Verfahren zur Herstellung eines Artikels, Haftzusammensetzung und Schäumbare Haftfolie

Details

Veröffentlichungs-Nr.

EP4711431

Anmeldetag

12. Mai 2023

Veröffentlichung

21. November 2024

Rechtsraum

EP

Abstract

The present disclosure provides a method for producing a product, the method comprising: a placing step of placing an adhesive composition, including a thermosetting resin and a foaming agent, between a first member and a second member; and an adhering step of adhering the first member and the second member by foaming and curing the adhesive composition by heating, wherein the foaming agent is a thermally expandable microcapsule; A < B when following conditions are satisfied, in a foaming ratio-time curve where time is on a horizontal axis and a foaming ratio of the foaming agent is on a vertical axis, when a differential scanning calorimetry is carried out to the foaming agent, using a differential scanning calorimeter including a camera, under heating conditions in the adhering step, a slope of a tangent line to the curve at a top of a peak, on a longer time side of the peak, is regarded as A, and in a DSC curve where time is on a horizontal axis and a heat flow is on a vertical axis, when a differential scanning calorimetry is carried out to the adhesive composition under the heating conditions in the adhering step, a slope of a tangent line to the curve at a top of an exothermic peak, on a longer time side of the exothermic peak, is regarded as B; and the adhesive composition is heated so that T1 < T2 when following conditions are satisfied in the adhering step, in a foaming ratio-time curve where time is on a horizontal axis and a foaming ratio of the foaming agent is on a vertical axis, when a differential scanning calorimetry is carried out to the foaming agent, using a differential scanning calorimeter including a camera, time corresponding to a top of a peak is regarded as T1, and in a DSC curve where time is on a horizontal axis and a heat flow is on a vertical axis, when a differential scanning calorimetry is carried out to a composition where the foaming agent is excluded from the adhesive composition, time corresponding to a top of an exothermic peak is regarded as T2.

Anmelder

Firma

Dai Nippon Printing Co., Ltd.

Land

🇯🇵 Japan