公开(公告)号：US3733381A

公开(公告)日：1973-05-15

申请号：US3733381D

申请日：1970-12-31

Applicant: STANDARD OIL CO

Inventor： WILLETTE E ,  MAZUR C

IPC: B29C44/00 ,  B29C51/14 ,  B32B27/00 ,  B29D27/00

CPC classification number: B32B27/065 ,  B29C51/14 ,  B29C67/20 ,  B32B1/02 ,  B32B27/00 ,  B32B37/203 ,  B32B38/145 ,  B32B2309/02 ,  Y10T428/24736

Abstract: POLYMERIC MATERIAL, WITH GAS INJECTION, IS CONTINUOUSLY EXTRUDED TO FORM A CONTINUOUS WEB OF FOAM. THE WEB IS THEN DIRECTLY LAMINATED AND THE ARTICLE OF MANUFACTURE IS DIRECTLY THERMOFORMED FROM THE LAMINATED WEB. OPTIONALLY, THE WEB SURFACE CAN BE PRINTED UPON BEFORE LAMINATION. THE PROVIDES AN ARTICLE HAVING A CELLUAR-STRUCTURE POLYMERIC SUBSTRATE HAVING AN IMPRINTED SURFACE PROTECTED BY A LAMINAR-LIKE COATING.