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US 12,655,331 B2Granted
Dry electrode adhesive
AssigneeHenkel AG & Co. KGaA
InventorsCarla Negele, Inge van der Meulen, Stijn Gillissen, Tobias Roschek, Frank Goethel, Alissa Besler, Anja Schneider
Life of this patent
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Abstract
The present invention relates to an ionically conductive pressure sensitive adhesive composition useful as an electrode adhesive, which is an ionically conductive (meth)acrylate based pressure sensitive adhesive allowing prolonged biosignal monitoring times without skin irritation and loss of signal quality.
Claims19
An ionically conductive pressure sensitive adhesive composition comprising:
- a) a (meth)acrylate resin present in an amount of 15 to 75% by weight of total weight of the composition;
- and content of said (meth)acrylate monomer comprising OH-group in said (meth)acrylate resin is at least 20% and no more than 60% by weight of the total weight of the (meth)acrylate resin;
- b) an ionic liquid present in an amount of 0.1 to 35% by weight of the total weight of the composition;
- and
- wherein said composition further comprises
- c) an ionic conductivity promoter, different from the ionic liquid, present in an amount of from 0.1 to 25% by weight of the total weight of the composition and comprising one or more choline salts;
- d) electrically conductive particles;
- e) polyethylene glycol having a weight average molecular weight of from 300 to 1000 g/mol;
- and
- f) a solvent selected from the group consisting of ethyl acetate, butyl acetate, ethylene glycol, propylene glycol and mixtures thereof.
7 more elements
Dependencies are inferred from the claim text.