Method for releasing adhered article
First Claim
1. A separation method of an adherend, which is a method of separating an adherend stuck by using an adhesive, wherein the adhesive comprises as an adhesive component polyvinyl acetal resins, and comprises the steps of:
- air-tightly sealing the adherend together with at least one substance selected from the group consisting of air, carbon dioxide, nitrogen, oxygen, methane, ethane, propane, and butane in a pressure resistant container, making the inside of the pressure resistant container in a high pressure state of 5 MPa or higher, and releasing the pressure of the inside of the pressure resistant container, and wherein water is further sealed in the pressure resistant container in the step of air-tightly sealing the adherend together with said at least one substance in the pressure resistant container, whereby the polyvinyl acetal resins are not dissolved.
1 Assignment
0 Petitions
Accused Products
Abstract
It is an object of the invention to provide a separation method of an adherend capable of easily and reliably separating an adherend stuck using an adhesive, a method for recovering an electronic part from an electronic part laminate, and a separation method of laminate glass.
The invention provides a separation method of an adherend, which is a method of separating an adherend stuck by using an adhesive, and comprises the steps of: air-tightly sealing the adherend together with a fluid being a gas at a normal temperature and normal pressure in a pressure resistant container, making the inside of the pressure resistant container in a high pressure state, and releasing the pressure of the inside of the pressure resistant container.
9 Citations
16 Claims
-
1. A separation method of an adherend, which is a method of separating an adherend stuck by using an adhesive, wherein the adhesive comprises as an adhesive component polyvinyl acetal resins, and comprises the steps of:
air-tightly sealing the adherend together with at least one substance selected from the group consisting of air, carbon dioxide, nitrogen, oxygen, methane, ethane, propane, and butane in a pressure resistant container, making the inside of the pressure resistant container in a high pressure state of 5 MPa or higher, and releasing the pressure of the inside of the pressure resistant container, and wherein water is further sealed in the pressure resistant container in the step of air-tightly sealing the adherend together with said at least one substance in the pressure resistant container, whereby the polyvinyl acetal resins are not dissolved. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
8. A method of recovering an electronic part from an electronic part laminate, which is a method of recovering an electronic part from an electronic part laminate stuck by an adhesive, wherein the adhesive comprises as an adhesive component polyvinyl acetal resins, and comprises the steps of:
- air-tightly sealing the electronic part laminate together with at least one substance selected from the group consisting of air, carbon dioxide, nitrogen, oxygen, methane, ethane, propane, and butane in a pressure resistant container;
making the inside of the pressure resistant container in a high pressure state of 5 MPa or higher; and
releasing the pressure of the inside of the pressure resistant container, and wherein water is further sealed in the pressure resistant container in the step of air-tightly sealing the adherend together with said at least one substance in the pressure resistant container. - View Dependent Claims (9, 10, 11)
- air-tightly sealing the electronic part laminate together with at least one substance selected from the group consisting of air, carbon dioxide, nitrogen, oxygen, methane, ethane, propane, and butane in a pressure resistant container;
-
12. A method for separating a laminate glass, which is a method for separating a laminate glass obtained by sticking a plurality of glass sheets with an adhesive or an interlayer film for the laminate glass into glass sheets and either the adhesive or an interlayer film for laminate glass, wherein the adhesive or interlayer film comprises as an adhesive component polyvinyl acetal resins, and comprises the steps of:
- air-tightly sealing the laminate glass together with at least one substance selected from the group consisting of air, carbon dioxide, nitrogen, oxygen, methane, ethane, propane, and butane in a pressure resistant container of 5 MPa or higher;
making the inside of the pressure resistant container in a high pressure state; and
releasing the pressure of the inside of the pressure resistant container, and wherein water is further sealed in the pressure resistant container in the step of air-tightly sealing the adherend together with said at least one substance in the pressure resistant container. - View Dependent Claims (13, 14, 15, 16)
- air-tightly sealing the laminate glass together with at least one substance selected from the group consisting of air, carbon dioxide, nitrogen, oxygen, methane, ethane, propane, and butane in a pressure resistant container of 5 MPa or higher;
Specification