To provide an epoxy resin-based adhesive sheet which can keep thickness of an adhesive layer even after heating and curing, can suppress occurrence of warpage after adhesion to an adherend having different coefficients of linear expansion, and has good adhesive strength to an adherend such as a steel sheet and aluminum.SOLUTION: An adhesive sheet includes a resin layer (A) composed of an epoxy resin composition (a), and a resin layer (B) composed of an epoxy resin composition (b), wherein a gel fraction is 30 mass% or more and 95 mass% or less, and the resin layer (B) is uncured.SELECTED DRAWING: None
【課題】加熱硬化後においても接着剤層の厚みが保持でき、線膨張係数の異なる被着体との接着後における反りの発生を抑制でき、かつ、鋼板やアルミ等の被着体への接着強度が良好であるエポキシ樹脂系の接着シートを提供することを目的とする。【解決手段】本発明の一態様に係る接着シートは、エポキシ樹脂組成物(a)からなる樹脂層(A)と、エポキシ樹脂組成物(b)からなる樹脂層(B)とを備え、ゲル分率が30質量%以上95質量%以下であり、前記樹脂層(B)が未硬化である。【選択図】なし
ADHESIVE SHEET AND CURED PRODUCT USING THE SAME, LAMINATE, AND EXTERIOR MATERIAL FOR AUTOMOBILE
接着シート及びこれを用いた硬化物、積層体並びに自動車用外装材
06.10.2022
Patent
Elektronische Ressource
Japanisch
IPC: | C09J ADHESIVES , Klebstoffe / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B62D MOTOR VEHICLES , Motorfahrzeuge |
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