Adhesive agent, adhesive material using the same, and method of use thereof
View Patent ↗An adhesive agent comprising a condensation resin having a structural unit obtained by polycondensing a polymerizable monomer containing a monomer (A) having 2 or more carboxyl groups and a monomer (B) having 2 or more amino groups, and meeting at least one of the following (1) and (2), and the following (3): (1) at least one selected from the group consisting of the monomer (A), an anhydride of the monomer (A). and the monomer (B) is liquid at 25° C.; (2) the condensation resin has a polyoxyalkanediyl group; and (3) the monomer (A) contains an isophthalic acid.
1. A method of using an adhesive agent comprising:
an application step of applying a second adherend to a first adherend via an adhesive layer containing the adhesive agent;
a heating step of heating the first adherend and the second adherend under a condition such that a temperature of the adhesive layer is 200° C. or higher; and
a peeling step of peeling the adhesive layer and the second adherend from the first adherend subjected to the heating step;
wherein the adhesive agent comprises a condensation resin having a structural unit obtained by polycondensing a polymerizable monomer containing a monomer (A) having 2 or more carboxyl groups and a monomer (B) having 2 or more amino groups, and meeting the following (1), (2), and (3), or the following (2) and (3):
(1) at least one selected from the group consisting of the monomer (A), an anhydride of the monomer (A), and the monomer (B) is liquid at 25° C.;
(2) the condensation resin has a polyoxyalkanediyl group; and
(3) the monomer (A) contains an isophthalic acid; and
wherein a structure derived from the monomer (B) in the structural unit has a polyoxyalkanediyl group.
2. The method according to claim 1 , wherein the first adherend and the second adherend are applied at 0 to 50° C. in the application step.
3. The method according to claim 1 , wherein the adhesive layer and the second adherend are peeled from the first adherend at 0 to 50° C. in the peeling step.
4. The method according to claim 1 , wherein the adhesive layer peeled in the peeling step is reused in another application step.
5. A method of using an adhesive material comprising:
an application step of applying the adhesive material to an adherend such that the adhesive layer is disposed on a side of the adherend;
a heating step of heating the adherend under a condition such that the temperature of the adhesive material is 200° C. or higher; and
a peeling step of peeling the adhesive material from the adherend subjected to the heating step;
wherein the adhesive material comprises a substrate and an adhesive layer containing an adhesive agent formed on the substrate;
wherein the adhesive agent comprises a condensation resin having a structural unit obtained by polycondensing a polymerizable monomer containing a monomer (A) having 2 or more carboxyl groups and a monomer (B) having 2 or more amino groups, and meeting the following (1), (2), and (3), or the following (2) and (3):
(1) at least one selected from the group consisting of the monomer (A), an anhydride of the monomer (A), and the monomer (B) is liquid at 25° C.;
(2) the condensation resin has a polyoxyalkanediyl group; and
(3) the monomer (A) contains an isophthalic acid; and
wherein a structure derived from the monomer (B) in the structural unit has a polyoxyalkanediyl group.
6. The method according to claim 5 , wherein the adhesive material is applied to the adherend at 0 to 50° C. in the application step.
7. The method according to claim 5 , wherein the adhesive material is peeled from the adherend at 0 to 50° C. in the peeling step.
8. The method according to claim 5 , wherein the adhesive material peeled in the peeling step is reused in another application step.