Patent ID: 6692607
Filing Date: 2004-02-17
Classification: B29C,B29K,B29L,B32B

Abstract:
A method for manufacturing a molded multilayer article by molding a multilayer sheet consisting of a plurality of polymer layers, comprising:extruding a plurality of monolayers of molten polymers by forcing the molten polymers into a multiple T die formed by an assembly of T dies so that the molten polymers are extruded from slot openings of respective T dies forming the assembly; forming an intermediate molten multilayer by superposing and laminating the monolayers extruded through the T dies outside the respective T dies while the polymers are in a molten state of a semi-molten state, feeding the intermediate molten multilayer to a compression mold having the bottom half mold and a top half mold by advancing the multiple T die into a space between the bottom half mold and the top half mold; cutting the intermediate molten multilayer to a predetermined length; and molding the intermediate molten multilayer in the compression mold into a multilayer article of desired shape, wherein the intermediate molten multilayer is cut at a position below the die slot openings of the T dies of the multiple T die with respect to a direction in which the monolayers are extruded, and wherein a cutting process for cutting the intermediate molten multilayer comprises the steps of: disposing a pair of pad members at a position below the die slot openings of the T dies of the multiple T die, holding the intermediate molten multilayer between the pair of pad members; cooling a portion of the intermediate molten multilayer held between the pair of pad members; and cutting the intermediate molten multilayer along the cooled portion thereof.