公开(公告)号：US3629037A

公开(公告)日：1971-12-21

申请号：US3629037D

申请日：1968-01-31

Applicant: MITSUBISHI PETROCHEMICAL CO

Inventor： MASUDA KOHEI ,  UCHIGAKI TAKU ,  ARAI MASAKAZU

IPC: B05D1/26 ,  B29C47/06 ,  B32B27/00

CPC classification number: B05D1/26 ,  B29C47/0021 ,  B29C47/003 ,  B29C47/065 ,  B29C47/145 ,  B32B27/00

Abstract: A process for the production of laminated film which comprises extruding from an extruder die a melted resin having a high neckin-forming property together with another melted resin having a lower neck-in-forming property, then laminating the extruded resin in the form of a melted compounded film with a base material.

公开(公告)号：US3578527A

公开(公告)日：1971-05-11

申请号：US3578527D

申请日：1968-03-11

Applicant: MITSUBISHI PETROCHEMICAL CO

Inventor： SAKATA RIKITA ,  MASUDA KOHEI ,  UCHIGAKI TAKU ,  ARAI MASAKAZU

IPC: B29C63/00 ,  B05D3/04 ,  B29C43/22 ,  B29C47/14 ,  B29C47/88 ,  B29C53/00 ,  B29C61/00 ,  B32B27/00 ,  B32B37/00 ,  B29C23/00

CPC classification number: B32B27/00 ,  B05D1/265 ,  B05D3/0466 ,  B05D2252/00 ,  B29C43/22 ,  B29C47/0021 ,  B29C47/14 ,  B29C47/8845 ,  B29C47/886

Abstract: A METHOD FOR PRODUCING COMPOSITE LAMINATED ARTICLES BY EXTRUDING A THIN FILM OF MELTED RESIN SUCH AS POLYETHYLENE, POLYPROPYLENE, AND THE LIKE, ONTO A BASE MATERIAL SUCH AS PAPER, METALLIC FOIL AND THE ILKE, THE MELTED RESIN BEING EXTRUDED AT ITS OXIDIZING TEMPERATURE WHEREBY THE SURFACE OPPOSITE TO THE SURFACE TO BE BONDED TO THE BASE MATERIAL OF THE EXTRUDED FILM IS COVERED BY INERT GAS WHILE THE BONDING SURFACE IS OXIDIZED BY THE AIR SUCH THAT THE NON-BONDING SURFACE IS PREVENTED FROM BEING OXIDIZED BY THE AIR. BY THIS METHOD, A LAMINATED COMPOSITE ARTICLE HAVING SUPERIOR ADHERING PROPERTIES BETWEEN THE RESIN FILM AND THE BASE AND HAVING SUPERIOR HEAT SEALING PROPERTIES, WITHOUT OFFENSIVE ODORS, IS OBTAINED. APPARATUS FOR CARRYING OUT THE ABOVE-MENTIONED METHOD WHEREIN MEANS PROVIDING AN APPARATUS FOR ISSUING INERT GAS IS PROVIDED ADJACENT TO THE MOUTH PIECE OF THE RESIN EXTRUDER.