ULTRA-FLEXIBLE RETROREFLECTIVE CUBE CORNER COMPOSITE SHEETINGS AND METHODS OF MANUFACTURE
摘要
A method for manufacturing flexible cube corner retroreflective sheeting comprising the steps of: a) providing a tool having a molding surface; b) applying to the molding surface a volume of a lowable resin composition; c) contacting the resin composition with a first major surface of an overlay film; d) minimizing excess resin composition; e) curing the resin composition to form a sheeting comprising an array of cube corner elements bonded to the overlay film; f) removing the sheeting from the tool; and g) applyingmechanical stress to the sheeting so as to cause a fractured separation of substantially each individual cube corner element from surrounding cube corner elements. Also, flexible retroreflective sheetings comprising: a) a two-dimensional array of substantially independent cube corner elements, the array comprising a first polymetric material, and b) an overlay film having two major surfaces and comprising a second polymeric material, the array being bonded to the first major surface of the overlay film. Also safety devices incorporating such sheetings.
申请公布号
WO9511464(A2)
申请公布日期
1995.04.27
申请号
WO1994US11940
申请日期
1994.10.20
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
BENSON, OLESTER, JR.;FREY, CHERYL, M.;SHUSTA, JEANINE, M.;NESTEGARD, SUSAN, K.;LIGHTLE, VERA, L.;SMITH, KENNETH, L.;BACON, CHESTER, A., JR.