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AssigneeAlpha Assembly Solutions Inc.
InventorsNarahari PUJARI, Jayaprakash SUNDARAMURTHY, Siuli SARKAR, Ravindra M. BHATKAL
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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 circuity and devices.
A flexible dielectric ink composition comprising:
The flexible dielectric ink composition according any of the above claims, wherein the composition further comprises a solvent that has a boiling point between about 150 and 300° C.
The flexible dielectric ink composition according to claim any of the preceding claims, wherein the composition further comprises one or more of a rheology modifier, an elastomer, an adhesion promoter, and a filler.
The flexible dielectric ink composition of any of the preceding claims, wherein the dielectric ink composition is capable of being overprinted on a conductive or carbon line.
The flexible dielectric ink composition of any preceding claims, wherein the dielectric ink is capable of being dispensed to form a line with a resolution of 50 microns or more.
The dielectric ink composition of any of the preceding claims, wherein the dielectric ink is capable of creating an insulative layer or a cross over junction.
The flexible dielectric ink composition according to any of the preceding claims, wherein the dielectric ink is creasable.
The flexible dielectric ink composition according to any of the preceding claims, wherein the dielectric ink is capable of high throughput.
The flexible dielectric ink composition according to any the preceding claims, wherein the dielectric ink is capable of stretching up to 130% without cracking.
The flexible dielectric ink composition according to any of the preceding claims, wherein the composition is curable at low temperature.
A flexible UV curable dielectric ink composition comprising:
A flexible screen-printable dielectric ink composition comprising:
Dependencies are inferred from the claim text.