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US 2022/0032600 A1Published application
Separation method and bonding method for adherend
AssigneeNitto Denko Corporation
InventorsRyo AWANE, Akira HIRAO, Kaori AKAMATSU, Kaori MIZOBATA
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Abstract
A separation method for an adherend according to the present invention allows members to firmly bond to each other by recovery of adhesive force when a predetermined time elapses after a voltage has been applied and can easily separate the adherend by applying the voltage again, and a bonding method for an adherend according to the present invention allows members to firmly bond to each other by recovery of adhesive force when a predetermined time elapses after a voltage has been applied.
Claims16
A separation method for an adherend, comprising:
- a first voltage application step of applying a voltage to an electrolyte-containing adhesive layer to change an adhesive force so as to generate a potential difference in a thickness direction of the electrolyte-containing adhesive layer in a state where the electrolyte-containing adhesive layer in an adhesive sheet containing at least the electrolyte-containing adhesive layer is allowed to bond to an adherend;
- a bonding maintenance step of recovering the adhesive force by allowing a predetermined time to elapse in the state where the electrolyte-containing adhesive layer is allowed to bond to the adherend, after the first voltage application step;
- a second voltage application step of applying a voltage to the electrolyte-containing adhesive layer to change the adhesive force so as to generate a potential difference in the thickness direction of the electrolyte-containing adhesive layer in the state where the electrolyte-containing adhesive layer is allowed to bond to the adherend, after the bonding maintenance step;
- and
- a separation step of separating the electrolyte-containing adhesive layer and the adherend.
2 more elements
A bonding method comprising:
- a first voltage application step of applying a voltage to an electrolyte-containing adhesive layer to change an adhesive force so as to generate a potential difference in a thickness direction of the electrolyte-containing adhesive layer in a state where the electrolyte-containing adhesive layer in an adhesive sheet containing at least the electrolyte-containing adhesive layer is allowed to bond to an adherend;
- and
- a bonding maintenance step of recovering the adhesive force by allowing a predetermined time to elapse in the state where the electrolyte-containing adhesive layer is allowed to bond to the adherend, after the first voltage application step.
Dependencies are inferred from the claim text.