Certains contenus de cette application ne sont pas disponibles pour le moment.
Si cette situation persiste, veuillez nous contacter àObservations et contact
1. (WO2018224137) ENCRE(S) ÉLECTROSTATIQUE(S)
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

What is claimed is:

1 . An electrically conductive electrostatic ink composition comprising: a liquid carrier; and

particles dispersed in the liquid carrier, wherein the particles comprise: thermoplastic resin, and

electrically conductive metal particles comprising:

a core comprising a first metal, and

a shell comprising a second metal,

wherein the shell encloses the core at least partially, and wherein the first metal and the second metal are not the same.

2. The electrically conductive electrostatic ink composition according to claim 1 , wherein the first metal and the second metal are selected from the group consisting of copper, silver, gold, platinum, titanium, chromium, manganese, iron, nickel rhodium, iridium, and combinations thereof.

3. The electrically conductive electrostatic ink composition according to claim 1 , wherein the first metal is copper and the second metal is silver.

4. The electrically conductive electrostatic ink composition according to claim 1 , wherein the metal particles constitute at least 75 wt% of the solids of the electrostatic ink composition.

5. The electrically conductive electrostatic ink composition according to claim 1 , wherein the particles dispersed in the liquid carrier comprise:

from about 5 wt% to about 25 wt% of the thermoplastic resin based on the total weight of the particles dispersed in the liquid carrier; and

from about 75 wt% to about 95 wt% of the metal particles based on the total weight of the particles dispersed in the liquid carrier.

6. The electrically conductive electrostatic ink composition according to claim 1 , wherein the shell substantially completely encloses the core.

7. The electrically conductive electrostatic ink composition according to claim 1 , wherein the metal particles have a diameter of from about 1 μιτι to about 20 μιτι.

8. The electrically conductive electrostatic ink composition according to claim 1 , wherein the metal particles comprise from about 10 wt% to about 40 wt% of the second metal based on the total weight of the metal particles.

9. The electrically conductive electrostatic ink composition according to claim 1 , wherein the thermoplastic resin comprises a polymer selected from a co-polymer of (i) ethylene or propylene and (ii) an ethylenically unsaturated acid of either acrylic acid or methacrylic acid; and ionomers thereof.

10. The electrically conductive electrostatic ink composition according to claim 1 , wherein the electrically conductive electrostatic ink composition further comprises a charge director.

1 1 . The electrically conductive electrostatic ink composition according to claim 1 , wherein the liquid carrier constitutes at least 30 wt% of the electrically conductive electrostatic ink composition.

12. A method of using the electrically conductive electrostatic ink composition according to claim 1 , the method comprising:

adding the electrically conductive electrostatic ink composition according to claim 1 to an ink container.

13. A method of making an electrically conductive electrostatic ink composition, the method comprising:

mixing a liquid carrier and particles dispersed in the liquid carrier, wherein the particles comprise:

thermoplastic resin, and

electrically conductive metal particles comprising:

a core comprising a first metal, and

a shell comprising a second metal,

wherein the shell encloses the core at least partially, and wherein the first metal and the second metal are not the same.

14. The method of making the electrically conductive electrostatic ink composition according to claim 13, wherein the first metal and the second metal are selected from the group consisting of copper, silver, gold, platinum, titanium, chromium, manganese, iron, nickel rhodium, iridium, and combinations thereof.

15. The method of making the electrically conductive electrostatic ink composition according to claim 13, wherein the shell substantially completely encloses the core.