ADHESIVE SHEET AND METHOD OF PRODUCING ADHEREND LAMINATE

PROBLEM TO BE SOLVED: To provide an adhesive sheet which has reworkability and excellent adhesion after rework.SOLUTION: In an adhesive sheet 1, an adhesive layer 3 is arranged between a first separator 5 and a second separator 7, and the adhesive layer 3 changes in the adhesive strength of the cont...

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Bibliographische Detailangaben
Hauptverfasser:	SAKAI MIWAKO, FUJISAKI JUNICHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY DYES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS PERFORMING OPERATIONS POLISHES TRANSPORTING USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an adhesive sheet which has reworkability and excellent adhesion after rework.SOLUTION: In an adhesive sheet 1, an adhesive layer 3 is arranged between a first separator 5 and a second separator 7, and the adhesive layer 3 changes in the adhesive strength of the contact surface in contact with an adherend before and after heating. The adhesive layer 3 is composed of an adhesive composition comprising at least an adhesive, a fine powder and an adhesion imparting resin of a weight average molecular weight of 800 or higher, and the surface roughness of one surface is adjusted to 0.01-0.3 μm. 【課題】リワーク性が良好で、リワーク後の接着性も優れた粘着シートを提供する。【解決手段】第１セパレータ５と第２セパレータ７の間に粘着層３を配置した粘着シート１である。粘着層３は被着体との接触面の粘着力が加熱の前後で変化する。粘着層３は、少なくとも粘着剤と微粒子と重量平均分子量が８００以上の粘着付与樹脂を含有する粘着剤組成物により形成されており、かつ一方の表面の表面粗さが０．０１μｍ以上０．３μｍ以下に調整されている。【選択図】図１