Method for Producing an Ink, Ink, and Use of Same

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a method for producing inks containing metal or metal oxide nanoparticles (0.1 to 20 nm in size) that are stabilized with short-chain, branched organic molecules. These stabilized nanoparticles are dispersed in solvents—preferably non-toxic, food-compatible solvents such as terpenes—to form inks with very low sintering temperatures (<200°C). The resulting inks are particularly suitable for printing conductive or semiconductive patterns on temperature-sensitive substrates like polymer films or paper, which can be used in printed electronics and food packaging.

Use CasesContent extracted from patent full text and abstract with AI.

• Printed electronics on polymer or paper substrates, such as flexible circuits or antennas for smart packaging.
• Printing temperature sensors or electrodes for electrochemical sensors in food packaging.
• Inkjet or other printing of conductive tracks for flexible displays, RFID tags, or wearable electronics.
• Printable electronics for rapid prototyping or manufacturing low-cost electronic components.
• Printing of semiconductive elements for sensors, low-temperature transistors, or related devices on diverse substrates.

BenefitsContent extracted from patent full text and abstract with AI.

• Low sintering temperature (<200°C), allowing use on heat-sensitive substrates like plastics or paper.
• Compatible with environmentally friendly and food-safe solvents and additives, enabling use in food packaging.
• Enables printing of electronic or sensing components directly onto flexible or biodegradable substrates.
• Lower production costs and environmental impact—can use high-purity, inexpensive starting materials and less toxic solvents.
• High purity of nanoparticles, resulting from a flexible synthesis route (top-down or bottom-up), leads to better performance and reliability.
• Stabilizing agents are selected to sublimate off during sintering, ensuring high conductivity of the printed features.
• Customizable nanoparticle size, composition, and ink formulation for a range of electronic applications.

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Inventors & Applicants

Patent Abstract

The invention relates to a method for producing an ink, characterised by the following steps: a) nanoparticles with a size of 0.1 to a maximum of 20 nm are provided; b) short-chain branched organic stabiliser molecules are bonded to the surface of the nanoparticles by means of a coupling reaction; and c) the stabilised nanoparticles are absorbed in a solvent and dispersed. An ink and the use thereof are also disclosed.