US2014186524A1PendingUtilityA1

Solvent systems for metals and inks

61
Assignee: ALPHA METALSPriority: Sep 22, 2006Filed: Dec 3, 2013Published: Jul 3, 2014
Est. expirySep 22, 2026(~0.2 yrs left)· nominal 20-yr term from priority
Inventors:Oscar KhaselevMichael T. MarcziBawa SinghNitin Desai
C09D 11/52H05K 2203/122H05K 1/097C09D 11/30
61
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Claims

Abstract

Solvent systems and dispersions including such solvent systems for use in compositions including metals and inks are provided. In certain examples, the solvent systems may be used with capped metal particles to provide a dispersion that may be used to print conductive lines.

Claims

exact text as granted — not AI-modified
1 . An ink comprising capped metal particles dispersed in a solvent system that provides a viscosity of about 10-12 cPs to the ink at a printing temperature. 
     
     
         2 . The ink of  claim 1  in which the capped metal particles are silver particles capped with hexadecylamine or silver particles capped with dodecylamine. 
     
     
         3 . The ink of  claim 2  in which the silver particles are silver nanoparticles. 
     
     
         4 . The ink of  claim 1  in which the solvent system comprises a first component and a second component, the first component having a dielectric constant that is lower than the dielectric constant of the second component. 
     
     
         5 . The ink of  claim 4  in which the first solvent is a hydrocarbon. 
     
     
         6 . The ink of  claim 4  in which the second solvent is an alcohol. 
     
     
         7 . The ink of  claim 5  in which the second solvent is an alcohol. 
     
     
         8 . The ink of  claim 4  further comprising at least one viscosity modifier. 
     
     
         9 . The ink of  claim 1  in which the solvent system also provide a surface tension of about 30-32 dynes/cm to the ink at the printing temperature. 
     
     
         10 . An ink comprising capped metal particles dispersed in a solvent system that provides a surface tension of about 30-32 dynes/cm to the ink at a printing temperature. 
     
     
         11 . The ink of  claim 10  in which the capped metal particles are silver particles capped with hexadecylamine or silver particles capped with dodecylamine. 
     
     
         12 . The ink of  claim 11  in which the silver particles are silver nanoparticles. 
     
     
         13 . The ink of  claim 10  in which the solvent system comprises a first component and a second component, the first component having a dielectric constant that is lower than the dielectric constant of the second component. 
     
     
         14 . The ink of  claim 13  in which the first solvent is a hydrocarbon. 
     
     
         15 . The ink of  claim 13  in which the second solvent is an alcohol. 
     
     
         16 . The ink of  claim 14  in which the second solvent is an alcohol. 
     
     
         17 . The ink of  claim 13  further comprising at least one viscosity modifier. 
     
     
         18 . The ink of  claim 10  in which the solvent system also provide a viscosity of about 10-12 cPs to the ink at the printing temperature. 
     
     
         19 . A method of producing an electrical conductor comprising disposing an ink comprising capped metal particles dispersed in a solvent system and having a viscosity of about 10-12 cPs on a substrate. 
     
     
         20 . The method of  claim 19  further comprising treating the substrate to remove the solvent system of the ink. 
     
     
         21 - 25 . (canceled)

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