ADHESIVE SET, FILM, BONDED BODY, AND METHOD FOR SEPARATING ADHEREND
An adhesive set is disclosed. This adhesive set includes a main agent containing a compound having two or more isocyanate groups and a curing agent containing a compound having two or more hydroxyl groups. At least one of the compound having two or more isocyanate groups and the compound having two or more hydroxyl groups has a disulfide bond in the molecule. At least one of the main agent and the curing agent further contains a curing catalyst. At least one of the main agent and the curing agent further contains a photoradical generator.
1 . An adhesive set comprising:
a main agent comprising a compound having two or more isocyanate groups; and
a curing agent comprising a compound having two or more hydroxyl groups,
wherein at least one of the compound having two or more isocyanate groups and the compound having two or more hydroxyl groups has a disulfide bond in a molecule,
at least one of the main agent and the curing agent further comprises a curing catalyst, and
at least one of the main agent and the curing agent further comprises a photoradical generator.
2 . The adhesive set according to claim 1 , wherein the curing catalyst is a tin-based curing catalyst.
3 . The adhesive set according to claim 1 , wherein the curing catalyst is a zirconium-based curing catalyst.
4 . A film comprising a cured product of an adhesive composition comprising the main agent and the curing agent in the adhesive set according to claim 1 .
5 . A film comprising:
a polymer comprising a monomer unit having two or more isocyanate groups and a monomer unit having two or more hydroxyl groups; and
a photoradical generator,
wherein at least one of the monomer unit having two or more isocyanate groups and the monomer unit having two or more hydroxyl groups has a disulfide bond in a molecule.
6 . A bonded body comprising:
a first adherend;
a second adherend; and
an adhesive layer adhering the first adherend and the second adherend to each other,
wherein the adhesive layer comprises a cured product of an adhesive composition comprising the main agent and the curing agent in the adhesive set according to claim 1 .
7 . An adherend separation method for separating an adherend from the bonded body according to claim 6 , the adherend separation method comprising irradiating the adhesive layer of the bonded body with light and then separating the first adherend and the second adherend.