MANUFACTURING METHOD OF THERMOPLASTIC RESIN FOAMED LAMINATED SHEET

• Main Authors: HANADA AKIRA, OMURA YOSHINORI
• Format: Patent
• Language: English
• Published: 12.04.2007
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PROBLEM TO BE SOLVED: To provide a thermoplastic resin foamed laminated sheet having a good appearance. SOLUTION: The method comprises laminating a sheet (1) containing a thermoplastic resin foamed layer (A) and a sheet (2) containing a specified unfoamed thermoplastic resin layer (C) through an adhesive resin layer (B) to produce a thermoplastic resin foamed laminated sheet with the unfoamed thermoplastic resin layer (C) serving as one surface layer. The method comprises a process 1 of superimposing the sheet (1) containing the foamed resin layer (A) and the sheet (2) containing the unfoamed resin layer (C) in the order of sheet (1)/(B)/sheet (2) and feeding the resultant laminate between a pair of rolls and a process 2 of melting the adhesive resin layer (B) with the heat of the rolls in contact with the unfoamed resin layer (C) and pressing the sheet (1), the adhesive resin layer (B) and the sheet (2) with the rolls to laminate and integrate. COPYRIGHT: (C)2007,JPO&INPIT