Patent ID: 7910046
Filing Date: 2011-03-22
Classification: A61N,B29C,B29L,B32B,Y10T

Abstract:
1. A method of laminating a first cover sheet to a first side of a substrate and simultaneously laminating a second cover sheet to a second side of said substrate, comprising the steps of: inserting said substrate into a press; inserting said first cover sheet into said press on said first side of said substrate; inserting said second cover sheet into said press on second side of said substrate; then injecting liquid thermoset polymer into said press on both sides of said substrate; applying heat and pressure into said press forcing said liquid thermoset polymer against said first cover sheet and said second cover sheet and forcing said first cover sheet and said second cover sheet against said substrate; allowing said liquid thermoset polymer to at least partially cure under heat and pressure forming a first at least partially cured silicone rubber sheet on said first side of said substrate and forming a second at least partially cured silicone rubber sheet on said second side of said substrate; removing said substrate, said first cover sheet and aid second cover sheet from said press; and removing said first at least cured silicone rubber sheet and second at least partially cured silicon rubber sheet from said first and second cover sheet, respectively; whereby said first cover sheet and second cover sheet are laminated to said substrate through the force of pressure from said liquid thermoset polymer.