Patent ID: 6318867
Filing Date: 2001-11-20
Classification: B29C,G02B,Y10S,Y10T

Abstract:
A method for making a conformable cube corner retroreflective sheeting, comprising:a) providing a tool having a molding surface which comprises a plurality of raised protrusions and retroreflective element-forming cavities adapted for molding a cube corner retroreflective sheeting comprising a plurality of cube corner segments, each cube corner segment comprising a plastic body portion having a substantially planar front major surface and at least one cube corner retroreflective element projecting rearwardly therefrom and defining a cube corner point side of said cube corner segment, the peripheries of said cube corner segments being defined by a plurality of separations extending from said cube corner point sides of said cube corner segments to said front major surfaces of said cube corner segments;b) placing a thermoplastic sheet on said tool;c) heating the resin of said sheet to a temperature at least as high as its softening temperature;d) pressing said sheet onto the molding surface of said tool to thereby form a plurality of said cube corner segments;e) conformably bonding the cube corner segments together with a conformable carrier layer to form said conformable sheeting; andf) removing said conformable sheeting from said tool.