IN-MOLD COMPOSITE SURFACE FILM

To provide a multilayer film that can be used as an in-mold composite surface film.SOLUTION: An in-mold surface film for structural composites in the form of a thermosetting multilayer film comprises (a) a release carrier, (b) a surface film layer located on the release carrier and containing OH-fun...

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Bibliographische Detailangaben
Hauptverfasser:	MATTHEW PAUL AMICK, ERIC ORVIS
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	To provide a multilayer film that can be used as an in-mold composite surface film.SOLUTION: An in-mold surface film for structural composites in the form of a thermosetting multilayer film comprises (a) a release carrier, (b) a surface film layer located on the release carrier and containing OH-functional polyurethane and a heat-activatable curing agent capable of reacting with OH groups at temperatures greater than 120°C and (c) a release liner. Also provided is a method of preparing a composite article in-mold using prepregs and multilayer films.SELECTED DRAWING: Figure 1 【課題】インモールド複合表面フィルムとして使用することができる多層フィルムを提供する。【解決手段】（ａ）剥離キャリアと、（ｂ）剥離キャリアの上にある表面フィルム層であって、ＯＨ官能性ポリウレタンと、１２０℃より高い温度でＯＨ基と反応することができる熱活性化性硬化剤とを含む表面フィルム層と、（ｃ）剥離ライナーとを含む、熱硬化性の多層フィルムの形態の構造複合材用インモールド表面フィルムとする。また、プリプレグ及び多層フィルムを使用してインモールドで複合物品を調製する方法も提供する。【選択図】図１