Dielectric ink composition

• Main Authors: Pujari, Narahari, Bhatkal, Ravindra M, Sarkar, Siuli, Sundaramurthy, Jayaprakash
• Format: Patent
• Language: English
• Published: 10.09.2024
• Subjects: ADHESIVES; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; CORRECTING FLUIDS; DYES; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FILLING PASTES; INKS; LINING MACHINES; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTED CIRCUITS; PRINTING; PRINTING MACHINES OR PRESSES; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention relates to flexible and stretchable UV and thermally curable dielectric ink compositions that can be thermo or vacuum formed. The flexible ink can form a stretchable dielectric coating having excellent adhesion. The dielectric ink compositions can be applied on a circuit board, such as a paper-phenolic resin board, plastic board (PMMA, PET or the like) or a glass-epoxy resin board, by screen printing or the like, followed by heat/UV curing. The compositions are suitable for use in applications such as a capacitive touch, in-mold forming, creating cross over insulation layers, and manufacturing electronic circuitry and devices.