Patent ID: 7659003
Filing Date: 2010-02-09
Classification: C08L,C09J,Y10T

Abstract:
1. A pressure sensitive adhesive film comprising: a substrate film; and a pressure sensitive adhesive layer formed on a surface of the substrate film, said pressure sensitive adhesive layer being prepared from a silicone composition comprising: (A) a diorganopolysiloxane having at least two alkenyl groups per molecule; (B) a polyorganosiloxane comprising an R (C) a polyorganosiloxane having an SiH bond, characterized in that the diorganopolysiloxane (A) contains alkenyl groups in an amount of from 0.002 to 0.05 mole per 100 g of the diorganopolysiloxane (A), the polyorganosiloxane (C) is contained in such an amount that a molar ratio of the SiH bond to the alkenyl group of the diorganopolysiloxane (A) ranges from 0.5 to 20, a mass ratio of the diorganopolysiloxane (A) to the polyorganosiloxane (B) comprising an R the adhesive layer has an adhesion strength ranging from 0.01 to 0.5 N/10 mm measured according to the 180-degree peel test specified in the Japanese Industrial Standard Z 0237 on a film composed of a polyethylene terephthalate film having a thickness of 25 μm and the adhesive layer having a thickness of 30 μm provided on the polyethylene terephthalate film, wherein said pressure sensitive adhesive film is transparent and is suitable to apply on a surface of a flat panel display.