SELF-ADHESIVE FILM

PROBLEM TO BE SOLVED: To provide a self-adhesive film which can be removed easily without a silicone resin sticking to an adherend glass surface even when a long time has passed after the film was adhered to the glass surface.SOLUTION: Provided is a self-adhesive film having an adsorption layer lami...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: IRIE HIROAKI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a self-adhesive film which can be removed easily without a silicone resin sticking to an adherend glass surface even when a long time has passed after the film was adhered to the glass surface.SOLUTION: Provided is a self-adhesive film having an adsorption layer laminated on a substrate film, the adsorption layer containing a silicone resin as a main component. The adsorption layer is formed by coating and curing a silicone composition comprising a diorganopolysiloxane having at least two alkenyl groups in one molecule, an organohydrogenpolysiloxane, and a reactive resin having a silanol group in a molecule. The diorganopolysiloxane has a weight average molecular weight of 20,000 to 600,000. Furthermore, a ratio of a number average molecular weight of the diorganopolysiloxane and the number of alkenyl groups contained in one molecule thereof is set at 5,000 to 160,000, and a content of the reactive resin in the silicone composition is set at 1 to 15 wt%. 【課題】被着体である、ガラス面に貼り付けて長時間経過した場合であっても、ガラス面にシリコーン樹脂が固着せず、再剥離が容易な自己貼着性フィルムを提供する。【解決手段】基材フィルム上に、シリコーン樹脂を主成分とする吸着層を積層した自己貼着性フィルムにおいて、前記吸着層が、1分子中に少なくとも2個以上のアルケニル基を有するジオルガノポリシロキサンと、オルガノハイドロジェンポリシロキサン、及び分子中にシラノール基を有する反応性レジンからなるシリコーン組成物を塗布、硬化してなり、前記ジオルガノポリシロキサンの重量平均分子量が20,000〜600,000であり、かつ前記ジオルガノポリシロキサンの数平均分子量/1分子中に含まれるアルケニル基の数の比を5,000〜160,000、前記シリコーン組成物中の前記反応性レジンの含有量を1〜15重量%とした自己貼着性フィルム。【選択図】 なし