Conductive ink

US7968011B2 · kind B2 · utility

Assignee

• DSM IP ASSETS B.V. · NL

Inventors

• Gerardus Cornelis Overbeek · Waalwijk, NL
• Michael Arnoldus Jacobus Schellekens · Waalwijk, NL
• Alfred Jean Paul Bückmann · Echt, NL

Key dates

• Filing date: Mar 6, 2007
• Grant date: Jun 28, 2011
• Expiry date: Jan 16, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/265
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A conductive ink comprising 10 to 75 wt % of at least one solvent comprising ≦20 wt % water; 0 to 50 wt % of at least one radiation curable material having a Mn in the range of from 50 to 10,000 g/mol; 5 to 70 wt % of at least one polyurethane having a Mw in the range of from 4,000 to 70,000 g/mol, 0 to 5 wt % of isocyanate-reactive component(s) bearing ionic or potentially ionic water-dispersing groups and a free isocyanate group content <0.5 wt % and 20 to 85 wt % of a conductive material.