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US 11,903,320 B2Granted
Method for applying at least one silicone layer by laser transfer printing
AssigneeWacker Chemie AG
InventorsKlaus Eller, Andreas Koellnberger, Johannes Neuwirth
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Abstract
At least one silicone layer is applied to a substrate by a method employing laser transfer printing. The method is suitable for producing sensors, actuators and other EAP layer systems. The silicone layer in these systems may serve as an electrically conducting electrode layer or as a dielectric layer. The method may be configured to be continuous and may be combined with various other coating technologies.
Claims26
A method for applying at least one silicone layer by laser transfer printing, the method comprising the following steps:
- (i) providing a laser source;
- (ii) providing a printing-composition carrier beneath the laser source, the printing-composition carrier being transparent to laser radiation and being coated on the lower side with a crosslinkable silicone composition, and at least the surface of the crosslinkable silicone composition being charged to a potential phi_1;
- (iii) providing a deposition carrier beneath the printing-composition carrier;
- (iv) providing an electrode beneath the deposition carrier, the electrode being charged to a potential phi_3, where phi_1 and phi_3 have opposite polarities;
- (v) irradiating the printing-composition carrier with laser beams, so that at least a part of the crosslinkable silicone composition is detached and is transferred to the deposition carrier;
- and
- (vi) forming a silicone layer by completely or partly crosslinking the silicone composition transferred to the deposition carrier.
4 more elements
Dependencies are inferred from the claim text.