Patent ID: 8226398
Filing Date: 2012-07-24
Classification: B29C

Abstract:
1. A method for inflation extrusion molding of pressure-sensitive adhesive sheet, said method comprising: extruding resin materials respectively from a plurality of extruders to introduce the resin materials into a die, extruding the respective resin materials from the die into cylindrical body inflated to have a predetermined diameter in accordance with an inflation method, and passing the cylindrical body through a space between two stabilizers facing each other at a predetermined angle so as to upwardly approach each other, thereby preparing a pressure-sensitive adhesive sheet having a predetermined width, wherein the stabilizers are rotated in one direction around the center axis of the cylindrical body while the cylindrical body is passed through the space between the stabilizers, and wherein the stabilizers each have air floating portions each having an indentation formed at a surface of the stabilizer and an air outlet provided in proximity to a center of the indentation are used, whereby the air blown from said air outlets spreads over interiors of said indentation to act as a contact pressure to float the sheet.