SURFACE PROTECTING FILM AND ACRYLIC RESIN PLATE SURFACE PROTECTED WITH THE SAME FILM

摘要

PURPOSE: To obtain the subject film useful for an acrylic resin plate for an optical product, having a tacky layer comprising an ethylene-vinyl acetate copolymer on one surface of a substrate layer composed of a high-density PE, and having a specific thickness ratio and excellent shearing properties, cutting properties and adhesiveness. ;CONSTITUTION: This film has (B) a tacky layer comprising an ethylene-vinyl acetate copolymer having 18-25wt.% vinyl acetate content on (A) one surface of a substrate layer composed of a high-density PE and the thickness ratio of the component A to the component B of 4/1 to 8/1. The component A has preferably 0.94-0.97g/cm³ density and the component B has preferably 2-15 melt flow rate. The whole thickness of this film is preferably 50-100μm. Lamination of an acrylic resin plate with the film is preferably carried out at 25-70°C of the resin plate temperature. The tack in the lamination is preferably 40-70gf/25mm when measured under conditions of 25mm width and 180° peel.;COPYRIGHT: (C)1996,JPO