s), at 25° C. of 3.0 to 5.6;
- wherein the surface-modified silver nanoparticles (A) each comprises a silver nanoparticle, and an amine-containing protective agent coating a surface of the silver nanoparticle;
- and
- wherein the solvent (B) comprises a terpene solvent having a boiling point of 200° C. or more, and a content of solvents having a boiling point of less than 130° C., in the solvent (B), being 20 wt % or less based on the total amount of solvents.
An ink comprising surface-modified silver nanoparticles (A), a solvent (B), and a binder resin (C);
- wherein the ink has a viscosity at a shear rate of 10 (1/s) and 25° C. of 60 Pa·s or more;
- wherein the ink has a TI value, viscosity at a shear rate of 10 (1/s)/viscosity at a shear rate of 100 (1/s), at 25° C. of 3.0 to 5.6;
- wherein the surface-modified silver nanoparticles (A) each comprises a silver nanoparticle, and an amine-containing protective agent coating a surface of the silver nanoparticle;
- and
- wherein the solvent (B) comprises a terpene solvent having a boiling point of 200° C. or more and a glycol ether solvent having a boiling point of 130° C. or more, and a content of solvents having a boiling point of less than 130° C., in the solvent (B), being 1.0 wt % or more and 8 wt % or less based on the total amount of solvents.
An ink comprising surface-modified silver nanoparticles (A), a solvent (B), and a binder resin (C);
- wherein the ink has a viscosity at a shear rate of 10 (1/s) and 25° C. of 60 Pa·s or more;
- wherein the ink has a TI value, viscosity at a shear rate of 10 (1/s)/viscosity at a shear rate of 100 (1/s), at 25° C. of 3.0 to 5.6;
- wherein the surface-modified silver nanoparticles (A) each comprises a silver nanoparticle, and an amine-containing protective agent coating a surface of the silver nanoparticle;
- wherein the solvent (B) comprises a terpene solvent having a boiling point of 200° C. or more and a glycol ether solvent having a boiling point of 130° C. or more, and a content of solvents having a boiling point of less than 130° C., in the solvent (B), being 20 wt % or less based on the total amount of solvents;
- and
- wherein a sintered body obtained by sintering the ink at 120° C. for 30 minutes has a volume resistivity of 6 μΩcm or less.
Dependencies are inferred from the claim text.